Multi-tube heat accumulating type biomass steam generator

Abstract

The utility model provides a multi-tube heat accumulating type biomass steam generator, and belongs to the technical field of steam generators. Comprising a steam generator body, the steam generator body is divided into a hearth and a containing cavity through a partition plate, a heat storage mechanism is placed in the containing cavity, and the heat storage mechanism comprises a heat storage box, a plurality of electric heating pipes, a first fan, a plurality of first communicating pipes, a heat storage cavity and a flange plate; and the first communicating pipe is communicated with the heat storage cavity. Through the arrangement of the plurality of electric heating pipes, the plurality of first communicating pipes, the heat storage cavity and the flange plate, when in use, the heat exchange area is increased, the absorption and release efficiency of heat energy is improved, and the storage and output of heat can be effectively balanced and adjusted, so that the stability of steam supply can be kept when the system load fluctuates, and the energy consumption is reduced. Energy loss is reduced, energy conservation and emission reduction are achieved, the operation cost is reduced, and the current requirement for environmental protection is met.

Description

Technical Field

[0001] The utility model relates to the technical field of steam generators, in particular to a multi-tube heat storage type biomass steam generator. Background Art

[0002] A steam generator, also called a steam heat source machine, is a mechanical device that uses the thermal energy of fuel or other energy sources to heat water into hot water or steam. The original meaning of a pot refers to a water container heated on fire, and a furnace refers to a place where fuel is burned. A boiler consists of two major parts: a pot and a furnace. A steam generator is a mechanical device that uses the thermal energy of fuel or other energy sources to heat water into hot water or steam. A steam boiler is sometimes called a steam generator, and is an important part of a steam power plant. Power station boilers, steam turbines, and generators are the main machines of thermal power stations. Therefore, power station boilers are important equipment for producing electricity. Industrial boilers are indispensable equipment for providing steam required for production and heating in various industrial enterprises. There are many industrial boilers, which consume a lot of fuel. Waste heat boilers that use high-temperature exhaust gas from the production process as a heat source play an important role in energy conservation.

[0003] In existing steam generators, heat energy is stored and released through a single pipe. When encountering large-scale industrial applications or situations with high requirements for steam stability and efficiency, the single-tube thermal storage type may not be able to meet the needs. When a multi-tube thermal storage steam generator is used, not only the heat exchange area is increased, the absorption and release efficiency of heat energy is improved, but also the stability of the system is enhanced. When the system load fluctuates, the multi-tube thermal storage steam generator can provide steam more stably because it can more effectively balance and regulate the storage and output of heat. In addition, the multi-tube thermal storage steam generator helps to reduce energy loss and achieve energy conservation and emission reduction during design and operation. Therefore, the present application provides a multi-tube thermal storage biomass steam generator to meet the needs. Utility Model Content

[0004] The technical problem to be solved by the utility model is to provide a multi-tube heat storage biomass steam generator to solve the problem that in the existing steam generator, heat energy is stored and released through a single pipeline. When encountering large-scale industrial applications or situations with high requirements on steam stability and efficiency, the single-tube heat storage type may not be able to meet the needs.

[0005] To solve the above technical problems, the utility model provides the following technical solutions: a multi-tube heat storage biomass steam generator, comprising a steam generator body, the steam generator body is divided into a furnace and a accommodating chamber by a partition, a heat storage mechanism is placed in the accommodating chamber, the heat storage mechanism comprises a heat storage box, a plurality of electric heating tubes, a first fan, a plurality of first connecting tubes, a heat storage chamber and a flange, the air outlet end of the first fan is connected to the plurality of first connecting tubes, the first connecting tube is connected to the heat storage chamber, and the plurality of electric heating tubes are connected to the heat storage box through a flange.

[0006] The accommodating chamber is equipped with a first water tank, a second water tank and a preheating tank, a steam-water separator is installed in the second water tank, the top of the steam-water separator is connected with an air outlet pipe, and the first water tank is connected with the second water tank through a second connecting pipe.

[0007] The furnace chamber is divided into an inner wall and an outer wall, a hollow structure is formed between the inner wall and the outer wall, a heat insulating structure is arranged in the hollow structure, and the heat insulating structure includes an aluminum silicate wool layer, a rock wool layer and a nano-ceramic layer arranged in sequence from the inner wall to the outer wall.

