Energy storage flash steam engine

Abstract

The present application relates to a kind of energy storage flash steam pump steam units, with heat pump unit, heat preservation water tank, primary atomization module, heat storage pool and steam generating device, heat preservation water tank is connected with heat pump unit to form hot water supply system, and lead out first, second water supply line;Primary atomization module is set on the first water supply line, for the hot water sent by heat preservation water tank is converted into atomized gas form delivery;Heat storage pool is set on the first water supply line and located downstream of primary atomization module, for heating atomized gas, form first steam;Steam generating device is set at the meeting place of first water supply line and second water supply line, for the first steam and the hot water sent by second water supply line are mixed into flash steam, and steam-water separation is carried out to flash steam, obtain suitable high-pressure steam for use.The whole system structure is simple, reliable, stable, safe, low investment cost, effectively reduce power consumption and operating cost, meet the industrial application.

Description

Technical Field

[0001] This invention relates to the field of steam equipment technology, and in particular to industrial steam equipment. Background Technology

[0002] Currently, some industrial production processes require steam heating for molding or steam-insulated shaping. The steam needed is primarily produced by boilers, which use fuel to heat water, vaporizing it into high-temperature, high-pressure steam. The main fuels are coal, oil, and natural gas. However, coal-fired boilers are environmentally unfriendly, with high sulfur content and exhaust gases that severely pollute the air. Furthermore, storing coal requires significant space and generates a lot of dust. Oil-fired boilers suffer from high fuel prices, high operating costs, and high risks associated with fuel transportation and storage, making them prone to accidents. Natural gas boilers are limited to areas with gas pipelines, which are unavailable in some underdeveloped regions. They also suffer from uneven combustion rates and heat radiation, significantly impacting steam generation rate and quality. Subsequently, electric heating for steam production emerged, offering a better solution to these boiler-related problems. However, existing electric steam generators consume large amounts of electricity, especially during peak hours when electricity prices are high, and have low steam production efficiency, resulting in high operating costs and hindering business development. Summary of the Invention

[0003] The purpose of this invention is to provide an energy storage flash heat pump steam unit that utilizes heat pump technology in conjunction with heat storage and optimized structure. This not only solves the technical problems of boiler combustion for steam production, but also effectively reduces electricity consumption and operating costs.

[0004] To achieve the above objectives, the present invention adopts the following technical solution: Energy storage flash heat pump steam unit, which has the following features: Heat pump units, An insulated water tank is connected to a heat pump unit to form a hot water supply system, and a first water supply line and a second water supply line are drawn from the insulated water tank. The primary atomization module is installed on the first water supply line and is used to convert the hot water sent from the insulated water tank into atomized gas for delivery. A thermal storage tank is installed on the first water supply line and downstream of the first-stage atomization module. The atomized gas output by the first-stage atomization module absorbs the heat provided by the thermal storage tank to form the first steam. A steam generating device is installed at the junction of the first water supply line and the second water supply line. The steam generating device is used to mix the first steam output from the first water supply line and the hot water sent from the second water supply line into flash steam, and to separate the flash steam into water to obtain high-pressure steam suitable for industrial production.

[0005] The above solution is further described in that the primary atomization module includes a dual-fluid connector, a steam generator, and a heat exchange pipe. The dual-fluid connector is provided with a fluid flow channel, a steam flow channel, and a primary atomizing nozzle. The fluid flow channel is used to introduce hot water from the insulated water tank, and the steam flow channel is used to introduce second steam provided by the steam generator. The second steam and the hot water introduced in the fluid flow channel are mixed and sprayed out through the primary atomizing nozzle to form atomized gas. The atomized gas flows in the heat exchange pipe and absorbs heat provided by the heat storage tank to form first steam. The heat exchange pipe is spirally wound around the heat storage tank.

[0006] The above-mentioned scheme is further described as follows: the steam generating device includes a flash nozzle and a steam-water separator. The flash nozzle has a flash body, inside which are provided a preheating chamber, a mixing chamber, and a liquid guide pipe inserted from the preheating chamber and extending into the mixing chamber. A secondary atomizing nozzle is provided at the inner end of the extended liquid guide pipe. The secondary atomizing nozzle is located in the mixing chamber and sprays water in a direction away from the preheating chamber. The preheating chamber is connected to a first water supply line, and the liquid guide pipe is connected to a second water supply line, allowing the hot water flowing in the liquid guide pipe to absorb heat in the preheating chamber. A partition plate is provided at the connection between the preheating chamber and the mixing chamber. The partition plate has through holes, allowing the first steam in the preheating chamber to enter the mixing chamber through the through holes and mix with the secondary atomizing nozzle. The atomized gas injected by the atomizing nozzle mixes to form flash steam. One end of the mixing chamber is sealed by a cap that faces the injection of the secondary atomizing nozzle. The cap has an outlet hole through which the flash steam is ejected. The steam-water separator has a heat-conducting separation shell and a heating module disposed on the outer periphery of the separation shell. The separation shell has two or more sequentially connected separation channels, and the separation channels are filled with heat-conducting filter material. One end of the separation shell introduces the flash steam injected by the flash nozzle, while the other end of the separation shell outputs the steam after steam-water separation. After temperature and pressure regulation, high-pressure steam suitable for industrial production is obtained. The heating module is used to heat the steam flowing in the separation channels.

