Kitchen stove with waste heat recovery system

Abstract

The utility model discloses a kitchen stove with a waste heat recovery system, a chimney cap is fixedly connected to the rear side of the top end of a cooking bench, the chimney cap is communicated with the interior of the cooking bench through a combustion exhaust flue, and the waste heat recovery system comprises a first waste heat recovery pipeline and / or a second waste heat recovery pipeline arranged on the first waste heat recovery pipeline and / or the second waste heat recovery pipeline; the first waste heat recovery pipeline comprises a cooking bench pipeline arranged in a cooking bench and / or a chimney cap pipeline arranged in a chimney cap; the circulating water tank communicates with the first waste heat recovery pipeline and / or the second waste heat recovery pipeline through a circulating water pipeline. The first waste heat recovery pipeline and the second waste heat recovery pipeline are arranged, waste heat of the cooking bench and the smoke exhaust hood is recovered through the circulating water pipeline by means of water, the water returns to the circulating water tank after absorbing heat, and waste heat of the kitchen cooking range is recovered and utilized through hot water heated by the circulating water tank.

Description

Technical Field

[0001] The utility model relates to the technical field of waste heat recovery, in particular to a kitchen stove with a waste heat recovery system. Background Art

[0002] The kitchen is a place that people often need to enter in daily life. The kitchen stove will generate a lot of heat when cooking. In addition to the needs of cooking, part of this heat will be absorbed by the components at the edge of the stove, and the other part will be directly discharged to the outside with the smoke, resulting in heat waste. In the kitchen environment, there is a large demand for hot water, and heating the water increases the cost. Therefore, a kitchen stove with a waste heat recovery system is provided. The waste heat of the kitchen stove is recovered and heated by water, and the heated water is used in the kitchen, thereby completing the recovery and utilization of the waste heat of the kitchen stove. Utility Model Content

[0003] The utility model aims to provide a kitchen stove with a waste heat recovery system. By setting a first waste heat recovery pipeline and a second waste heat recovery pipeline, water is used to recover the waste heat of the stove and the smoke exhaust hood through a circulating water pipeline. After absorbing the heat, the water returns to the circulating water tank. The waste heat of the kitchen stove can be recovered and utilized by using the hot water heated by the circulating water tank.

[0004] In order to achieve the purpose of the utility model, the utility model provides a waste heat recovery system, wherein a chimney cap 22 is fixedly connected to the rear side of the top end of the stove 1, and the chimney cap 22 is connected to the inside of the stove 1 through a flue of combustion exhaust gas. The waste heat recovery system includes:

[0005] Arranged in the first waste heat recovery pipeline 3 and / or the second waste heat recovery pipeline 8;

[0006] The first waste heat recovery pipeline 3 includes a stove pipeline 31 built into the stove 1 and / or a chimney cap pipeline 32 built into the chimney cap 22;

[0007] The circulating water tank 4 is connected to the first waste heat recovery pipeline 3 and / or the second waste heat recovery pipeline 8 through the circulating water pipeline.

[0008] Furthermore, the stove pipeline 31 surrounds the outside of the stove eye of the stove 1.

[0009] Furthermore, the stove top pipeline 31 is configured as a spiral winding structure, and the spiral winding structure is arranged concentrically and coaxially with the stove eye.

[0010] Furthermore, the bottom surface of the smoke exhaust hood 2 is set as an air inlet, an exhaust pipe 21 is arranged on the top of the side end of the smoke exhaust hood 2, a fan 14 is arranged inside the smoke exhaust hood 2, and the second waste heat recovery pipeline 8 is arranged at the air inlet position.

[0011] Furthermore, the circulating water tank 4 also includes a hot water outlet 9, a water replenishment port 10 and an upper opening 11. The water replenishment port 10 is used to replenish water to the circulating water tank 4, the hot water outlet 9 is used to discharge the heated water in the circulating water tank 4, and the upper opening 11 is used to observe the water level and water temperature in the circulating water tank 4.

[0012] Furthermore, water pumps 12 are provided on the hot water outlet 9 pipeline, the circulating water inlet 5 pipeline and the circulating water outlet 6 pipeline, and a water system control cabinet 13 is installed outside the three water pumps 12 .