[0008] A plurality of instruments are arranged on the top of the steam generator body, and the instruments include a pressure detector, a temperature detector, a liquid level detector and an alarm.

[0009] An ash storage frame is placed at the bottom of the furnace inner cavity, a biomass feed port is opened on the side of the steam generator body, and a sealing door is arranged at the biomass feed port.

[0010] The top of the steam generator body is connected with a water inlet pipe, and one end of the water inlet pipe passes through the steam generator body and is connected with the preheating box.

[0011] A controller is arranged on the surface of the steam generator body, and the controller comprises a backlight display screen and control buttons.

[0012] Compared with the prior art, the utility model has at least the following beneficial effects: in the above scheme, by arranging multiple electric heating tubes, multiple first connecting tubes, heat storage chambers and flanges, when in use, the heat exchange area is increased, the absorption and release efficiency of thermal energy is improved, and the storage and output of heat can be effectively balanced and adjusted, which helps to maintain the stability of steam supply when the system load fluctuates, reduce energy loss, and achieve energy conservation and emission reduction, which not only reduces the operating cost, but also meets the current requirements for environmental protection. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The accompanying drawings, which are incorporated herein and constitute a part of the specification, illustrate embodiments of the present disclosure and, together with the description, further serve to explain the principles of the present disclosure and to enable those skilled in the relevant art to make and use the present disclosure.

[0014] Figure 1 This is a schematic diagram of the three-dimensional structure of a multi-tube thermal storage biomass steam generator.

[0015] Figure 2 Schematic diagram of the partition structure.

[0016] Figure 3 Schematic diagram of the exhaust pipe structure.

[0017] Figure 4 Schematic diagram of the steam-water separator structure.

[0018] Figure 5 This is a schematic diagram of the heat storage box structure.

[0019] Figure 6 Schematic diagram of the heat storage chamber structure.

[0020] Figure 7 It is a schematic diagram of the electric heating tube structure.

[0021] Figure 8 Schematic diagram of the ash storage frame structure.

[0022] Fig. 9 Schematic diagram of thermal insulation structure.

[0023] [Reference Signs]

[0024] 1. Steam generator body; 2. Instrument; 3. Controller; 4. Partition; 5. Accommodating chamber; 6. Furnace; 601. Outer wall; 602. Heat insulation structure; 603. Inner wall; 7. Second water tank; 8. Heat storage mechanism; 801. Heat storage tank; 802. Electric heating pipe; 803. First fan; 804. First connecting pipe; 805. Heat storage chamber; 806. Flange; 9. First water tank; 10. Preheating tank; 11. Air outlet pipe; 12. Sealing door; 13. Steam-water separator; 14. Ash storage frame; 15. Water inlet pipe.

[0025] As shown in the figure, in order to clearly implement the structure of the embodiment of the utility model, specific structures and devices are marked in the figure, but this is only for illustrative purposes and is not intended to limit the utility model to the specific structure, device and environment. According to specific needs, ordinary technicians in this field can adjust or modify these devices and environments, and the adjustments or modifications made are still included in the scope of the attached claims. DETAILED DESCRIPTION

[0026] The following is a detailed description of a multi-tube heat storage biomass steam generator provided by the utility model in combination with the accompanying drawings and specific embodiments. At the same time, it is explained here that in order to make the embodiments more detailed, the following embodiments are the best and preferred embodiments, and those skilled in the art may also adopt other alternative methods to implement some known technologies; and the accompanying drawings are only for a more specific description of the embodiments, and are not intended to specifically limit the utility model.

[0027] like Figure 1 , Figure 2 , Figure 3 , Figure 5 , Figure 6 and Figure 7 As shown, an embodiment of the utility model provides a multi-tube heat storage biomass steam generator, including a steam generator body 1, which is divided into a furnace 6 and a receiving chamber 5 by a partition 4, and a heat storage mechanism 8 is placed in the receiving chamber 5. The heat storage mechanism 8 includes a heat storage box 801, multiple electric heating tubes 802, a first fan 803, multiple first connecting tubes 804, a heat storage chamber 805 and a flange 806. The air outlet end of the first fan 803 is connected to the multiple first connecting tubes 804, the first connecting tube 804 is connected to the heat storage chamber 805, and the multiple electric heating tubes 802 are connected to the heat storage box 801 through the flange 806.

