Liquid paraffin fuel cooking bench for kitchen

Abstract

The invention discloses a kitchen liquid paraffin fuel cooking bench, and relates to the technical field of cooking utensils, in particular to a kitchen liquid paraffin fuel cooking bench which comprises a fuel mixing cavity, a heating pipe, an oil pump, an oil tank, a nozzle pipe, an air blower, an igniter, a cooking range and a control panel, and a first vaporization cavity and a second vaporization cavity are formed in the heating pipe; the liquid paraffin is alternately injected into the first vaporization cavity and the second vaporization cavity, so that the retention time of the liquid paraffin in the first vaporization cavity and the second vaporization cavity is prolonged, the vaporization time of the liquid paraffin is prolonged, and the vaporization efficiency of the liquid paraffin is improved; the problems that the burn-off rate is low and the oil consumption is large due to the fact that the vaporization effect of the liquid paraffin is not ideal are solved, when the paraffin is vaporized and does not enter the center pipeline, the paraffin is vaporized in the pre-storage cavity of the outer-layer sleeve, preheating is conducted through the heating element, and the vaporization efficiency of the liquid paraffin is further improved.

Description

Technical Field

[0001] The invention relates to the technical field of stoves, in particular to a liquid paraffin fuel stove for a kitchen. Background Art

[0002] Traditional kitchen stoves use liquefied coal gas, natural gas, methanol, and other fuels. These fuels are flammable and explosive, with low safety factors. Leaks during use can cause carbon monoxide poisoning and ignite with an open flame, posing a threat to the safety of users and property. Liquid paraffin, a new energy source, is safe and non-flammable. It has a high calorific value, is inflammable, can't be ignited with an open flame, is easy to transport and store, and doesn't produce carbon monoxide. Therefore, combustion systems using liquid paraffin as a fuel have been introduced to the market.

[0003] In a combustion system using liquid paraffin as fuel, the liquid paraffin first needs to be heated and vaporized. After vaporization, the paraffin is sprayed out along a nozzle tube to mix with air, and then ignited by an igniter to catch fire for use by users. However, when the liquid paraffin is heated in the heating pipe, due to the fast flow rate of the liquid paraffin, the vaporization effect of the liquid paraffin is not ideal, and paraffin droplets are sprayed along the nozzle tube, resulting in incomplete combustion, resulting in a low burnout rate, high fuel consumption, and increased cost of use. Of course, the temperature and length of the heating pipe can also be increased to solve the above problems, but this will undoubtedly increase electricity consumption and also increase cost of use. Therefore, it is necessary to improve the stove using liquid paraffin as fuel to solve the above problems. Summary of the Invention