[0007] The above scheme is further described in that the heat storage tank includes an insulated outer shell, a heat storage inner core, and a heating element attached to the heat storage inner core. The heat exchange pipe is wound around the heat storage inner core, and the heating element on the heat storage inner core is a carbon fiber heating tube.

[0008] Furthermore, the steam generator described above is either an electromagnetic steam generator or an electric steam generator.

[0009] The above scheme is further described as follows: the flash evaporation body is columnar, the preheating chamber and the mixing chamber are arranged at axial intervals along the flash evaporation body, and the liquid guide pipe is arranged coaxially with the flash evaporation body. The liquid guide pipe extends into the mixing chamber through the center of the partition plate, and the through holes on the partition plate are distributed around the liquid guide pipe. The cap is parallel to the partition plate, and the orthogonal projection of the vent on the cap onto the partition plate falls exactly between the through hole and the liquid guide pipe.

[0010] A further improvement in the above scheme is that the partition plate is equipped with an ultrasonic generator.

[0011] A further improvement of the above scheme is that the inner side of the cap facing the mixing chamber is provided with a guide arc surface, which guides the first steam to move towards the injection area of ​​the secondary atomizing nozzle.

[0012] The above scheme is further described in that the separation channel inside the separation shell forms an inner and outer ring, and the heat-conducting filter material filled in the separation channel is stainless steel fiber; the heating module is an electromagnetic heating sleeve that is sleeved on the separation shell and forms a heat conduction relationship.

[0013] This invention employs heat pump heating technology combined with heat storage. The heat pump system itself has excellent energy-saving effects; combining it with an insulated water tank achieves energy storage and utilization, resulting in high energy efficiency and significantly improved energy savings. The heat storage tank can pre-store heat, and then rapidly heat the hot water provided by the insulated water tank, fully utilizing working intervals to store heat and achieve peak-shifting electricity use, greatly reducing operating costs. Simultaneously, the hot water from the insulated water tank is atomized before exchanging heat with the heat storage tank, further enhancing the heating effect and improving thermal efficiency, which helps reduce operating costs. The steam generation device further fuses superheated steam with hot water to obtain flash steam. The flash steam is then separated and regulated to form high-pressure steam required for industrial production. The entire system has a simple and reliable structure, stable and safe operation, and low investment costs. It solves the technical problems of boiler combustion in steam production, effectively reducing electricity consumption and operating costs, and is suitable for industrial application. Attached Figure Description

[0014] Appendix Figure 1 This is a schematic diagram of a preferred embodiment of the present invention; Appendix Figure 2 This is a schematic diagram of the dual-fluid connector structure of the primary atomization module of the present invention; Appendix Figure 3 This is a schematic diagram of the steam generating apparatus of the present invention; Appendix Figure 4 This is a schematic diagram of the structure of the flash nozzle of the present invention. Detailed Implementation

[0015] The following will further explain the concept, specific structure, and technical effects of the present invention in conjunction with the accompanying drawings, so as to fully understand the purpose, features, and effects of the present invention.

[0016] It should be noted that in the description of this invention, the terms "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," which indicate directional or positional relationships, are based on the directional or positional relationships shown in the accompanying drawings. These terms are used merely for ease of description and do not indicate or imply that the device or element must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features.

