A new type of heat storage steam engine

Abstract

The present invention provides a novel thermal storage steam generator, comprising: an outer box body, a heat insulation layer, a core machine, an electric control box and a water supply pipe. The present invention adopts a composite energy storage method of phase change thermal storage and sensible heat thermal storage. A composite thermal storage material with high thermal storage density, fast response speed, no corrosion, no pollution and low cost is used; the effective balance of the composite thermal storage material is achieved, and a composite thermal storage material with higher performance is developed and utilized. The present invention can store thermal energy such as geothermal energy, industrial waste heat, solar energy, electric heat energy, etc., and is used in combination with lower temperature thermal energy to produce steam at 535°C - 610°C, thereby achieving resource utilization, avoiding waste of heat, converting the electric energy that cannot be used at night into thermal energy for storage, and then producing high-temperature steam through the present invention. This can not only reduce the waste of electric energy, but also generate electricity through the present invention, thus realizing green industrialization for coal-fired boilers that are still widely used in the power generation field.

Description

Technical Field

[0001] The present invention relates to the technical field of storage boxes, and particularly to a novel heat storage steam generator. Background Art

[0002] Boilers have a history of more than 200 years. They burn coal to generate steam, and steam turbines have promoted the industrial revolution and changed the whole world. Nowadays, to achieve carbon neutrality, the green industrial revolution requires innovative technologies to replace coal-fired boilers that are still widely used in the power generation field. The heat storage steam generator is a technical approach to replace coal-fired boilers and is an integrated innovation based on aerospace technology, energy storage technology, and steam generation technology.

[0003] The combustion chamber of a turbojet engine is one of the three major components of an aeroengine. The air pressurized by the compressor is mixed with fuel and burned in the combustion chamber, converting the chemical energy in the fuel into heat energy, increasing the total enthalpy of the gas, and generating high-temperature and high-pressure gas to better enter the turbine for expansion work.

[0004] The combustion chambers of aeroengines have various forms such as single-tube type, annular-tube type, and annular type. Following the ideal gas law, at a constant volume, the pressure of a gas is proportional to its temperature, that is, the pressure increases as the temperature rises. To adapt to the structure of the heat storage steam generator, the form of the single-tube combustion chamber of an aeroengine is borrowed, and it can be analyzed using tools such as mathematics, thermodynamics, and heat transfer based on the constant volume cycle theory. Summary of the Invention

[0005] In view of the above deficiencies in the prior art, the present invention provides a novel heat storage steam generator.

[0006] To achieve the above invention objective, the technical solution adopted by the present invention is as follows:

[0007] A novel heat storage steam generator, comprising: an outer box body, a heat insulation layer, a core machine, an electric control box, and a water supply pipe. The core machine is arranged inside the outer box body, and the electric control box is arranged on the surface of the outer box body.

[0008] As an improvement, the core machine includes: a nozzle section, a high-temperature heat storage evaporation and superheat section, and a medium-low temperature heat storage preheat section. Inner shells are arranged on the surfaces of the nozzle section, the high-temperature heat storage evaporation and superheat section, and the medium-low temperature heat storage preheat section. The nozzle section, the high-temperature heat storage evaporation and superheat section, and the medium-low temperature heat storage preheat section are connected in sequence. A flange is arranged on one side of the nozzle section away from the high-temperature heat storage evaporation and superheat section. The water supply pipe is connected to the medium-low temperature heat storage preheat section, and a screw thread is arranged at one end of the water supply pipe away from the medium-low temperature heat storage preheat section.

[0009] As an improvement, the high-temperature heat storage evaporation and superheating section includes: a spray atomization evaporation tube, a heat exchanger, a high-temperature heat storage pool, an atomizing nozzle, high-temperature heat storage materials, and an electro-thermal conversion device. The spray atomization evaporation tube, the heat exchanger, the high-temperature heat storage pool, the atomizing nozzle, the high-temperature heat storage materials, and the electro-thermal conversion device are all arranged inside the inner shell.

[0010] As an improvement, a sensor, a relay, a PLC, a touch screen, and software are arranged inside the electric control box. The software is installed in the touch screen. The touch screen is electrically connected to the PLC, and the sensor and the relay are electrically connected to the PLC.

[0011] As an improvement, the electric control box is located on the surface of the outer box body on one side close to the medium-low temperature heat storage preheating section.

[0012] As an improvement, the heat insulation layer includes: an inner heat insulation layer and an outer heat insulation layer. The inner heat insulation layer uses heat-resistant heat insulation materials, and the outer heat insulation layer uses heat insulation materials resistant to a certain temperature.

[0013] As an improvement, the heat insulation layer is arranged on the inner wall of the outer box body and is located between the inner shell and the outer box body. The inner heat insulation layer is arranged on the side close to the inner shell.

