Portable gas water heater

Abstract

The present invention relates to the technical field of gas water heaters, and provides a portable gas water heater, comprising a housing, a gas supply component, a gas valve, a burner, a heat exchanger, a control system, a water supply component and a gas cylinder heating device, the gas valve, the burner, the heat exchanger, the control system and the gas cylinder heating device being arranged in the housing. The gas supply component supplies compressed gas from a gas cylinder to the gas valve and then conveys same to the burner; the burner combusts the gas supplied from the gas cylinder; the water supply component supplies water to the heat exchanger, such that the heat exchanger heats the water supplied by the water supply component; the gas cylinder heating device recovers waste gas generated by the burner and conveys same to the position of the gas cylinder, so as to heat the gas cylinder, the position of the gas cylinder being arranged at a gas outlet of the gas cylinder heating device. In the present invention, by means of the gas cylinder heating device, liquid in the liquefied gas cylinder will not freeze, thereby ensuring effective output of the gas cylinder, and improving the use experience and safety of the gas water heater.

Description

Portable gas water heater TECHNICAL FIELD

[0001] The present application relates to the technical field of gas water heaters, and in particular to a portable gas water heater. BACKGROUND

[0002] At present, more and more people like outdoor camping activities, and many people hope to produce hot water to wash hands, take a bath, etc. in cold weather. In view of this requirement, a portable outdoor gas water heater is designed.

[0003] As disclosed in Chinese patent CN110332696B, an outdoor gas water heater adopts a new structure, which can ensure that flue gas can flow, avoid flue gas accumulation, avoid the flue gas concentration in the water heater exceeding the standard, and at the same time, fresh air from the outside can flow into the installation cavity, so that the fuel can be fully burned, and the generation of harmful substances is reduced. However, the waste gas generated in the combustion process cannot be reused, resulting in waste of waste gas.

[0004] Generally, the existing natural exhaust structure is used, and the whole machine is small power type to meet the use requirement. These models are generally low-heat load machines. When such machines are applied to actual use in low-temperature weather, the water heater cannot heat to the required temperature point. During the operation of the water heater, the gas is rapidly output, causing the bottom of the gas cylinder to freeze, which reduces the output gas by half, resulting in poor heating effect of the water heater. Therefore, a small-volume and high-power portable gas water heater needs to be designed.

[0005] However, there are still some known problems in the existing technology: for example, the whole machine has low hot water production rate, low thermal efficiency, and the gas cylinder freezes during operation, etc. In a low-temperature environment, the physical properties of gas (such as propane or butane) increase the condensation risk due to the reduced gas temperature in the gas cylinder. When the temperature of the gas is reduced below its dew point, the gas will change from gas to liquid or solid, which will significantly reduce the amount of gas available in the cylinder, thereby affecting the continuity and stability of the gas supply, which is not conducive to use in outdoor or low-temperature environments.

[0006] In order to solve the problems of inconvenience in portability, low gas efficiency, inability to fully utilize gas waste, lack of heat preservation measures, lack of external heating, etc. in the field, the present application is made. SUMMARY

[0007] The purpose of the present application is to overcome the shortcomings of the prior art. The present application adopts the following technical solutions:

[0008] A portable gas water heater, comprising a housing, a gas supply component, a gas valve, a burner, a heat exchanger, a control system, a water supply component and a gas cylinder warming device, the gas valve, the burner, the heat exchanger, the control system and the gas cylinder warming device being arranged in the housing;

[0009] The gas supply component supplies compressed gas in the gas cylinder to the gas valve and then to the burner, the burner burns the gas supplied by the gas cylinder, the water supply component supplies water to the heat exchanger, the water supplied by the water supply component is heated by the heat exchanger, and the gas cylinder warming device recovers and transmits the exhaust gas generated by the burner to the position where the gas cylinder is placed to heat the gas cylinder.

[0010] The position where the gas cylinder is placed is arranged at the air outlet of the gas cylinder warming device.

[0011] Optionally, the gas cylinder warming device comprises a fume hood, a fan assembly, an exhaust duct, an air outlet grille and a condensation exchanger, the fume hood is arranged above the heat exchanger and collects the exhaust gas generated after the burner is burned, one end of the exhaust duct is connected with the fume hood to form an exhaust gas recovery passage, the other end of the exhaust duct is connected with the air outlet grille, the fan assembly is arranged on the exhaust gas recovery passage and discharges the exhaust gas generated in the fume hood through the exhaust gas recovery passage, and the condensation exchanger is arranged in the exhaust duct and performs primary heating on the water supplied to the heat exchanger.