[0013] Furthermore, it also includes: an active oxygen atomization box 15, the active oxygen atomization box 15 is provided with an atomizer 16, the input end of the atomizer 16 is connected to a water supply pipe 17, the output end of the atomizer 16 is connected to a plurality of atomizing nozzles 18, and the atomizing nozzles 18 are arranged above the second waste heat recovery pipeline 8, and a mist drainage pipe 19 is provided at the bottom of the side end of the smoke exhaust hood 2.

[0014] Furthermore, an electrostatic photocatalyst electronic air purifier 20 is also arranged in the smoke exhaust hood 2 .

[0015] Furthermore, the first waste heat recovery pipeline 3 and the second waste heat recovery pipeline 8 are both titanium alloy pipelines.

[0016] Furthermore, the circulating water tank 4 is circulated and connected to the fresh air unit through a hot water pipeline. The fresh air unit includes a ventilation fan and an antifreeze coil connected to each other. The antifreeze coil contains antifreeze. The hot water pipeline surrounds the outside of the antifreeze coil to provide a heat source.

[0017] Compared with the prior art, the utility model provides a kitchen stove with a waste heat recovery system, which has the following beneficial effects:

[0018] The number of stoves of the utility model is not fixed, and several stoves can be arranged in parallel as a group. Each stove is individually provided with a first waste heat recovery pipeline and can work independently. By setting the first waste heat recovery pipeline and the second waste heat recovery pipeline, the waste heat of the stove and the smoke exhaust hood is recovered by using water through the circulating water pipeline. The water absorbs the heat and returns to the circulating water tank. The waste heat of the kitchen stove can be recovered and utilized by using the hot water heated by the circulating water tank. When the stove is in use, the temperature near the stove eye is relatively high. The first waste heat recovery pipeline with a spiral winding structure design is concentric and coaxial with the stove eye, which can better recover heat. The second waste heat recovery pipeline mainly recovers heat from high-temperature flue gas. In this way, not only can the heat of the high-temperature flue gas be recovered and utilized, but the high-temperature flue gas after cooling is also more convenient for subsequent active oxygen atomization and electrostatic purification treatment, which reduces the difficulty of treatment, reduces the harm of flue gas emissions, and is more environmentally friendly. The chimney cap can discharge the exhaust gas from the combustion chamber inside the stove. On the one hand, it can recover the heat of the exhaust gas from high-temperature combustion, and on the other hand, it can avoid discharging the gas that is not fully burned, thereby ensuring the work safety of the staff. When the utility model is in use, water is first added to the circulating water tank through the water replenishing port, and the water level is observed through the upper opening. The water in the circulating water tank enters the circulating water pipeline through the circulating water outlet, and after absorbing the waste heat and heating through the first waste heat recovery pipeline and the second waste heat recovery pipeline, it returns to the circulating water tank through the circulating water inlet. When the water in the circulating water tank is heated to a certain temperature, the hot water is released for use through the hot water outlet, thereby completing the recovery and utilization of the waste heat of the kitchen stove. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a connection diagram of the waste heat recovery system of the utility model;

[0020] Figure 2 This is a schematic diagram of the circulating water pipeline system of the utility model;

[0021] Figure 3 This is a schematic diagram of the active oxygen atomization box system of the utility model;

[0022] Figure 4 It is a schematic diagram of the composition of the utility model system;

[0023] Figure 5 This is a schematic diagram of the chimney cap structure of the utility model;

[0024] Figure 6 This is a side view of the chimney cap structure of the utility model

[0025] Figure 7 It is a structural diagram of the waste heat recovery system of the utility model.

[0026] 1 is a stove, 2 is an exhaust hood, 3 is a first waste heat recovery pipeline, 31 is a stove pipeline, 32 is a chimney cap pipeline, 4 is a circulating water tank, 5 is a circulating water inlet, 6 is a circulating water outlet, 7 is a circulating water pipeline, 8 is a second waste heat recovery pipeline, 9 is a hot water outlet, 10 is a water supply port, 11 is an upper opening, 12 is a water pump, 13 is a water system control cabinet, 14 is a fan, 15 is an active oxygen atomization box, 16 is an atomizer, 17 is a water supply pipeline, 18 is an atomizing nozzle, 19 is a mist drain pipe, 20 is an electrostatic photocatalyst electronic air purifier, 21 is an exhaust pipe, and 22 is a chimney cap. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0028] See also Figure 1-Figure 7 The utility model provides a kitchen stove with a waste heat recovery system, comprising a stove top 1, a smoke exhaust hood 2 arranged directly above the stove top 1, and a waste heat recovery system. A chimney cap 22 is fixedly connected to the rear side of the top end of the stove top 1, and the chimney cap 22 is connected to the inside of the stove top 1 through a flue. The combustion exhaust gas inside the stove top 1 is discharged through the chimney cap 22. The chimney cap pipeline 32 is arranged in the smoke channel of the chimney cap 22, and the stove top pipeline 31 and the chimney cap pipeline 32 are connected to each other.

