Heating system and railway vehicle

Abstract

The utility model discloses a heating system and a railway vehicle, and the heating system comprises a boiler which is internally provided with a water storage chamber and a combustion chamber; a water inlet of the expansion water tank is connected with a water outlet of the water storage chamber; at least part of the circulating pipeline is used for being arranged in a heating area, one end of the circulating pipeline is connected with a water outlet of the expansion water tank, and the other end of the circulating pipeline is connected with a water inlet of the water storage chamber; and the hand pump is arranged between the circulating pipeline and the boiler and used for pumping water in the circulating pipeline into the boiler. The boiler is used for heating water, the expansion water tank and the circulation pipeline are used for conveying the hot water to the heating area for heating, the hand pump is used for providing power to improve the hot water circulation efficiency, then the heating efficiency is improved, the temperature in a compartment can be guaranteed in extreme weather in extremely cold areas, and the heating system can be normally used without a power source.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of railway transportation, and particularly relates to a heating system and a railway vehicle. BACKGROUND

[0002] In the northern extremely cold conditions, the personnel living environment on the railway vehicle has a higher demand for heating, and the heating effect of the general heating equipment is poor in the extremely cold weather, and even there is a phenomenon that it is difficult to start. Therefore, a heating system is urgently needed to improve the living environment of the railway vehicle in the extremely cold weather. CONTENT OF THE UTILITY MODEL

[0003] The present application aims to at least solve one of the technical problems existing in the prior art. To this end, the present application provides a heating system and a railway vehicle, which has a good and stable heating effect and can guarantee the heating demand of personnel on the railway vehicle in the extremely cold weather.

[0004] In a first aspect, the present application provides a heating system, comprising:

[0005] a boiler, the boiler being provided with a water storage chamber and a combustion chamber;

[0006] an expansion water tank, a water inlet of the expansion water tank being connected with a water outlet of the water storage chamber;

[0007] a circulation pipeline, at least a part of the circulation pipeline being arranged in a heating area, one end of the circulation pipeline being connected with a water outlet of the expansion water tank, and the other end being connected with a water inlet of the water storage chamber;

[0008] a hand pump, which is arranged between the circulation pipeline and the boiler and is used for pumping water in the circulation pipeline into the boiler.

[0009] According to the heating system of the present application, hot water is heated by the boiler, the hot water is delivered to the heating area by the expansion water tank and the circulation pipeline to provide heating, the hand pump is used to provide power to improve the hot water circulation efficiency, and thus the heating efficiency is improved. In the extremely cold weather in the extremely cold area, the temperature in the carriage can also be guaranteed, and the heating system can also be normally used without power supply.

[0010] According to an embodiment of the present application, the expansion water tank is arranged close to the upper end of the boiler, and the water inlet of the expansion water tank is higher than the water outlet.

[0011] According to an embodiment of the present application, the bottom of the expansion water tank is connected with a water supplement pipe, a drain pipe and an overflow pipe penetrating into the expansion water tank, the pipe openings of the water supplement pipe and the overflow pipe in the expansion water tank are located on the upper side of the pipe opening of the drain pipe in the expansion water tank, and the pipe opening of the drain pipe in the expansion water tank is located on the upper side of the water inlet and the water outlet of the expansion water tank.

[0012] According to one embodiment of the present application, the expansion water tank is provided with a support, and the water supplement pipe, the water discharge pipe and the overflow pipe are all connected with the support.

[0013] According to one embodiment of the present application, the top of the expansion water tank is provided with an exhaust port, and the exhaust port is connected with the upper part of the water storage chamber.

[0014] According to one embodiment of the present application, the circulation pipeline comprises:

[0015] a water supply pipe, one end of which is connected with the water outlet of the expansion water tank;

[0016] a plurality of heat dissipation pipes, which are arranged in the heating area, and the plurality of heat dissipation pipes are connected with the other end of the water supply pipe through the distribution joint;

[0017] a water return pipe, one end of which is connected with the plurality of heat dissipation pipes through the distribution joint, and the other end of which is connected with the water inlet of the water storage chamber.

[0018] According to one embodiment of the present application, the heating system further comprises:

[0019] a water discharge valve, which is arranged outside the vehicle compartment, and the water discharge valve is connected with the water return pipe through the tee joint;

[0020] a protective cover, which is arranged outside the water discharge valve, and the protective cover is provided with heat preservation material inside.