[0017] See Figure 1 , 2Figures 3 and 4 show schematic diagrams of a preferred embodiment of the present invention. The present invention relates to an energy storage flash heat pump steam generator unit, comprising: a heat pump unit 1, an insulated water tank 2, a primary atomization module 3, a thermal storage pool 4, and a steam generation device 5. The heat pump unit 1 includes a circulating pump 11, a heat pump condenser 12, a heat pump compressor 13, and a heat pump evaporator 14. Through heat pump technology, effective energy saving and high efficiency are achieved, improving the unit's operability and social benefits. The insulated water tank 2 is connected to the heat pump unit 1 to form a hot water supply system. Using heat pump technology, the water temperature in the insulated water tank 2 can reach 85~90℃ for rapid subsequent vaporization, reducing the time required for water vaporization to produce steam. The insulated water tank 2 is equipped with a temperature probe 23 and a water level gauge 24. The temperature probe 23 monitors the water temperature in the insulated water tank 2 and coordinates with the heat pump unit 1 for operation control. The water level gauge 24 automatically monitors the water volume in the insulated water tank 2 and contacts the water replenishment system for automatic water replenishment control, achieving automated control. A first water supply line 21 and a second water supply line 22 are led out from the insulated water tank 2. A first quantitative high-pressure pump 211 is equipped on the first water supply line 21, and a second quantitative high-pressure pump 221 is equipped on the second water supply line 22 to ensure the output water pressure to meet the needs of steam production. The first-stage atomization module 3 is set on the first water supply line 21 to convert the hot water from the insulated water tank 2 into atomized gas for transportation, thereby improving the heating and vaporization efficiency. The thermal storage tank 4 is set on the first water supply line 21 and downstream of the first-stage atomization module 3. The atomized gas output by the first-stage atomization module 3 absorbs the heat provided by the thermal storage tank 4 to form the first steam. The steam generating device 5 is set at the confluence of the first water supply line 21 and the second water supply line 22. The steam generating device 5 is used to mix the first steam output from the first water supply line 21 and the hot water from the second water supply line 22 into flash steam, and to separate the flash steam into water to obtain high-pressure steam suitable for industrial production. The entire system has a simple and reliable structure, stable and safe operation, and low investment cost. It solves the technical problems of boiler combustion for steam production, effectively reduces electricity consumption and operating costs, and is in line with industrial promotion and application.

[0018] Figure 1 , 2As shown, in this embodiment, the primary atomizing module 3 includes a dual-fluid connector 31, a steam generator 32, and a heat exchange pipe 33. The dual-fluid connector 31 is provided with a fluid channel 311, a steam channel 312, and a primary atomizing nozzle 313. The fluid channel 311 is used to introduce hot water from the insulated water tank 2, and the steam channel 312 is used to introduce second steam provided by the steam generator 32, which acts as an ejector. The second steam and the hot water introduced into the fluid channel 311 are mixed and sprayed out after being guided by the primary atomizing nozzle 313 to form atomized gas. The atomized gas flows in the heat exchange pipe 33 and absorbs heat from the heat storage tank 4 to form first steam. The heat exchange pipe 33 is spirally wound around the heat storage tank 4. In this scheme, the hot water is atomized and then heated. The atomized gas can be completely filled in the heat exchange pipe 33, making full use of the heat conduction surface of the heat exchange pipe 33. The atomized gas can achieve uniform and rapid heating to form first steam. In this embodiment, the first steam is superheated steam. This design achieves rapid heating and high energy efficiency, which is beneficial for steam production and significantly enhances energy conservation. In this embodiment, the thermal storage tank 4 includes an insulated outer shell 41, a thermal storage core 42, and heating elements attached to the thermal storage core 42. Heat exchange pipes 33 are wound around the thermal storage core 42, and the heating elements on the thermal storage core 42 are carbon fiber heating tubes. The insulated outer shell 41 encloses the thermal storage core 42, effectively protecting it and preventing heat loss. The thermal storage core 42 is made of thermal storage materials, such as molten salt phase change thermal storage materials, high-temperature metal or ceramic thermal storage materials, suitable for medium- and high-temperature thermal storage applications. The thermal storage core 42 can also be assembled with heating elements (not shown in the figure) via plug-in connection, such as movable carbon fiber heating tubes. This not only facilitates assembly and replacement but also allows for full utilization of working intervals to heat and store heat. By using off-peak electricity consumption, low-cost electric heating and storage can be employed, greatly reducing system operating costs and improving the practicality and economy of the unit. In this embodiment, the steam generator 32 can be an electromagnetic steam generator or an electric steam generator. The steam provided by the steam generator 32 is used for ejection drive to improve the atomization spraying efficiency of the primary atomizing nozzle 313.

