A gas barbecue capable of recovering waste heat

Abstract

The utility model relates to gas barbecue stove technical field, propose a kind of gas barbecue stove capable of recycling waste heat, comprising: gas barbecue stove body;Setting on the gas barbecue stove body smoke extraction subassembly;First three-way joint is connected on the input end of smoke extraction subassembly;Two first connecting pipes are fixedly connected in symmetry in the other two ends of first three-way joint;Second three-way joint is fixedly connected in the other end of first connecting pipe;Through smoke extraction subassembly, and in the cooperation of first three-way joint, first connecting pipe, second three-way joint, air pipe, filtration and purification subassembly, air inlet pipe and gas collection cover, oil fume can be extracted, while extracting, after filtration and purification subassembly, oil fume can be filtered and purified, last purified flue gas is discharged from exhaust component, to reduce pollution in air, provide more clean, comfortable dining environment for customer.

Description

Technical Field

[0001] This utility model relates to the field of gas-fired barbecue grill technology, specifically to a gas-fired barbecue grill capable of recovering waste heat. Background Technology

[0002] A gas-fired barbecue grill uses liquefied petroleum gas or natural gas as fuel and heats the gas heating plate through electronic pulse ignition to grill food indirectly or directly. Its core principle is that the gas combustion generates heat, which is conducted or radiated to the grill pan to achieve smokeless or low-smoke grilling.

[0003] Chinese utility model patent CN221769815U discloses a multi-functional gas barbecue grill, including a frame, a grill body mounted on the frame, and a combustion assembly inside the grill body. The frame has a double door on the front. A through hole is provided on the bottom plate of the frame, with a gas cylinder mounting bracket below the through hole and a locking bracket above the through hole. The combustion assembly includes two sets of large-diameter burner pipes and one set of small-diameter burner pipes. A fire distribution plate is provided above the burner pipes, and the front and rear sides of the fire distribution plate are engaged with a fixed bracket. A barbecue grill and a heat-preserving net are arranged sequentially above the fire distribution plate, and an oil collection tray is located below the fire distribution plate. An ignition device is provided between the combustion assemblies. A left-side platform and a gas stove are respectively located on both sides of the grill body. A long strip-shaped notch is provided below the rear plate of the grill body. This utility model has a novel structure; the double door is tightly connected and will not detach; the rear plate of the grill body is rotatable, and the fire distribution plate is detachable to achieve open flame; at the same time, the gas cylinder mounting bracket can accommodate gas cylinders of different diameters and can lock them in place, improving the safety of gas use.

[0004] However, the following problems were found in the implementation of the relevant technology: serious oil fume pollution. During the grilling process, the oil fumes are directly emitted into the air, which not only affects the surrounding environment, but may also harm the health of users and customers. In addition, the heat generated during grilling is directly emitted into the air, resulting in a large waste of residual heat. Utility Model Content

[0005] This utility model proposes a gas-fired barbecue grill that can recover waste heat, solving the problems of serious oil fume pollution in related technologies. During the grilling process, oil fumes are directly emitted into the air, which not only affects the surrounding environment but may also harm the health of users and customers. In addition, the heat generated during grilling is directly emitted into the air, resulting in a large waste of waste heat.

[0006] The technical solution of this utility model is as follows: A gas-fired barbecue grill capable of recovering waste heat, comprising:

[0007] Gas-fired barbecue grill body;

[0008] A smoke extraction component is installed on the main body of the gas-fired barbecue grill;

[0009] A first tee connector connected to the input end of the smoking assembly;

[0010] Two first connecting pipes are symmetrically and fixedly connected to the other two ends of the first tee joint;

[0011] A second tee connector is fixedly connected to the other end of the first connecting pipe;

[0012] Two air extraction pipes are symmetrically and fixedly connected to the other two ends of the second three-way connector;

[0013] A filter and purification assembly fixedly installed at the top of the exhaust pipe;

[0014] Two air inlet pipes are symmetrically and fixedly installed on the top of the filter and purification assembly;

[0015] A gas collection hood is fixedly connected to the other end of the air intake pipe;

[0016] Auxiliary grilling components are installed on the main body of the gas-fired barbecue grill;

[0017] An exhaust assembly fixedly connected to the output end of the smoke extraction assembly;

[0018] And a waste heat assembly connected to the exhaust assembly, with the other end of the waste heat assembly connected to the auxiliary baking assembly.