[0021] According to one embodiment of the present application, the water storage chamber is arranged outside the combustion chamber, the top of the combustion chamber is provided with a smoke exhaust port, and the water storage chamber is connected with a liquid level gauge and a temperature gauge outside.

[0022] According to one embodiment of the present application, the combustion chamber is provided with a feeding port and a slag discharge port, and the slag discharge port is located at the lower side of the feeding port.

[0023] The bottom of the boiler is provided with a base, and the base is provided with a slag discharge pipe, and the lower end of the slag discharge pipe is bent. In a second aspect, the present application provides a railway vehicle comprising the heating system according to any one of the first aspect.

[0024] The railway vehicle provided by the second aspect of the present application has the same beneficial effects as the heating system provided by the first aspect of the present application, which will not be described here again.

[0025] Additional aspects and advantages of the present application will be partially given in the following description, partially will become obvious from the following description, or will be understood by the practice of the present application. BRIEF DESCRIPTION OF DRAWINGS

[0026] The above and / or additional aspects and advantages of the present application will become apparent and more readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings, in which:

[0027] Figure 1is a structural schematic diagram of a heating system provided by an embodiment of the present application;

[0028] Figure 2 is another structural schematic diagram of a heating system provided by an embodiment of the present application;

[0029] Figure 3 is a partial sectional structural schematic diagram of a heating system provided by an embodiment of the present application;

[0030] Figure 4 is a connection structural schematic diagram of an expansion water tank, a water supplement pipe, a water discharge pipe and an overflow pipe provided by an embodiment of the present application;

[0031] Figure 5 is another connection structural schematic diagram of an expansion water tank, a water supplement pipe, a water discharge pipe and an overflow pipe provided by an embodiment of the present application;

[0032] Figure 6 is another connection structural schematic diagram of an expansion water tank, a water supplement pipe, a water discharge pipe and an overflow pipe provided by an embodiment of the present application;

[0033] Figure 7 is another partial sectional structural schematic diagram of a heating system provided by an embodiment of the present application;

[0034] Figure 8 is an assembly structural perspective view of a water discharge valve and a protective cover provided by an embodiment of the present application.

[0035] Reference signs:

[0036] 100, heating system; 1, boiler; 11, combustion chamber; 111, smoke outlet; 112, feeding port; 113, slag outlet; 12, water storage chamber; 13, liquid level meter; 14, temperature meter; 2, expansion water tank; 21, water inlet of the expansion water tank; 22, water outlet of the expansion water tank; 23, water supplement pipe; 24, water discharge pipe; 25, overflow pipe; 26, support; 27, exhaust port; 3, circulating pipeline; 31, water feeding pipe; 32, heat dissipation pipe; 33, water return pipe; 34, branch joint; 4, hand pump; 5, water receiving box; 6, water discharge valve; 7, protective cover; 8, base; 81, slag discharging pipe. DETAILED DESCRIPTION

[0037] Embodiments of the present application are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference signs represent the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the accompanying drawings are exemplary and are only used to explain the present application, and cannot be understood as a limitation of the present application.

[0038] The personnel living environment on the railway vehicle has a higher heating demand under the extremely cold conditions in the north. The general heating equipment has a poor heating effect under the extremely cold weather, and even has a phenomenon of being difficult to start. Therefore, a heating system is urgently needed to improve the living environment of the railway vehicle under the extremely cold weather.

[0039] In the related art, some vehicles use a diesel generator to generate power for a heater, and some vehicles use a Samp furnace to heat water for heating. The diesel generator power heating technology has a disadvantage of dependence on electricity. Once the diesel is used up or the power generation system fails, the electric heater cannot provide heating. The Samp furnace heating water heating technology has a disadvantage of insufficient heating power, which cannot meet the temperature requirements of the personnel in the compartment under the extremely cold conditions.

[0040] Based on the above considerations, the present application provides a heating system and a railway vehicle, which has good and stable heating effect and can meet the heating demand of personnel on the railway vehicle under the extremely cold weather.

[0041] Hereinafter Figures 1-8 The heating system and the railway vehicle according to the embodiments of the present application are described.