[0012] The condensation exchanger is provided with a water inlet end and a water outlet end.

[0013] Optionally, the gas supply component comprises a gas supply pipeline, the gas valve is arranged at one end of the gas supply pipeline, the other end of the gas supply pipeline is connected with the gas valve to form a gas adjusting portion, the gas valve adjusts the amount of gas supplied by the gas cylinder, and the gas adjusting portion is connected with the burner and supplies the gas supplied by the gas cylinder to the burner.

[0014] The gas valve is detachably connected with the gas cylinder and connected with the gas supply pipeline to form a supply channel.

[0015] Optionally, the water supply member comprises a water outlet pipe, a water inlet connector, a water outlet connector, a water inlet joint, a water outlet joint, and a condensation exchange pipe, one end of the water inlet connector is connected with one end of the water inlet joint, the other end of the water inlet joint is connected with one end of the condensation exchange pipe to form a water inlet part, the other end of the condensation exchange pipe is connected with a water inlet end of a condensation exchanger, the water outlet connector is connected with one end of the water outlet pipe, the other end of the water outlet pipe is connected with the water outlet joint, the water outlet end of the condensation exchanger is connected with one end of a heat exchange pipe of the heat exchanger, the other end of the heat exchange pipe is connected with the water outlet joint;

[0016] Wherein, the water inlet connector and the water outlet connector are arranged on two sides of the shell.

[0017] Optionally, the heat exchanger comprises a heat exchange cavity, a heat exchange sheet, and a heat exchange pipe, the heat exchange sheet is arranged in the heat exchange cavity to form a heat exchange part, the heat exchange part is arranged above the burner and receives heat generated by the heat exchanger, one end of the heat exchange pipe is connected with the water outlet end of the condensation exchanger, the other end of the heat exchange pipe is connected with the water outlet joint.

[0018] Wherein, the middle section pipe of the heat exchange pipe is spirally attached to the outer wall of the heat exchange cavity from top to bottom, and penetrates and interlaces in the heat exchange part.

[0019] Optionally, the burner comprises a combustion chamber, a nozzle, a gas distributor, an ignition needle, an induction needle, and an air inlet, the combustion chamber is used for combustion of the gas supplied by the gas supply member, the nozzle is used for spraying the gas in the combustion chamber, the gas distributor is used for distributing the gas supplied by the supply member and transmitting the gas to the nozzle, the ignition needle is arranged in the combustion chamber and ignites the gas entering the combustion chamber, and the air inlet is arranged on the bottom wall and the side wall of the combustion chamber and sends air into the combustion chamber.

[0020] Optionally, the portable gas water heater further comprises an anti-toppling switch, the anti-toppling switch is arranged in the shell and is used for reminding the posture of the shell.

[0021] Optionally, the portable gas water heater further comprises a temperature controller, the temperature controller is arranged on the pipeline of the heat exchange pipe.

[0022] Optionally, the portable gas water heater further comprises a temperature sensor and a water flow sensor, the temperature sensor is arranged in the heat exchange pipe, and the water flow sensor is arranged in the heat exchange pipe.

[0023] Optionally, the gas water heater further comprises a power supply, which is prearranged inside the shell and supplies power to the whole device.

[0024] The present application has the following beneficial effects:

[0025] 1. The gas bottle thermalization device prevents the liquefied liquid in the gas bottle from freezing, ensures better effective output of the gas bottle, and improves the use experience and safety of the portable gas water heater.

[0026] 2. The cooperation among the burner, heat exchanger, condensation exchanger and gas bottle thermalization device enables the exhaust gas in the combustion process to be reused, improves the energy utilization efficiency, protects the gas bottle combustion efficiency, and ensures that the whole device has the advantages of high gas supply efficiency, good hot water rate and convenient portability.

[0027] 3. The power supply supplies the required power to the whole device to maintain the normal operation of the whole device, so that the whole device has the advantages of wide outdoor use scenarios, small size and convenient portability. BRIEF DESCRIPTION OF DRAWINGS

[0028] The present application can be further understood from the following description in conjunction with the accompanying drawings. The components in the drawings are not necessarily drawn to scale, but emphasis is placed on showing the principles of the embodiments. In different views, the same reference numerals designate the same parts.