[0019] Preferably, the smoke extraction assembly includes a fan fixedly mounted on the bottom wall of the gas barbecue grill body via a mounting bracket, an extraction pipe fixedly connected to the output end of the fan, an exhaust pipe fixedly connected to the input end of the fan, and the first tee connector fixedly connected to the exhaust pipe.

[0020] Preferably, the exhaust assembly includes a third tee connector fixedly connected to the extraction pipe, one end of the third tee connector being fixedly connected to an exhaust pipe, and a switch valve being provided on the outer wall of the exhaust pipe.

[0021] Preferably, the waste heat assembly includes a second connecting pipe fixedly connected to one end of the third tee connector, a branch pipe fixedly connected to the other end of the second connecting pipe, an inlet pipe fixedly connected to both ends of the branch pipe, and the outlet end of the inlet pipe is connected to the auxiliary baking assembly.

[0022] Preferably, the auxiliary grilling component includes a fixed box inserted into the tray of the gas grill body, and the gas outlet end of the inlet pipe is fixedly connected to the fixed box, and strip plates are fixedly installed on both sides of the inner wall of the fixed box.

[0023] A baking rack is provided on the inside of the fixed box, and the baking rack is located above the strip plate. A rectangular opening is provided on one side of the fixed box, and a collection box is inserted into the fixed box through the rectangular opening.

[0024] Preferably, the filtration and purification assembly includes a fixed housing fixedly installed on the air extraction pipe, and the air inlet pipe is fixedly installed on the top of the filtration and purification assembly. A fixed plug is inserted into an opening on one side of the fixed housing, and four mounting brackets are fixedly installed on one side of the fixed plug from top to bottom.

[0025] One side of the fixing plug is provided with a honeycomb fume filter, an air filter, a HEPA filter and an activated carbon filter from top to bottom, and the honeycomb fume filter, the air filter, the HEPA filter and the activated carbon filter are respectively located inside the four mounting brackets.

[0026] Preferably, a rubber sealing ring is fitted on the outer wall of the fixing plug.

[0027] Preferably, a fixing frame is fixedly installed on both sides of the fixing shell, a T-shaped rod is provided through the inner bottom wall of the fixing frame, a fixing clamp is fixedly installed at the bottom of the T-shaped rod, a spring is provided on the inner side of the fixing frame, and the spring is located on the outer wall of the vertical end of the T-shaped rod.

[0028] The working principle and beneficial effects of this utility model are as follows:

[0029] 1. Through the smoke extraction assembly, and with the cooperation of the first tee connector, the first connecting pipe, the second tee connector, the extraction pipe, the filter and purification assembly, the air inlet pipe and the air collection hood, the oil fumes can be extracted. At the same time, the oil fumes are filtered and purified by the filter and purification assembly. Finally, the purified fumes are discharged from the exhaust assembly, thereby reducing air pollution and providing customers with a cleaner and more comfortable dining environment.

[0030] 2. By manually closing the valve on the exhaust assembly, the flue gas extracted through the smoke extraction assembly, the first three-way connector, the first connecting pipe, the second three-way connector, the extraction pipe, the filter purification assembly, the air inlet pipe and the gas collection hood will be transported from the waste heat assembly to the auxiliary baking assembly, thereby effectively recovering waste heat and keeping the food placed on the auxiliary baking assembly warm, making full use of gas energy. Attached Figure Description

[0031] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0032] Figure 1 This is a schematic diagram of the overall structure proposed in this utility model;

[0033] Figure 2This is a schematic diagram of the upward-view structure proposed in this utility model;

[0034] Figure 3 A schematic diagram of the structure of the smoking extraction component is provided for this utility model;

[0035] Figure 4 This utility model provides a structural schematic diagram of a filtration and purification component;

[0036] Figure 5 A structural schematic diagram of the fixing frame is provided for this utility model;

[0037] Figure 6 A schematic diagram of the waste heat recovery assembly is provided for this utility model;

[0038] Figure 7 A schematic diagram of the auxiliary baking component is provided for this utility model;

[0039] Figure 8 This utility model proposes Figure 4 A magnified structural diagram at point A in the diagram.

