Portable gas water heater

Abstract

The utility model relates to the technical field of gas water heaters, and provides a portable gas water heater which comprises a shell, a gas supply component, a gas valve, a burner, a heat exchanger, a control system, a water supply component and a gas cylinder thermalization device, and the gas valve, the burner, the heat exchanger, the control system and the gas cylinder thermalization device are arranged in the shell. The gas supply component supplies compressed gas in the gas cylinder to the gas valve and then conveys the compressed gas into the burner, the burner burns the gas supplied by the gas cylinder, the water supply component supplies water into the heat exchanger, and the water supplied by the water supply component is heated through the heat exchanger. The gas cylinder thermalization device is used for recovering waste gas generated by the combustor and transmitting the waste gas to a gas cylinder placing position for heating the gas cylinder; wherein the gas cylinder is placed at an air outlet of the gas cylinder thermalization device. By means of the gas cylinder thermalization device, liquid in the liquefied gas cylinder cannot be frozen, it is guaranteed that the gas cylinder is effectively output, and the use experience and safety of the gas water heater are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of gas water heaters, in particular to a portable gas water heater. Background Art

[0002] At present, more and more people like outdoor camping activities. Many people hope to generate hot water for washing hands and taking a bath when the weather is cold. In response to this demand, a portable outdoor gas water heater is designed.

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

[0004] Generally, it is made of the existing natural exhaust structure. In order to meet the use requirements, the whole machine must be a small power model. These models are generally low heat load machines. 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 output quickly, causing the bottom of the gas tank to freeze, which reduces the output gas by half and leads to poor heating effect of the water heater. Therefore, it is necessary to design a small volume and high power portable gas water heater.

[0005] However, there are still some known problems in the existing technology: for example, the whole machine has a low hot water production rate, low thermal efficiency, and the gas tank freezes during operation. In a low-temperature environment, the physical properties of the fuel gas (such as propane or butane) make it easy to increase the risk of condensation in the gas cylinder due to the lower temperature. When the temperature of the gas drops 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 bottle, thereby affecting the continuity and stability of the gas supply, which is not conducive to use outdoors or in low-temperature environments.

[0006] The present invention is made to solve the common problems in the field such as inconvenient portability, low gas efficiency, inability to fully utilize gas waste gas, lack of insulation measures, lack of external heating, etc. Utility Model Content

[0007] The purpose of the utility model is to overcome the shortcomings of the prior art and adopt 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 heating device, wherein the gas valve, the burner, the heat exchanger, the control system, and the gas cylinder heating device are arranged in the housing;

[0009] The gas supply component supplies the compressed gas in the gas cylinder to the gas valve and then transports it 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. The gas cylinder heating device collects the exhaust gas generated after the burner heats the heat exchanger and guides the exhaust gas to the gas cylinder.

[0010] Optionally, the gas cylinder heating device includes a smoke hood, a fan assembly, an exhaust duct, an air outlet grille, and a condensation exchanger. The smoke hood is covered on the top of the heat exchanger and collects the exhaust gas generated by the burner after combustion. One end of the exhaust duct is connected to the smoke hood to form an exhaust gas recovery passage. The other end of the exhaust duct is connected to the air outlet grille. The fan assembly is arranged on the exhaust gas recovery passage and exhausts the exhaust gas generated in the smoke hood through the exhaust gas recovery passage. The condensation exchanger is arranged in the exhaust duct and performs primary heating on the water supplied to the heat exchanger.

[0011] Wherein, the condensation exchanger is provided with a water inlet end and a water outlet end.

[0012] Optionally, the gas supply component includes 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 to the gas valve to form a gas adjustment part, the gas valve adjusts the amount of gas supplied by the gas cylinder, the gas adjustment part is connected to the burner, and supplies the gas supplied by the gas cylinder to the burner;

[0013] Wherein, the gas valve is detachably connected to the gas cylinder and is connected to the gas supply pipeline to form a supply channel.