[0042] Please refer to Figure 1 , Figure 2 and Figure 3 The heating system 100 provided by the embodiments of the present application includes a boiler 1, an expansion water tank 2, a circulating pipeline 3 and a hand pump 4.

[0043] The boiler 1 is provided with a water storage chamber 12 and a combustion chamber 11. The water inlet 21 of the expansion water tank is connected with the water outlet of the water storage chamber 12. At least part of the circulating pipeline 3 is arranged in the heating area. One end of the circulating pipeline 3 is connected with the water outlet 22 of the expansion water tank, and the other end is connected with the water inlet of the water storage chamber 12. The hand pump 4 is arranged between the circulating pipeline 3 and the boiler 1, and is used to pump the water in the circulating pipeline 3 into the boiler 1.

[0044] The boiler 1 is the core part of the heating system 100, and is provided with a water storage chamber 12 and a combustion chamber 11. The water storage chamber 12 is used to store heating water, and the combustion chamber 11 is used to add combustible fuel to heat the heating water in the water storage chamber 12.

[0045] The expansion water tank 2 is connected with the water storage chamber 12 of the boiler 1. Specifically, the water inlet 21 of the expansion water tank is connected with the water outlet of the water storage chamber 12. The expansion water tank 2 can accommodate the water volume expanded due to the temperature rise. The heating water in the water storage chamber 12 expands into the expansion water tank 2 after being heated, so as to prevent the system pressure from being too high.

[0046] The circulation pipeline 3 is arranged at least partially in the heating area, and is used to deliver the heated water to each part of the vehicle that needs heating. One end of the circulation pipeline 3 is connected with the water outlet 22 of the expansion water tank, and the hot water in the expansion water tank 2 is delivered into the circulation pipeline 3 through the water outlet. The other end of the circulation pipeline 3 is connected with the water inlet of the water storage chamber 12, and the hot water circulates in the circulation pipeline 3 to form a closed loop.

[0047] The hand pump 4 is arranged between the circulation pipeline 3 and the boiler 1, and is used to manually pump the water in the circulation pipeline 3 into the boiler 1 when the system starts or the circulation is blocked, so as to ensure the normal operation of the water circulation, and improve the water circulation efficiency and the heating efficiency.

[0048] In actual implementation, the fuel is ignited in the combustion chamber 11 to heat the water in the water storage chamber 12. With the heating of the water, the pressure in the water storage chamber 12 gradually increases, and the volume of the hot water expands into the expansion water tank 2. The expansion water tank 2 is used to accommodate the water expanded due to heating, and prevent the system pressure from being too high. The hot water in the expansion water tank 2 is delivered to the heating area through the circulation pipeline 3. After the hot water releases heat in the heating area, the cooled water returns to the water storage chamber 12 through the circulation pipeline 3 to be heated again. In the initial stage of system starting or when the circulation is blocked, the hand pump 4 is used to pump the water in the circulation pipeline 3 into the boiler 1, so as to ensure the continuity of the water circulation and the normal operation of the system. The water temperature in the water storage chamber 12 is controlled by adjusting the fuel supply amount of the combustion chamber 11, so as to meet different heating requirements.

[0049] The boiler 1 heats the water in the water storage chamber 12 by burning fuel, is not limited by power supply, and quickly delivers heat to the whole vehicle through the circulation pipeline 3. The design of the expansion water tank 2 ensures that the system can maintain stable water circulation in extremely cold weather. The design of the hand pump 4 enables the water circulation to be manually maintained when the power supply is unstable or the system circulation is blocked. The heating system 100 is suitable for various extremely cold weather conditions, and ensures that the heating requirements of the personnel on the railway vehicle are met.

[0050] According to the heating system 100 of the embodiment of the present application, the water is heated by the boiler 1, the hot water is delivered to the heating area through the expansion water tank 2 and the circulation pipeline 3 to provide heating, the hand pump 4 is used to provide power to improve the water circulation efficiency, and then the heating efficiency is improved. In extremely cold areas, the temperature in the vehicle compartment can also be ensured in extremely cold weather, and the heating system 100 can also be normally used without power supply.