[0014] As an improvement, the outer box body is rectangular in shape and can be disassembled.

[0015] The beneficial effects of the present invention are as follows:

[0016] The present invention adopts a composite energy storage method of phase change heat storage and sensible heat storage. It uses a composite heat storage material with high heat storage density, fast response speed, no corrosion, no pollution, and low cost; realizes the effective balance of the composite heat storage material, and develops and utilizes a composite heat storage material with higher performance. The present invention can store heat energy such as geothermal energy, industrial waste heat, solar energy, and electro-thermal energy, and is used in composite utilization with lower-temperature heat energy to produce steam at 535°C - 610°C, thereby achieving resource utilization, avoiding waste of heat, converting the electric energy that cannot be used at night into heat energy for storage, and then producing high-temperature steam through the present invention. This not only reduces waste of electric energy but also enables power generation through the present invention, thus realizing green industrialization in the coal-fired boilers that are still widely used in the power generation field. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a schematic structural diagram of the present invention;

[0018] Figure 2 is a front view of the present invention;

[0019] Figure 3 is a schematic structural diagram of another embodiment of the present invention.

[0020] Reference table of accompanying symbols:

[0021] 1. Outer box; 2. Electric control box; 3. Nozzle section; 4. High-temperature heat storage evaporation and superheating section; 5. Medium and low-temperature heat storage preheating section; 6. Water supply pipe. DETAILED DESCRIPTION

[0022] To make the contents of the present invention more clearly understood, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present invention. Identical parts are denoted by the same reference numerals. It should be noted that the terms "front," "rear," "left," "right," "up," and "down" used in the following description refer to directions in the accompanying drawings, and the terms "inward" and "outward" refer to directions toward or away from the geometric center of a particular component, respectively.

[0023] like Figure 1 and Figure 2 As shown, a new type of heat storage steam jet turbine includes: an outer box body 1, an insulation layer, a core engine, an electric control box 2 and a water supply pipe 6. The core engine is arranged inside the outer box body, and the electric control box is arranged on the surface of the outer box body.

[0024] In one embodiment of the present invention, the outer housing 1 is primarily welded from steel plates and channel steel, and possesses sufficient load-bearing capacity, compressive strength, and impact resistance. The core engine is bolted to the interior of the outer housing 1, and the electrical control box 2 is also bolted to the surface of the outer housing 1.

[0025] Among them, the core engine includes: a nozzle section 3, a high-temperature heat storage evaporation and superheating section 4 and a medium-low temperature heat storage preheating section 5. The surfaces of the nozzle section 3, the high-temperature heat storage evaporation and superheating section 4 and the medium-low temperature heat storage preheating section 5 are all provided with an inner shell. The nozzle section 3, the high-temperature heat storage evaporation and superheating section 4 and the medium-low temperature heat storage preheating section 5 are connected in sequence. A flange is provided on the side of the nozzle section 3 away from the high-temperature heat storage evaporation and superheating section 4. The water supply pipe 6 is connected to the medium-low temperature heat storage preheating section 5. A thread is provided on the end of the water supply pipe 6 away from the medium-low temperature heat storage preheating section 5.

[0026] In one embodiment of the present invention, the water supply pipe 6 is connected to the external purified water circulation system through a thread, so that clean water continuously enters the core engine.

[0027] In an embodiment of the present invention, when water enters the core machine, the medium and low temperature heat storage preheating section 5 preheats the circulating water to a temperature of about 90 °C by storing medium and low temperature heat energy. Among them, it can store heat energy such as geothermal energy, industrial waste heat, and solar energy, and is a device that can cycle and repeatedly charge / discharge heat. Taking 90 °C as the design point, a composite heat storage material with an appropriate phase change temperature and a special heat exchanger are used to heat water with a certain pressure to a temperature of about 90 °C. Appropriate thermal insulation materials are used for thermal insulation to reduce heat loss.

[0028] Among them, the high temperature heat storage evaporation and superheating section 4 includes: a spray atomization evaporation tube, a heat exchanger, a high temperature heat storage pool, an atomization nozzle, a high temperature heat storage material, and an electrothermal conversion device. The spray atomization evaporation tube, the heat exchanger, the high temperature heat storage pool, the atomization nozzle, the high temperature heat storage material, and the electrothermal conversion device are all arranged inside the inner housing.

[0029] In an embodiment of the present invention, the water preheated by the medium and low temperature heat storage preheating section 5 enters the high temperature heat storage evaporation and superheating section 4, forms a steam-water mixture through the spray atomization evaporation tube, passes through the steam-water separation device, and separates out saturated steam. The saturated steam flows through the superheater to form superheated steam. The temperature of the superheated steam exceeds the evaporation temperature and is steam with a certain degree of superheat.