[0014] Optionally, the water supply component includes a water outlet pipe, a water inlet connecting nozzle, a water outlet connecting nozzle, a water inlet joint, a water outlet joint, and a condensation exchange tube, one end of the water inlet connecting nozzle is connected to one end of the water inlet joint, the other end of the water inlet joint is connected to one end of the condensation exchange tube to form a water inlet portion, the other end of the condensation exchange tube is connected to the water inlet end of the condensation exchanger, the water outlet connecting nozzle is connected to one end of the water outlet pipe, the other end of the water outlet pipe is connected to the water outlet joint, the water outlet end of the condensation exchanger is connected to one end of a heat exchange tube connected to the heat exchanger, and the other end of the heat exchange tube is connected to the water outlet joint;

[0015] Wherein, the water inlet connection nozzle and the water outlet connection nozzle penetrate the shell and are arranged on both sides of the shell.

[0016] Optionally, the heat exchanger includes a heat exchange chamber, a heat exchange plate, and a heat exchange tube, the heat exchange plate is arranged in the heat exchange chamber to form a heat exchange part, the heat exchange part is configured to be arranged above the burner and receive heat generated by combustion of the heat exchanger, one end of the heat exchange tube is connected to the water outlet end of the condensing exchanger, and the other end of the heat exchange tube is connected to the water outlet joint;

[0017] The middle section of the heat exchange tube is spirally attached to the outer wall of the heat exchange chamber from top to bottom, passes through and spirals in the heat exchange part.

[0018] Optionally, the burner includes a combustion chamber, a nozzle, a gas distributor, an ignition needle, an induction needle, and an air inlet, wherein the combustion chamber is used to burn the gas supplied by the gas supply component, the nozzle is used to spray the gas into the combustion chamber, the gas distributor is used to distribute the gas supplied by the gas supply component and transmit it 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 side of the combustion chamber, and delivers air into the combustion chamber.

[0019] Optionally, the portable gas water heater further includes an anti-dumping switch, which is disposed in the shell and is used to remind the posture of the shell.

[0020] Optionally, the portable gas water heater further includes a thermostat, and the thermostat is disposed on the pipeline of the heat exchange tube.

[0021] Optionally, the portable gas water heater further includes a temperature sensor and a water flow sensor, the temperature sensor is arranged in the heat exchange tube, and the water flow sensor is arranged in the heat exchange tube.

[0022] Optionally, the gas water heater further comprises a power supply, which is preset inside the shell and supplies power to the entire device.

[0023] The beneficial effects achieved by the utility model are:

[0024] 1. The gas cylinder heating device prevents the liquid in the liquefied gas cylinder from freezing, ensuring that the gas cylinder can obtain better and more effective output, thereby improving the user experience and safety of the portable gas water heater;

[0025] 2. Through the coordination between the burner, heat exchanger, condensing exchanger and gas cylinder heating device, the waste gas in the combustion process can be reused to improve the energy utilization efficiency, while also taking into account the protection of the gas cylinder combustion efficiency, ensuring that the entire equipment has the advantages of high gas supply efficiency, good hot water rate and easy to carry;

[0026] 3. The power supply is used to supply the required power to the entire device to maintain the normal operation of the entire device, so that the entire device has the advantages of wide outdoor use scenarios, compactness and easy to carry. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] The present invention can be further understood from the following description in conjunction with the accompanying drawings. The components in the figures are not necessarily drawn to scale, but the emphasis is placed on illustrating the principles of the embodiments. In different views, the same reference numerals designate the same parts.

[0028] Figure 1 It is a schematic structural diagram of a portable gas water heater of the utility model.

[0029] Figure 2 It is a structural schematic diagram of the water outlet connecting nozzle of the utility model.

[0030] Figure 3 It is a schematic diagram of the internal structure of the portable gas water heater of the utility model.

[0031] Figure 4 It is a structural schematic diagram of the heat exchanger and water supply component of the utility model.

[0032] Figure 5 It is a detailed schematic diagram of the heat exchanger of the utility model.

[0033] Figure 6 It is a side view schematic diagram of the heat exchanger and water supply component of the utility model.

[0034] Figure 7 It is a structural schematic diagram of the gas cylinder heating device of the utility model.

[0035] Figure 8 It is a schematic front view of the gas supply component, burner and power supply of the utility model.

[0036] Fig. 9 It is a side view schematic diagram of the gas supply component, burner and power supply of the utility model.