[0051] Please refer to Figures 3 to 6 According to some embodiments of the present application, the expansion water tank 2 can be arranged close to the upper end of the boiler 1, and the water inlet 21 of the expansion water tank can be higher than the water outlet.

[0052] The expansion tank 2 is arranged close to the upper end of the boiler 1, which helps to utilize gravity to assist water circulation and reduce the energy required for pumping. The expansion tank 2, as the highest point of the system and directly connected with the atmosphere, has a certain system exhaust function. The higher water inlet helps to discharge air and reduce air resistance and cavitation in the system. In addition, the arrangement of the expansion tank 2 close to the upper end of the boiler 1 also helps to reduce the length and complexity of the pipeline, thereby reducing the installation and maintenance cost of the system.

[0053] The higher water inlet can ensure that the expansion tank 2 can better absorb and release water when the water pressure of the system changes, thereby reducing the pressure fluctuation of the system. It helps to introduce excess water into the expansion tank 2 when the water volume of the system expands, thereby avoiding excessive system pressure. The higher water inlet can also reduce the suction side pressure of the water pump, thereby reducing the risk of water pump cavitation.

[0054] The heating system 100 improves the efficiency and stability of the heating system 100 by arranging the expansion tank 2 close to the upper end of the boiler 1 and designing the water inlet higher than the water outlet, so that it can reliably meet the heating needs of the personnel on the railway vehicle in extremely cold weather.

[0055] Please refer to Figures 3 to 6 According to some embodiments of the present application, the bottom of the expansion tank 2 can be connected with a water replenishment pipe 23, a drain pipe 24 and an overflow pipe 25 penetrating into the expansion tank 2. The pipe openings of the water replenishment pipe 23 and the overflow pipe 25 in the expansion tank 2 are located above the pipe opening of the drain pipe 24 in the expansion tank 2, and the pipe opening of the drain pipe 24 in the expansion tank 2 is located above the water inlet 21 and the water outlet of the expansion tank.

[0056] The other end of the water replenishment pipe 23 is connected with a water source. When the water volume in the heating system 100 is insufficient, water can be replenished into the entire heating system 100 through the water replenishment pipe 23. The replenished cold water mixes with the hot water in the expansion tank 2, which has little effect on the heating efficiency of the system and improves the use stability of the heating system 100. Moreover, because the pipe opening of the water replenishment pipe 23 is higher than the pipe opening of the drain pipe 24 and the water inlet 21 and the water outlet of the expansion tank, the cold water replenished by the water replenishment pipe 23 is replenished from the top of the liquid surface, which facilitates the mixing of cold and hot water and has little effect on the hot water at the bottom of the tank. When replenishing water, it has little effect on the hot water in the circulating pipeline 3, and there is no large fluctuation of temperature. A valve can be provided on the water replenishment pipe 23 to control the opening and closing of the water replenishment pipe 23.

[0057] The drain pipe 24 can discharge excess water generated after the expansion volume of the hot water in the system increases, avoiding excessive system pressure. The pipe opening of the drain pipe 24 is arranged slightly lower to facilitate the drainage of the drain pipe 24. The other end of the drain pipe 24 is connected with the outside, and a valve can be provided on the drain pipe 24 to control the opening and closing of the drain pipe 24 to control the active drainage of the drain pipe 24.

[0058] The overflow pipe 25 can be used to discharge excess water and steam generated after the water is boiled, to avoid excessive system pressure. The other end of the overflow pipe 25 is in communication with the outside atmosphere. During the initial start-up of the heating system 100, water is supplied to the heating system 100 through the water supply pipe 23, and the upper limit of the system liquid level is controlled through the overflow pipe 25. After the water is boiled, a large amount of steam is generated, and the valve can be opened to discharge water through the drain pipe 24. When the liquid level drops to the height of the drain pipe 24, the steam can be quickly discharged through the overflow pipe 25, ensuring the efficiency of water and steam discharge, and thus ensuring the stability of the entire system.

[0059] In some examples, the height of the overflow pipe 25 can be flush with the height of the water supply pipe 23.