[0029] Fig. 1 is a structural schematic view of the portable gas water heater of the present application.

[0030] Fig. 2 is a structural schematic view of the water outlet connecting nozzle of the present application.

[0031] Fig. 3 is a structural schematic view of the internal structure of the portable gas water heater of the present application.

[0032] Fig. 4 is a structural schematic view of the heat exchanger and water supply member of the present application.

[0033] Fig. 5 is a detailed schematic view of the heat exchanger of the present application.

[0034] Fig. 6 is a side view schematic view of the heat exchanger and water supply member of the present application.

[0035] Fig. 7 is a structural schematic view of the gas bottle thermalization device of the present application.

[0036] Fig. 8 is a front view schematic view of the gas supply member, burner and power supply of the present application.

[0037] Fig. 9 is a side view schematic view of the gas supply member, burner and power supply of the present application.

[0038] Fig. 10 is an isometric structural schematic view of the gas supply member, burner and power supply of the present application.

[0039] Fig. 11 is a schematic diagram of the application of the portable gas water heater with gas cylinder.

[0040] Fig. 12 is a schematic diagram of the front view of the portable gas water heater with gas cylinder.

[0041] Fig. 13 is a schematic diagram of the front view of another embodiment of the application.

[0042] Fig. 14 is a schematic diagram of the structure of the portable gas water heater with gas cylinder and the hot gas guiding member.

[0043] Fig. 15 is a schematic diagram of the structure of the air exhaust duct and the condensing exchanger and the condensing exchange tube.

[0044] Fig. 16 is a schematic diagram of the application of the hot gas guiding member to blow exhaust gas to the gas cylinder.

[0045] Legend: 1, housing; 2, control panel; 3, air inlet through hole; 4, foot pad; 5, storage groove; 6, water inlet connector; 7, water outlet connector; 8, water flow sensor; 9, anti-toppling switch; 10, heat exchange tube; 11, power supply; 12, first temperature sensor; 13, water inlet joint; 14, water outlet joint; 15, heat exchange cavity; 16, gas supply pipeline; 17, gas distributor; 18, temperature controller; 19, heat exchange part; 20, fan assembly; 21, fume collecting hood; 22, air outlet grille; 23, air exhaust duct; 24, nozzle; 25, combustion chamber; 26, air inlet; 27, induction needle; 28, ignition needle; 29, gas cylinder placement area; 30, gas cylinder; 31, gas valve; 32, first guiding protrusion; 33, second guiding protrusion; 34, second temperature sensor; 35, condensing exchanger; 36, water inlet end; 37, water outlet end; 38, condensing exchange tube. DETAILED DESCRIPTION

[0046] The following is an embodiment of the application by specific examples, and those skilled in the art can understand the advantages and effects of the application from the disclosure. The application can be implemented or applied by other different embodiments, and the details in the specification can be modified and changed based on different views and applications without departing from the spirit of the application. In addition, the drawings of the application are only simple schematic illustrations, not the actual size, and the prior declaration is made. The following embodiments will further illustrate the related technical content of the application, but the disclosed content is not intended to limit the protection scope of the application.

[0047] According to the portable gas water heater shown in FIG. 1, FIG. 2, FIG. 3, FIG. 4, FIG. 5, FIG. 6, FIG. 7, FIG. 8, FIG. 9, FIG. 10, FIG. 11, FIG. 12, FIG. 13, FIG. 14, FIG. 15 and FIG. 16, the portable gas water heater comprises a shell 1, and further comprises a gas supply member, a gas valve, a burner, a heat exchanger, a control system, a water supply member and a cylinder warming device, wherein the gas valve, the burner, the heat exchanger, the control system, the fan assembly 20 and the cylinder warming device are arranged in the shell 1.

[0048] The gas supply member supplies compressed gas in the cylinder 30 to the gas valve and then to the burner, the burner burns the gas supplied by the cylinder 30, the water supply member supplies water to the heat exchanger, the heat exchanger is arranged above the burner and heats the water supplied by the water supply member through the heat exchanger, and the cylinder warming device recovers and transmits the exhaust gas generated by the burner to the position where the cylinder 30 is placed to heat the cylinder.