[0030] Among them, sensors, relays, a PLC, a touch screen, and software are arranged inside the electric control box 2. The software is installed in the touch screen, the touch screen is electrically connected to the PLC, and the sensors and relays are electrically connected to the PLC.

[0031] In an embodiment of the present invention, the electric control box 2 controls the heat storage temperature, loop start and stop, water flow rate, pressure, etc., conducts a circuit inspection and recording of the unit, gives a fault alarm and data display, provides leakage protection, mode switching, etc.

[0032] It should be noted that the electric control box 2 is located on the surface of the outer box 1 on one side close to the medium and low temperature heat storage preheating section 5, so as to avoid damage to the electric control box 2 caused by excessive temperature.

[0033] It should be noted that the thermal insulation layer includes an inner thermal insulation layer and an outer thermal insulation layer. The inner thermal insulation layer uses a high temperature resistant thermal insulation material, the outer thermal insulation layer uses a thermal insulation material resistant to a certain temperature. The thermal insulation layer is arranged on the inner wall of the outer box 1 and is located between the inner housing and the outer box 1, and the inner thermal insulation layer is arranged on the side close to the inner housing.

[0034] In an embodiment of the present invention, the thermal insulation layer can effectively insulate the high temperature heat storage evaporation and superheating section 4 and the medium and low temperature heat storage preheating section to reduce heat loss.

[0035] It should be noted that the outer box body 1 is rectangular in shape and the outer box body 1 can be disassembled. For the convenience of vehicle transportation, the width of the unit does not exceed 2.2 meters and the height does not exceed 2.4 meters. The outer box can be disassembled, which is convenient for the maintenance and repair of the unit.

[0036] Reference Figure 3 , in an embodiment of the present invention, the nozzle section 3 can be replaced. The nozzle section 3 in the present invention is a subsonic nozzle and can be replaced with a Laval nozzle. Different nozzles can be selected according to the actual application scenario.

[0037] The present invention can store the heat energy at a relatively low temperature, and compoundly utilize it with the heat energy at a relatively low temperature to produce steam at 535°C - 610°C. Then, the steam is introduced into a steam turbine generator set for power generation, which not only replaces the coal-fired boilers still widely used in the power generation field, but also can generate electricity by using the heat energy at a relatively low temperature.

[0038] The above are only the preferred embodiments of the present invention patent, and are not intended to limit the present invention patent. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention patent shall be included within the protection scope of the present invention patent.

Claims

1. A new type of heat storage steam jet, characterized in that: include: An outer box, an insulation layer, a core machine, an electric control box, and a water supply pipe, wherein the core machine is arranged inside the outer box, and the electric control box is arranged on the surface of the outer box; The core engine includes: a nozzle section, a high-temperature heat storage evaporation and superheating section, and a medium-low temperature heat storage preheating section. The surfaces of the nozzle section, the high-temperature heat storage evaporation and superheating section, and the medium-low temperature heat storage preheating section are all provided with an inner shell. The nozzle section, the high-temperature heat storage evaporation and superheating section, and the medium-low temperature heat storage preheating section are connected in sequence. A flange is provided on the side of the nozzle section away from the high-temperature heat storage evaporation and superheating section. The water supply pipe is connected to the medium-low temperature heat storage preheating section, and a thread is provided on the end of the water supply pipe away from the medium-low temperature heat storage preheating section. The electric control box is internally provided with sensors, relays, a PLC, a touch screen and software. The software is installed in the touch screen. The touch screen is electrically connected to the PLC. The sensors and relays are electrically connected to the PLC.

2. A novel thermal storage steam jet according to claim 1, characterized in that: The high-temperature heat storage evaporation and superheating section includes: a spray atomization evaporation tube, a heat exchanger, a high-temperature heat storage tank, an atomizing nozzle, a high-temperature heat storage material and an electric heat conversion device. The spray atomization evaporation tube, the heat exchanger, the high-temperature heat storage tank, the atomizing nozzle, the high-temperature heat storage material and the electric heat conversion device are all arranged inside the inner shell.

3. The novel heat storage steam jet according to claim 1 is characterized in that: The electric control box is located on the surface of the outer box body close to the medium and low temperature heat storage and preheating section.

4. The novel thermal storage steam jet according to claim 1 is characterized in that: The thermal insulation layer comprises an inner thermal insulation layer and an outer thermal insulation layer. The inner thermal insulation layer adopts a thermal insulation material resistant to high temperatures, and the outer thermal insulation layer adopts a thermal insulation material resistant to a certain temperature.

5. The novel heat storage steam jet according to claim 4 is characterized in that: The heat-insulating layer is arranged on the inner wall of the outer box body and is located between the inner shell body and the outer box body. The inner heat-insulating layer is arranged close to one side of the inner shell body.

6. The novel thermal storage steam jet according to claim 4 is characterized in that: The outer box body is in a rectangular shape and can be disassembled.

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