Gas heater capable of heating quickly

Abstract

The invention relates to the technical field of heaters, in particular to a fast-heating gas heater which comprises a main body, a gas conveying device is arranged in the main body, a combustion cylinder is arranged at the top of the main body, and a first Venturi tube and a second Venturi tube are arranged in the combustion cylinder. The gas inlet end of the first Venturi tube and the gas inlet end of the second Venturi tube are arranged at the bottom of the combustion cylinder and communicated with the gas conveying device, the gas outlet end of the first Venturi tube extends to the upper portion of the combustion cylinder, and the gas outlet end of the second Venturi tube extends to the middle of the combustion cylinder. Gas can enter the combustion cylinder through the first Venturi tube and the second Venturi tube, so that the upper portion and the middle portion of the combustion cylinder are rapidly filled with the gas, the efficiency of covering the interior of the combustion cylinder by the gas is improved, finally, uniform radiation combustion is achieved by igniting the gas, and the warmer is rapid in heating, good in warming effect and high in practicability. And better use experience can be provided for the user.

Description

Technical Field

[0001] The invention relates to the technical field of heaters, in particular to a fast-heating gas heater. Background Art

[0002] Heaters are mainly used for heating in well-ventilated indoor or outdoor areas, and are mostly used for courtyard parties and camping in the wild.

[0003] For example, the patent with publication number CN221923481 U discloses a double-layer combustion mesh burner, including a venturi tube, a cylindrical combustion tube, a top cover, a bottom cover, an inner combustion mesh and an outer combustion mesh, the cylindrical combustion tube includes a main annular protrusion and a secondary annular protrusion arranged at the upper and lower parts, the main annular protrusion and the secondary annular protrusion and the cylindrical combustion tube space between the secondary annular protrusion constitute a gas distribution cavity and is provided with an air outlet; a cylindrical air inlet interface is provided at the center of the bottom cover; the top cover and the bottom cover are respectively embedded in the upper and lower ends of the cylindrical combustion tube, the inner combustion mesh is sleeved on the cylindrical combustion tube and covers the gas distribution cavity, the outer combustion mesh and the inner combustion mesh are fitted and fixed, the cylindrical air inlet interface is inserted into the lower end of the venturi tube, there is a gap between the upper end of the venturi tube and the top cover, and the top cover allows the gas and air mixture to move downward.

[0004] The problem with the above technology is that when in use, the nozzle sprays gas into the venturi tube, the gas enters the cylindrical combustion tube through the upper end of the venturi tube, the gas passes through the gap between the upper end of the venturi tube and the top cover and moves downward, and then the gas is ignited by the ignition device. Since it takes a certain amount of time for the gas to fill the entire cylindrical combustion tube, it also takes a certain amount of time to evenly heat the entire cylindrical combustion tube. Therefore, it takes a certain amount of time for the existing heater to reach the temperature expected by the user.

[0005] Therefore, a fast-heating gas heater is proposed to solve the above technical problems. Summary of the invention

[0006] In order to solve the above technical problems, the purpose of the present invention is to provide a gas heater with fast heating, which can radiate heat evenly, heat quickly and have good heating effect, and can further enhance the user experience.

[0007] The technical solution adopted by the present invention to solve the problem is: a gas heater with fast heating, including a main body, a gas delivery device is arranged in the main body, a combustion tube is arranged on the top of the main body, a first venturi tube and a second venturi tube are arranged in the combustion tube, the air inlet ends of the first venturi tube and the second venturi tube are arranged at the bottom of the combustion tube and are connected to the gas delivery device, the air outlet end of the first venturi tube extends to the upper part of the combustion tube, and the air outlet end of the second venturi tube extends to the middle part of the combustion tube.

[0008] As a further improvement of the above technical solution, a bottom cover is fixedly arranged at the bottom of the combustion tube, the first venturi tube and the second venturi tube are fixedly arranged on the bottom cover, and the bottom cover is fixedly arranged on the top of the main body.

[0009] As a further improvement of the above technical solution, the combustion tube includes an upper tube and a lower tube, the lower tube is arranged on the top of the bottom cover, the upper tube is arranged on the top of the lower tube, the top cover of the upper tube is provided with a top cover, a baffle is provided between the upper tube and the lower tube, an upper combustion chamber is formed between the top cover, the upper tube and the baffle, and a lower combustion chamber is formed between the baffle, the lower tube and the bottom cover; an opening is provided on the baffle, the outlet end of the first venturi tube passes through the opening and is located in the upper combustion chamber, and the outlet end of the second venturi tube is located in the lower combustion chamber.