[0037] Fig.10 It is an isometric structural diagram of the gas supply component, burner and power supply of the utility model.

[0038] Fig.11 This is a schematic diagram of an application scenario of loading a gas cylinder with the portable gas water heater of the utility model.

[0039] Fig.12 It is a front view schematic diagram of the portable gas water heater of the utility model loaded with a gas cylinder.

[0040] Fig.13 It is a front view schematic diagram of another embodiment of the utility model.

[0041] Fig.14 The utility model is a schematic structural diagram of a portable gas water heater loaded with a gas cylinder and a hot gas guide component.

[0042] Fig.15 It is a structural schematic diagram of the exhaust duct, condensation exchanger and condensation exchange tube of the utility model.

[0043] Fig.16 This is a schematic diagram of an application scenario in which the hot gas guide component of the utility model blows exhaust gas toward a gas cylinder.

[0044] Description of reference numerals: 1. housing; 2. control panel; 3. air inlet hole; 4. foot pad; 5. storage tank; 6. water inlet connection nozzle; 7. water outlet connection nozzle; 8. water flow sensor; 9. anti-dumping switch; 10. heat exchange tube; 11. power supply; 12. first temperature sensor; 13. water inlet joint; 14. water outlet joint; 15. heat exchange chamber; 16. gas supply pipeline; 17. gas distributor; 18. thermostat; 19. heat exchange part; 20. Fan assembly; 21. Smoke hood; 22. Air outlet grille; 23. Exhaust duct; 24. Nozzle; 25. Combustion chamber; 26. Air inlet; 27. Sensing needle; 28. Ignition needle; 29. ​​Gas cylinder placement area; 30. Gas cylinder; 31. Gas valve; 32. First guide protrusion; 33. Second guide protrusion; 34. Second temperature sensor; 35. Condensation exchanger; 36. Water inlet end; 37. Water outlet end; 38. Condensation exchange tube. DETAILED DESCRIPTION

[0045] The following is an explanation of the implementation of the present invention through specific embodiments. Those skilled in the art can understand the advantages and effects of the present invention from the contents disclosed in this specification. The present invention can be implemented or applied through other different specific embodiments, and the details in this specification can also be modified and changed in various ways based on different viewpoints and applications without departing from the spirit of the present invention. In addition, the drawings of the present invention are only simple schematic illustrations and are not depicted according to actual dimensions. It is stated in advance. The following implementations will further explain the relevant technical contents of the present invention in detail, but the disclosed contents are not intended to limit the scope of protection of the present invention.

[0046] according to Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 , Fig. 9 , Fig.10 , Fig.11 , Fig.12 , Fig.13 , Fig.14 , Fig.15 and Fig.16 As shown, this embodiment provides a portable gas water heater, the portable gas water heater comprises a housing 1, the portable gas water heater further comprises a gas supply component, a gas valve 31, a burner, a heat exchanger, a control system, a water supply component, and a gas cylinder heating device, the gas valve 31, the burner, the heat exchanger, the fan assembly 20, and the gas cylinder heating device are arranged in the housing 1;

[0047] The gas supply component supplies the compressed gas in the gas cylinder 30 to the gas proportional valve and then transmits it to the burner. The burner burns the gas supplied by the gas cylinder 30. The water supply component supplies water to the heat exchanger. The heat exchanger is arranged above the burner and heats the water supplied by the water supply component through the heat exchanger. The gas cylinder heating device recovers the exhaust gas generated by the burner and transmits it to the location where the gas cylinder 30 is placed.

[0048] The gas cylinder 30 is placed at the air outlet of the gas cylinder heating device.

[0049] Specifically, the gas cylinder heating device collects the waste gas generated after the burner heats the heat exchanger, and guides the waste gas to the gas cylinder.

[0050] Wherein, the gas cylinder heating device is directly opposite to the placement position of the gas cylinder, and the recovered waste gas is blown toward the gas cylinder.

[0051] In addition, in the present embodiment, the so-called gas cylinder 30 preferably adopts a thickened gas cylinder 30 body to ensure that there will be no accidents caused by uncertain factors outdoors, thereby improving safety.