[0049] The position where the cylinder 30 is placed is arranged at the air outlet of the cylinder warming device.

[0050] Specifically, the cylinder warming device collects the exhaust gas generated after the heat exchanger is heated by the burner and guides the exhaust gas to the cylinder.

[0051] The cylinder warming device is opposite to the position where the cylinder is placed, and the recovered exhaust gas blows to the cylinder.

[0052] In addition, in the embodiment, the cylinder 30 preferably adopts a thickened cylinder 30 body to ensure that accidents caused by uncertain factors outdoors do not occur and to improve safety.

[0053] Optionally, the cylinder warming device comprises a fume hood 21, a fan assembly 20, an exhaust duct 23, an air outlet grille 22 and a condensation exchanger 35, the fume hood 21 is arranged above the heat exchanger and collects the exhaust gas generated after the burner is burned, one end of the exhaust duct 23 is connected with the fume hood 21 to form an exhaust gas recovery passage, the other end of the exhaust duct 23 is connected with the air outlet grille 22, the fan assembly 20 is arranged on the exhaust gas recovery passage and discharges the exhaust gas generated in the fume hood 21 through the exhaust gas recovery passage, and the condensation exchanger 35 is arranged in the exhaust duct 23 and initially heats the water supplied to the heat exchanger.

[0054] In the embodiment, the supplied water is primarily heated by the condensing exchanger, the heat of the exhaust gas is effectively utilized, the heating efficiency of the water is improved, and the entire device has the advantages of good heating effect, rapid hot water supply, and good hot water use comfort.

[0055] The exhaust gas in the exhaust gas recovery passage is cooled to 45°C through heat conduction of the condensing exchanger 35, the exhaust gas generated by the entire device is discharged through the air outlet grid 22, and the exhaust gas is used twice and the cylinder 30 is heated. The effect is also ensured that the entire device will not have the problem of local icing during use when liquefied.

[0056] In the embodiment, the gas cylinder 30 is heated by the gas cylinder heating device, so that the liquid in the liquefied gas cylinder 30 will not freeze, and the gas cylinder 30 is better and more effectively output, and the use experience and safety of the portable gas water heater are improved.

[0057] As shown in FIG. 11, the air outlet is arranged opposite to the air outlet grid 22, so that the hot air blown by the air outlet grid 22 can directly act on the gas cylinder 30.

[0058] Optionally, the gas supply member includes a gas supply pipeline 16, the gas valve 31 is arranged at one end of the supply pipeline, the other end of the gas supply pipeline 16 is connected with the gas valve to form a gas adjusting portion, the gas valve adjusts the amount of gas supplied by the gas cylinder 30, the gas adjusting portion is connected with the burner, and the gas supplied by the gas cylinder 30 is supplied to the burner.

[0059] The gas valve 31 is detachably connected with the gas cylinder 30 and connected with the gas supply pipeline 16 to form a supply channel.

[0060] In the embodiment, the gas cylinder 30 needs to be used in cooperation with the gas valve 31, that is, the gas valve 31 is connected with the gas outlet of the gas cylinder 30 to form a gas supply assembly, and the gas supply assembly is connected with the supply pipeline.

[0061] In the embodiment, one end of the supply pipeline extends out of the shell 1 to facilitate connection of the gas supply assembly.

[0062] In addition, the gas supply member further includes a gas cylinder 30 placement area 29, and the gas cylinder 30 placement area 29 is arranged at the air outlet of the gas cylinder heating device.

[0063] Optionally, the heat exchanger comprises a heat exchange cavity 15, heat exchange fins, heat exchange pipes 10, the heat exchange fins are arranged in the heat exchange cavity 15 to form a heat exchange part 19, the heat exchange part 19 is configured to be arranged above the burner and receive heat generated by the combustion of the heat exchanger, one end of the heat exchange pipe 10 is connected with a water outlet end of a condensation exchanger 35, the other end of the heat exchange pipe 10 is connected with the water outlet joint 14;

[0064] In the embodiment, the water inlet joint 13 and the water outlet joint 14 are arranged on both sides of the heat exchange cavity 15, and in other embodiments, they can also be arranged at other positions of the heat exchange cavity 15, so that in the embodiment, they will not be described one by one.

[0065] The middle section of the heat exchange pipe 10 is spirally attached to the outer wall of the heat exchange cavity 15 from top to bottom, and penetrates and interlaces in the heat exchange part 19.