[0010] As a further improvement of the above technical solution, a diverter cover is provided at the bottom of the top cover, and a first diverter hole connected to the upper combustion chamber is provided on the diverter cover. A diverter ring is provided at the bottom of the baffle, and a second diverter hole connected to the lower combustion chamber is provided on the diverter ring.

[0011] As a further improvement of the above technical solution, a first step is provided on the bottom cover, the bottom of the lower tube is overlapped on the first step, a first flange is provided on the baffle, the first flange is overlapped on the top of the lower tube, a second step is provided on the baffle, the bottom of the upper tube is overlapped on the second step, a second flange is provided on the top cover, and the second flange is overlapped on the top of the upper tube.

[0012] As a further improvement of the above technical solution, the side ends of the upper tube and the lower tube are both provided with outwardly protruding support positions, and also include a combustion grid, which is sleeved on the upper tube and the lower tube, and the inner end of the combustion grid is fixedly connected to the support position.

[0013] As a further improvement of the above technical solution, the air delivery device includes an air inlet pipe and two nozzles, the air inlet pipe faces the bottom of the main body, and the two nozzles face the bottom of the first venturi tube and the bottom of the second venturi tube respectively.

[0014] As a further improvement of the above technical solution, it also includes a knob switch and an ignition device, wherein the ignition device is arranged on the outside of the combustion tube, and the knob switch is used to control the air intake of the ignition device and the air supply device.

[0015] As a further improvement of the above technical solution, the ignition device includes a thermocouple and an ignition needle, the gas delivery device includes a combustion head connected to the air intake pipe, and the combustion head is arranged between the thermocouple and the ignition needle.

[0016] As a further improvement of the above technical solution, the ignition device includes a micro switch and a cam rotatably connected to the knob switch, the micro switch is electrically connected to the ignition needle, the gas supply device includes a solenoid valve connected to the combustion head, the end of the solenoid valve is elastically connected to a valve stem, the upper and lower ends of the cam are respectively provided with a first abutment portion and a second abutment portion, a torsion spring is provided between the valve stem and the first abutment portion, and the second abutment portion is located next to the micro switch.

[0017] The beneficial effect of the present invention is that when in use, the gas delivery device delivers gas to the first venturi tube and the second venturi tube, and the gas can enter the combustion tube through the first venturi tube and the second venturi tube, so that the gas quickly fills the upper and middle parts of the combustion tube, thereby accelerating the efficiency of the gas covering the inside of the combustion tube, and finally achieving uniform radiation combustion by igniting the gas. The heater of the present application heats up quickly, has a good heating effect, and can provide users with a better user experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The present invention will be further explained below in conjunction with the accompanying drawings and specific implementation methods.

[0019] Figure 1 is a structural diagram of the heater of the present invention;

[0020] Figure 2 An exploded view of the heater of the present invention;

[0021] Figure 3 A top view of the heater of the present invention;

[0022] Figure 4 for Figure 3 A cross-sectional view of the AA portion;

[0023] Figure 5 for Figure 4 A partial enlarged view of part A;

[0024] Figure 6 for Figure 4 A partial enlarged view of part B;

[0025] Figure 7 for Figure 4 A partial enlarged view of part C;

[0026] Figure 8 It is a structural diagram of the gas delivery device and the ignition device of the present invention from a top view;

[0027] Fig. 9 This is a structural diagram of the gas delivery device and the ignition device of the present invention from a bottom-up perspective.

[0028] In the figure: 1-main body, 2-gas delivery device, 21-inlet pipe, 22-nozzle, 23-combustion head, 24-solenoid valve, 241-valve stem, 3-combustion tube, 31-bottom cover, 311-first step, 32-upper tube, 33-lower tube, 34-top cover, 341-diverter cover, 342-first diverter hole, 343-second flange, 35-baffle, 351-opening, 352-diverter ring, 353-first Two diversion holes, 354-first flange, 355-second step, 36-support position, 41-first venturi tube, 42-second venturi tube, 51-upper combustion chamber, 52-lower combustion chamber, 6-combustion grid, 7-knob switch, 8-ignition device, 81-thermocouple, 82-ignition needle, 83-micro switch, 84-cam, 841-first abutment portion, 842-second abutment portion, 85-torsion spring. DETAILED DESCRIPTION

[0029] This section will describe in detail the specific embodiments of the present invention. The preferred embodiments of the present invention are shown in the accompanying drawings. The purpose of the accompanying drawings is to supplement the description of the text part of the specification with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present invention, but it cannot be understood as a limitation on the scope of protection of the present invention.