[0004] Therefore, the present invention is made in view of the above problems. The purpose of the present invention is to provide a kitchen stove using liquid paraffin fuel, which increases the residence time of the liquid paraffin in the heating pipe, that is, increases the heating time of the liquid paraffin, so as to efficiently vaporize the liquid paraffin. The present invention achieves the above purpose through the following technical solutions: A heating tube for vaporizing liquid paraffin in a kitchen liquid paraffin fuel stove comprises: a central tube, a heating element, and an outer sleeve, with a steam exhaust port and a feed port respectively provided at both ends of the central tube; two second pistons divide the central tube into an air cavity, a first vaporization cavity, and a second vaporization cavity, and the first vaporization cavity and the second vaporization cavity are alternately injected with liquid paraffin, and the liquid paraffin is vaporized therein; the first piston does not fit the inner wall of the central tube; the two first pistons are respectively located in the first vaporization cavity and the second vaporization cavity, and two telescopic airbags are respectively connected to the first piston and the second piston; the two ends of the two telescopic tubes are respectively connected to the first piston and the second piston in the first vaporization cavity and the second vaporization cavity; the two springs respectively surround On the two telescopic tubes, one end of the spring is fixed and the other end is connected to the first piston; the gas sealing plate is slidably arranged on the central pipe, and when the two first pistons move to the root of the central pipe, they push the gas sealing plate to control the two exhaust ports to open or close synchronously; the two liquid wax sealing plates are arranged in opposite directions, and the liquid wax sealing plate is arranged in the central pipe through a resettable slide rail, and the two ends of the two slide rails are located in the first vaporization chamber and the second vaporization chamber, and the opposite ends of the two slide rails are respectively provided with elastic push plates 2; the opposite surfaces of the central pipe are connected with a buckle through a spring piece 1; the central pipe wraps the heating element and the outer casing in sequence; the two exhaust ports are connected to the nozzle pipe through the steam pipe, and the outer casing is connected to the oil pump and the oil tank through the material pipe; The nozzle tube is provided with a nozzle, the nozzle is wrapped with a guide tube, the nozzle tube is provided with a solenoid valve, the iron core of the solenoid valve extends into the nozzle tube, the valve block is slidably arranged on the iron core, the center of the bottom surface of the valve block has a certain magnetism, the upper end of the iron core limits the valve block, wherein the magnetic force of the valve block is greater than the stress of the spring; Preferably, a pre-storage cavity is provided on the outer sleeve, a third piston is provided in the pre-storage cavity, the third piston is connected to a second spring, and the two feed ports are sealed, and the liquid paraffin enters the pre-storage cavity to preheat the liquid paraffin.

[0005] Preferably, the oil pump, heating tube, blower, and nozzle tube are turned on through the control panel, and the power of the blower is controlled to adjust the flame size. The blower and nozzle tube are turned off through the control panel, and the heating element is delayed for a certain time to prevent the user from using it again in a short time.

[0006] Preferably, a micro-touch switch is provided in the root of the telescopic tube, and the micro-touch switch and the control panel jointly control the oil pump to shut down. When the telescopic tube is compressed to the extreme, the micro-touch quick close is triggered, and the oil pump stops working, allowing liquid paraffin to remain in the first vaporization chamber or the second vaporization chamber, thereby saving the time of transferring liquid paraffin to the central pipeline when the user uses it next time.

[0007] Beneficial effects of the present invention: 1. The present invention alternately injects liquid paraffin into the first vaporization chamber and the second vaporization chamber to increase the residence time of the liquid paraffin in the first vaporization chamber and the second vaporization chamber, thereby increasing the vaporization time of the liquid paraffin and improving the vaporization efficiency of the liquid paraffin, thereby avoiding the problems of low burnout rate and high fuel consumption caused by unsatisfactory vaporization effect of the liquid paraffin.

[0008] Second, in the present invention, when the paraffin vaporizes but does not enter the central pipe, the paraffin vaporizes in the pre-storage cavity of the outer sleeve and is pre-heated by the heating element, thereby further improving the vaporization efficiency of the liquid paraffin. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0010] Figure 2 This is a schematic diagram of the heating pipeline structure of the present invention.

[0011] Figure 3 This is a schematic diagram of the internal structure of the heating pipe of the present invention.

[0012] Figure 4 This is a schematic diagram of the local structure of the heating pipeline of the present invention.

[0013] Figure 5 Schematic diagram of the internal structure of the telescopic tube of the present invention.

[0014] Figure 6 Schematic diagram of the buckle structure of the present invention.

[0015] Figure 7 This is a schematic diagram of the first piston structure of the present invention.

[0016] Figure 8 This is a schematic diagram of the nozzle tube structure of the present invention.

[0017] Figure 9 This is a schematic diagram of the engagement between the second piston and the buckle of the present invention.

[0018] Figure 10 Schematic diagram of the internal movement of the nozzle tube of the present invention.

[0019] Figure 11 This is a schematic diagram of exhausting steam from the first vaporization chamber and injecting material into the second vaporization chamber according to the present invention.

[0020] Figure 12 Schematic diagram of the second vaporization chamber vaporizing liquid paraffin in the present invention.