[0052] Optionally, the gas cylinder heating device includes a smoke hood 21, a fan assembly 20, an exhaust duct 23, an air outlet grille 22, and a condensation exchanger 35. The smoke hood 21 is covered on top of the heat exchanger and collects exhaust gas generated after combustion of the burner. One end of the exhaust duct 23 is connected to the smoke hood 21 to form an exhaust gas recovery passage, and the other end of the exhaust duct 23 is connected to the air outlet grille 22. The fan assembly 20 is arranged on the exhaust gas recovery passage, and the exhaust gas generated in the smoke hood 21 is discharged through the exhaust gas recovery passage; the condensation exchanger 35 is arranged in the exhaust duct 23, and performs initial heating on the water supplied to the heat exchanger.

[0053] In this embodiment, the supplied water is initially heated by the condensation exchanger, which effectively utilizes the heat of the exhaust gas, improves the heating efficiency of the water, and ensures that the entire device has the advantages of good heating effect, rapid hot water supply, and good comfort in using hot water;

[0054] Among them, after heat conduction through the condensing exchanger 35, the exhaust gas temperature in the exhaust gas recovery passage is reduced to within 45°C, and the exhaust gas generated by the whole machine is discharged through the air outlet grille 22 to achieve secondary utilization and heating effect of the gas cylinder 30, and also ensure that the whole machine will not have local freezing problems during liquefaction output during use.

[0055] In this embodiment, the gas cylinder heating device prevents the liquid in the liquefied gas cylinder 30 from freezing, thereby ensuring that the gas cylinder 30 obtains better effective output, thereby improving the user experience and safety of the portable gas water heater;

[0056] like Fig.11 As shown, the air outlet is arranged opposite to the air outlet grille 22 so that the hot air blown out of the air outlet grille 22 can directly act on the gas cylinder 30;

[0057] Optionally, the gas supply component includes a gas supply pipeline 16, the gas valve 31 is arranged at one end of the gas supply pipeline 16, and the other end of the gas supply pipeline 16 is connected to the gas proportional valve to form a gas adjustment part, the gas proportional valve adjusts the amount of gas supplied by the gas cylinder 30, and the gas adjustment part is connected to the burner and supplies the gas supplied by the gas cylinder 30 to the burner;

[0058] The gas valve 31 is detachably connected to the gas cylinder 30 and is connected to the gas supply pipeline 16 to form a supply channel.

[0059] In this embodiment, the gas cylinder 30 needs to be used in conjunction with the gas valve 31, that is, the gas valve 31 is connected to the gas outlet of the gas cylinder 30 to form a gas supply assembly, and the gas supply assembly is connected to the gas supply pipeline 16;

[0060] In this embodiment, one end of the air supply pipeline 16 extends out of the housing 1 to facilitate the connection of the air supply component.

[0061] In addition, the gas supply component 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.

[0062] Optionally, the heat exchanger includes a heat exchange chamber 15, a heat exchange plate, and a heat exchange tube 10. The heat exchange plate is arranged in the heat exchange chamber 15 to form a heat exchange portion 19. The heat exchange portion 19 is configured to be arranged above the burner and receive the heat generated by the combustion of the heat exchanger. One end of the heat exchange tube 10 is connected to the water outlet end of the condensation exchanger 35, and the other end of the heat exchange tube 10 is connected to the water outlet joint 14.

[0063] In this embodiment, the water inlet connector 13 and the water outlet connector 14 are arranged on both sides of the heat exchange chamber 15. In other embodiments, they may also be arranged at other positions of the heat exchange chamber 15. Therefore, they will not be described in detail in this embodiment.

[0064] The middle section of the heat exchange tube 10 is spirally attached to the outer wall of the heat exchange chamber 15 from top to bottom, and passes through and interlacedly spirals in the heat exchange portion 19 .

[0065] In this embodiment, the heat exchanger is arranged above the burner, and receives the heat generated by the burner burning the gas (supplied by the gas cylinder 30), and conducts the heat through the heat exchange tube 10, and heats the water supplied into the heat exchange tube 10 by the water supply pipe, thereby achieving the heating of the required water.