[0030] In the description of the present invention, it should be understood that descriptions involving orientations, such as up, down, front, back, left, right, etc., and orientations or positional relationships indicated are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0031] In the description of the present invention, the meaning of "several" is one or more, the meaning of "more" is more than two, "greater than", "less than", "exceed" etc. are understood as not including the number itself, and "above", "below", "within" etc. are understood as including the number itself. If there is a description of the first and the second, it is only for the purpose of distinguishing the technical features, and it cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features. In the description of the present invention, unless otherwise clearly defined, the terms such as "set", "install", and "connect" should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meaning of the above terms in the present invention in combination with the specific content of the technical solution.

[0032] Reference Figures 1 to 9A fast-heating gas heater comprises a main body 1, a gas delivery device 2 is arranged in the main body 1, a combustion tube 3 is arranged on the top of the main body 1, a first venturi tube 41 and a second venturi tube 42 are arranged in the combustion tube 3, the air inlet ends of the first venturi tube 41 and the second venturi tube 42 are arranged at the bottom of the combustion tube 3 and communicated with the gas delivery device 2, the air outlet end of the first venturi tube 41 extends to the upper part of the combustion tube 3, and the air outlet end of the second venturi tube 42 extends to the middle part of the combustion tube 3;

[0033] The side end of the combustion tube 3 is evenly distributed with a number of combustion holes;

[0034] When in use, the gas delivery device 2 delivers gas to the first venturi tube 41 and the second venturi tube 42, and the gas can enter the combustion tube 3 through the first venturi tube 41 and the second venturi tube 42, so that the gas quickly fills the upper and middle parts of the combustion tube 3, thereby accelerating the efficiency of the gas covering the inside of the combustion tube 3, and finally achieving uniform radiant combustion by igniting the gas. The heater of the present application heats up quickly, has a good heating effect, and can provide users with a better user experience.

[0035] In a preferred embodiment, in order to facilitate the installation of the first venturi tube 41 and the second venturi tube 42, a bottom cover 31 is fixedly provided at the bottom of the combustion tube 3, the first venturi tube 41 and the second venturi tube 42 are fixedly provided on the bottom cover 31, and the bottom cover 31 is fixedly provided on the top of the main body 1.

[0036] In the preferred embodiment, the combustion tube 3 includes an upper tube 32 and a lower tube 33. The lower tube 33 is arranged on the top of the bottom cover 31, and the upper tube 32 is arranged on the top of the lower tube 33. The top cover of the upper tube 32 is provided with a top cover 34. A baffle 35 is provided between the upper tube 32 and the lower tube 33. An upper combustion chamber 51 is formed between the top cover 34, the upper tube 32 and the baffle 35. A lower combustion chamber 52 is formed between the baffle 35, the lower tube 33 and the bottom cover 31. An opening 351 is provided on the baffle 35. The outlet end of the first venturi tube 41 passes through the opening 351 and is located in the upper combustion chamber 51. The outlet end of the second venturi tube 42 is located in the lower combustion chamber 52.

[0037] The gas enters the upper combustion chamber 51 through the first venturi tube 41, and enters the lower combustion chamber 52 through the second venturi tube 42. By igniting the gas in the upper combustion chamber 51 and the lower combustion chamber 52, uniform radiation combustion is achieved, and the combustion tube 3 is quickly heated.

[0038] In a preferred embodiment, a flow divider cover 341 is provided at the bottom of the top cover 34, and a first flow divider hole 342 communicating with the upper combustion chamber 51 is provided on the flow divider cover 341; a flow divider ring 352 is provided at the bottom of the baffle plate 35, and a second flow divider hole 353 communicating with the lower combustion chamber 52 is provided on the flow divider ring 352;

[0039] The fuel gas can be quickly and evenly dispersed in the upper combustion chamber 51 and the lower combustion chamber 52 through the first diversion hole 342 and the second diversion hole 353 .