[0021] Figure 13 This is a schematic diagram of the exhaust of the first vaporization chamber and the second vaporization chamber of the present invention. DETAILED DESCRIPTION

[0022] The preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings so that it is easy for a person skilled in the art to implement these embodiments. However, the present invention can also be implemented in various different forms. Therefore, the present invention is not limited to the embodiments described below. In addition, in order to more clearly describe the present invention, parts that are not connected with the invention will be omitted from the accompanying drawings.

[0023] like Figure 1 As shown, a fuel mixing chamber 10 is provided within the frame 100 of a kitchen stove using liquid paraffin fuel. One end of a heating tube 2 is connected to a fuel tank 5 via an oil pump 4, and the other end of the heating tube 2 is connected to a nozzle tube 3. The heating tube 2 and a blower 6 are respectively connected to the fuel mixing chamber 10. The liquid paraffin is transported to the heating tube 2 by the oil pump 4 for vaporization. After vaporization, the paraffin is sprayed along the nozzle tube 3 and mixed with air. After being ignited by an igniter, an open flame is ignited on the stove head 11. The control panel 12 is used to start the oil pump 4, the heating tube 2, the blower 6, and the nozzle tube 3, and to control the power of the blower 6 to adjust the flame size. like Figure 2-4 As shown, the heating tube 2 includes: a central pipe 20, a heating element 21, and an outer sleeve 22. An assembly plate 201 is provided in the middle of the central pipe 20, and a steam exhaust port and a feed port are respectively provided on the upper and lower surfaces of both ends of the central pipe 20. A first piston 23, a second piston 24, a telescopic airbag 25, a telescopic tube 26, a spring 27, a gas sealing plate 28, and a liquid wax sealing plate 29 are provided in the central pipe 20; wherein the number of the first piston 23, the second piston 24, the telescopic airbag 25, the telescopic tube 26, the spring 27, and the liquid paraffin sealing plate 29 are two respectively, and a rubber layer is provided on the edge of the second piston 24. The two second pistons 24 divide the center pipe 20 into three independent spaces, specifically, an air cavity between the two second pistons 24. 20-3, the two sides of the second pistons 24 are respectively the first vaporization chamber 20-1 and the second vaporization chamber 20-2, and the air chamber 20-3 is provided with an air port communicating with the outside world; the size of the first piston 23 is smaller than the second piston 24, that is, the first piston 23 does not fit the inner wall of the central pipe 20; the two ends of the two telescopic airbags 25 are respectively connected to the first piston 23 and the second piston 24 in the first vaporization chamber 20-1 and the second vaporization chamber 20-2, and the telescopic airbags 25 are communicated with the air chamber 20-3; the two telescopic tubes 26 are staggered, and the two ends of the two telescopic tubes 26 are respectively connected to the first piston 23 and the second piston 24 in the first vaporization chamber 20-1 and the second vaporization chamber 20-2. The telescopic tubes 26 have a certain friction force when stretched, such as Figure 5As shown, a micro-touch switch 261 is provided at the root of the telescopic tube 26, and the micro-touch switch 261 and the control panel 12 jointly control the oil pump 4 to be turned off; the two springs 27 are respectively wrapped around the two telescopic tubes 26, and the two springs 27 are arranged in opposite directions, and the two ends of the spring 27 are respectively connected to the assembly plate 201 and the first piston 23; the steam blocking plate 28 is slidably provided with the top surface of the central pipe 20, and the steam blocking plate 28 controls the two exhaust port switches. The blocking plate 28 is located at the two sections of the first vaporization chamber 20-1 and the second vaporization chamber 20-2, and a push plate 281 is respectively provided. The two push plates 281 are located at the first vaporization chamber 20-1 and the second vaporization chamber 20-2. 