[0028] The electric heating tube 802 adopts customized stainless steel electric heating rod, which has low surface heat load, longer service life, uniform layout and high thermal efficiency. The stainless steel electric heater is connected to the equipment with flange 806, which is easy to disassemble and assemble, and convenient for inspection and maintenance. The configured electrical appliances are all well-known trademark products with 3C compulsory certification mark, which are reliable and durable.

[0029] like Figure 2 , Figure 3 and Figure 4 As shown, the accommodating chamber 5 is installed with a first water tank 9, a second water tank 7 and a preheating tank 10, a steam-water separator 13 is installed in the second water tank 7, the top of the steam-water separator 13 is connected with an air outlet pipe 11, and the first water tank 9 is connected to the second water tank 7 through a second connecting pipe.

[0030] The main function of the steam-water separator 13 is to separate the entrained water from the steam, which is very important for the quality of the steam, because if the steam contains too much water, it may cause damage to the equipment using the steam. By effectively separating the water, equipment damage and accidents can be avoided.

[0031] like Figure 2 and Fig. 9As shown, the furnace 6 is divided into an inner wall 603 and an outer wall 601, a hollow structure is formed between the inner wall 603 and the outer wall 601, a heat insulating structure 602 is arranged in the hollow structure, and the heat insulating structure 602 includes an aluminum silicate wool layer, a rock wool layer and a nano-ceramic layer arranged in sequence from the inner wall 603 to the outer wall 601.

[0032] The furnace 6 is made of special refractory material, with positive pressure air supply and no fire leakage. The heat insulation structure 602 can effectively prevent the heat loss in the boiler, minimize the heat loss, and thus improve the energy utilization efficiency.

[0033] like Figure 1 As shown, a plurality of instruments 2 are arranged on the top of the steam generator body 1, and the instruments 2 include a pressure detector, a temperature detector, a liquid level detector and an alarm.

[0034] The pressure detector is used to monitor the pressure inside the steam generator in real time. Since the steam generator is a pressure vessel, its working pressure is an important safety indicator. The pressure detector can help the operator ensure that the pressure is within a safe range and prevent safety accidents caused by excessive pressure.

[0035] The temperature detector is used to measure the temperature inside the steam generator. Temperature is a key factor affecting steam quality and equipment efficiency. The temperature detector can ensure that the steam temperature reaches the expected standard and prevent equipment damage caused by overheating.

[0036] The liquid level detector is used to monitor the water level inside the steam generator. The correct water level is crucial to the normal operation of the steam generator. Too low or too high a water level may cause equipment failure or safety problems. The liquid level detector helps maintain the water level within the appropriate range to ensure stable operation of the equipment.

[0037] The alarm is connected to the above detectors. When the detected pressure, temperature or liquid level exceeds the normal range, the alarm will sound an alarm to remind the operator to take measures to prevent potential danger or equipment damage.

[0038] like Figure 1 , Figure 2 , Figure 3 and Figure 8 As shown, an ash storage frame 14 is placed at the bottom of the inner cavity of the furnace 6, a biomass feed port is opened on the side of the steam generator body 1, and a sealing door 12 is provided at the biomass feed port.

[0039] The main function of the ash storage frame 14 is to store the ashes produced during the combustion process to facilitate the cleaning and maintenance of the furnace 6. During the operation of the steam generator body 1, the biomass fuel burns in the furnace 6 to produce ashes, which need to be removed regularly to ensure the cleanliness and combustion efficiency of the inside of the furnace 6. The ash storage frame 14 is a container for collecting these ashes, which can be easily taken out from the bottom of the furnace 6 and emptied of the ashes. This not only keeps the furnace 6 clean, but also helps to maintain the normal operation and safety of the steam generator.

[0040] like Figure 1 and Figure 3 As shown, a water inlet pipe 15 is connected to the top of the steam generator body 1 , and one end of the water inlet pipe 15 passes through the steam generator body 1 and is connected to the preheating box 10 .

[0041] The function of the preheating box 10 in the steam generator system is mainly to preheat the water entering the steam generator body 1. Before the water enters the steam generator body 1, it is preheated first. Preheating can improve the thermal efficiency of the entire system. Because when the preheated water enters the steam generator, the energy required by the heating system will be reduced, thereby speeding up the steam generation rate. Through preheating, the workload of the steam generator heating element can also be reduced, thereby reducing energy consumption and saving costs. Preheating can also reduce the thermal shock to the internal structure of the steam generator caused by too low water temperature, thereby extending the service life of the equipment.

