Alcohol heater device based on double-chamber heat exchange

Abstract

The utility model relates to an alcohol heater device based on double-chamber heat exchange, and belongs to the technical field of waste heat recycling. The methanol heater device comprises a shell, a methanol fuel heater, a heat exchanger and a GSM (Global System for Mobile Communications) communication module; wherein the methanol fuel heater comprises a combustion chamber and a heat exchanger; the combustion chamber is arranged in the heat exchanger, the heat exchanger comprises a heat exchange shell, a tail gas inlet and a tail gas outlet, the tail gas inlet and the tail gas outlet are formed in the heat exchange shell, and a cooling liquid heat exchange unit is arranged in the heat exchange shell; the heat exchanger comprises an air side heat exchange unit and a cooling liquid side heat exchange unit; a tail gas inlet of the heat exchanger is connected with a tail gas outlet of the combustion chamber. A tail gas outlet is connected with an air inlet of an air-side heat exchange unit of the heat exchanger. And a cooling liquid outlet of the cooling liquid heat exchange unit is connected with a cooling liquid inlet of the cooling liquid side heat exchange unit. According to the alcohol heater device, the tail gas waste heat utilization rate and the energy conversion efficiency can be effectively improved through a double-cavity heat exchange structure and multi-stage heat recovery.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of waste heat recovery and utilization, in particular to an alcohol heat device based on double-chamber heat exchange. BACKGROUND

[0002] The alcohol heat device (also known as a methanol fuel heater) is an energy conversion device that uses methanol as fuel, heats water or other liquid media through combustion heat exchange principle to provide heat source, has the characteristics of small volume, light weight, easy installation and use, fast heating speed, complete combustion, small pollution and good environmental protection, and the content of emission pollutants is only 1 / 3-1 / 2 of that of fuel heater, and no smoke is generated when starting and stopping. It can be applied to new energy vehicles to provide heat source for the whole vehicle in cold seasons.

[0003] For example, CN108049999A discloses a methanol heater, which comprises a body, an air inlet is formed at one end of the body, a pre-combustion chamber is arranged at the other end of the body, the pre-combustion chamber is arranged in a heat exchanger and connected with a main combustion chamber in the heat exchanger, an exhaust port is formed in the heat exchanger, a heat exchange medium outlet of the heat exchanger is connected with a heating medium inlet of an automobile radiator, a heat exchange medium inlet of the heat exchanger is connected with one end of a circulating pump, the other end of the circulating pump is connected with a heating medium outlet of the automobile radiator, a fuel pump for providing methanol is arranged between the air inlet and the pre-combustion chamber in the body, a nozzle is connected with a liquid outlet of the fuel pump, and a ignition electrode is arranged adjacent to the nozzle in the body. CN207847806U discloses an electric motor support and a methanol heater using the same, wherein the electric motor support is compact in structure, and can integrate the controller, combustion-supporting fan and electric motor together, thereby greatly reducing the volume of the product; the methanol heater comprises a water jacket body, a combustion chamber, an electric motor support, a controller, a combustion-supporting fan and an electric motor, the controller is arranged on the left side wall of the electric motor support, the combustion-supporting fan is arranged on the top of the electric motor support, the electric motor is arranged in the bottom cavity of the electric motor support and connected with the combustion-supporting fan to provide power for the combustion-supporting fan; the right body of the combustion chamber is installed in the inner cavity of the water jacket body, and the left body is fixed on the electric motor support together with the water jacket body, and the water jacket body is fixed on the electric motor support by screws. The methanol heater uses methanol as fuel to heat water or other liquid media to provide heat source for the whole vehicle, is energy-saving and environmentally friendly, and is convenient for use in new energy vehicles.