0-1, at the root of the opposite end of the second vaporization chamber 20-2; the two liquid wax sealing plates 29 are respectively arranged in the central pipe 20 through the slide rail 291, and a tension spring is arranged in the slide rail 291. The two liquid wax sealing plates 29 respectively control the two discharge feed port switches. The two liquid wax sealing plates 29 are arranged in opposite directions. The slide rail 291 connected to the wax sealing plate 29 in the second vaporization chamber 20-2 passes through the air cavity 20-3 and extends into the first vaporization chamber 20-1. A push plate 292 is provided on the slide rail 291. The push plate 292 is located in the middle of the first vaporization chamber 20-1, and the push plate 292 has a certain elasticity; as Figure 6 As shown, the central pipe 20 is connected to two clips 291 via a spring piece 2931. The two clips 291 are respectively arranged opposite to the first vaporization chamber 20-1 and the second vaporization chamber 20-2, and the ends of the clips 291 are sloped. The outer sleeve 22 wraps the central pipe 20, and the heating element 21 is located between the outer sleeve 22 and the central pipe 20. The two exhaust ports are respectively connected to the steam pipe 2-1. After the two steam pipes 2-1 are connected, they are connected to the lower end of the nozzle pipe 3. The outer sleeve 22 is connected to the material pipe 2-2, and the material pipe 2-2 is connected to the oil pump 4. The outer sleeve 22 is provided with a pre-storage cavity 221, a third piston 222 is provided in the pre-storage cavity 221, and the third piston 222 is connected to a second spring; like Figure 7-8 As shown, a groove 241 and a protrusion 242 are provided on one side wall of the second piston 24. One end of the clip 291 engages in the groove 241 to position the second piston 24. The protrusion 242 engages in the slide rail 291 to prevent liquid paraffin from entering the air cavity 20-3 along the slide rail 291. The grooves 241 and protrusions 242 of the two second pistons 24 are arranged in opposite directions. When the user is not in use, the two feed ports are blocked, and the first vaporization chamber 20-1 or the second vaporization chamber 20-2 is filled with liquid paraffin. Figure 3As shown, the first vaporization chamber 20-1 is filled with liquid paraffin, and the first piston 23 is compressed by the liquid paraffin to approach the air chamber 20-3. At this time, the internal space of the first vaporization chamber 20-1 is larger than that of the second vaporization chamber, wherein the exhaust port of the first vaporization chamber 20-1 is open; like Figure 9 As shown, a nozzle 30 is provided on the vertical wall surface at the upper end of the nozzle tube 3, and a guide tube 31 is wrapped around the nozzle 30. The guide tube 31 allows the gas and liquid wax to flow upward. A solenoid valve 32 is provided at the lower end of the nozzle tube 3, and the iron core 33 of the solenoid valve 32 extends into the nozzle tube 3. The valve block 34 is slidably set on the iron core 33. The valve block 34 fits the inside of the nozzle tube 3. A magnet layer is provided at the center of the bottom surface of the valve block 34. The upper end of the iron core 33 limits the valve block 34. Initially, the valve block 34 is located below the nozzle 30 and is adsorbed with the nozzle tube 3 to seal the nozzle 30, wherein the magnetic force of the magnet layer on the bottom surface of the valve block 34 is greater than the stress of the spring 27.