[0066] Optionally, the water supply component includes a water outlet pipe, a water inlet connection nozzle 6, a water outlet connection nozzle 7, a water inlet joint 13, a water outlet joint 14, and a condensation exchange pipe 38, wherein one end of the water inlet connection nozzle 6 is connected to one end of the water inlet joint, and the other end of the water inlet joint is connected to one end of the condensation exchange pipe 38 to form a water inlet portion, and the other end of the condensation exchange pipe 38 is connected to the water inlet end 36 of the condensation exchanger 35, the water outlet connection nozzle 7 is connected to one end of the water outlet pipe, and the other end of the water outlet pipe is connected to the water outlet joint 14, and the water outlet end 37 of the condensation exchanger is connected to one end of a heat exchange pipe connected to the heat exchanger, and the other end of the heat exchange pipe is connected to the water outlet joint;

[0067] The water inlet connection nozzle 6 and the water outlet connection nozzle 7 penetrate the shell 1 and are arranged on both sides of the shell 1 .

[0068] In addition, through the heat exchange effect of the condensation exchanger 35, the water entering the heat exchange tube through the water inlet nozzle can be preliminarily heated, and the exhaust gas temperature in the exhaust gas recovery passage can be fully utilized to improve the utilization rate of the exhaust gas and ensure the heating efficiency of the hot water.

[0069] When in an outdoor scene, the user can connect the water outlet of the kettle to the water inlet connection nozzle 6 to form a water supply passage, and after being heated by the gas water heater, the water flows out from the water outlet connection nozzle 7. At this time, the user can easily get hot water.

[0070] Optionally, air inlet holes 3 are provided on both sides of the shell 1 , and the air inlet holes 3 penetrate the shell 1 and communicate with the external space.

[0071] Optionally, the burner includes a combustion chamber 25, a nozzle 24, a gas distributor 17, an ignition needle 28, an induction needle 27, and an air inlet 26, wherein the combustion chamber 25 is used to burn the gas supplied by the gas supply component, the nozzle 24 is used to spray the gas into the combustion chamber 25, the gas distributor 17 is used to distribute the gas supplied by the gas supply component and transmit it to 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 side of the combustion chamber 25, and sends air into the combustion chamber 25;

[0072] The sensing needle 27 is used to sense combustion. When the combustion is extinguished, the sensing needle 27 senses an extinguishing signal, randomly transmits the signal to the processor, and controls the gas distributor 17 through the processor to interrupt the supply and distribution of gas to ensure the safety of the entire device.

[0073] The gas supply pipeline of the gas supply component is connected to the gas distributor 17, and after the gas is distributed by the gas distributor 17, it enters the nozzle 24, and the gas is sent into the combustion chamber 25 through the nozzle 24;

[0074] like Figure 8 and Fig. 9 As shown, the gas distributor 17 is connected to the nozzle 24 to achieve gas distribution and transmission.

[0075] In this embodiment, the gas enters the nozzle 24 through the gas distributor 17 and then burns in the combustion chamber 25 to transfer heat energy to the heat exchanger.

[0076] After the gas enters the combustion chamber 25, the ignition needle 28 is triggered to start the ignition synchronously, so that the gas is ignited;

[0077] In addition, during the combustion process, the sensing needle 27 senses the combustion process, and when the combustion process is interrupted or extinguished, the supply operation of the gas distributor 17 and the gas supply component is interrupted immediately;

[0078] The sensing needle 27 is used to enhance the safety protection of the entire device.

[0079] In this embodiment, when in an outdoor scene, the user can supply the water carried with him to the condensation exchange pipe 38 through a suction device (including a water pump or an electric pump, etc.), so as to supply water to the water inlet and establish a water supply path. At this time, the user only needs to determine the required amount of water, then trigger the burner to ignite and heat the heat exchanger. Since the heat exchanger is already connected to the water supply component, after selecting the required amount of water, the water supply component supplies water to the heat exchanger and heats the water through the heat exchanger, so as to obtain the required amount of hot water;

[0080] The suction device (not shown in the figure) is arranged on the condensation exchange pipe 38 and the water outlet pipe to improve the water supply efficiency. It should be noted that the suction speed of the suction device needs to be compatible with the heating efficiency of the heat exchanger to the water, so as to improve the hot water supplied by the water outlet to reach the required temperature;

[0081] In this embodiment, the suction device includes but is not limited to the following types: an electric pump, a suction pump, and a water supply pump, etc. These are technical means well known to those skilled in the art, and thus will not be described in detail.