[0060] In actual implementation, during the initial start-up of the heating system 100, the water temperature is low, and water is supplied to the entire system through the water supply pipe 23. At this time, the valve of the drain pipe 24 is in a closed state. When the water supply pipe 23 supplies the liquid level to the position of the overflow pipe 25, the water supply is stopped. When the water in the heating system 100 expands and generates steam as the temperature rises, the pressure in the system rises sharply, and the efficiency of water and steam discharge through the overflow pipe 25 is low. The valve is opened to discharge the excess water generated by the expansion through the drain pipe 24. The water level in the expansion tank 2 drops, so that the water vapor in the upper part can be discharged through the overflow pipe 25, to ensure the stability of the internal pressure of the heating system 100.

[0061] Please refer to Figure 2 and Figure 3 In some embodiments, the drain pipe 24 and the overflow pipe 25 both extend in the height direction, and the lower ends of the drain pipe 24 and the overflow pipe 25 are provided with a water receiving box 5. The bottom of the water receiving box 5 is connected to a pipe that communicates to the outside of the vehicle. The water discharged through the drain pipe 24 and the overflow pipe 25 can be discharged to the outside of the vehicle through the pipe.

[0062] Please refer to Figures 3 to 6 According to some embodiments of the present application, the expansion tank 2 can be provided with a support 26, and the water supply pipe 23, the drain pipe 24 and the overflow pipe 25 can be connected to the support 26.

[0063] The water supply pipe 23, the drain pipe 24 and the overflow pipe 25 are connected to the support 26. This connection mode can ensure that the position of the pipe in the expansion tank 2 is fixed, to prevent the pipe from falling off or being damaged due to water flow impact or system pressure change. The design of the support 26 can also provide sufficient strength and stability to withstand various stresses during system operation.

[0064] In some embodiments, the support 26 can be a structural framework inside the expansion tank 2 that not only supports the pipes but also serves as a reinforcement structure inside the expansion tank 2, improving the overall stability and pressure resistance of the tank. The design of the support 26 can also include sealing structures at the pipe connections to ensure that the connections between the pipes and the tank are well sealed to prevent water leakage. This is crucial for maintaining the efficiency and safety of the heating system 100. In addition, the support 26 can also be designed to facilitate pipe maintenance and replacement, so that when necessary, the pipes can be quickly disassembled for repair or replacement without damaging the entire expansion tank 2.

[0065] In some examples, taking the expansion tank 2 as a square, the support 26 can be a cross-shaped support plate extending in the horizontal direction, with the four ends of the support plate connected to the four side walls of the expansion tank 2, providing stable structure and good support effect.

[0066] Referring to Figures 4 to 7 , according to some embodiments of the present application, the top of the expansion tank 2 can be provided with an exhaust port 27, which can be connected to the upper part of the water storage chamber 12.

[0067] After the water temperature in the water storage chamber 12 rises, water vapor will accumulate at the top of the water storage chamber 12. By connecting the exhaust port 27 of the expansion tank 2 to the upper part of the water storage chamber 12, the water vapor in the water storage chamber 12 can be discharged through the overflow pipe 25 in the expansion tank 2.

[0068] By providing an exhaust port 27 at the top of the expansion tank 2, it helps to vent air in the system, reducing the impact of air retention on heat exchange efficiency, and also ensures that steam or air generated during the heating process can be promptly discharged, avoiding the formation of air resistance and affecting water circulation. It can also prevent equipment damage or safety accidents caused by excessive pressure. In addition, the design of the exhaust port 27 can also reduce the noise and vibration of the system, as the rapid discharge of steam can reduce pressure fluctuations during water circulation, thereby reducing the operating noise of the system.

[0069] Referring to Figures 1 to 3 and Figure 7 , according to some embodiments of the present application, the circulation pipeline 3 can include a feed pipe 31, a return pipe 33, and a plurality of heat dissipation pipes 32. One end of the feed pipe 31 is connected to the water outlet 22 of the expansion tank, the plurality of heat dissipation pipes 32 are arranged in the heating area, the plurality of heat dissipation pipes 32 are connected to the other end of the feed pipe 31 through a distribution junction 34, one end of the return pipe 33 is connected to the plurality of heat dissipation pipes 32 through the distribution junction 34, and the other end of the return pipe 33 is connected to the water inlet of the water storage chamber 12.

[0070] The water supply pipe 31 is connected to the water outlet 22 of the expansion tank at one end, and is used to transport hot water from the expansion tank 2 to the heat dissipation pipes 32 in the heating area. The water supply pipe 31 can be adjusted according to the needs of the heating system 100 and the layout of the heating area to ensure stable supply of hot water.