[0066] In the embodiment, the heat exchanger is arranged above the burner and receives heat generated by the combustion of the burner on the gas (supplied by the gas cylinder 30), and the heat is conducted through the heat exchange pipe 10, and the water supplied by the water supply pipe into the heat exchange pipe 10 is heated, so as to heat the required water.

[0067] Optionally, the water supply member comprises a water outlet pipe, a water inlet connector 6, a water outlet connector 7, a water inlet joint 13, a water outlet joint 14, and a condensation exchange pipe 38, one end of the water inlet connector 6 is connected with one end of the water inlet joint, the other end of the water inlet joint is connected with one end of the condensation exchange pipe 38 to form a water inlet part, the other end of the condensation exchange pipe 38 is connected with a water inlet end 36 of the condensation exchanger 35, one end of the water outlet connector 7 is connected with one end of the water outlet pipe, the other end of the water outlet pipe is connected with the water outlet joint 14, the water outlet end 37 of the condensation exchanger is connected with one end of the heat exchange pipe of the heat exchanger, and the other end of the heat exchange pipe is connected with the water outlet joint.

[0068] After the water inlet connector 6 and the water outlet connector 7 penetrate the shell 1, they are arranged on both sides of the shell 1.

[0069] In addition, through the heat exchange effect of the condensation exchanger 35, the water entering the heat exchange pipe through the water inlet connector can be preliminarily heated, and the waste gas temperature in the waste gas recovery passage is fully utilized to improve the utilization rate of the waste gas and ensure the heating efficiency of the hot water.

[0070] When in the outdoor scene, the user can connect the water outlet of the kettle into the water connection mouth 6 to form a water supply path, and after heating by the gas water heater, the hot water flows out from the water outlet connection mouth 7, at this time, the user can easily take the hot water.

[0071] Optionally, the shell 1 is provided with air inlet through holes 3 on both sides, the air inlet through holes 3 penetrate through the shell 1 and communicate with the external space.

[0072] Optionally, the burner comprises a combustion chamber 25, a nozzle 24, a gas distributor 17, an ignition needle 28, a sensing needle 27, and an air inlet 26, the combustion chamber 25 is used for combustion of the gas supplied by the gas supply member, the nozzle 24 is used for spraying the gas in the combustion chamber 25, the gas distributor 17 is used for distributing the gas supplied by the supply member and transmitting it into the nozzle 24, the ignition needle 28 is arranged in the combustion chamber 25 and ignites the gas entering the combustion chamber 25, and the air inlet 26 is arranged on the bottom wall and the side of the combustion chamber 25 and sends air into the combustion chamber 25.

[0073] The sensing needle 27 is used for sensing the combustion, when the combustion is extinguished, the sensing needle 27 senses the extinguishing signal, randomly transmits the signal to the processor, and interrupts the supply and distribution of the gas in the gas distributor 17 through the processor control, so as to ensure the safety of the whole device.

[0074] The supply pipeline of the supply member is connected to the gas distributor 17, and after the distribution of the gas by the gas distributor 17, the gas enters the nozzle 24 and is sent into the combustion chamber 25 through the nozzle 24.

[0075] As shown in FIGS. 8 and 9, the gas distributor 17 is connected with the nozzle 24, so as to realize the distribution and transmission of the gas.

[0076] In this embodiment, the gas enters the nozzle 24 through the gas distributor 17, and then burns in the combustion chamber 25 to transfer the heat energy to the heat exchanger.

[0077] After the gas enters the combustion chamber 25, the ignition needle 28 is triggered to start synchronously to ignite the gas.

[0078] In addition, in the process of combustion, the sensing needle 27 senses the combustion process, when the combustion process is interrupted or extinguished, the supply operation of the gas distributor 17 and the gas supply member is interrupted.

[0079] The sensing needle 27 is used for improving the safety protection of the whole device.

[0080] In the embodiment, when in the outdoor scene, the user can supply the water carried by the suction device (including the water pump or the electric pump and the like) to the condensing exchange pipe 38, so as to supply the water to the water inlet part and establish the water supply path, at this time, the user only needs to determine the required water amount, and then triggers the burner to ignite and heat the heat exchanger. Since the water supply member is connected to the heat exchanger, after the required water amount is selected, the water supply member supplies the water to the heat exchanger and heats the water through the heat exchanger, so as to obtain the hot water of the required water amount.