[0029] The waste heat recovery system includes: a first waste heat recovery pipeline 3 and / or a second waste heat recovery pipeline 8, wherein the first waste heat recovery pipeline 3 includes a stove pipeline 31 and / or a chimney cap pipeline 32, and the above combination relationship lies in that the kitchen stove is in the design or renovation stage.

[0030] When the kitchen stove is in the design stage, the structure of the pipeline is not restricted, and the first waste heat recovery pipeline 3 and the second waste heat recovery pipeline 8 are selected to fully collect waste heat, or only one of them can be selected, of course, the waste heat recovery effect is weakened. Of course, one or both of the stove pipeline 31 and the chimney cap pipeline 32 can be selected.

[0031] When the kitchen stove is in the renovation stage to collect waste heat, if the stove cannot be removed, and the chimney cap can be renovated internally to reinstall the pipeline, therefore, the stovetop pipeline 31 in the kitchen stove cannot be set, and only the chimney cap pipeline 32 is selected to collect waste heat.

[0032] A circulating water tank 4, wherein the circulating water tank 4 is provided with a circulating water inlet 5 and a circulating water outlet 6, and both ends of the first waste heat recovery pipeline 3 are respectively connected to the circulating water inlet 5 and the circulating water outlet 6 through a circulating water pipeline 7;

[0033] The second waste heat recovery pipeline 8 is arranged in the smoke exhaust hood 2, and both ends of the second waste heat recovery pipeline 8 are respectively connected to the circulating water inlet 5 and the circulating water outlet 6 through the circulating water pipeline 7.

[0034] In an embodiment of the present invention, the stove pipe 31 surrounds the outside of the stove eye of the stove 1 .

[0035] In one embodiment of the present invention, the stove top pipeline 31 is configured as a spiral winding structure, and the spiral winding structure is arranged concentrically and coaxially with the stove eye.

[0036] In one embodiment of the utility model, the bottom surface of the smoke exhaust hood 2 is set as an air inlet, an exhaust pipe 21 is provided on the top of the side end of the smoke exhaust hood 2, a fan 14 is provided inside the smoke exhaust hood 2, and the second waste heat recovery pipeline 8 is provided at the air inlet position.

[0037] In one embodiment of the utility model, the circulating water tank 4 further comprises a hot water outlet 9, a water replenishment port 10 and an upper opening 11, wherein the water replenishment port 10 is used to replenish water to the circulating water tank 4, the hot water outlet 9 is used to discharge the water heated by the circulating water tank 4, the circulating water tank (4) is equipped with a limit switch and a temperature observation probe, and the upper opening 11 is used to observe the water level and water temperature in the circulating water tank 4.

[0038] In one embodiment of the utility model, water pumps 12 are provided on the hot water outlet 9 pipeline, the circulating water inlet 5 pipeline and the circulating water outlet 6 pipeline, and a water system control cabinet 13 is installed outside the three water pumps 12 .

[0039] In one embodiment of the utility model, it also includes: an active oxygen atomization box 15, the active oxygen atomization box 15 is provided with an atomizer 16, the input end of the atomizer 16 is connected to a water supply pipeline 17, the output end of the atomizer 16 is connected to a plurality of atomizing nozzles 18, and the atomizing nozzles 18 are arranged above the second waste heat recovery pipeline 8, and the bottom of the side end of the smoke exhaust hood 2 is provided with a mist drainage pipe 19.

[0040] In one embodiment of the utility model, an electrostatic photocatalyst electronic air purifier 20 is further disposed in the smoke exhaust hood 2 .