[0082] In this embodiment, the gas water heater further includes a control panel 2, the control panel 2 includes a power adjustment switch and a water volume adjustment switch, the power adjustment switch is used to control the combustion power, the operator can adjust the combustion power according to actual needs, the power adjustment switch is electrically connected to the segmented solenoid valve, so that the power adjustment switch can achieve different distribution ratios, thereby achieving different combustion powers;

[0083] The water volume regulating switch is used to adjust the required water volume to achieve accurate control of the hot water volume; that is, the water volume required by the user can be selected or set through the water volume regulating switch;

[0084] When the user selects a set amount of water through the water volume adjustment button, the water pump can supply a corresponding amount of water to the heat exchanger for heating, and receive a corresponding amount of hot water from the water outlet connection nozzle 7.

[0085] In this embodiment, the control panel 2 is arranged on the upper end surface of the housing 1;

[0086] At the same time, if Figure 2 As shown, the water volume regulating switch and the power regulating switch are both touch-type control switches;

[0087] In this embodiment, the control system includes a central processing unit, 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 respectively arranged in the water inlet passage and the water outlet passage of the heat exchange tube, and monitor the water inlet temperature and the water outlet temperature in the heat exchange tube 10. The water flow sensor 8 monitors the water flow rate of the heat exchange tube 10. The temperature sensor 34 and the water flow sensor 8 are connected to the controller through a signal line.

[0088] The central processing unit is respectively connected to the first temperature sensor 12, the second temperature sensor 34, the water flow sensor 8, the thermostat 18, the control panel 2, the gas distributor 17, the ignition needle 28, the sensing needle 27, the gas proportional valve, and the suction device control, and based on the central processing unit, the first temperature sensor 12, the second temperature sensor 34, the water flow sensor 8, the thermostat 18, the control panel 2, the gas distributor 17, the ignition needle 28, the sensing needle 27, the gas proportional valve, and the suction device are centrally controlled to improve the precise control of the entire equipment.

[0089] In this embodiment, after the water volume regulating switch adjusts the set water volume, the water volume setting signal is transmitted to the central processor, and the gas distributor 17, the ignition needle 28, the sensing needle 27, the gas proportional valve, and the suction device are controlled by the central processor. Specifically, the suction device sucks the water corresponding to the set water volume into the heat exchange tube 10 through the suction device, and the feedback signal of the water flow sensor 8 in the heat exchange tube 10 detecting the presence of water is transmitted to the central processor. The central processor simultaneously triggers the gas distributor 17 to distribute and supply the gas, so that the gas enters the combustion chamber 25. At the same time, the central processor controls the ignition needle 28 to ignite, thereby heating the heat exchanger and heating the water in the exchange tube. When the first temperature sensor 12 (the temperature of the water inlet pipeline) and the second temperature sensor 34 (the temperature of the water outlet pipeline) feedback that the water temperature reaches the set temperature (the required temperature), the water is supplied to the water outlet connection nozzle 7 and is accepted and used by the user.

[0090] Among them, during the combustion process, the sensor needle 27 detects that the combustion process is stopped or interrupted, and then transmits the sensing signal of the sensor needle 27 to the central processor, and the central processor controls the gas distributor 17 to interrupt the supply of gas, thereby improving the safety of the entire equipment.

[0091] In addition, in this embodiment, the central processor controls the temperature sensor 34, the water flow sensor 8, the thermostat 18, the control panel 2, the gas distributor 17, the ignition needle 28, the sensing needle 27, the gas proportional valve, and the suction device. This is a technical means well known to technicians in this field. Technicians in this field can refer to relevant technical manuals to learn about the technology, so it will not be described one by one in this embodiment.

[0092] Optionally, the portable gas water heater further includes an anti-dumping switch 9 , which is disposed in the housing 1 and is used to remind the posture of the housing 1 .

[0093] The anti-dumping switch 9 can enhance the reminder capability of the entire gas water heater, thereby improving the safety and comfort of the user during use.