[0024] Working principle of the present invention: When the user uses the device, the heating element 21 is activated through the control panel 12. The heating element 21 heats the liquid paraffin in the first vaporization chamber 20-1. The liquid paraffin vaporizes and expands, and the pressure in the first vaporization chamber 20-1 increases. The vaporized paraffin enters the nozzle pipe 3 along the steam transmission pipe 2-1. Figure 10 As shown in A, the vaporized paraffin gradually pushes the valve block 34 upwards, and after a certain period of time, the blower 6, nozzle pipe 3, and oil pump 4 are delayed to open, and the solenoid valve 32 controls the iron core 33 to move upwards, as shown in FIG. Figure 10 As shown in B, the vaporized paraffin pushes up the valve block 34 and moves it above the nozzle 30, and the vaporized paraffin is sprayed out along the nozzle 30 and mixed with the air; like Figure 11 As shown, the first vaporization chamber 20-1 is exhausted, that is, the space increases. When the spring 27 pushes the first piston 23 to move to the middle of the first vaporization chamber 20-1, the first piston 23 pushes the push plate 292, thereby pulling the liquid wax sealing plate 29 in the second vaporization chamber 20-2. The feed port of the second vaporization chamber 20-2 is opened, and the liquid paraffin enters the second vaporization chamber 20-2 for heating and vaporization. The liquid paraffin pushes the first piston 23 in the second vaporization chamber 20-2 to move. At this time, the two first pistons 23 move in the same direction. Since the diameter of the central pipe 20 is larger than that of the steam transmission pipe 2-1, a certain damping is formed in the first vaporization chamber 20-1 during exhaust, so that the two first pistons 23 move at different speeds. When the first piston 23 in the second vaporization chamber 20-2 moves to the maximum distance, it squeezes the slope of the buckle 293, and the buckle 293 separates from the second piston 24 in the second vaporization chamber 20-2. The first piston 23 in the first vaporization chamber 20-1 continues to move. like Figure 12-13As shown, due to a certain friction force when the telescopic tube 26 is stretched, the first piston 23 in the first vaporization chamber 20-1 pulls the second piston 24 in the second vaporization chamber 20-2 to move in the same direction, so as to actively expand the internal space of the second vaporization chamber 20-2, which is beneficial to the vaporization of the liquid paraffin in the second vaporization chamber 20-2. During the continuous movement of the first piston 23 in the first vaporization chamber 20-1, the push plate 292 is bent and separated from it, and the stretching spring is reset, and the liquid wax sealing plate 29 is pushed back through the slide rail 291 to re-block the feed port of the second vaporization chamber 20-2. When the first piston 23 in the first vaporization chamber 20-1 moves to the root of the cavity, the first piston 23 pushes the push plate 1 281, gradually blocking the exhaust port of the first vaporization chamber 20-1 and gradually opening the exhaust port of the second vaporization chamber 20-2. The two exhaust ports are exhausted synchronously. Due to the gradual opening and blocking of the two exhaust ports, the vaporized stone entering the nozzle tube 3 is allowed to pass. The amount of wax is kept within a certain threshold to prevent the flame from suddenly increasing and to prevent the flame from suddenly decreasing due to the inability to continuously discharge steam. Since the two feed ports are blocked, the liquid paraffin compresses the third piston 22 and enters the pre-storage cavity 221, and the heating element 21 preheats the liquid paraffin. When the first piston 23 in the second vaporization cavity 20-2 moves to the middle of the second vaporization cavity 20-2, the above-mentioned action is repeated, that is, the feed port of the first vaporization cavity 20-1 is opened, and the first piston 23 in the first vaporization cavity 20-1 pushes the second piston 24 in the second vaporization cavity 20-2 to move and return to the initial position. Liquid paraffin is alternately injected into the first vaporization cavity 20-1 and the second vaporization cavity 20-2 to increase the vaporization time of the liquid paraffin and improve the vaporization efficiency of the liquid paraffin. When the two feed ports are blocked, the liquid paraffin enters the pre-storage cavity 221 to preheat the liquid paraffin, further improving the vaporization efficiency of the liquid paraffin. When the user stops using, the blower 6 and the nozzle tube 3 are turned off through the control panel 12, and the heating element 21 is delayed for a certain time to turn off to prevent the user from using it again in a short time and failing to heat the liquid paraffin in time. During feeding, the first piston 23 compresses the telescopic tube 26, and the first piston 23 and the second piston 24 return to the initial position. The second piston 24 re-engages with the buckle 293. When the telescopic tube 26 is compressed to the extreme, the micro-touch quick close 261 is triggered, and the oil pump 4 stops working, leaving liquid paraffin in the first vaporization chamber 20-1 or the second vaporization chamber 20-2. This saves the time for transmitting the liquid paraffin to the central pipe 20 when the user uses it next time, and can quickly vaporize the liquid paraffin.

