A gas range with high-temperature flue gas heating air into the burner head combustion

Abstract

The utility model discloses a kind of high-temperature flue gas heating air furnace head combustion gas big pot stove, belong to gas stove technical field, including rack, furnace bellow, superconducting heat exchanger and fan are installed on rack, furnace bellow bottom is equipped with furnace head, the top of furnace bellow is provided with flue along circumference, flue is equipped with flue pipe, flue pipe is installed along flue coiling, superconducting heat exchanger includes shell, superconducting plate, air inlet passage and air outlet passage, air inlet passage is through shell, one end is connected fan by pipeline, the other end is connected furnace head by pipeline, air outlet passage is through shell, one end is connected the export end of flue pipe by pipeline, shell is installed with superconducting plate, and superconducting plate is located between air inlet passage and air outlet passage. The scheme is used as heat converter by superconducting heat exchanger, high-temperature flue gas discharged by pot stove is heated to the air of furnace head, to improve energy utilization.

Description

Technical Field

[0001] This utility model belongs to the field of gas stove technology, specifically a gas stove that uses high-temperature flue gas to heat air before it enters the burner for combustion. Background Technology

[0002] Gas stoves are kitchen appliances that use gas (such as natural gas or liquefied petroleum gas) as fuel to generate heat through combustion for cooking food. They are widely used in homes, restaurants, canteens, and other places, and are an indispensable cooking tool in modern life. Stoves can be divided into household stoves and Chinese cooking stoves. Generally, those with a heat load of 6000 calories or more are Chinese cooking stoves, while those with a heat load of less than 6000 calories are household stoves. In addition, depending on the size of the pot, Chinese cooking stoves with a diameter of 60cm or more are also called large pot stoves, mainly used in schools, military units, and large unit canteens for cooking large pot dishes. Gas large pot stoves produce flue gas when in use. This flue gas is at a high temperature, and direct discharge is very wasteful. Current gas stove technology has a low utilization rate of high-temperature flue gas. Moreover, gas stoves usually exhaust flue gas through a flue. If an exhaust port is opened in the flue and the exhaust pipe is directly connected to the exhaust port, the flame will be deflected towards the exhaust port due to the influence of flue gas flow, resulting in uneven heating of the pot and affecting the cooking effect. Utility Model Content

[0003] The purpose of this invention is to provide a gas-fired large pot stove that uses high-temperature flue gas to heat air for combustion in the burner, thereby solving at least one aspect of the problems and defects mentioned in the background art.

[0004] The system includes a frame on which a furnace, a superconducting heat exchanger, and a fan are mounted. The furnace has a burner head at the bottom and a flue at the top, with a flue tube coiled inside. The superconducting heat exchanger includes a shell, a superconducting plate, an inlet channel, and an outlet channel. The inlet channel penetrates the shell, with one end connected to the fan via a pipe and the other end connected to the burner head via a pipe. The outlet channel penetrates the shell, with one end connected to the outlet end of the flue tube via a pipe. The superconducting plate is installed inside the shell, located between the inlet channel and the outlet channel.

[0005] Furthermore, the flue includes an inner circumferential plate, an outer circumferential plate, a partition plate, and a top plate. The partition plate is installed circumferentially on the top of the furnace chamber, the inner circumferential plate is installed along the inner ring of the partition plate, the outer circumferential plate is installed along the outer ring of the partition plate, and the top plate covers the top of the inner circumferential plate and the outer circumferential plate. The inner circumferential plate has several through flue gas holes along its wall.

[0006] Furthermore, a vertical plate is installed on the top of the frame, and a water tap is installed on the vertical plate, with the water tap located above the furnace chamber.

[0007] Furthermore, a top plate is installed on the top of the frame, and an opening is opened on the top plate, with the outer wall of the outer plate abutting against the wall of the opening.

[0008] Furthermore, side plates are installed on both sides of the frame, and the superconducting heat exchanger and fan are located between the two side plates.

[0009] Furthermore, several exhaust holes are provided on the side panel to connect to the interior of the frame.

[0010] Furthermore, a guide plate is installed on the outer wall of the side panel, which covers the exhaust hole and has an outlet at the bottom.