[0094] Among them, the anti-dumping switch 9 is provided with a micro switch inside. When the whole device is in a tilted state, the tilted state signal is fed back to the central processor through the micro switch, and the central processor controls the buzzer and other warning devices to issue a warning to remind the user that the device is currently in an unstable state and needs to adjust the warning to improve the safety of the whole device;

[0095] At the same time, the early warning device is arranged in the housing and is controlled and connected with the central processing unit;

[0096] The portable gas water heater further includes a thermostat 18 , which is disposed on the pipeline of the heat exchange tube 10 , and collects the temperature of the heat exchange tube 10 .

[0097] The temperature controller 18 is connected to the central processing unit for centralized control based on the central processing unit.

[0098] At the same time, after the temperature controller 18 collects the temperature in the heat exchange tube 10, the temperature signal is fed back to the central processor, and the central controller determines whether it is necessary to reduce the gas ratio or interrupt the combustion heating process, so as to improve the intelligent control ability of the whole system;

[0099] The temperature controller 18 can also prevent the heat exchange tube 10 from being overheated, thereby ensuring the safe operation of the heat exchange tube 10 and the entire device.

[0100] The gas water heater further comprises at least four foot pads 4, which are arranged on the lower end surface of the housing 1 and are used to support the entire device;

[0101] Preferably, the foot pads 4 are made of rubber foot pads 4 to enhance the stable supporting capacity of the entire device.

[0102] The gas water heater further comprises a power supply 11, which is preset inside the housing and supplies power to the entire device;

[0103] Preferably, the power source 11 is a rechargeable battery;

[0104] The power supply 11 supplies the required power to the entire device to maintain the normal operation of the entire device, so that the entire device has the advantages of a wide range of outdoor usage scenarios, being compact and easy to carry.

[0105] like Figure 1 As shown, a storage slot 5 is also provided outside the housing, and the storage slot 5 is provided outside the housing for users to place some commonly used tools. Preferably, the storage slot 5 is symmetrically provided on both sides of the housing.

[0106] In another embodiment, the gas cylinder heating device further includes a hot air guiding component, which is disposed on one side of the air outlet of the gas cylinder 30 and connected to the edge of the air outlet grille 22 .

[0107] Optionally, the hot air guiding member includes a first guiding protrusion 32 and a second guiding protrusion 33, the first guiding protrusion 32 and the second guiding protrusion 33 are symmetrically arranged on both sides of the air outlet grille 22, and guide the hot air direction of the exhaust duct 23;

[0108] The first guide protrusion 32 and the second guide protrusion 33 protrude toward the placement position of the gas cylinder 30 , and guide the hot air of the exhaust duct 23 to the outer periphery of the gas cylinder 30 .

[0109] In this embodiment, if Fig.16 As shown, the generated exhaust gas is guided by the hot gas guiding component, which increases the heating area of ​​the exhaust gas blowing toward the gas cylinder 30, improves the gas supply efficiency of the gas cylinder 30, and ensures that the entire equipment has the advantages of smooth, efficient and safe gas supply.

[0110] In this embodiment, the waste gas discharged from the water heater is mainly used for secondary utilization, and then the safe residual temperature is discharged after passing through the gas cylinder heating device, and the hot air prevents the liquid at the bottom of the gas cylinder 30 from freezing. At the same time, the gas cylinder 30 can obtain better effective output during operation, the heating time of the water heater is shortened, and the thermal efficiency of the whole machine is improved, the use time of the gas is extended, and the good experience effect of the water heater during use is improved.

[0111] The contents disclosed above are only preferred feasible embodiments of the present utility model, and do not limit the protection scope of the present utility model. Therefore, all equivalent technical changes made using the contents of the present utility model specification and drawings are included in the protection scope of the present utility model. In addition, the elements therein can be updated as technology develops.

Claims

1. A portable gas water heater, comprising a housing, characterized in that: The portable gas water heater further comprises a gas supply member, a gas valve, a burner, a heat exchanger, a control system, a water supply member, and a gas cylinder heating device, wherein the gas valve, the burner, the heat exchanger, the control system, and the gas cylinder heating device are arranged in the housing; The gas supply component supplies the compressed gas in the gas cylinder to the gas valve and then transports it 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. The gas cylinder heating device collects the exhaust gas generated after the burner heats the heat exchanger and guides the exhaust gas to the gas cylinder.