[0041] As a preferred technical solution of the present utility model, the first waste heat recovery pipeline 3 and the second waste heat recovery pipeline 8 are both titanium alloy pipelines. After the first waste heat recovery pipeline 3 is installed on the stove 1, it is encapsulated and insulated by insulating cement.

[0042] The circulating water tank 4 is circulated and connected with the fresh air unit through a hot water pipeline. The fresh air unit includes a ventilation fan and an antifreeze coil connected to each other. The antifreeze coil contains antifreeze. The hot water pipeline surrounds the outside of the antifreeze coil to provide a heat source.

[0043] The above are only preferred specific implementation methods of the utility model, but the protection scope of the utility model is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the utility model, who makes equivalent replacements or changes based on the technical scheme and utility model concept of the utility model, should be covered by the protection scope of the utility model.

Claims

1. A kitchen stove with a waste heat recovery system, comprising a stove (1), a smoke exhaust hood (2) and a waste heat recovery system, wherein a chimney cap (22) is fixedly connected to the rear side of the top end of the stove (1), and the chimney cap (22) is connected to the interior of the stove (1) through a flue for combustion exhaust, characterized in that: The waste heat recovery system comprises: Arranged in the first waste heat recovery pipeline (3) and / or the second waste heat recovery pipeline (8); The first waste heat recovery pipeline (3) comprises a stove pipeline (31) built into the stove (1) and / or a chimney cap pipeline (32) built into the chimney cap (22); The circulating water tank (4) is connected to the first waste heat recovery pipeline (3) and / or the second waste heat recovery pipeline (8) respectively through the circulating water pipeline.

2. The kitchen stove with a waste heat recovery system according to claim 1, characterized in that: The stove top pipeline (31) surrounds the outside of the stove eye of the stove top (1).

3. The kitchen stove with a waste heat recovery system according to claim 2, characterized in that: The stove top pipeline (31) is configured as a spiral winding structure, and the spiral winding structure is arranged coaxially and concentrically with the stove eye.

4. The kitchen stove with a waste heat recovery system according to claim 1, characterized in that: The bottom surface of the smoke exhaust hood (2) is configured as an air inlet, an exhaust pipe (21) is provided at the top of the side end of the smoke exhaust hood (2), a fan (14) is provided inside the smoke exhaust hood (2), and the second waste heat recovery pipeline (8) is provided at the position of the air inlet.

5. The kitchen stove with a waste heat recovery system according to claim 1, characterized in that: The circulating water tank (4) further comprises a hot water outlet (9), a water replenishment port (10) and an upper opening (11); the water replenishment port (10) is used to replenish water to the circulating water tank (4); the hot water outlet (9) is used to discharge water heated by the circulating water tank (4); a limit switch and a temperature observation probe are provided in the circulating water tank (4); and the water level and water temperature of the circulating water tank (4) are observed through the upper opening (11).

6. The kitchen stove with a waste heat recovery system according to claim 5, characterized in that: The hot water outlet (9) pipeline, the circulating water inlet (5) pipeline and the circulating water outlet (6) pipeline are all provided with water pumps (12), and a water system control cabinet (13) is installed outside the three water pumps (12).

7. The kitchen stove with a waste heat recovery system according to claim 1, characterized in that: Also includes: An active oxygen atomization box (15) is provided with an atomizer (16), an input end of the atomizer (16) is connected to a water supply pipeline (17), an output end of the atomizer (16) is connected to a plurality of atomizing nozzles (18), and the atomizing nozzles (18) are arranged above the second waste heat recovery pipeline (8), and a mist drainage pipe (19) is provided at the bottom of the side end of the smoke exhaust hood (2).

8. The kitchen stove with a waste heat recovery system according to claim 1, characterized in that: An electrostatic photocatalyst electronic air purifier (20) is also provided in the smoke exhaust hood (2).

9. The kitchen stove with a waste heat recovery system according to claim 1, characterized in that: The first waste heat recovery pipeline (3) and the second waste heat recovery pipeline (8) are both titanium alloy pipelines.

10. The kitchen stove with a waste heat recovery system according to claim 1, characterized in that: The circulating water tank (4) is circulated and connected to the fresh air unit via a hot water pipeline. The fresh air unit comprises a ventilation fan and an antifreeze coil connected to each other. The antifreeze coil contains antifreeze. The hot water pipeline surrounds the outside of the antifreeze coil to provide a heat source.

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