[0040] In a preferred embodiment, in order to facilitate the installation of the combustion tube 3, a first step 311 is provided on the bottom cover 31, the bottom of the lower tube 33 is overlapped on the first step 311, a first flange 354 is provided on the baffle 35, the first flange 354 is overlapped on the top of the lower tube 33, a second step 355 is provided on the baffle 35, the bottom of the upper tube 32 is overlapped on the second step 355, and a second flange 343 is provided on the top cover 34, and the second flange 343 is overlapped on the top of the upper tube 32.

[0041] In the preferred embodiment, the side ends of the upper tube 32 and the lower tube 33 are both provided with a support position 36 protruding outward, and also include a combustion grid 6, the combustion grid 6 is sleeved on the upper tube 32 and the lower tube 33, and the inner side end of the combustion grid 6 is fixedly connected to the support position 36;

[0042] The combustion grid 6 is welded to the support position 36, and the cross section of the support position 36 is arc-shaped, trapezoidal or triangular.

[0043] In a preferred embodiment, the gas delivery device 2 includes an air inlet pipe 21 and two nozzles 22, the air inlet pipe 21 faces the bottom of the main body 1, and the two nozzles 22 face the bottom of the first venturi tube 41 and the second venturi tube 42 respectively;

[0044] The gas can enter the first venturi tube 41 and the second venturi tube 42 respectively through the nozzle 22 .

[0045] In a preferred embodiment, a knob switch 7 and an ignition device 8 are also included. The ignition device 8 is arranged on the outside of the combustion tube 3, and the knob switch 7 is used to control the air intake of the ignition device 8 and the air supply device 2.

[0046] In a preferred embodiment, the ignition device 8 includes a thermocouple 81 and an ignition needle 82, and the gas delivery device 2 includes a combustion head 23 connected to the air inlet pipe 21, and the combustion head 23 is arranged between the thermocouple 81 and the ignition needle 82;

[0047] During ignition, the gas can enter the combustion head 23 through the air inlet pipe 21 , and ignite the combustion head 23 through the thermocouple 81 and the ignition needle 82 , thereby igniting the gas in the combustion tube 3 .

[0048] In a preferred embodiment, the ignition device 8 includes a micro switch 83 and a cam 84 rotatably connected to the knob switch 7, the micro switch 83 is electrically connected to the ignition needle 82, the gas delivery device 2 includes a solenoid valve 24 connected to the combustion head 23, the end of the solenoid valve 24 is elastically connected to a valve stem 241, the upper and lower ends of the cam 84 are respectively provided with a first abutment portion 841 and a second abutment portion 842, a torsion spring 85 is provided between the valve stem 241 and the first abutment portion 841, and the second abutment portion 842 is located beside the micro switch 83;

[0049] When in use, by rotating the knob switch 7, the cam 84 is driven to rotate, so that the first abutment portion 841 rotates and abuts against the valve stem 842, thereby opening the solenoid valve 24 and controlling the amount of gas passing through the combustion head 23. At the same time, the second abutment portion 842 rotates and abuts against the micro switch 83, thereby turning on the micro switch 83, thereby turning on the ignition needle 82 to ignite the combustion head 23.

[0050] In a preferred embodiment, a flameout protector is electrically connected between the solenoid valve 24 and the thermocouple 81. When the flame is suddenly extinguished, the electromotive force of the thermocouple 81 changes, causing the circuit to be disconnected, thereby prompting the flameout protector to control the solenoid valve 24 to pop open to cut off the gas supply.

[0051] The above are only preferred embodiments of the present invention, and are not intended to limit the patent scope of the present invention. All equivalent structural changes made using the contents of the present invention's specification and drawings under the inventive concept of the present invention, or directly or indirectly applied in other related technical fields, are included in the patent protection scope of the present invention.

Claims

1. A fast-heating gas heater, characterized in that: The invention comprises a main body (1), wherein a gas delivery device (2) is arranged in the main body (1), a combustion tube (3) is arranged on the top of the main body (1), a first venturi tube (41) and a second venturi tube (42) are arranged in the combustion tube (3), the air inlet ends of the first venturi tube (41) and the second venturi tube (42) are arranged at the bottom of the combustion tube (3) and are connected to the gas delivery device (2), the air outlet end of the first venturi tube (41) extends to the upper part of the combustion tube (3), and the air outlet end of the second venturi tube (42) extends to the middle part of the combustion tube (3).

