A detachable energy-saving furnace device

Abstract

The present invention discloses a detachable energy-saving furnace device, which includes a furnace shell and a furnace plate. The furnace shell is provided with a first opening and a second opening. The second opening extends towards the first opening to form a connecting ring. The furnace plate is provided with a first through hole and a second through hole. A furnace cover is connected between the first through hole of the furnace plate and the first opening of the furnace shell. The second through hole of the furnace plate is connected to the upper end opening of the connecting ring. A heat storage cavity is formed between the outer wall of the furnace plate and the inner wall of the furnace shell. The furnace cover is provided with exhaust holes, and the side wall of the furnace plate is provided with smoke exhaust holes. The furnace device of the present invention realizes detachable connection, reduces the use cost and improves the utilization rate; the formation of the heat storage cavity can make full use of heat energy, reduce the combustion cost, and can also reduce the residual heat temperature dissipated by the furnace shell by 30-45%, make the thermal efficiency reach 55-75%, control the noise within 65 dB, and improve the environmental quality of the operation room.

Description

Technical Field

[0001] The present invention relates to the field of stoves, and particularly to a detachable energy-saving furnace device. Background Art

[0002] In stove products, the space for combustion and heat exchange is called a furnace. The energy-saving furnace belongs to a kind of stove energy-saving technology, which can improve the heat absorption of the stove and save fuel. At present, the furnaces generally used in stoves are integrally cast, so there are the following several defects: First, a large amount of noise will be generated during use, especially when several stoves are used simultaneously, the entire kitchen operation area will be filled with noise, which not only affects work but also causes certain damage to the hearing of the chef; Second, since the inner wall of the furnace is in direct contact with the flame, after being used for a certain period of time, it will crack, resulting in the scrapping of the entire furnace, serious waste, high cost and lack of environmental protection; Third, the heat dissipation of the furnace is relatively high, and the heat cannot be stored and buffered, so the heat energy cannot be fully utilized, increasing the combustion cost. Summary of the Invention

[0003] The technical problem to be solved by the present invention is to provide a detachable energy-saving furnace device, which solves the problems of high noise, high scrapping rate, fast heat dissipation and high use cost existing in the integral casting of the furnace in the prior art.

[0004] To solve the above technical problems, the present invention is realized through the following technical solutions:

[0005] A detachable energy-saving furnace device, including a furnace shell and a stove top. The furnace shell is provided with a first opening and a second opening. The second opening extends towards the first opening to form a connecting ring. The stove top is provided with a first through hole and a second through hole. A furnace cover is connected between the first through hole of the stove top and the first opening of the furnace shell. The second through hole of the stove top is connected to the upper end opening of the connecting ring. A heat storage cavity is formed between the outer wall of the stove top and the inner wall of the furnace shell. The furnace cover is provided with exhaust holes, and the side wall of the stove top is provided with smoke exhaust holes.

[0006] Preferably, a groove is provided on the side wall of the connecting ring, and a preheating channel is formed between the groove and the heat storage cavity.

[0007] Preferably, 2-4 grooves are equidistantly spaced.

[0008] Preferably, the furnace cover includes a cylindrical hole and a cover plate. One end of the cover plate is integrally formed and connected to the upper end opening of the cylindrical hole, and the other end is bent downward to form a clamping ring. A convex platform extends outward at the first opening of the furnace shell, and the clamping ring is clamped on the convex platform. The lower end opening of the cylindrical hole is connected to the first through hole of the stove top.

[0009] Preferably, a clamping groove is provided at the lower end opening of the cylindrical hole, a first snap ring that is clamped in the clamping groove is provided at the first through hole of the stove top, a second snap ring that is clamped in the upper end opening of the connecting ring is provided at the second through hole of the stove top, and a bayonet that matches the groove is provided on the second snap ring.

[0010] Preferably, exhaust channels are provided at intervals on the side wall of the stove top, and exhaust holes are provided at intervals on the exhaust channels.

[0011] Preferably, a convex block is further provided on the inner wall of the stove top, and the convex block is located between the two exhaust channels.

[0012] Preferably, a heat insulation layer and a sound insulation layer are sequentially provided on the outer wall of the stove top, and a reflective layer is provided on the inner wall of the stove top.