[0004] However, due to the small cavity of the existing methanol fuel heater and the fact that it only contains one heat exchanger, the heat exchange is not sufficient and the heat exchange efficiency is not high; in addition, the methanol combustion exhaust gas carries away a large amount of waste heat, resulting in a large amount of heat loss and low energy conversion efficiency. In order to improve the heat exchange efficiency, heat recovery rate and energy conversion efficiency of the methanol fuel heater, the present application designs a device that fully utilizes the methanol combustion exhaust gas waste heat through a double-chamber heat exchange structure, performs multi-stage heat recovery, and effectively improves the waste heat utilization rate and energy conversion efficiency. SUMMARY

[0005] In order to solve the problems in the prior art, the application provides an alcohol heat treasure device based on double-chamber heat exchange, which carries out multi-stage heat recovery of methanol combustion tail gas waste heat through a double-chamber heat exchange structure, effectively improves the waste heat utilization rate and energy conversion efficiency of the methanol combustion tail gas, and thus improves the heat exchange efficiency, heat recovery rate and energy conversion efficiency of the traditional methanol fuel oil heater.

[0006] In order to achieve the above-mentioned purpose, the application adopts the following technical solutions.

[0007] An alcohol heat treasure device based on double-chamber heat exchange, comprising a shell, a methanol fuel oil heater, a heat exchanger, a methanol aqueous solution storage tank, a cooling liquid storage tank, a GSM communication module, a methanol feeding pump and a cooling liquid pump, wherein,

[0008] The methanol fuel oil heater comprises a combustion chamber and a heat exchanger; the combustion chamber is arranged inside the heat exchanger; the heat exchanger comprises a heat exchange shell and a tail gas inlet and a tail gas outlet arranged on the heat exchange shell; a cooling liquid heat exchange unit is arranged inside the heat exchange shell; the tail gas inlet of the heat exchanger is connected with the tail gas outlet of the combustion chamber;

[0009] The heat exchanger comprises an air side heat exchange unit and a cooling liquid side heat exchange unit;

[0010] The tail gas outlet of the heat exchanger is connected with the air inlet of the air side heat exchange unit of the heat exchanger; the cooling liquid inlet of the cooling liquid heat exchange unit is connected with the cooling liquid storage tank; the cooling liquid outlet of the cooling liquid heat exchange unit is connected with the cooling liquid inlet of the cooling liquid side heat exchange unit of the heat exchanger; the cooling liquid outlet of the cooling liquid side heat exchange unit is connected with a user end, so as to form the alcohol heat treasure device based on double-chamber heat exchange and multi-stage waste heat recovery;

[0011] The GSM communication module is used for controlling the methanol fuel oil heater, the methanol feeding pump and the cooling liquid pump.

[0012] The alcohol heat treasure device provided in the application, the tail gas outlet of the heat exchanger is connected with the air inlet of the air side heat exchange unit of the heat exchanger, forming a double-chamber heat exchange structure, at the same time, the cooling liquid (or cooling water) discharged from the heat exchanger in the methanol fuel heater is connected with the cooling liquid side inlet of the heat exchanger, which can utilize the cooling liquid to recycle the waste heat of the combustion tail gas. That is, the heat generated by the combustion chamber is absorbed by the cooling liquid in the heat exchanger, and the high-temperature combustion tail gas generated by the combustion chamber can also heat the cooling liquid in the cooling liquid unit in the heat exchanger, so that the first-stage recycling of the waste heat of the combustion tail gas in the heat exchanger is realized; the combustion tail gas is discharged from the heat exchanger and enters the air side heat exchange unit of the heat exchanger and performs the second-stage recycling of the waste heat of the combustion tail gas therein. The air side heat exchange unit of the heat exchanger is used for the flow of the high-temperature combustion tail gas of the methanol fuel heater, and the cooling liquid side heat exchange unit is used for the flow of the cooling liquid discharged from the heat exchanger; in the heat exchanger, the cooling liquid with a lower temperature exchanges heat with the high-temperature tail gas, so that the temperature of the combustion tail gas is reduced and the temperature of the cooling liquid is increased, thereby achieving the purpose of recycling the waste heat of the tail gas by using the cooling liquid.

[0013] In the application, the methanol fuel heater can adopt a conventional fuel heater in the field, for example, a commercially available fuel heater, or a methanol heater as described in patent CN108049999A. Those skilled in the art can select a fuel heater or a methanol heater with a suitable volume and weight as the methanol fuel heater of the application according to the needs.

[0014] As an optional embodiment, the methanol fuel heater, the heat exchanger, the methanol aqueous solution storage tank, the GSM communication module, the methanol feeding pump and the cooling liquid pump are all arranged inside the shell.