[0081] The suction device (not shown in the figure) is arranged on the condensing exchange pipe 38 and the water outlet pipeline, so as to improve the water supply efficiency. It should be noted that the suction speed of the suction device needs to be matched with the heating efficiency of the heat exchanger, so as to improve the temperature of the hot water supplied by the water outlet nozzle to the required temperature.

[0082] In the embodiment, the suction device includes but is not limited to the following listed devices: the electric pump, the water pump and the water supply pump and the like, which are well known to those skilled in the art, and thus will not be described one by one.

[0083] In the embodiment, the gas water heater further comprises a control panel 2, which comprises a power adjustment switch and a water amount adjustment switch. The power adjustment switch is used to control the combustion power, and the operator can adjust the combustion power according to the actual needs. The power adjustment switch is electrically connected with the segmented electromagnetic valve, so that the power adjustment switch can realize different distribution ratios, thereby realizing different combustion powers.

[0084] The water amount adjustment switch is used to adjust the required water amount, so as to realize the accurate control of the hot water amount. That is, the required water amount of the user can be selected or set through the water amount adjustment switch.

[0085] When the user selects and sets the water amount through the water amount adjustment button, the water pump can supply the water of the corresponding water amount to the heat exchanger for heating, and receive the hot water of the corresponding water amount from the water outlet connecting nozzle 7.

[0086] In the embodiment, the control panel 2 is arranged on the upper end surface of the shell 1.

[0087] Meanwhile, as shown in FIG. 2, the water amount adjustment switch and the power adjustment switch are both touch-controlled control switches.

[0088] In the embodiment, the control system comprises a central processor, a first temperature sensor 12, a second temperature sensor 34 and a water flow sensor 8, the first temperature sensor 12 and the second temperature sensor 34 are arranged in the water inlet passage and the water outlet passage of the heat exchange pipe respectively and monitor the water inlet temperature and the water outlet temperature in the heat exchange pipe 10, the water flow sensor 8 monitors the water flow amount of the heat exchange pipe 10, and the temperature sensor 34 and the water flow sensor 8 are connected with the controller through signal lines.

[0089] The central processor is connected with the first temperature sensor 12, the second temperature sensor 34, the water flow sensor 8, the temperature controller 18, the control panel 2, the gas distributor 17, the ignition needle 28, the induction needle 27, the gas proportional valve and the suction device respectively, and the central processor controls the first temperature sensor 12, the second temperature sensor 34, the water flow sensor 8, the temperature controller 18, the control panel 2, the gas distributor 17, the ignition needle 28, the induction needle 27, the gas proportional valve and the suction device to improve the accurate control of the whole device.

[0090] In the embodiment, after the water amount adjusting switch adjusts the set water amount, the water amount setting signal is transmitted to the central processor, and the central processor controls the gas distributor 17, the ignition needle 28, the induction needle 27, the gas proportional valve and the suction device, specifically, the suction device sucks the water corresponding to the set water amount into the heat exchange pipe 10 through the suction device, the water flow sensor 8 in the heat exchange pipe 10 detects the feedback signal of the water and transmits the feedback signal to the central processor, the central processor triggers the gas distributor 17 to distribute and supply the gas at the same time, so that the gas enters the combustion chamber 25, and the central processor controls the ignition needle 28 to ignite, so as to heat the heat exchanger and heat the water in the heat exchange pipe, when the first temperature sensor 12 (the temperature of the water inlet pipe) and the second temperature sensor 34 (the temperature of the water outlet pipe) feedback the water temperature reaching the set temperature (the required temperature), the water is supplied to the water outlet connector 7 and is received and used by the user.

[0091] When the induction needle 27 detects that the combustion process is stopped or interrupted during the combustion process, the induction signal of the induction needle 27 is transmitted to the central processor, the central processor controls the gas distributor 17 to interrupt the supply of the gas, so as to improve the use safety of the whole device.

[0092] In addition, in the embodiment, the central processor controls the temperature sensor 34, the water flow sensor 8, the temperature controller 18, the control panel 2, the gas distributor 17, the ignition needle 28, the induction needle 27, the gas proportional valve, and the suction device control, which are well known to those skilled in the art, and those skilled in the art can consult relevant technical manuals to learn the technology, so the embodiment will not be described one by one.