Claims

1. A liquid paraffin fuel stove for a kitchen, characterized in that: include: A heating tube (2) for vaporizing liquid paraffin, comprising: a central tube (20), a heating element (21), and an outer sleeve (22); a steam exhaust port and a feed port are respectively provided at both ends of the central tube (20); two second pistons (24) divide the central tube (20) into an air cavity (20-3), a first vaporization cavity (20-1), and a second vaporization cavity (20-2); liquid paraffin is alternately injected into the first vaporization cavity (20-1) and the second vaporization cavity (20-2); and the liquid paraffin is heated in the central tube (20). The interior thereof is vaporized; the first piston (23) is not in contact with the inner wall of the central pipe (20); the two first pistons (23) are respectively located in the first vaporization chamber (20-1) and the second vaporization chamber (20-2); the two telescopic air bags (25) are respectively connected to the first piston (23) and the second piston (24); the two ends of the two telescopic tubes (26) are respectively connected to the first piston (23) and the second piston (24) in the first vaporization chamber (20-1) and the second vaporization chamber (20-2); the two springs (27) are respectively surrounded by On the two telescopic tubes (26), one end of the spring (27) is fixed and the other end is connected to the first piston (23); the gas blocking plate (28) is slidably arranged on the central pipe (20), and when the two first pistons (23) move to the root of the central pipe (20), they push the gas blocking plate (28) to control the two exhaust ports to open or close synchronously; the two liquid wax blocking plates (29) are arranged in opposite directions, and the liquid wax blocking plates (29) are arranged in the central pipe (20) through a resettable slide rail (291), and the two slide rails (291) are arranged in the central pipe (20). The two ends are located in the first vaporization chamber (20-1) and the second vaporization chamber (20-2), and the opposite ends of the two slide rails (291) are respectively provided with elastic push plates (292); the opposite surfaces of the central pipe (20) are connected to the buckle (291) through the spring piece (2931); the central pipe (20) sequentially wraps the heating element (21) and the outer sleeve (22); the two exhaust ports are connected to the nozzle pipe (3) through the steam delivery pipe (2-1), and the outer sleeve (22) is connected to the oil pump (4) and the oil tank (5) through the material delivery pipe (2-2); The nozzle tube (3) is provided with a nozzle (30), and the nozzle (30) is wrapped with a guide tube (31). The nozzle tube (3) is provided with a solenoid valve (32), and the iron core (33) of the solenoid valve (32) extends into the nozzle tube (3). The valve block (34) is slidably arranged on the iron core (33). The center of the bottom surface of the valve block (34) has a certain magnetism. The upper end of the iron core (33) limits the valve block (34), wherein the magnetic force of the valve block (34) is greater than the stress of the spring (27).

2. The liquid paraffin fuel stove for kitchen use according to claim 1, characterized in that: A pre-storage cavity (221) is provided on the outer sleeve (22), a third piston (222) is provided in the pre-storage cavity (221), and the third piston (222) is connected to a second spring.

3. The liquid paraffin fuel stove for kitchen use according to claim 1, characterized in that: The oil pump (4), the heating pipe (2), the blower (6), and the nozzle pipe (3) are turned on through the control panel (12), and the power of the blower (6) is controlled to adjust the flame size. The blower (6) and the nozzle pipe (3) are turned off through the control panel (12), and the heating element (21) is turned off after a certain delay.

4. The liquid paraffin fuel stove for kitchen use according to claim 1 is characterized in that: A micro-touch switch (261) is provided at the root of the telescopic tube (26). The micro-touch switch (261) and the control panel (12) jointly control the oil pump (4) to be turned off. When the telescopic tube (26) is compressed to the extreme, the micro-touch quick-close (261) is triggered, and the oil pump (4) stops working, allowing liquid paraffin to remain in the first vaporization chamber (20-1) or the second vaporization chamber (20-2).

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