[0071] A plurality of heat dissipation pipes 32 are arranged in the heating area and connected to the other end of the water supply pipe 31 through a distribution junction 34. The design of the distribution junction 34 allows hot water to be evenly distributed to each heat dissipation pipe 32, improving the uniformity of heating. The design and layout of the heat dissipation pipes 32 can be optimized according to the specific needs of the heating area to ensure that heat can be effectively dissipated to the entire space.

[0072] In some examples, heat dissipation fins can be connected to the outside of the heat dissipation pipes 32 to further increase the heat dissipation area, and heat dissipation covers can also be provided on the outside of the heat dissipation pipes 32 to improve aesthetics while providing some protection for the heat dissipation pipes 32.

[0073] The return pipe 33 is connected to the plurality of heat dissipation pipes 32 through the distribution junction 34 at one end, and is connected to the water inlet of the water storage chamber 12 at the other end. The cooled water can flow back from the heat dissipation pipes 32 to the water storage chamber 12, ready to be heated again. The use of the distribution junction 34 also helps to ensure the uniformity and efficiency of the return of water.

[0074] In some embodiments, the distribution junction 34 can be adjustable to accommodate different configurations of heat dissipation pipes 32 and water flow requirements. This adjustable design can be achieved through valves, swivel joints or other mechanical adjustment mechanisms to ensure balance of water flow and pressure.

[0075] Please refer to Figure 8 According to some embodiments of the present application, the heating system 100 can also include a drain valve 6 and a protective cover 7. The drain valve 6 is arranged outside the vehicle cabin, and the drain valve 6 is connected to the return pipe 33 through a three-way junction. The protective cover 7 is provided outside the drain valve 6, and the protective cover 7 is provided with thermal insulation material.

[0076] The drain valve 6 can quickly and safely drain the water in the return pipe 33 in case of system maintenance or emergency, avoiding water damage to the internal facilities of the vehicle cabin due to system failure. The position of the drain valve 6 can be the lowest point of the water circulation of the entire heating system 100, and the water in the heating system 100 can be drained by opening the drain valve 6.

[0077] The design of the drain valve 6 can be manual or automatic to adapt to different operation requirements. The manual drain valve 6 can be controlled by rotating the handle or lever, while the automatic drain valve 6 can be controlled by electronic or pneumatic systems for remote operation. The form of the drain valve 6 is not limited and can be a ball valve, butterfly valve, gate valve, etc.

[0078] The protective cover 7 is provided with thermal insulation material, which protects the drain valve 6 from extremely cold weather, prevents the valve body from freezing or being damaged, and ensures that the drain valve 6 can work normally under any weather conditions. The thermal insulation material in the protective cover 7 can be rock wool, polystyrene foam or other suitable thermal insulation materials, which can effectively insulate and maintain the temperature inside the protective cover 7 to prevent the internal structure from freezing.

[0079] In some examples, the design of the protective cover 7 can also include waterproof and moisture-proof measures to ensure the reliability of the drain valve 6 under severe weather conditions. The protective cover 7 can be made of metal or plastic, and the surface can be coated with waterproof paint or designed with a sealing design to prevent water from entering.

[0080] Please refer to Figure 3 and Figure 7 According to some embodiments of the present application, the water storage chamber 12 can be arranged around the combustion chamber 11, and the top of the combustion chamber 11 is provided with a smoke outlet 111, and the water storage chamber 12 is connected with a liquid level gauge 13 and a temperature gauge 14.

[0081] The water storage chamber 12 is arranged around the combustion chamber 11, specifically, the boiler 1 can include an outer shell and an inner cylinder, the inner cylinder is the combustion chamber 11, and the part between the inner cylinder and the outer shell is the water storage chamber 12. The water storage chamber 12 is located at the upper position of the combustion chamber 11, so that the water storage chamber 12 can fully utilize the heat generated by the combustion chamber 11, while protecting the water storage chamber 12 from being directly affected by high temperature, ensuring the safe and stable operation of the system.