[0042] like Figure 1 As shown, a controller 3 is disposed on the surface of the steam generator body 1 , and the controller 3 includes a backlight display screen and control buttons.

[0043] The backlit display screen adopts a full-color Chinese backlit display screen with rich display functions. It can accurately and intuitively display the operating status of the equipment and the collected working status of the water pump, the working status of the heat storage mechanism 8, the temperature of the equipment water, the current time, alarm information, etc. The operation settings are performed using the controller buttons to achieve human-computer dialogue. It is easy to understand, learn, and remember, and the operation is simple, convenient, and highly automated.

[0044] The technical solution provided by the utility model is that the treated soft water is injected into the preheating tank 10 for preheating, and then sent into the first water tank 9 through a water pump. The water in the first water tank 9 rises under the radiation heat of the heat storage tank 801 and becomes a gas-liquid two-phase flow state. The steam with liquid enters the second water tank 7, and the water contained in the steam is separated in the steam-water separator 13 of the second water tank 7, and then the steam is obtained from the outlet of the air outlet pipe 11.

[0045] The present invention covers any substitution, modification, equivalent method and scheme made on the essence and scope of the present invention. In order to make the public have a thorough understanding of the present invention, specific details are described in detail in the above preferred embodiments of the present invention, and those skilled in the art can fully understand the present invention without the description of these details. In addition, in order to avoid unnecessary confusion about the essence of the present invention, well-known methods, processes, procedures, components and circuits are not described in detail.

[0046] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the present invention. These improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

1. A multi-tube heat storage biomass steam generator, characterized in that: include: A steam generator body (1), the steam generator body (1) being divided into a furnace (6) and a receiving chamber (5) by a partition (4), a heat storage mechanism (8) being placed in the receiving chamber (5), the heat storage mechanism (8) comprising a heat storage box (801), a plurality of electric heating pipes (802), a first fan (803), a plurality of first connecting pipes (804), a heat storage chamber (805) and a flange (806), an air outlet end of the first fan (803) being connected to the plurality of first connecting pipes (804), the first connecting pipes (804) being connected to the heat storage chamber (805), and the plurality of electric heating pipes (802) being connected to the heat storage box (801) via the flange (806).

2. The multi-tube regenerative biomass steam generator according to claim 1, characterized in that: The accommodating chamber (5) is equipped with a first water tank (9), a second water tank (7) and a preheating tank (10); a steam-water separator (13) is installed in the second water tank (7); the top of the steam-water separator (13) is connected to an air outlet pipe (11); and the first water tank (9) and the second water tank (7) are connected via a second connecting pipe.

3. The multi-tube regenerative biomass steam generator according to claim 1, characterized in that: The furnace (6) is divided into an inner wall (603) and an outer wall (601), a hollow structure is formed between the inner wall (603) and the outer wall (601), a heat insulation structure (602) is arranged in the hollow structure, and the heat insulation structure (602) comprises an aluminum silicate wool layer, a rock wool layer and a nano-ceramic layer which are arranged in sequence from the inner wall (603) to the outer wall (601).

4. The multi-tube regenerative biomass steam generator according to claim 1, characterized in that: A plurality of instruments (2) are arranged on the top of the steam generator body (1), and the instruments (2) include a pressure detector, a temperature detector, a liquid level detector and an alarm.

5. The multi-tube regenerative biomass steam generator according to claim 1, characterized in that: An ash storage frame (14) is placed at the bottom of the inner cavity of the furnace (6), and a biomass feed inlet is opened on the side of the steam generator body (1), and a sealing door (12) is provided at the biomass feed inlet.

6. The multi-tube regenerative biomass steam generator according to claim 2, characterized in that: The top of the steam generator body (1) is connected to a water inlet pipe (15), one end of the water inlet pipe (15) passes through the steam generator body (1) and is connected to the preheating box (10).

7. The multi-tube regenerative biomass steam generator according to claim 1, characterized in that: A controller (3) is provided on the surface of the steam generator body (1), and the controller (3) comprises a backlight display screen and control buttons.

Images