2. A fast-heating gas heater as claimed in claim 1, characterized in that: A bottom cover (31) is fixedly arranged at the bottom of the combustion cylinder (3), the first venturi tube (41) and the second venturi tube (42) are fixedly arranged on the bottom cover (31), and the bottom cover (31) is fixedly arranged on the top of the main body (1).

3. A fast-heating gas heater as claimed in claim 2, characterized in that: The combustion tube (3) comprises an upper tube (32) and a lower tube (33); the lower tube (33) is arranged on the top of the bottom cover (31); the upper tube (32) is arranged on the top of the lower tube (33); the top cover of the upper tube (32) is provided with a top cover (34); a baffle (35) is provided between the upper tube (32) and the lower tube (33); an upper combustion chamber (51) is formed between the top cover (34), the upper tube (32) and the baffle (35); and a lower combustion chamber (52) is formed between the baffle (35), the lower tube (33) and the bottom cover (31); The baffle (35) is provided with an opening (351), the gas outlet end of the first venturi tube (41) passes through the opening (351) and is located in the upper combustion chamber (51), and the gas outlet end of the second venturi tube (42) is located in the lower combustion chamber (52).

4. A fast-heating gas heater as claimed in claim 3, characterized in that: A flow diversion cover (341) is provided at the bottom of the top cover (34), and a first flow diversion hole (342) communicating with the upper combustion chamber (51) is provided on the flow diversion cover (341); a flow diversion ring (352) is provided at the bottom of the baffle (35), and a second flow diversion hole (353) communicating with the lower combustion chamber (52) is provided on the flow diversion ring (352).

5. A fast-heating gas heater as claimed in claim 3, characterized in that: The bottom cover (31) is provided with a first step (311), the bottom of the lower tube (33) is overlapped on the first step (311), the baffle (35) is provided with a first flange (354), the first flange (354) is overlapped on the top of the lower tube (33), the baffle (35) is provided with a second step (355), the bottom of the upper tube (32) is overlapped on the second step (355), and the top cover (34) is provided with a second flange (343), the second flange (343) is overlapped on the top of the upper tube (32).

6. A fast-heating gas heater as claimed in claim 5, characterized in that: The side ends of the upper tube (32) and the lower tube (33) are both provided with a support position (36) protruding outward, and also include a combustion grid (6). The combustion grid (6) is sleeved on the upper tube (32) and the lower tube (33), and the inner side end of the combustion grid (6) is fixedly connected to the support position (36).

7. A fast-heating gas heater as claimed in claim 1, characterized in that: The air delivery device (2) comprises an air inlet pipe (21) and two nozzles (22), wherein the air inlet pipe (21) faces the bottom of the main body (1), and the two nozzles (22) face the bottom of the first venturi tube (41) and the bottom of the second venturi tube (42), respectively.

8. A fast-heating gas heater as claimed in claim 7, characterized in that: It also comprises a knob switch (7) and an ignition device (8), wherein the ignition device (8) is arranged outside the combustion tube (3), and the knob switch (7) is used to control the air intake of the ignition device (8) and the air delivery device (2).

9. A fast-heating gas heater as claimed in claim 8, characterized in that: The ignition device (8) comprises a thermocouple (81) and an ignition needle (82), and the gas delivery device (2) comprises a combustion head (23) connected to the air intake pipe (21), and the combustion head (23) is arranged between the thermocouple (81) and the ignition needle (82).

10. A fast-heating gas heater as claimed in claim 9, characterized in that: The ignition device (8) comprises a micro switch (83) and a cam (84) rotatably connected to the knob switch (7); the micro switch (83) is electrically connected to the ignition needle (82); the gas delivery device (2) comprises a solenoid valve (24) connected to the combustion head (23); the end of the solenoid valve (24) is elastically connected to a valve stem (241); the upper and lower ends of the cam (84) are respectively provided with a first abutment portion (841) and a second abutment portion (842); a torsion spring (85) is provided between the valve stem (241) and the first abutment portion (841); and the second abutment portion (842) is located beside the micro switch (83).

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