[0013] The beneficial effects of the present invention are as follows: The furnace chamber device of the present invention has a simple structure. The furnace chamber is composed of a furnace chamber outer shell, a stove top and a furnace chamber cover, realizing a detachable connection, which is convenient for installation and disassembly, facilitating the replacement of individual scrapped components, reducing the use cost and increasing the utilization rate; the formation of the heat storage cavity absorbs and stores the heat energy in the stove top through the exhaust holes, acting as a heat insulation layer, making the rate of heat dissipation in the furnace chamber relatively slow, so that the heat energy can be fully utilized, reducing the combustion cost, and also reducing the temperature of the waste heat dissipated from the furnace chamber outer shell by 30-45%, reducing the room temperature in the operation room; when the cooking utensil is placed on the furnace chamber for use, a relatively sealed flame combustion space is formed between the bottom of the cooking utensil and the furnace chamber device, so that the heat energy can be more concentrated, reducing the loss of heat energy, making the thermal efficiency reach 55-75%, and at the same time the sealed combustion space can also reduce the noise generated by the flame, controlling the noise below 65 dB, meeting the first-class standard in the cooking gas large pot stove, and improving the environmental quality of the operation room. Description of the Drawings

[0014] Figure 1 is a schematic structural diagram of the present invention;

[0015] Figure 2 is Figure 1 the sectional structural diagram of A-A in

[0016] Figure 3 is a schematic structural diagram of the stove top in the present invention;

[0017] Figure 4 is a schematic structural diagram of the furnace chamber outer shell in the present invention;

[0018] Figure 5 is a schematic structural diagram of the furnace chamber cover in the present invention;

[0019] Figure 6 It is a schematic structural diagram of an existing integrally formed furnace chamber.

[0020] In the figure: 1 - furnace chamber shell; 2 - furnace plate; 3 - connecting ring; 4 - furnace chamber cover; 5 - heat storage cavity; 6 - exhaust hole; 7 - smoke exhaust hole; 8 - bump; 101 - first opening; 102 - second opening; 103 - boss; 201 - first through hole; 202 - second through hole; 203 - first snap ring; 204 - second snap ring; 205 - bayonet; 206 - smoke exhaust channel; 301 - groove; 401 - cylindrical hole; 402 - cover plate; 403 - snap ring; 404 - card slot. Specific embodiments

[0021] The following further describes the specific embodiments of the present invention with reference to the accompanying drawings. It should be noted here that the description of these embodiments is for helping to understand the present invention, but does not constitute a limitation to the present invention. In addition, the technical features involved in the various embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0022] As Figures 1-5 shown, a detachable energy-saving furnace chamber device includes a furnace chamber shell 1 and a furnace plate 2. A first opening 101 and a second opening 102 are provided on the furnace chamber shell 1. The second opening 102 extends in the direction of the first opening 101 to form a connecting ring 3. A first through hole 201 and a second through hole 202 are provided on the furnace plate 2. A furnace chamber cover 4 is connected between the first through hole 201 of the furnace plate 2 and the first opening 101 of the furnace chamber shell 1. The second through hole 202 of the furnace plate 2 is connected to the upper end opening of the connecting ring 3. A heat storage cavity 5 is formed between the outer wall of the furnace plate 2 and the inner wall of the furnace chamber shell 1. An exhaust hole 6 is provided on the furnace chamber cover 4, and a smoke exhaust hole 7 is provided on the side wall of the furnace plate 2. In the above structure, the furnace chamber shell 1, the furnace plate 2 and the furnace chamber cover 4 are all independent accessories, and the three can be connected by means of snap connection and other movable connection methods to realize the detachable installation structure of the furnace chamber device. The furnace plate 2 can be in the shape of a bowl with a wider upper part and a narrower lower part, increasing the volume of the heat storage cavity 5 and improving the heat preservation effect of the furnace chamber. A positioning block can be provided at the first opening 101 of the furnace chamber shell 1, and a positioning groove can be provided on the furnace chamber cover 4 corresponding to the positioning block to perform positioning installation between the furnace chamber cover 4 and the furnace chamber shell 1, and to better install the furnace chamber device on the stove.