2. The portable gas water heater according to claim 1, characterized in that: The gas cylinder heating device comprises a smoke collecting hood, a fan assembly, an exhaust duct, an air outlet grille, and a condensation exchanger. The smoke collecting hood is buckled over the heat exchanger and collects the exhaust gas generated by the burner after combustion. One end of the exhaust duct is connected to the smoke collecting hood to form an exhaust gas recovery passage. The other end of the exhaust duct is connected to the air outlet grille. The fan assembly is arranged on the exhaust gas recovery passage and exhausts the exhaust gas generated in the smoke collecting hood through the exhaust gas recovery passage. The condensation exchanger is arranged in the exhaust duct and performs primary heating on the water supplied to the heat exchanger. Wherein, the condensation exchanger is provided with a water inlet end and a water outlet end.

3. The portable gas water heater according to claim 1, characterized in that: The gas supply component includes 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 to the gas valve to form a gas adjustment part, the gas valve adjusts the amount of gas supplied by the gas cylinder, the gas adjustment part is connected to the burner, and supplies the gas supplied by the gas cylinder to the burner; Wherein, the gas valve is detachably connected to the gas cylinder and is connected to the gas supply pipeline to form a supply channel.

4. The portable gas water heater according to claim 2, characterized in that: The water supply component includes a water outlet pipe, a water inlet connection nozzle, a water outlet connection nozzle, a water inlet joint, a water outlet joint, and a condensation exchange pipe, one end of the water inlet connection nozzle is connected to one end of the water inlet joint, the other end of the water inlet joint is connected to one end of the condensation exchange pipe to form a water inlet portion, the other end of the condensation exchange pipe is connected to the water inlet end of the condensation exchanger, the water outlet connection nozzle is connected to one end of the water outlet pipe, the other end of the water outlet pipe is connected to the water outlet joint, the water outlet end of the condensation exchanger is connected to one end of the heat exchange pipe connected to the heat exchanger, and the other end of the heat exchange pipe is connected to the water outlet joint; Wherein, the water inlet connection nozzle and the water outlet connection nozzle penetrate the shell and are arranged on both sides of the shell.

5. The portable gas water heater according to claim 4, characterized in that: The heat exchanger comprises a heat exchange chamber, a heat exchange plate, and a heat exchange tube. The heat exchange plate is arranged in the heat exchange chamber to form a heat exchange part. The heat exchanger is heated by a burner and receives heat generated by the combustion of the heat exchanger. One end of the heat exchange tube is connected to the water outlet end of the condensing exchanger, and the other end of the heat exchange tube is connected to the water outlet joint. The middle section of the heat exchange tube is spirally attached to the outer wall of the heat exchange chamber from top to bottom, passes through and spirals in the heat exchange part.

6. The portable gas water heater according to claim 1, characterized in that: The burner includes a combustion chamber, a nozzle, a gas distributor, an ignition needle, an induction needle, and an air inlet. The combustion chamber is used to burn the gas supplied by the gas supply component. The nozzle is used to spray the gas into the combustion chamber. The gas distributor is used to distribute the gas supplied by the gas supply component and transmit it to the nozzle. The ignition needle is arranged in the combustion chamber and ignites the gas entering the combustion chamber. The air inlet is arranged on the bottom wall and side of the combustion chamber and delivers air into the combustion chamber.

7. The portable gas water heater according to claim 1, characterized in that: The portable gas water heater further comprises an anti-dumping switch, which is arranged in the shell and is used to remind the posture of the shell.

8. The portable gas water heater according to claim 5, characterized in that: The portable gas water heater further comprises a thermostat, which is arranged on the pipeline of the heat exchange tube.

9. The portable gas water heater according to claim 4 or 5, characterized in that: The portable gas water heater further comprises a temperature sensor and a water flow sensor. The temperature sensor is arranged in the heat exchange tube, and the water flow sensor is arranged in the heat exchange tube.

10. The portable gas water heater according to claim 1, characterized in that: The gas water heater also includes a power supply, which is preset inside the shell and supplies power to the entire device.

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