[0093] Optionally, the portable gas water heater further comprises an anti-toppling switch 9 arranged in the shell 1 and used for reminding the posture of the shell 1.

[0094] The anti-toppling switch 9 can improve the reminding ability of the entire gas water heater and improve the safety and comfort of the user during use.

[0095] The anti-toppling switch 9 is internally provided with a micro switch. When the entire device is in a tilted state, the micro switch feeds back a signal of the tilted state to the central processor, and the central processor controls a buzzer and other early warning devices to issue a warning to prompt the user that the device is currently in an unstable state and needs to be adjusted, thereby improving the safety of the entire device.

[0096] Meanwhile, the early warning device is arranged in the shell and connected with the central processor control.

[0097] The portable gas water heater further comprises a temperature controller 18 arranged on the pipeline of the heat exchange pipe 10, and the temperature controller 18 collects the temperature of the heat exchange pipe 10.

[0098] The temperature controller 18 is connected with the central processor control and controlled by the central processor.

[0099] Meanwhile, after the temperature controller 18 collects the temperature in the heat exchange pipe 10, the temperature signal is fed back to the central processor, and the central processor determines whether the gas ratio needs to be reduced or the combustion heating process needs to be interrupted, thereby improving the intelligent control ability of the entire system.

[0100] The temperature controller 18 can also prevent the heat exchange pipe 10 from being too hot, thereby ensuring the safe operation of the heat exchange pipe 10 and the entire device.

[0101] The gas water heater further comprises at least four foot pads 4 arranged at the lower end surface of the shell 1 and used for supporting the entire device.

[0102] Preferably, the foot pad 4 is made of rubber to improve the stable supporting ability of the entire device.

[0103] The gas water heater further comprises a power supply 11, which is prearranged inside the shell and supplies power to the whole device;

[0104] Preferably, the power supply 11 is a rechargeable battery.

[0105] The power supply 11 supplies the required power to the whole device to maintain the normal operation of the whole device, so that the whole device has the advantages of wide outdoor use scene, small size and convenient portability.

[0106] As shown in FIG. 1, a storage groove 5 is further arranged outside the shell, which is arranged outside the shell for users to place some commonly used tools. Preferably, the storage groove 5 is symmetrically arranged on both sides of the shell.

[0107] In another embodiment, the gas cylinder heating device further comprises a hot gas guiding member, which is arranged on one side of the air outlet of the gas cylinder 30 and connected with the edge of the air outlet grid 22.

[0108] Optionally, the hot gas guiding member comprises a first guiding protrusion 32 and a second guiding protrusion 33, which are symmetrically arranged on both sides of the air outlet grid 22 and guide the direction of the hot gas of the air duct 23.

[0109] Among them, the first guiding protrusion 32 and the second guiding protrusion 33 protrude towards the placement position of the gas cylinder 30 and guide the direction of the hot gas of the air duct 23 to the outer periphery of the gas cylinder 30.

[0110] In this embodiment, as shown in FIG. 16, the generated exhaust gas is guided by the hot gas guiding member, which increases the heating area of the exhaust gas blowing to the gas cylinder 30, improves the gas supply efficiency of the gas cylinder 30, and ensures that the whole device has the advantages of smooth, efficient and safe gas supply.

[0111] In this embodiment, the exhaust gas of the water heater is mainly used for secondary utilization, and the safe residual heat is discharged after passing through the gas cylinder heating device. The hot air will not freeze the liquid at the bottom of the gas cylinder 30. At the same time, the gas cylinder 30 can be better and effectively output during operation, the heating time of the water heater is shortened, the thermal efficiency of the whole machine is improved, the use time of the gas is prolonged, and the water heater has a good experience effect in the use process.

[0112] The above disclosed content is only the preferred feasible embodiment of the present application, and does not limit the protection scope of the present application, so that any equivalent technical changes made according to the content of the present application and the drawings are included in the protection scope of the present application, and the elements can be updated as the technology develops.