[0023] A groove 301 is provided on the side wall of the connecting ring 3, and a preheating channel is formed between the groove 301 and the heat storage cavity 5. The design of the groove 301 allows a part of the long flame to enter the heat storage cavity 5 in real time, achieving a preheating effect on the cooking plate 2 in the early stage of use and a heat storage effect during the use process, making the rate of heat dissipation in the furnace chamber relatively slow, so that heat energy can be fully utilized and the combustion cost can be reduced; according to the use requirements, the groove 301 can be designed with 2-4 at equal distance intervals, making the heat in the heat storage cavity 5 more uniform. If the number of the groove 301 is designed too much, the strength of the connecting ring 3 will be reduced, affecting the connection firmness and use stability of the cooking plate 2. The depth of the groove 301 gradually increases from the bottom to the top, facilitating the entry of heat into the heat storage cavity 5.

[0024] The furnace chamber cover 4 includes a cylindrical hole 401 and a cover plate 402. One end of the cover plate 402 is integrally formed and connected to the upper opening of the cylindrical hole 401, and the other end is bent downward to form a snap ring 403. A boss 103 extends outward at the first opening 101 of the furnace chamber outer shell 1, and the snap ring 403 is stuck on the boss 103. The lower opening of the cylindrical hole 401 is connected to the first through hole 201 of the cooking plate 2. In the above structure, the internal space of the cylindrical hole 401 is used for the bottom of the cookware to be inserted, forming a relatively sealed flame combustion space between the cooking plate 2 and the bottom of the cookware, making the heat energy more concentrated to heat the cookware and reducing the noise generated by the flame; the matching design of the snap ring 403 and the boss 103 enables the furnace chamber cover 4 to be stuck on the furnace chamber outer shell 1 by its own gravity, strengthening the sealing of the heat storage cavity 5 and also facilitating the disassembly of the two. A step for abutting against the boss 103 can be formed inside the snap ring 403, preventing the snap ring 403 from being squeezed and deformed during use.

[0025] A clamping groove 404 is provided at the lower opening of the cylindrical hole 401, a first clamping ring 203 stuck in the clamping groove 404 is provided at the first through hole 201 of the cooking plate 2, a second clamping ring 204 stuck in the upper opening of the connecting ring 3 is provided at the second through hole 202 of the cooking plate 2, and a bayonet 205 matching the groove 301 is provided on the second clamping ring 204. In the above structure, the matching design of the clamping groove 404, the first clamping ring 203 and the second clamping ring 204 enables the cooking plate 2 to be clamped to the furnace chamber cover 4 and the furnace chamber outer shell 1 respectively, facilitating disassembly and assembly.

[0026] Exhaust channels 206 are provided at intervals on the side wall of the cooking plate 2, and exhaust holes 7 are provided at intervals on the exhaust channels 206. The above structure can enhance the exhaust effect, making the heat in the heat storage cavity 5 more uniform. The exhaust hole 7 can be designed as an oval hole with a wider upper part and a narrower lower part, improving the smoke suction effect and reducing the heat dissipation rate, making the rate of heat dissipation in the furnace chamber relatively slow, so that heat energy can be fully utilized and the combustion cost can be reduced.

[0027] On the inner wall of the stove top 2, there is also a convex block 8 located between two smoke exhaust channels 206. The design of the convex block 8 is beneficial to the flow of the flame and improves the thermal energy efficiency.

[0028] On the outer wall of the stove top 2, there are a heat insulation layer and a sound insulation layer arranged in sequence, and a reflection layer is arranged on the inner wall of the stove top. The heat insulation layer can be a honeycomb porous ceramic structure, which stores the heat inside the stove top 2 and continuously conducts the heat through the honeycomb holes, improving the utilization rate of heat; the sound insulation layer can be an iron-chromium-aluminum mesh, which has the effects of high temperature resistance, filtering particles and reducing the volume, reducing the flame noise; the reflection layer can be an infrared reflection mesh. Through the reflection layer, part of the excess flue gas can be reflected back to the bottom of the cookware, playing a role in continuous heating and realizing the recycling and reuse of thermal energy.

[0029] Installation process: First, connect the second through hole 202 of the stove top 2 with the upper opening of the connecting ring 3. Specifically, the second snap ring 204 on the second through hole 202 is stuck on the outer wall of the connecting ring 3, and the bayonet 205 on the second snap ring 204 is aligned with the groove 301 to form a preheating channel; then install the furnace chamber cover 4. Specifically, put the cylindrical hole 401 of the furnace chamber cover 4 into the stove top 2, so that the card slot 404 on the cylindrical hole 401 is clamped on the first snap ring 203 at the second through hole 202 of the stove top 2. Finally, squeeze hard so that the snap ring 403 on the cover piece 402 is clamped on the convex platform 103 to complete the installation of the furnace chamber.