[0040] In the picture: 1. Gas barbecue grill body;

[0041] 2. Smoke extraction assembly; 21. Exhaust fan; 22. Extraction pipe; 23. Discharge pipe;

[0042] 3. First tee connector; 4. First connecting pipe; 5. Second tee connector; 6. Evacuation pipe;

[0043] 7. Filter and purification components; 71. Fixing housing; 72. Fixing plug; 73. Mounting bracket; 74. Honeycomb fume filter;

[0044] 8. Air intake pipe; 9. Air collection hood;

[0045] 10. Auxiliary baking components; 101. Fixing box; 102. Strip plate; 103. Baking rack; 104. Collection box;

[0046] 11. Exhaust assembly; 1101. Third tee connector; 1102. Exhaust pipe; 1103. Switch valve;

[0047] 12. Waste heat recovery assembly; 1201. Inlet pipe; 1202. Branch pipe; 1203. Second connecting pipe;

[0048] 13. Rubber sealing ring; 14. Fixing frame; 15. T-shaped rod; 16. Fixing clip; 17. Spring. Detailed Implementation

[0049] The technical solutions of this utility model will be clearly and completely described below with reference to the embodiments of this utility model. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. 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.

[0050] Example 1

[0051] Please see Figure 1 - Figure 8 A gas-fired barbecue grill capable of recovering waste heat, comprising:

[0052] Gas-fired barbecue grill body 1;

[0053] A smoke extraction assembly 2 is installed on the main body 1 of the gas-fired barbecue grill;

[0054] The first tee connector 3 is connected to the input end of the smoking assembly 2;

[0055] Two first connecting pipes 4 are symmetrically and fixedly connected at the other two ends of the first tee joint 3;

[0056] The second tee connector 5 is fixedly connected to the other end of the first connecting pipe 4;

[0057] Two air extraction pipes 6 are symmetrically and fixedly connected to the other two ends of the second tee joint 5;

[0058] A filter purification assembly 7 is fixedly installed at the top of the exhaust pipe 6;

[0059] Two air inlet pipes 8 are symmetrically and fixedly installed on the top of the filter and purification assembly 7;

[0060] A gas collection hood 9 is fixedly connected to the other end of the air intake pipe 8;

[0061] Auxiliary grilling component 10 is installed on the main body 1 of the gas grill;

[0062] An exhaust assembly 11 is fixedly connected to the output end of the smoke extraction assembly 2;

[0063] And a waste heat assembly 12 connected to the exhaust assembly 11, with the other end of the waste heat assembly 12 connected to the auxiliary baking assembly 10.

[0064] This utility model provides a gas-fired barbecue grill capable of recovering waste heat. During use, the grill body 1 grills food. Simultaneously, the smoke extraction component 2 is activated. The smoke extraction component 2 then draws air from inside the filter and purification component 7 through the first three-way connector 3, the first connecting pipe 4, the second three-way connector 5, and the exhaust pipe 6, creating suction within the filter and purification component 7. The fumes generated during grilling then enter the filter and purification component 7 through the gas collection hood 9 and the air inlet pipe 8 for filtration. The filtered gas then passes through the exhaust pipe 6, the second three-way connector 5, and the first connecting pipe... 4. The first three-way connector 3 and the smoke extraction component 2 are finally discharged from the exhaust component 11, thereby reducing air pollution and providing customers with a cleaner and more comfortable dining environment. Then, when it is necessary to recover residual heat and keep the food placed on the auxiliary grill component 10 warm, the valve on the exhaust component 11 is manually closed. After that, the gas purified by the filter and purification component 7 will enter the auxiliary grill component 10 from the residual heat component 12. Then, the purified gas in the auxiliary grill component 10 rises and dissipates through the food on the auxiliary grill component 10, thereby keeping the food placed on the auxiliary grill component 10 warm.

[0065] Furthermore, the smoke extraction assembly 2 includes a fan 21 fixedly installed on the inner bottom wall of the Azi gas barbecue grill body 1 via a fixing bracket. The output end of the fan 21 is fixedly connected to an extraction pipe 22, and the input end of the fan 21 is fixedly connected to an exhaust pipe 23. The first tee connector 3 is fixedly connected to the exhaust pipe 23.

[0066] Specifically, the exhaust fan 21 is started, and then the exhaust fan 21, through the discharge pipe 23, and with the cooperation of the first three-way connector 3, the first connecting pipe 4 and the second three-way connector 5, can adsorb and purify the oil fumes. The purified fumes are transported to the exhaust assembly 11 or the waste heat assembly 12 through the extraction pipe 22, so that the gas can be directly discharged and released, or transported to the auxiliary baking assembly 10 for waste heat recovery and utilization.

[0067] Furthermore, the exhaust assembly 11 includes a third tee connector 1101 fixedly connected to the extraction pipe 22, one end of the third tee connector 1101 is fixedly connected to an exhaust pipe 1102, and a switch valve 1103 is provided on the outer wall of the exhaust pipe 1102.