[0082] The top of the combustion chamber 11 can be provided with a smoke outlet 111 for discharging the flue gas generated by combustion outside the boiler 1. The design of the smoke outlet 111 can include a flue and a chimney to ensure smooth discharge of flue gas, reduce pollution to the environment, and reduce the pressure inside the boiler 1.

[0083] The water storage chamber 12 can be connected with a liquid level gauge 13 and a temperature gauge 14, and the setting of these instruments enables the operator to monitor the water level and temperature in the water storage chamber 12 in real time, which is crucial for ensuring the safe operation and efficiency of the heating system 100. The liquid level gauge 13 can be mechanical or electronic, which can directly display the water level in the water storage chamber 12, preventing dry burning of the boiler 1 due to low water level or overflow due to high water level. The temperature gauge 14 can be a thermocouple, a thermal resistor or other temperature sensor, which can accurately measure the water temperature in the water storage chamber 12, ensuring that the heating system 100 operates at an appropriate temperature, avoiding overheating or insufficient temperature.

[0084] Please refer to Figure 3 and Figure 7According to some embodiments of the present application, the combustion chamber 11 can be provided with a fuel inlet 112 and a slag outlet 113, and the slag outlet 113 is located below the fuel inlet 112. The bottom of the boiler 1 can be provided with a base 8, and the base 8 is provided with a slag discharge pipe 81, and the lower end of the slag discharge pipe 81 is bent.

[0085] The fuel of the boiler 1 can be solid fuel such as coal, which is stable in supply, safe in combustion, and not easily affected by extremely cold weather.

[0086] The combustion chamber 11 is provided with a fuel inlet 112 and a slag outlet 113, so that the addition of fuel and the discharge of ash can be carried out at different ports respectively, improving the safety and convenience of operation. The design of the fuel inlet 112 allows the operator to conveniently add fuel, and the slag outlet 113 facilitates the removal of ash generated after combustion.

[0087] The slag outlet 113 is located below the fuel inlet 112, and this layout helps to utilize gravity to assist in the discharge of ash. When the boiler 1 is running, the ash generated by combustion can naturally fall through the slag outlet 113, reducing the labor intensity of manual cleaning.

[0088] The bottom of the boiler 1 is provided with a base 8, which can be used to carry the ash discharged from the slag outlet 113, and the base 8 is provided with a slag discharge port, and the bottom of the slag discharge port is connected with a slag discharge pipe 81. The slag discharge pipe 81 allows the ash to be discharged from the inside of the carriage to the outside of the carriage, simplifying the slag discharge operation, improving the ash discharge efficiency, and avoiding the accumulation of ash in the boiler 1 and the carriage. The lower end of the slag discharge pipe 81 is bent, specifically, the slag discharge pipe 81 is bent outward along the lateral direction of the vehicle, so that the ash can be directly discharged to the two sides of the carriage, i.e. the two sides of the track, through the slag discharge pipe 81, the slag discharge work is simple and easy to recover, and has little effect on the track.

[0089] The present application also provides a railway vehicle, which comprises the heating system 100 according to any one of the above technical solutions.

[0090] The railway vehicle of the present application can be a freight vehicle or a passenger vehicle, and the specific type is not limited.

[0091] It can be understood that, because the railway vehicle of the present application comprises the heating system 100 according to any one of the above technical solutions, it has the technical features and advantages of the heating system 100 according to any one of the above technical solutions, which will not be repeated here.

[0092] The terms "first", "second", and the like in the description and in the claims of the present application are used for distinguishing between similar objects and not necessarily for describing a specific sequential or chronological order. It is to be understood that the use of the terms so construed can inter-change, such that "first" and "second" are interchangeable with "second" and "first", respectively, and vice versa. The ordinal numbers to designate the objects are used to distinguish the objects in a specific embodiment and are not intended to designate a certain sequence or order, unless otherwise specified. The ordinal numbers are used for the purpose of distinguishing a certain feature of an implementation from other features, unless otherwise specified. It is to be understood that the terms "comprising", "including", "incorporating", "consisting of", "consisting essentially of", and the like specify the presence of stated features, integers, steps, or components but do not preclude the presence or addition of one or more other features, integers, steps, components, or groups thereof. The terms "a", "an", and the like denote one or more instances. The terms "plurality" and "a plurality" mean two or more.