[0030] Working principle: Place the cookware on the furnace chamber device, and the bottom of the cookware is embedded in the cylindrical hole 401, so that the stove top 2 forms a relatively sealed combustion space. After the stove is turned on, the pilot flame is introduced into the stove top 2. At this time, part of the flame will enter the heat storage cavity 5 through the preheating channel formed by the groove 301 to preheat the stove top 2. When the pilot flame burns the bottom of the pot, the hot smoke generated will enter the heat storage cavity 5 through the smoke exhaust hole 7 to keep the stove top 2 warm. Then, the heat in the heat storage cavity 5 enters the stove top 2 through the smoke exhaust hole 7 again. In this way, the bottom of the cookware can be heated up faster, improving the thermal efficiency. The arrangement of the exhaust hole 6 on the cover piece 402 allows the heat storage cavity 5 to communicate with the outside world, preventing the heat storage cavity 5 from exploding due to reasons such as temperature and pressure.

[0031] According to the experimental method in the existing standard CJ / T 392-2012 Gas Cooker for Large Pot, preliminary tests are carried out. Among them, according to the combustion noise performance test in 7.2.3.4, Table 1 is obtained, and according to the thermal efficiency performance test in 7.2.7, Table 1 is obtained:

[0032] Premise: The background noise of the test environment is less than 40 dB.

[0033] Test 1: There is no groove 301 on the connecting ring 3 of the furnace chamber shell 1, and only a plurality of irregularly arranged smoke exhaust holes 7 are provided on the inner wall of the stove top 2.

[0034] Experiment 2: There are 2 symmetrical grooves 301 on the connecting ring 3 of the furnace shell 1, and 14 exhaust channels 206 are provided on the inner wall of the furnace plate 2. One exhaust hole is provided at intervals on each exhaust channel 206.

[0035] Experiment 3: There are 2 symmetrical grooves 301 on the connecting ring 3 of the furnace shell 1, and 7 exhaust channels 206 are provided on the inner wall of the furnace plate 2. Three exhaust holes are provided at intervals on each exhaust channel 206.

[0036] Experiment 4: There are 4 symmetrical grooves 301 on the connecting ring 3 of the furnace shell 1, and 14 exhaust channels 206 are provided on the inner wall of the furnace plate 2. Three exhaust holes are provided at intervals on each exhaust channel 206.

[0037] Experiment 5: There are 2 symmetrical grooves 301 on the connecting ring 3 of the furnace shell 1, and 14 exhaust channels 206 are provided on the inner wall of the furnace plate 2. Three exhaust holes are provided at intervals on each exhaust channel 206, and a plurality of bumps 8 are provided on the side wall of the furnace plate 2 between two exhaust channels 206.

[0038] Experiment 6: There are 2 symmetrical grooves 301 on the connecting ring 3 of the furnace shell 1, and 14 exhaust channels 206 are provided on the inner wall of the furnace plate 2. Three exhaust holes are provided at intervals on each exhaust channel 206, and a plurality of bumps 8 are provided on the side wall of the furnace plate 2 between two exhaust channels 206. A honeycomb porous ceramic mesh and an iron-chromium-aluminum mesh are sequentially provided on the outer wall of the furnace plate 2, and an infrared reflection mesh is provided on the inner wall.

[0039] Comparative Experiment 1: The integrally formed furnace body 9 has no heat storage cavity. A long flame hole is provided at the central position of the furnace body 9, and an exhaust hole 10 is provided on one side of the long flame hole. That is to say, the hot smoke generated after the long flame heats the cookware is discharged from the bottom of the furnace body 9, as Figure 6 .

[0040] Comparative Experiment 2: The integrally formed furnace body 9 has no heat storage cavity. A honeycomb porous ceramic mesh and an iron-chromium-aluminum mesh are covered on the inner wall of the furnace body, and an infrared reflection mesh is provided on the inner wall. A long flame hole is provided at the central position of the furnace body 9, and an exhaust hole 10 is provided on one side of the long flame hole. That is to say, the hot smoke generated after the long flame heats the cookware is directly discharged from the bottom of the furnace body, as Figure 6 .

[0041] Table 1

[0042]

[0043]

[0044] Note: (1) No other functional layers (such as heat insulation layer, sound insulation layer, etc.) are provided on the cooking plate 2 in Tests 1 - 5.