[0011] Furthermore, a chimney connected to the flue is installed on the outer wall of the flue.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0013] 1. This scheme utilizes the high-temperature flue gas discharged from the furnace chamber to heat the air to be fed into the furnace head in a superconducting heat exchanger. Since the molecular motion of hot air is more intense than that of cold air, when hot air is introduced into the furnace head, the hot air and the combustion gas can mix more quickly and fully, allowing more combustion gas to react fully during the combustion process. This scheme improves the utilization rate of combustion gas and enhances combustion efficiency by utilizing high-temperature flue gas.

[0014] 2. This scheme uses a superconducting heat exchanger for heat conversion. The superconducting heat exchanger is equipped with a superconducting plate, which utilizes the properties of superconducting materials to achieve more efficient heat transfer.

[0015] 3. In this scheme, the flue pipe is installed coiled inside the flue. The flue gas in the furnace is discharged into the flue and then discharged along the flue pipe. Since the flue pipe is installed coiled and has a certain length, the flue gas in the flue is discharged along the flue pipe under pressure. Therefore, the process of discharging the flue gas through the flue is more stable, the flue gas flow is more gentle, and the impact on the degree of fire deviation is smaller. Attached Figure Description

[0016] To facilitate understanding by those skilled in the art, the present invention will be further described below with reference to the accompanying drawings.

[0017] Figure 1 This is a schematic diagram of the overall structure of the present invention after the left side panel has been removed;

[0018] Figure 2 for Figure 1 The front view;

[0019] Figure 3 for Figure 1 Rear view;

[0020] Figure 4 for Figure 3 Schematic diagram after removing the outer panel of the flue

[0021] Figure 5 for Figure 1 The left view;

[0022] Figure 6 for Figure 1 A bottom view of A;

[0023] Figure 7 for Figure 5 Internal structure diagram of a superconducting heat exchanger;

[0024] Figure 8 This is a schematic diagram of the furnace chamber and flue structure;

[0025] Figure 9 for Figure 8 Schematic diagram of the structure after removing the outer panel of the flue;

[0026] Figure 10 This is a top view of the furnace chamber and flue after the upper plate has been removed.

[0027] In the diagram: 1. Frame; 101. Vertical plate; 1011. Water tap; 102. Top plate; 103. Side plate; 1031. Guide plate; 2. Furnace chamber; 201. Furnace head; 202. Flue; 203. Gas pipeline; 204. Gas switch; 205. Flue; 2051. Partition; 2052. Inner enclosure plate; 2053. Flue gas vent; 2054. Top plate; 2055. Outer enclosure plate; 206. Chimney; 3. Fan; 4. Superconducting heat exchanger; 401. First joint; 402. Second joint; 403. Third joint; 404. Fourth joint; 405. Air inlet channel; 406. Air outlet channel; 407. Fixing plate; 408. Superconducting plate. Detailed Implementation

[0028] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only for explaining the present utility model and are not intended to limit the present utility model; that is, the described embodiments are only some embodiments of the present utility model, and not all embodiments. The components of the embodiments of the present utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0029] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0030] Please see Figure 1-9As shown in the embodiment of this utility model, a gas-fired large pot stove for heating air into the burner head by high-temperature flue gas includes a frame 1. The frame 1 has a hollow structure on all six sides: front, back, left, right, top, and bottom. A furnace liner 2, a fan 3, and a superconducting heat exchanger 4 are installed on the frame 1. A burner head 201 is provided at the bottom of the furnace liner 2. The burner head 201 is connected to a gas pipe 203, through which gas is introduced (the connection between the gas pipe 203 and the burner head 201 is not shown). A flue 205 is provided circumferentially at the top of the furnace liner 2. A flue pipe 202 is provided inside the flue liner 205 and is installed coiled around the flue liner 205.

[0031] The flue 205 includes a baffle 2051, an inner circumferential plate 2052, an upper plate 2054, and an outer circumferential plate 2055. The baffle 2051 is an annular plate installed on the top of the furnace 2. The baffle 2051 is sealed and fitted to the top of the furnace 2. The inner circumferential plate 2052 is installed along the inner ring of the baffle 2051, and the outer circumferential plate 2055 is installed along the outer ring of the baffle 2051. The upper plate 2054 covers the top of the inner circumferential plate 2052 and the outer circumferential plate 2055. The inner circumferential plate 2052 has several through flue gas holes 2053. The inlet end of the flue pipe 202 is located in the flue 205, and the outlet end of the flue pipe 202 passes through the outer circumferential plate 2055.