Claims

1. A portable gas water heater comprising a housing, characterised in that, The portable gas water heater further comprises a gas supply component, a gas valve, a burner, a heat exchanger, a control system, a water supply component, and a gas cylinder warming device, wherein the gas valve, the burner, the heat exchanger, the control system, and the gas cylinder warming device are arranged in the shell; The gas supply component supplies compressed gas in the gas cylinder to the gas valve and then to the burner, the burner burns the gas supplied by the gas cylinder, the water supply component supplies water to the heat exchanger, the water supplied by the water supply component is heated by the heat exchanger, and the gas cylinder warming device recovers and transmits the exhaust gas generated by the burner to the position where the gas cylinder is placed to heat the gas cylinder. The position where the gas cylinder is placed is arranged at the air outlet of the gas cylinder warming device.

2. The portable gas water heater of claim 1, wherein The gas cylinder warming device comprises a fume hood, a fan assembly, an exhaust duct, an air outlet grille, and a condensation exchanger, the fume hood is arranged above the heat exchanger and collects the exhaust gas generated after the burner is burned, one end of the exhaust duct is connected with the fume hood to form an exhaust gas recovery passage, the other end of the exhaust duct is connected with the air outlet grille, the fan assembly is arranged on the exhaust gas recovery passage and discharges the exhaust gas generated in the fume hood through the exhaust gas recovery passage, and the condensation exchanger is arranged in the exhaust duct and preliminarily heats the water supplied to the heat exchanger. The condensation exchanger is provided with a water inlet end and a water outlet end.

3. The portable gas water heater of claim 1, wherein The gas supply component comprises a gas supply pipeline, the gas valve is arranged at one end of the gas supply pipeline, the other end of the gas supply pipeline is connected with the gas valve to form a gas adjusting part, the gas valve adjusts the amount of gas supplied by the gas cylinder, the gas adjusting part is connected with the burner, and the gas supplied by the gas cylinder is supplied to the burner, The gas valve is detachably connected with the gas cylinder and connected with the gas supply pipeline to form a supply channel.

4. The portable gas water heater of claim 2, wherein, The water supply component comprises a water outlet pipeline, a water inlet connector, a water outlet connector, a water inlet joint, a water outlet joint, and a condensation exchange pipe, one end of the water inlet connector is connected with one end of the water inlet joint, the other end of the water inlet joint is connected with one end of the condensation exchange pipe to form a water inlet part, the other end of the condensation exchange pipe is connected with the water inlet end of the condensation exchanger, the water outlet connector is connected with one end of the water outlet pipeline, the other end of the water outlet pipeline is connected with the water outlet joint, the water outlet end of the condensation exchanger is connected with one end of a heat exchange pipe connected with the heat exchanger, and the other end of the heat exchange pipe is connected with the water outlet joint. After the water inlet connector and the water outlet connector penetrate the shell, they are arranged on the two sides of the shell.

5. The portable gas water heater of claim 4, wherein, The heat exchanger comprises a heat exchange cavity, heat exchange fins, and a heat exchange pipe, the heat exchange fins are arranged in the heat exchange cavity to form a heat exchange part, the heat exchanger is heated by the burner and receives the heat generated by the burner, one end of the heat exchange pipe is connected with the water outlet end of the condensation exchanger, and the other end of the heat exchange pipe is connected with the water outlet joint. The middle section of the heat exchange pipe is spirally attached to the outer wall of the heat exchange cavity from top to bottom, and penetrates and interlaces in the heat exchange part.

6. The portable gas water heater of claim 1, wherein The burner comprises a combustion chamber, a nozzle, a gas distributor, an ignition needle, a sensing needle, and an air inlet, the combustion chamber is used for combustion of the gas supplied by the gas supply member, the nozzle is used for spraying the gas in the combustion chamber, the gas distributor is used for distributing the gas supplied by the supply member and transmitting to the nozzle, the ignition needle is arranged in the combustion chamber and ignites the gas entering the combustion chamber, and the air inlet is arranged on the bottom wall and the side of the combustion chamber and sends air into the combustion chamber.

7. The portable gas water heater of claim 1, wherein The portable gas water heater further comprises an anti-toppling switch arranged in the shell and used for reminding the posture of the shell.

8. The portable gas water heater of claim 5, wherein, The portable gas water heater further comprises a temperature controller arranged on the pipeline of the heat exchange pipe.

9. A portable gas water heater as claimed in claim 4 or 5 wherein, The portable gas water heater further comprises a temperature sensor arranged in the heat exchange pipe and a water flow sensor arranged in the heat exchange pipe.

10. The portable gas water heater of claim 1, wherein, The gas water heater further comprises a power supply prearranged in the shell and used for supplying power to the whole device.

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