[0045] (2) The above data are the averages obtained by testing 10 times for each of Tests 1 - 6 and Comparative Tests 1 - 2.

[0046] (3) For the detection of the heating rate, a water boiling test is conducted by putting 5 Kg of water in the cookware.

[0047] (4) For the detection of the temperature on the surface of the furnace shell and at the cover plate, the material is based on metal and its similar materials.

[0048] In summary, the furnace device of the present invention has a simple structure. The furnace consists of a furnace shell 1, a cooking plate 2, and a furnace cover 4, achieving a detachable connection, which is convenient for installation and disassembly, facilitating the replacement of individual scrapped components, reducing the use cost, and improving the utilization rate; the formation of the heat storage cavity 5 absorbs and stores the heat energy in the cooking plate 2 through the smoke exhaust hole 7, acting as a heat insulation layer, making the rate of heat dissipation in the furnace relatively slow, accelerating the heating rate, thus enabling the full utilization of heat energy, reducing the combustion cost, and also reducing the temperature of the waste heat dissipated from the furnace shell 1. As can be seen from the comparison between Test 5 and Comparative Test 1 in Table 1, it can be reduced by 36.8%, and from the comparison between Test 6 and Comparative Test 2, it can be reduced by 41.5%, improving the operation safety and reducing the room temperature in the operation area; when the cookware is placed on the furnace for use, a relatively sealed flame combustion space is formed between the bottom of the cookware and the furnace device, so that the heat energy can be more concentrated, reducing the heat energy loss, making the thermal efficiency reach 55 - 75%, and at the same time, the sealed combustion space can also reduce the noise generated by the flame, controlling the noise below 65 dB, meeting the first - level standard in the cooking gas large - pot stove, and improving the environmental quality of the operation area.

[0049] The above has described the embodiments of the present invention in detail with reference to the accompanying drawings, but the present invention is not limited to the described embodiments. For those skilled in the art, without departing from the principle and spirit of the present invention, various changes, modifications, substitutions, and variations made to these embodiments still fall within the protection scope of the present invention.

Claims

1. A detachable energy-saving furnace device, comprising a furnace shell and a furnace plate, characterized in that: The furnace shell is provided with a first opening and a second opening. The second opening extends towards the first opening to form a connecting ring. The furnace plate is provided with a first through hole and a second through hole. A furnace cover is connected between the first through hole of the furnace plate and the first opening of the furnace shell. The second through hole of the furnace plate is connected to the upper end opening of the connecting ring. A heat storage cavity is formed between the outer wall of the furnace plate and the inner wall of the furnace shell. The furnace cover is provided with exhaust holes. Smoke exhaust holes are provided on the side wall of the furnace plate. A groove is provided on the side wall of the connecting ring. A preheating channel is formed between the groove and the heat storage cavity. The furnace cover includes a cylindrical hole and a cover plate. One end of the cover plate is integrally formed and connected to the upper end opening of the cylindrical hole, and the other end is bent downward to form a clamping ring. A convex platform extends outward at the first opening of the furnace shell. The clamping ring is stuck on the convex platform. The lower end opening of the cylindrical hole is connected to the first through hole of the furnace plate.

2. The detachable energy-saving furnace device according to claim 1, characterized in that: There are 2 - 4 grooves arranged at equal intervals.

3. The detachable energy-saving furnace device according to claim 1, characterized in that: A clamping groove is provided at the lower end opening of the cylindrical hole. A first clamping ring that is stuck in the clamping groove is provided at the first through hole of the furnace plate. A second clamping ring that is stuck in the upper end opening of the connecting ring is provided at the second through hole of the furnace plate. A bayonet that matches the groove is provided on the second clamping ring.

4. A detachable energy-saving furnace device according to claim 1, characterized in that: Smoke exhaust channels are arranged at intervals on the side wall of the furnace plate. The smoke exhaust holes are arranged at intervals on the smoke exhaust channels.

5. A detachable energy-saving furnace device according to claim 4, characterized in that: Convex blocks are further provided on the inner wall of the furnace plate. The convex blocks are located between the two smoke exhaust channels.

6. A detachable energy-saving furnace device according to claim 1, wherein: A heat insulation layer and a sound insulation layer are sequentially provided on the outer wall of the furnace plate. A reflection layer is provided on the inner wall of the furnace plate.

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