[0015] In the application, the cooling liquid storage tank can be arranged inside or outside the shell according to actual needs.

[0016] As an optional embodiment, the heat exchanger further comprises a tail gas heat exchange unit arranged between the heat exchange shell and the cooling liquid heat exchange unit.

[0017] In order to further improve the utilization rate of the waste heat of the tail gas, a tail gas heat exchange unit can be added between the heat exchange shell and the cooling liquid heat exchange unit of the heat exchanger.

[0018] As an optional embodiment, the heat exchanger can adopt a conventional heat exchanger in the field, including one of a tube-shell type, a jacketed tube type, a spiral plate type, a plate-fin type, a plate-and-frame type and a plate-and-shell type.

[0019] As an optional embodiment, the flow direction of the tail gas in the tail gas heat exchange unit is opposite to the flow direction of the cooling liquid in the cooling liquid heat exchange unit.

[0020] As an optional embodiment, in the heat exchanger, the air flow direction of the air side heat exchange unit is opposite to the cooling liquid flow direction of the cooling liquid side heat exchange unit.

[0021] As an optional embodiment, the methanol fuel heater further comprises an air filter, which is connected to the air inlet of the methanol fuel heater, and is used to filter the air entering the methanol fuel heater.

[0022] In this application, the air (for combustion support) enters the methanol fuel heater through the air inlet of the methanol fuel heater and is filtered in the air filter. The filtered air is mixed with the liquid fuel mixture formed by the methanol aqueous solution entering the methanol fuel heater through the methanol inlet. Then, the liquid fuel mixture is pumped into the combustion chamber of the methanol fuel heater by the methanol inlet pump to produce heat by combustion. The heat generated by the combustion of the methanol aqueous solution in the methanol fuel heater is exchanged and cooled by the cooling liquid pumped by the cooling liquid pump. Then, the cooling liquid and the high-temperature exhaust gas generated by the combustion of the methanol aqueous solution in the methanol fuel heater are subjected to secondary heat exchange by the conventional heat exchanger, so as to achieve the purpose of multi-stage heat recovery and exhaust gas waste heat utilization. The methanol fuel heater provided in this application effectively improves the exhaust gas waste heat utilization rate and energy conversion efficiency through the double-chamber structure and multi-stage heat recovery.

[0023] As an optional embodiment, the methanol fuel heater further comprises a volatilization and atomization system, which is used to atomize the methanol aqueous solution entering the methanol fuel heater through the methanol inlet, and then mix it with air or filtered air before entering the combustion chamber for combustion to produce heat.

[0024] As an optional embodiment, the volatilization and atomization system is arranged in the methanol fuel heater and located in the pipeline between the methanol aqueous solution pipeline and the combustion chamber.

[0025] As an optional embodiment, the methanol inlet of the methanol fuel heater is connected to the methanol aqueous solution storage tank through the methanol inlet pump.

[0026] As an optional embodiment, in the methanol fuel heater, the cooling liquid inlet of the cooling liquid heat exchange unit of the heat exchanger is connected to the cooling liquid storage tank through the cooling liquid pump.

[0027] As an optional embodiment, the exhaust gas inlet of the heat exchanger is connected to the exhaust gas outlet of the combustion chamber through a high-temperature resistant conversion head.

[0028] As an optional embodiment, the exhaust gas inlet of the heat exchanger is connected to the exhaust gas outlet of the combustion chamber through a high-temperature resistant adapter, and the sealing mode is optionally a high-temperature resistant sealing ring.

[0029] As an optional implementation, the tail gas outlet of the heat exchanger is connected to the air inlet of the air side heat exchange unit of the heat exchanger through a high-temperature resistant adapter.

[0030] As an optional implementation, the tail gas outlet of the heat exchanger is connected to the air inlet of the air side heat exchange unit of the heat exchanger through a high-temperature resistant adapter, and the connection is sealed, and the sealing can be achieved by using a high-temperature resistant sealing ring.

[0031] As an optional implementation, the heat exchanger is made of aluminum alloy.

[0032] In the present application, the heat exchanger is made of aluminum alloy, which is beneficial to heat transfer and improves the heat exchange efficiency. In addition, aluminum alloy also has the advantages of light weight, easy machining, easy integration, etc.