[0068] Specifically, through the third three-way connector 1101 and the exhaust pipe 1102, the gas purified by the filter purification component 7 can be directly discharged into the environment. Then, when waste heat recovery is required, the switch valve 1103 on the exhaust pipe 1102 is manually closed, so that the purified flue gas can enter the waste heat component 12 through the third three-way connector 1101 and be transported to the auxiliary baking component 10.

[0069] Furthermore, the waste heat assembly 12 includes a second connecting pipe 1203 fixedly connected to one end of the third tee connector 1101, and a branch pipe 1202 fixedly connected to the other end of the second connecting pipe 1203. Both ends of the branch pipe 1202 are fixedly connected to inlet pipes 1201, and the outlet end of the inlet pipe 1201 is connected to the auxiliary baking assembly 10.

[0070] Specifically, when the switching valve 1103 is closed, the purified gas will enter the auxiliary baking assembly 10 from the second connecting pipe 1203, the branch pipe 1202 and the inlet pipe 1201, thereby enabling the recovery and utilization of waste heat.

[0071] Furthermore, the auxiliary grilling component 10 includes a fixed box 101 inserted into the tray of the gas grill body 1, and the gas outlet of the inlet pipe 1201 is fixedly connected to the fixed box 101. Strip plates 102 are fixedly installed on both sides of the inner wall of the fixed box 101.

[0072] A baking rack 103 is provided on the inner side of the fixed box 101, and the baking rack 103 is located above the strip plate 102. A rectangular opening is provided on one side of the fixed box 101, and a collection box 104 is inserted into the fixed box 101 through the rectangular opening.

[0073] Specifically, the cooked food is placed on the grilling rack 103 by hand. When the gas in the fixed box 101 rises, it passes through the grilling rack 103 and escapes, thus keeping the food on the grilling rack 103 warm. The dripping residue or grease can then be collected by the collection box 104.

[0074] Furthermore, the filter purification assembly 7 includes a fixed housing 71 fixedly installed on the air extraction pipe 6, and an air inlet pipe 8 fixedly installed on the top of the filter purification assembly 7. A fixed plug 72 is inserted into the opening on one side of the fixed housing 71, and four mounting brackets 73 are fixedly installed on one side of the fixed plug 72 from top to bottom.

[0075] A honeycomb fume filter 74, an air filter, a HEPA filter, and an activated carbon filter are respectively provided on one side of the fixing plug 72 from top to bottom, and the honeycomb fume filter 74, the air filter, the HEPA filter, and the activated carbon filter are located inside the four mounting brackets 73.

[0076] Specifically, the honeycomb fume filter 74, air filter, HEPA filter, and activated carbon filter can filter and purify the fumes passing through the fixed housing 71, thereby reducing air pollution. Then, the fixed plug 72 can be manually pulled outward, which will cause the mounting bracket 73, honeycomb fume filter 74, air filter, HEPA filter, and activated carbon filter to be pulled out of the fixed housing 71, making it easy to clean or replace the honeycomb fume filter 74, air filter, HEPA filter, and activated carbon filter on the mounting bracket 73.

[0077] Furthermore, a rubber sealing ring 13 is fitted onto the outer wall of the fixing plug 72.

[0078] Specifically, the rubber sealing ring 13 can improve the sealing effect between the fixed plug 72 and the fixed shell 71, thereby preventing oil fumes from escaping from the gap between the fixed shell 71 and the fixed plug 72.

[0079] Example 2

[0080] Based on Embodiment 1, in this embodiment: a fixing frame 14 is fixedly installed on both sides of the fixing shell 71, a T-shaped rod 15 is provided through the inner bottom wall of the fixing frame 14, a fixing clip 16 is fixedly installed at the bottom of the T-shaped rod 15, a spring 17 is provided on the inner side of the fixing frame 14, and the spring 17 is located on the outer wall of the vertical end of the T-shaped rod 15.

[0081] The technical solution provided in this embodiment is as follows: the spring force of the spring 17 pushes the T-shaped rod 15, so that the T-shaped rod 15 stably drives the fixing clamp 16 to rise under the action of the fixing frame 14, and the fixing clamp 16 engages with the fixing plug 72, thereby blocking and limiting the fixing plug 72 inserted in the fixing shell 71, preventing the fixing plug 72 from accidentally sliding out of the fixing shell 71, and thus avoiding affecting the filtration and purification effect.