[0032] The superconducting heat exchanger 4 includes a shell, an inlet channel 405, an outlet channel 406, and a superconducting plate 408. The inlet channel 405 penetrates the shell, with a third connector 403 at one end and a fourth connector 404 at the other end. The third connector 403 is connected to a fan 3 via a pipe, and the fourth connector 404 is connected to a furnace head 201 via a pipe. The outlet channel 406 penetrates the shell, with a first connector 401 at one end and a second connector 402 at the other end. The first connector 401 is connected to a fan 3 via a fan 3. The pipe connects to the outlet end of the flue pipe 202. The second connector 402 is connected to the flue gas purifier through the pipe (due to the messy pipes, for clearer display, the connections between each pipe and the superconducting heat exchanger 4 are not shown. The flue gas purifier is existing technology and is used to filter and purify flue gas, so it is not shown). A fixing plate 407 and a superconducting plate 408 are installed inside the housing. The fixing plate 407 is fixedly installed inside the housing, and the superconducting plate 408 is installed on the fixing plate 407. The superconducting plate 408 is located between the air inlet channel 405 and the air outlet channel 406.

[0033] In use, first install the pot (not shown) on the pot ring (the pot ring is installed on the inner ring of the upper plate 2054), then turn on the gas switch 204 on the gas pipe 203 to introduce gas into the burner head 201 through the gas pipe 203. The amount of gas introduced can be adjusted as needed using the gas switch 204. The burner head 201 is existing technology; after the gas is introduced, the burner head 201 can be ignited. Because the pot installed on top of the flue 205 will block the flue gas from overflowing from the top (most existing pots are sealed and installed on top of the furnace chamber 2, but this solution does not), A flue 205 is installed at the top of the inner chamber 2 (the pot seal is installed at the top of the flue 205). Therefore, the high-temperature flue gas generated during use will enter the flue 205 through the flue gas hole 2053 of the inner shroud 2052. When there is a lot of flue gas in the flue 205, the pressure inside the flue 205 increases. Under the action of pressure, the flue gas will enter the flue pipe 202 at the inlet end and enter the exhaust channel 406 through the outlet end of the flue pipe 202 to provide a heat source for heat exchange. After heat exchange, the flue gas enters the flue gas purifier through the pipe and is discharged after treatment. Because the flue pipe 202 is coiled and has a certain length, the flue gas flows more smoothly when exiting the flue 205. The flame in the inner chamber 2 is less affected by the flue gas, and the flame is less likely to shift, making the bottom of the pot more evenly heated. At this time, the fan 3 switch is turned on, and the fan 3 draws in air from the outside and introduces it into the air intake channel 405 through the pipeline. The air then exchanges heat with the high-temperature flue gas in the superconducting heat exchanger 4 and the air outlet channel 406. The heated air then enters the furnace head 201 through the pipeline. This scheme utilizes the high-temperature flue gas generated in the furnace chamber 2 through the superconducting heat exchanger 4 to heat the air entering the furnace head 201, thereby improving the utilization rate of the gas and increasing the combustion efficiency.

[0034] The heat exchanger used for heat conversion is a superconducting heat exchanger 4, which contains a superconducting plate 408 made of superconducting material. Utilizing the properties of superconducting material, heat is rapidly transferred from high-temperature regions to low-temperature regions. Its heat transfer efficiency is far higher than that of traditional heat exchangers, significantly improving the overall performance of the heat exchanger.

[0035] In one embodiment, see Figure 1 As shown, a vertical plate 101 is installed on the top of the frame 1, and a water tap 1011 is installed on the vertical plate 101. The water tap 1011 is connected to a water supply source (not shown) through a pipe. The water tap 1011 is located above the furnace 2 and provides water to the pot on the furnace 2 through the water tap 1011.

[0036] In one embodiment, as shown in Figure 1, a top plate 102 is mounted on the top of the frame 1. The top plate 102 has an opening (not shown), and the outer wall of the outer plate 2055 abuts against the wall of the opening. The top plate 102 can fill the top of the frame 1 to a certain extent, reducing the probability of debris falling from the top of the frame 1 into the frame 1, thereby reducing the probability of damage to other parts inside the frame 1 due to debris falling in.