[0033] As an optional implementation, the heat exchanger can be a conventional heat exchanger in the art, including one of a shell-and-tube type, a double-pipe type, a spiral plate type, a plate-fin type, a plate-and-frame type, and a plate-and-shell type.

[0034] As an optional implementation, the alcohol heat device is subjected to overall heat preservation treatment by using a heat preservation component (including heat preservation material).

[0035] As an optional implementation, the overall component includes pipelines and electrical lines connecting each component.

[0036] As an optional implementation, the heat preservation component is prepared by using a heat preservation material, and the heat preservation material includes heat preservation cotton or a heat insulation sleeve.

[0037] In the present application, the alcohol heat device is subjected to heat preservation by using heat preservation cotton or a heat insulation sleeve for each pipeline and electrical line, thereby reducing heat loss.

[0038] As an optional implementation, the concentration of the methanol aqueous solution is 30-100% vol, i.e., the volume concentration of the methanol aqueous solution is 30-100% (for example, 40%, 50%, 70%, or 90%).

[0039] In the present application, the fuel (or fuel oil) in the methanol fuel heater is a methanol aqueous solution with a concentration of 30-100% vol.

[0040] As an optional implementation, the cooling liquid includes at least one of water, antifreeze, and cooling oil.

[0041] As an optional implementation, the voltage of the methanol fuel heater is DC 12-220V (for example, 50V, 100V, 150V or 200V), the input power is 30-1000W (for example, 100W, 200W, 400W, 500W, 600W, 800W or 900kW), and the output power is 1-10kW (for example, 2kW, 5kW, 7kW or 9kW).

[0042] As an optional implementation, the alcohol heater device is applied to a user end requiring low-temperature heating, and the user end includes a car, a new energy vehicle, field camping, an indoor cold winter, a remote mountainous area and a plateau area, and a low-temperature lithium battery.

[0043] As an optional implementation, when the alcohol heater device based on the double-chamber heat exchange is applied to a new energy vehicle, a radiator inside the car is used to replace the cooling liquid storage tank, one end of the cooling liquid pump is connected to the cooling liquid inlet of the cooling liquid heat exchange unit of the heat exchanger, the other end of the cooling liquid pump is connected to the heating medium outlet of the radiator inside the car, the cooling liquid outlet of the cooling liquid heat exchange unit is connected to the cooling liquid inlet of the cooling liquid side heat exchange unit of the heat exchanger, and the cooling liquid outlet of the cooling liquid side heat exchange unit of the heat exchanger is connected to the heating medium inlet of the radiator inside the car. The alcohol heater device can be used to heat the heating medium inside the radiator of the car in a circulating manner, thereby providing a heat source for the whole car.

[0044] The alcohol heater device provided in the application, wherein the GSM communication module is used to control the methanol fuel heater, the methanol feeding pump and the cooling liquid pump, which can effectively avoid the failure caused by insufficient fuel or overheating of the methanol fuel heater. The GSM communication module can adopt conventional technologies in the field.

[0045] In the application, the above technical solutions can be freely combined to form new technical solutions without conflict.

[0046] The technical solution of the application has the following beneficial technical effects relative to the prior art:

[0047] (1) The alcohol heater device provided in the application adds a heat exchanger with compact volume and light weight based on a conventional alcohol heater device, thereby constructing an alcohol heater device with double heat exchange chambers. In the case of a small increase in the volume and weight of the heat exchanger, the utilization rate of exhaust heat and the energy conversion efficiency of the alcohol heater device are effectively improved, so that the alcohol heater device is better applied to user ends requiring low-temperature heating, such as new energy vehicles, to provide a heat source for the client in cold seasons.

[0048] (2) The alcohol heat device provided by the application can effectively improve the tail gas waste heat utilization rate and energy conversion efficiency through the double-chamber structure and multi-stage heat recovery, so that the weight of the alcohol heat device can be reduced by reducing the use amount of methanol aqueous solution as energy in the same application environment in the case of improving the energy conversion efficiency, and the alcohol heat device is more favorably applied to new energy vehicles to provide a heat source for the whole vehicle.