[0082] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A gas-fired barbecue grill capable of recovering waste heat, characterized in that, include: Gas-fired barbecue grill body (1); Smoke extraction assembly (2) is installed on the gas grill body (1); A first tee connector (3) is connected to the input end of the smoking assembly (2); Two first connecting pipes (4) are symmetrically fixedly connected to the other two ends of the first tee joint (3); A second tee connector (5) is fixedly connected to the other end of the first connecting pipe (4); Two air extraction pipes (6) are symmetrically fixedly connected to the other two ends of the second three-way connector (5); A filter purification assembly (7) is fixedly installed on the top of the exhaust pipe (6); Two air inlet pipes (8) are symmetrically fixedly installed on the top of the filter purification assembly (7); A gas collection hood (9) is fixedly connected to the other end of the air inlet pipe (8); Auxiliary grilling component (10) is installed on the main body (1) of the gas grill; An exhaust assembly (11) is fixedly connected to the output end of the smoke extraction assembly (2); And a waste heat assembly (12) connected to the exhaust assembly (11), with the other end of the waste heat assembly (12) connected to the auxiliary baking assembly (10).

2. A gas-fired barbecue grill capable of recovering waste heat according to claim 1, characterized in that: The smoke extraction assembly (2) includes a fan (21) fixedly installed on the inner bottom wall of the gas barbecue grill body (1) by a fixing bracket. The output end of the fan (21) is fixedly connected to an extraction pipe (22), the input end of the fan (21) is fixedly connected to an exhaust pipe (23), and the first three-way connector (3) is fixedly connected to the exhaust pipe (23).

3. A gas-fired barbecue grill capable of recovering waste heat according to claim 2, characterized in that: The exhaust assembly (11) includes a third tee connector (1101) fixedly connected to the extraction pipe (22), one end of the third tee connector (1101) is fixedly connected to an exhaust pipe (1102), and a switch valve (1103) is provided on the outer side wall of the exhaust pipe (1102).

4. A gas-fired barbecue grill capable of recovering waste heat according to claim 3, characterized in that: The waste heat assembly (12) includes a second connecting pipe (1203) fixedly connected to one end of the third tee connector (1101), and a branch pipe (1202) fixedly connected to the other end of the second connecting pipe (1203). Both ends of the branch pipe (1202) are fixedly connected to inlet pipes (1201), and the outlet end of the inlet pipe (1201) is connected to the auxiliary baking assembly (10).

5. A gas-fired barbecue grill capable of recovering waste heat according to claim 4, characterized in that: The auxiliary grilling component (10) includes a fixed box (101) inserted into the tray of the gas grill body (1), and the gas outlet of the inlet pipe (1201) is fixedly connected to the fixed box (101). Strip plates (102) are fixedly installed on both sides of the inner wall of the fixed box (101). The inner side of the fixed box (101) is provided with a baking rack (103), and the baking rack (103) is located above the strip plate (102). A rectangular opening is provided on one side of the fixed box (101), and a collection box (104) is inserted into the fixed box (101) through the rectangular opening.

6. A gas-fired barbecue grill capable of recovering waste heat according to claim 1, characterized in that: The filter purification assembly (7) includes a fixed housing (71) fixedly installed on the air extraction pipe (6), and the air inlet pipe (8) fixedly installed on the top of the filter purification assembly (7). A fixed plug (72) is inserted into the opening on one side of the fixed housing (71), and four mounting brackets (73) are fixedly installed on one side of the fixed plug (72) from top to bottom. One side of the fixing plug (72) is provided with a honeycomb fume filter (74), an air filter, a HEPA filter and an activated carbon filter from top to bottom, and the honeycomb fume filter (74), the air filter, the HEPA filter and the activated carbon filter are respectively located inside the four mounting brackets (73).

7. A gas-fired barbecue grill capable of recovering waste heat according to claim 6, characterized in that: A rubber sealing ring (13) is fitted on the outer wall of the fixing plug (72).

8. A gas-fired barbecue grill capable of recovering waste heat according to claim 6, characterized in that: A fixing frame (14) is fixedly installed on both sides of the fixing shell (71). A T-shaped rod (15) is provided through the inner bottom wall of the fixing frame (14). A fixing clip (16) is fixedly installed at the bottom of the T-shaped rod (15). A spring (17) is provided on the inner side of the fixing frame (14), and the spring (17) is located on the outer wall of the vertical end of the T-shaped rod (15).

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