[0037] In one embodiment, see Figure 1 As shown, side plates 103 are installed on both sides of the frame 1. The fan 3 and the superconducting heat exchanger 4 are located between the two side plates 103. The side plates 103 are fixed to the frame 1 with screws (screws are not shown). When needed, the side plates 103 can be removed by unscrewing the screws to allow operation inside the frame 1. The side plates 103 can provide a certain degree of protection for both sides of the frame 1, reducing the probability of damage to the internal components of the frame 1 due to impact forces transmitted from both sides of the frame 1.

[0038] In one embodiment, see Figure 5 As shown, the side plate 103 has several exhaust holes (not shown, covered by guide plates 1031) that connect to the interior of the frame 1. Guide plates 1031 are installed on the outer wall of the side plate 103, covering the exhaust holes. An outlet is located at the bottom of the guide plates 1031. The exhaust hole design improves the heat dissipation rate on both sides of the frame 1, and the guide plates 1031 guide the heat discharged from the exhaust ports downwards, reducing the risk of injury to pedestrians from heat dissipation on both sides.

[0039] In one embodiment, see Figure 7 As shown, a chimney 206 is installed on the outer plate 2055 of the flue 205, which connects to the flue 205. A sealing plate (not shown) is installed at the flue outlet of the chimney 206. The top of the chimney 206 is normally sealed with the sealing plate to prevent high-temperature flue gas from being discharged from the chimney 206. When the flue 205 fails to discharge normally due to an unexpected situation, the sealing plate at the top of the chimney 206 can be opened, and the chimney 206 can be connected to the flue gas purifier through a pipe to discharge the high-temperature flue gas in the flue 205.

[0040] In particular, the smoke vent 2053 may not be provided at the position of the inner panel 2052 near the chimney 206, so as to reduce the impact of smoke flow on the fire displacement.

[0041] It should be noted that all components in this solution that come into contact with high temperatures can be made of heat-resistant materials to improve the service life of the device.

[0042] The above description is merely an example and illustration of the structure of this utility model. Those skilled in the art can make various modifications or additions to the specific embodiments described or use similar methods to replace them, as long as they do not deviate from the structure of the utility model or exceed the scope defined in the claims, they should all fall within the protection scope of this utility model.

Claims

1. A gas-fired large-scale cooking stove that uses high-temperature flue gas to heat air before combustion in the burner head, characterized in that, The system includes a frame on which a furnace, a superconducting heat exchanger, and a fan are mounted. The furnace has a burner head at the bottom and a flue at the top, with a flue tube coiled inside. The superconducting heat exchanger includes a shell, a superconducting plate, an inlet channel, and an outlet channel. The inlet channel penetrates the shell, with one end connected to the fan via a pipe and the other end connected to the burner head via a pipe. The outlet channel penetrates the shell, with one end connected to the outlet end of the flue tube via a pipe. The superconducting plate is installed inside the shell, located between the inlet channel and the outlet channel.

2. The gas-fired large-scale cooking stove for heating air into the burner head according to claim 1, characterized in that, The flue includes an inner circumferential plate, an outer circumferential plate, a partition plate, and a top plate. The partition plate is installed circumferentially on the top of the furnace chamber. The inner circumferential plate is installed along the inner ring of the partition plate, and the outer circumferential plate is installed along the outer ring of the partition plate. The top plate covers the top of the inner circumferential plate and the outer circumferential plate. The inner circumferential plate has several through flue gas holes.

3. A gas-fired large-scale cooking stove for heating air into the burner head according to claim 1, characterized in that, A vertical plate is installed on the top of the frame, and a water tap is installed on the vertical plate. The water tap is located above the furnace chamber.

4. A gas-fired large-scale cooking stove for heating air into the burner head according to claim 2, characterized in that, A top plate is installed on the top of the frame, and an opening is opened on the top plate. The outer wall of the outer plate abuts against the wall of the opening.

5. A gas-fired large-scale cooking stove for heating air into the burner head according to claim 1, characterized in that, Side plates are installed on both sides of the frame, and several exhaust holes are opened on the side plates to connect to the inside of the frame.

6. A gas-fired large-scale cooking stove for heating air into the burner head according to claim 5, characterized in that, A guide plate is installed on the outer wall of the side panel, which covers the exhaust hole and has an outlet at the bottom.

7. A gas-fired large-scale cooking stove for heating air into the burner head according to claim 1, characterized in that, A chimney connected to the flue is installed on the outer wall of the flue.

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