[0049] (3) The alcohol heat device provided by the application can provide a heat source for the user end by the hot water flowing out of the cooling liquid outlet of the heat exchanger, and the tail gas discharged from the tail gas outlet of the air side heat exchange unit of the heat exchanger still has a high temperature, so that the tail gas is also utilized in the user end (for example, a vehicle) to provide a heat source for the user. BRIEF DESCRIPTION OF DRAWINGS

[0050] The accompanying drawings, which are incorporated into and form part of the specification, illustrate embodiments consistent with the present application and, together with the description, serve to explain the principles of the application.

[0051] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the accompanying drawings needed to be used in the embodiments or prior art description will be briefly introduced as follows. Obviously, those skilled in the art can obtain other drawings from these drawings without any creative effort.

[0052] Figure 1 FIG. 1 is a structural schematic diagram of an alcohol heat device based on double-chamber heat exchange according to the present application. DETAILED DESCRIPTION

[0053] In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without any creative effort belong to the scope of protection of the present application.

[0054] Unless otherwise specified, all the various raw materials, reagents, instruments and equipment used in the present application can be purchased from the market or can be prepared by the existing method.

[0055] Embodiment 1

[0056] An alcohol heat device based on double-chamber heat exchange comprises a shell, an air filter, a methanol fuel heater, a heat exchanger, a methanol aqueous solution storage tank, a cooling liquid storage tank, a GSM communication module, a methanol feeding pump and a cooling liquid pump; as shown in FIG. 1. Figure 1 As shown in FIG. 1, the alcohol heat device based on double-chamber heat exchange comprises a shell, an air filter, a methanol fuel heater, a heat exchanger, a methanol aqueous solution storage tank, a cooling liquid storage tank, a GSM communication module, a methanol feeding pump and a cooling liquid pump.

[0057] The methanol fuel heater includes a combustion chamber and a heat exchanger; the combustion chamber is located inside the heat exchanger, which includes a heat exchange shell and an exhaust gas inlet and an exhaust gas outlet located on the heat exchange shell. A coolant heat exchange unit is located inside the heat exchange shell; the exhaust gas inlet of the heat exchanger is connected to the exhaust gas outlet of the combustion chamber.

[0058] The heat exchanger includes an air-side heat exchange unit and a coolant-side heat exchange unit. The air-side heat exchange unit provides a flow path for the exhaust gas discharged from the methanol fuel heater, while the coolant-side heat exchange unit provides a flow path for the coolant, thereby recovering the waste heat from the high-temperature exhaust gas. The heat exchanger is made of aluminum alloy, which is beneficial for heat transfer and improves heat exchange efficiency. In addition, aluminum alloy also has advantages such as light weight, ease of machining, and ease of integration.

[0059] The exhaust gas inlet of the heat exchanger is connected to the exhaust gas outlet of the combustion chamber, and the exhaust gas outlet is connected to the air inlet of the air-side heat exchange unit of the heat exchanger; the coolant inlet of the coolant heat exchange unit is connected to the coolant storage tank, the coolant outlet of the coolant heat exchange unit is connected to the coolant inlet of the coolant-side heat exchange unit of the heat exchanger, and the coolant outlet of the coolant-side heat exchange unit is connected to the user end that needs heating, thus forming a multi-stage waste heat recovery alcohol heat recovery device including a heat exchanger and a dual-chamber heat exchanger.

[0060] The GSM communication module is used to control the methanol fuel heater, methanol feed pump, and coolant pump.

[0061] Specifically, such as Figure 1 As shown, the air filter is connected to the air inlet of the methanol fuel heater. After being filtered by the air filter, the air enters the methanol fuel heater as the combustion-supporting fuel for methanol combustion. It forms a fuel mixture with the methanol-water solution introduced through the methanol inlet and burns in the combustion chamber of the methanol fuel heater to generate heat. The methanol feed pump is connected to the methanol inlet (or methanol-water solution inlet) of the methanol fuel heater. The methanol-water solution (concentration of 30-100% vol) is pumped into the methanol fuel heater as fuel and mixed with air. It is then burned in the combustion chamber to generate heat. This heat exchanges with the coolant in the heat exchanger, causing the coolant to heat up. At the same time, the combustion produces high-temperature exhaust gas. The high-temperature exhaust gas also exchanges heat with the coolant in the heat exchanger, further heating the coolant and lowering the exhaust gas temperature. The cooled exhaust gas is discharged through the exhaust gas outlet on the heat exchanger and enters the air-side heat exchange unit of the heat exchanger. The heated coolant enters the coolant-side heat exchange unit of the heat exchanger, where the cooled exhaust gas further exchanges heat with the heated coolant, causing the coolant temperature to rise again and the exhaust gas temperature to drop again.