[0093] In the description of the present application, it is to be understood that the terms "central", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counter-clockwise", "axial", "radial", "circumferential" and the like are used to indicate the orientation or position of one element or feature relative to another element or feature, and are not intended to denote specific orientation of the device or element in use or in operation, and are not intended to limit the position or orientation of the device or element in use or in operation, and are not intended to limit the position or orientation of the device or element in use or in operation, and are not intended to limit the device or element to the specific position or orientation described in the description, unless otherwise specified.

[0094] In the description of the present application, "first feature" and "second feature" can include one or more of the features.

[0095] In the description of the present application, "a plurality" means two or more.

[0096] In the description of the present application, "on", "above", and "on top" of a first feature relative to a second feature can include that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact through another feature between them.

[0097] In the description of the present application, "on", "above", and "on top" of a first feature relative to a second feature can include that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact through another feature between them.

[0098] In the description of the present application, the description of the terms "one embodiment", "some embodiments", "certain embodiments" or "exemplary embodiments" and the like means that a particular feature, structure, material or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present application. The appearances of the phrases "in one embodiment", "in some embodiments", "in certain embodiments" or "in some examples" in various places in the specification are not necessarily referring to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics can be combined in any suitable manner in one or more embodiments or examples.

[0099] While the embodiments of the application have been shown and described, it is to be understood that the embodiments can be varied, modified, substituted and changed by those skilled in the art without departing from the principles and spirit of the application, the scope of which is defined by the claims and their equivalents.

Claims

1. A heating system, characterized in that: include: Boiler, which has a water storage chamber and a combustion chamber; an expansion water tank, wherein the water inlet of the expansion water tank is connected to the water outlet of the water storage chamber; a circulation pipeline, at least a portion of which is arranged in a heating area, one end of the circulation pipeline being connected to the water outlet of the expansion water tank, and the other end being connected to the water inlet of the water storage chamber; A hand pump is provided between the circulation pipeline and the boiler, and is used for pumping water in the circulation pipeline into the boiler.

2. The heating system according to claim 1, characterized in that The expansion water tank is arranged close to the upper end of the boiler, and the water inlet of the expansion water tank is higher than the water outlet.

3. The heating system according to claim 2, characterized in that The bottom of the expansion water tank is connected to a water supply pipe, a drain pipe and an overflow pipe that penetrate into the expansion water tank. The pipe openings of the water supply pipe and the overflow pipe in the expansion water tank are located above the pipe opening of the drain pipe in the expansion water tank, and the pipe opening of the drain pipe in the expansion water tank is located above the water inlet and water outlet of the expansion water tank.

4. The heating system according to claim 3, characterized in that A support member is provided in the expansion water tank, and the water supply pipe, the drain pipe and the overflow pipe are all connected to the support member.

5. The heating system according to claim 3, characterized in that The top of the expansion water tank is provided with an exhaust port, and the exhaust port is connected to the upper part of the water storage chamber.

6. The heating system according to claim 1, characterized in that The circulation pipeline comprises: a water supply pipe, one end of which is connected to the water outlet of the expansion water tank; A plurality of heat dissipation pipes are arranged in the heating area, and the plurality of heat dissipation pipes are connected to the other end of the water supply pipe via a manifold; The return water pipe has one end connected to the plurality of heat dissipation pipes through a manifold joint, and the other end connected to the water inlet of the water storage chamber.

7. The heating system according to claim 6, characterized in that Also includes: A drain valve is provided outside the vehicle compartment, and the drain valve is connected to the return pipe via a three-way joint; A protective cover is arranged outside the drain valve, and a heat-insulating material is arranged inside the protective cover.

8. The heating system according to any one of claims 1 to 7, characterized in that: The water storage chamber is arranged outside the combustion chamber, a smoke exhaust port is provided on the top of the combustion chamber, and a liquid level meter and a temperature meter are connected to the outside of the water storage chamber.

9. The heating system according to any one of claims 1 to 7, characterized in that: The combustion chamber is provided with a feed port and a slag outlet, and the slag outlet is located below the feed port; A base is provided at the bottom of the boiler, and a slag discharge pipe is provided on the base. The lower end of the slag discharge pipe is bent.

10. A railway vehicle, characterized in that: The heating system comprises the heating system according to any one of claims 1 to 9.

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