[0062] The cooling liquid inlet of the heat exchanger is connected with the cooling pump, the cooling liquid is transported to the heat exchanger by the cooling pump to exchange heat (or heat) with the combustion tail gas entering the heat exchanger, and then flows out of the cooling liquid after being heated by the cooling liquid outlet of the heat exchanger. The cooling liquid outlet of the heat exchanger is connected with the cooling liquid inlet of the cooling side of the heat exchanger, and the heated cooling liquid enters the cooling side of the heat exchanger. The tail gas outlet of the heat exchanger is sealingly connected with the air side inlet of the heat exchanger through a high-temperature adapter, and the sealing mode adopts a high-temperature-resistant special sealing ring; the methanol combustion tail gas discharged from the tail gas outlet of the heat exchanger enters the air side of the heat exchanger, exchanges heat with the heated cooling liquid entering the cooling side of the heat exchanger, and the cooling liquid is further heated to become hot water, which flows out of the cooling liquid outlet of the cooling liquid side heat exchange unit of the heat exchanger and provides heat source for the user. For example, when the user end is a car, the radiator inside the car is used instead of the cooling liquid tank, so that the cooling liquid inlet of the cooling liquid heat exchange unit of the heat exchanger is connected with one end of the cooling liquid pump, and the other end of the cooling liquid pump is connected with the heating medium outlet of the radiator inside the car; the cooling liquid outlet of the cooling liquid heat exchange unit is connected with the cooling liquid inlet of the cooling liquid side heat exchange unit of the heat exchanger, and the cooling liquid outlet of the cooling liquid side heat exchange unit of the heat exchanger is connected with the heating medium inlet of the radiator inside the car; in this way, the hot water flowing out of the heat exchanger can be directly used in the car and heat the parts inside the car. The methanol combustion tail gas after heat exchange is discharged from the air side outlet of the heat exchanger.

[0063] The alcohol heat device provided by the embodiment has a voltage of DC 12-220V, an input power of 30-1000W, and an output power of 1-10kW. The tail gas outlet of the heat exchanger in the methanol fuel heater is connected with the air side inlet of the heat exchanger, forming a double-chamber heat exchange structure. Meanwhile, the heated cooling liquid discharged from the heat exchanger in the methanol fuel heater is connected with the cooling liquid side inlet of the heat exchanger, so that multi-stage heat recovery of the waste heat of the combustion tail gas can be performed. Through the double-chamber heat exchange structure and the multi-stage heat recovery of the alcohol heat device, the waste heat utilization rate and the energy conversion efficiency of the methanol combustion tail gas in the conventional methanol fuel heater (or methanol heater) can be effectively improved.

[0064] Embodiment 2

[0065] The alcohol heat device provided by the embodiment is based on double-chamber heat exchange, and differs from the embodiment 1 in that the alcohol heat device is subjected to overall heat preservation treatment by using heat preservation materials, which include heat preservation treatment of the pipelines in the alcohol heat device and the electrical lines connecting the various components. The heat preservation materials are heat preservation cotton or heat insulation sleeves, so as to reduce heat loss of the alcohol heat device during use and improve the waste heat utilization rate and the energy conversion efficiency.

[0066] Embodiment 3

[0067] The alcohol heating device provided by the embodiment is based on double-chamber heat exchange, has a size of 300 mm*300 mm*250 mm, and is used for heating a new energy vehicle in winter. The difference between the alcohol heating device and the alcohol heating device of the embodiment 1 is that a commercially available fuel heater (YJH-Q6 / 1A-JC) is used, the size of the fuel heater is 225 mm*165 mm*90 mm, and the weight of the fuel heater is 2.9 kg; and the heat exchanger is a plate-fin heat exchanger, the size of the heat exchanger is 153 mm*132 mm*67 mm, and the weight of the heat exchanger is 1.2 kg.

[0068] The alcohol heating device provided by the embodiment has a voltage of DC 12 V, an input power of 45 W, and an output power of 6 kW. When the temperature of the cooling liquid entering the alcohol heating device is increased from room temperature 18 ℃ to 80 ℃, the consumption of methanol is 307 g, and the heating time is 23 min 16 s.

[0069] Comparative example 1

[0070] The alcohol heating device for heating a new energy vehicle is different from the alcohol heating device of the embodiment 3 in that the alcohol heating device does not include a heat exchanger, that is, the alcohol heating device has a single-chamber heat exchange mode. When the mass of the cooling liquid entering the alcohol heating device is 20 kg and the temperature of the cooling liquid is increased from room temperature 18 ℃ to 80 ℃, the consumption of methanol of the single-chamber alcohol heating device is 371 g, and the heating time is 27 min 35 s.

[0071] Compared with the alcohol heating device of the comparative example 1, the alcohol heating device of the embodiment 3 has a double-chamber heat exchange structure and a multi-stage heat recovery technology, and the consumption of methanol and the heating time are obviously reduced. The consumption of methanol is 82.75% of the consumption of methanol of the single-chamber alcohol heating device of the comparative example 1, and is reduced by 17.25%. The heating time is 84.35% of the heating time of the comparative example 1, and is reduced by 15.65%.

[0072] In the prior art, in order to better provide a heat source for a new energy vehicle in winter, the temperature of the cooling liquid entering the alcohol heating device generally needs to be increased to 60-85 ℃.

[0073] It can be known from the comparison between the embodiment 3 and the comparative example 1 that the alcohol heating device provided by the present application can effectively improve the utilization rate of exhaust gas waste heat and the energy conversion efficiency by adopting a double-chamber heat exchange structure and a multi-stage heat recovery, so as to provide higher temperature or longer heating time for a new energy vehicle under the condition of the same consumption of methanol. Or, under the condition of improved energy conversion efficiency, when the alcohol heating device is applied to the same or similar environment (such as a new energy vehicle), the use amount of methanol water solution as energy is reduced to reduce the weight of the alcohol heating device, so that the alcohol heating device according to the present application is more suitable for application in a new energy vehicle, and can more economically provide a heat source for a vehicle in a cold season.

[0074] The description above merely describes specific embodiments of the present application, and enables those skilled in the art to understand or implement the present application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein can be applied to other embodiments without departing from the spirit or scope of the application. Thus, the present application is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein. In the present application, the terms "first", "second", "third", etc. are used only to describe the purpose and are not to be construed as indicating or implying relative importance. The term "multiple" refers to two or more, unless otherwise explicitly limited. The terms "mount", "connect", "couple", "fix", and the like, should be interpreted broadly, for example, "connect" can be fixed connection, or detachable connection, or integral connection; can be direct connection, or indirect connection through an intermediate medium. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0075] In the description of the present application, it should be understood that the terms "upper", "lower", "left", "right", "front", "back", etc. indicate the orientation or positional relationship shown in the drawings, and are only for the purpose of facilitating the description of the present application and simplifying the description, and do not indicate or imply that the devices or units referred to must have a particular direction, be constructed and operated in a particular orientation, therefore, cannot be understood as a limitation on the present application.

[0076] In the description of the present application, the terms "one embodiment", "some embodiments", "a specific embodiment", etc. mean that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In the present specification, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0077] The above is only the preferred embodiment of the present application, and is not intended to limit the present application. For those skilled in the art, the present application can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A device for alcohol heating based on heat exchange of double-chamber, characterized in that, The device comprises a shell, a methanol fuel heater, a heat exchanger, a methanol water solution storage tank, a cooling liquid storage tank, a GSM communication module, a methanol feeding pump and a cooling liquid pump. The methanol fuel heater comprises a combustion chamber and a heat exchanger; the combustion chamber is arranged inside the heat exchanger; the heat exchanger comprises a heat exchange shell and a tail gas inlet and a tail gas outlet arranged on the heat exchange shell; the inside of the heat exchange shell is provided with a cooling liquid heat exchange unit; the tail gas inlet of the heat exchanger is connected with the tail gas outlet of the combustion chamber. The heat exchanger comprises an air side heat exchange unit and a cooling liquid side heat exchange unit. The tail gas outlet of the heat exchanger is connected with the air inlet of the air side heat exchange unit of the heat exchanger; the cooling liquid inlet of the cooling liquid heat exchange unit is connected with the cooling liquid storage tank; the cooling liquid outlet of the cooling liquid heat exchange unit is connected with the cooling liquid inlet of the cooling liquid side heat exchange unit of the heat exchanger; the cooling liquid outlet of the cooling liquid side heat exchange unit is connected with a user end. The GSM communication module is used for controlling the methanol fuel heater, the methanol feeding pump and the cooling liquid pump.

2. The alcohol heating device based on double-chamber heat exchange according to claim 1, wherein The methanol fuel heater, the heat exchanger, the methanol water solution storage tank, the GSM communication module, the methanol feeding pump and the cooling liquid pump are arranged inside the shell; or / and The heat exchanger further comprises a tail gas heat exchange unit arranged between the heat exchange shell and the cooling liquid heat exchange unit; or / and The alcohol heating device further comprises an air filter connected with the air inlet of the methanol fuel heater; or / and The methanol fuel heater further comprises a volatile atomization system used for atomizing the methanol water solution input through the methanol feeding port of the methanol fuel heater; or / and The heat exchanger adopts aluminum alloy material; the heat exchanger comprises one of a tube-shell type, a sleeve type, a spiral plate type, a plate-fin type, a plate-frame type and a plate-shell type; or / and The alcohol heating device is subjected to overall heat preservation treatment by using a heat preservation component.

3. The alcohol heating device based on the heat exchange of double-chamber as claimed in claim 2, characterized in that, The flow direction of the tail gas in the tail gas heat exchange unit is opposite to the flow direction of the cooling liquid in the cooling liquid heat exchange unit; In the heat exchanger, the flow direction of the tail gas of the air side heat exchange unit is opposite to the flow direction of the cooling liquid of the cooling liquid side heat exchange unit.

4. The alcohol heating device based on the heat exchange of double-chamber as claimed in claim 2, wherein, The volatile atomization system is arranged in the methanol fuel heater and located in a pipeline between the methanol water solution pipeline and the combustion chamber.

5. The alcohol heating device based on double-chamber heat exchange according to claim 1, wherein The methanol feeding port of the methanol fuel heater is connected with the methanol water solution storage tank through the methanol feeding pump; The cooling liquid inlet of the cooling liquid heat exchange unit of the heat exchanger is connected with the cooling liquid storage tank through the cooling liquid pump; The tail gas inlet of the heat exchanger is connected with the tail gas outlet of the combustion chamber through a high-temperature resistant conversion head; The tail gas outlet of the heat exchanger is connected with the air inlet of the air side heat exchange unit of the heat exchanger through a high-temperature resistant conversion head.

6. The alcohol heating device based on double-chamber heat exchange according to claim 5, wherein The tail gas inlet of the heat exchanger is connected to the tail gas outlet of the combustion chamber by a high-temperature-resistant adapter, and the sealing mode adopts a high-temperature-resistant sealing ring. The tail gas outlet of the heat exchanger is connected to the air inlet of the air-side heat exchange unit of the heat exchanger by a high-temperature-resistant adapter, and the sealing mode adopts a high-temperature-resistant sealing ring.

7. The alcohol heating device based on double-chamber heat exchange according to claim 2, characterized in that, In the integral heat preservation process, the integral body includes a pipeline and an electrical circuit connecting various components.

8. The alcohol heating device based on double-chamber heat exchange according to claim 2 or 7, characterized in that, The heat preservation material used in the heat preservation component includes heat preservation cotton or a heat insulation sleeve. The concentration of the methanol aqueous solution is 30-100%vol.

9. The alcohol heating device based on double-chamber heat exchange according to any one of claims 1-7, characterized in that, The voltage of the methanol fuel heater is DC 12-220 V, the input power is 30-1000 W, and the output power is 1-10 kW.

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