[0019] Figure 1 , 3As shown in Figure 4, in this embodiment, the steam generating device 5 includes a flash nozzle 51 and a steam-water separator 52. The flash nozzle 51 has a flash body 511. Inside the flash body 511, there is a preheating chamber 512, a mixing chamber 513, and a liquid guide tube 514 inserted from the preheating chamber 512 and extending to the mixing chamber 513. The inner end of the extension of the liquid guide tube 514 is provided with a secondary atomizing nozzle 515. The secondary atomizing nozzle 515 is located in the mixing chamber 513 and sprays in a direction away from the preheating chamber 512. The preheating chamber 512 is connected to the first water supply line 21 to obtain the first steam; the liquid guide pipe 514 is connected to the second water supply line 22, and the hot water flowing in the liquid guide pipe 514 can absorb heat and rise in temperature in the preheating chamber 512; a partition plate 516 is provided at the connection between the preheating chamber 512 and the mixing chamber 513, and a through hole 5161 is provided on the partition plate 516 so that the first steam in the preheating chamber 512 can enter the mixing chamber 513 through the through hole 5161 on the partition plate 516 and mix with the atomized gas sprayed by the secondary atomizing nozzle 515 to form flash steam; one end of the mixing chamber 513 is closed by a cap 517, which faces the spray of the secondary atomizing nozzle 515. The cap 517 is provided with an air outlet 5171, and the flash steam is sprayed out through the air outlet 5171. The steam-water separator 52 has a heat-conducting separation shell 521 and a heating module 522 disposed on the outer periphery of the separation shell 521. The separation shell 521 has two or more sequentially connected separation channels, and these channels are filled with heat-conducting filter material 523. One end of the separation shell 521 receives flash steam ejected from a flash nozzle 51, while the other end outputs steam after steam-water separation. This steam is then regulated by temperature and pressure to obtain high-pressure steam suitable for industrial production. The heating module 522 heats the steam flowing in the separation channels, increasing its temperature. In this embodiment, the water separated by the steam-water separator 52 flows back to the insulated water tank 2 for reuse, thus achieving heat recovery.

[0020] Furthermore, the flash evaporation body 511 is cylindrical, and the preheating chamber 512 and mixing chamber 513 are arranged axially spaced along the flash evaporation body 511. The liquid guide pipe 514 is coaxially arranged with the flash evaporation body 511, and extends into the mixing chamber 513 through the center of the partition plate 516. The through holes 5161 on the partition plate 516 are distributed around the liquid guide pipe 514. The cap 517 is parallel to the partition plate 516, and the orthogonal projection of the vent hole 5171 on the cap 517 onto the partition plate 516 falls exactly between the through hole 5161 and the liquid guide pipe 514. By utilizing the misalignment and the effect of the cap 517, the direct injection of steam is delayed, so that the first steam and the atomized gas injected by the secondary atomizing nozzle 515 can be effectively mixed in the mixing chamber 513, thereby achieving flash evaporation. Furthermore, in this embodiment, the separator 516 is equipped with an ultrasonic generator 518. The ultrasonic waves ensure uniform mixing of the gas and liquid in the first steam, enhancing the flash evaporation effect in the mixing chamber 513. The inner surface of the cap 517 facing the mixing chamber 513 is provided with a guide arc surface 5172. This guide arc surface 5172 guides the first steam towards the injection area of ​​the secondary atomizing nozzle 515, increasing the movement of the first steam in the mixing chamber 513, improving the mixing effect, and obtaining uniform flash steam. The separation channel inside the separation shell 521 forms an inner and outer ring. The flash steam moves from the inner ring to the outer ring. The structure is simple and easy to manufacture. It increases the flow path within a limited space, facilitating steam-water separation and heating. The thermally conductive filter material 523 filled in the separation channel is made of stainless steel fiber. During assembly, it is pressed tightly to meet the steam-water separation requirements. At the same time, the thermally conductive filter material 523 has a large heat transfer area, further heating the steam to obtain steam that meets industrial needs. The heating module 522 is an electromagnetic heating sleeve that is fitted onto the separate housing 521 and forms a thermal conduction relationship. It has a simple structure and is easy to manufacture.

[0021] This invention employs heat pump heating technology combined with heat storage. The heat pump system itself has excellent energy-saving effects; combining it with an insulated water tank achieves energy storage and utilization, resulting in high energy efficiency and significantly improved energy savings. The heat storage tank can pre-store heat, and then rapidly heat the hot water provided by the insulated water tank, fully utilizing working intervals to store heat and achieve peak-shifting electricity use, greatly reducing operating costs. Simultaneously, the hot water from the insulated water tank is atomized before exchanging heat with the heat storage tank, further enhancing the heating effect and improving thermal efficiency, which helps reduce operating costs. The steam generation device further fuses superheated steam with hot water to obtain flash steam. The flash steam is then separated and regulated to form high-pressure steam required for industrial production. The entire system has a simple and reliable structure, stable and safe operation, and low investment costs. It solves the technical problems of boiler combustion in steam production, effectively reducing electricity consumption and operating costs, and is suitable for industrial application.

[0022] While preferred embodiments of the present invention have been described above in conjunction with the accompanying drawings, the present invention should not be limited to structures and operations that are exactly the same as those described above and shown in the drawings. Those skilled in the art can make many equivalent improvements and variations to the above embodiments through logical analysis, reasoning, or limited experiments without departing from the concept and scope of the present invention, but all such improvements and variations should fall within the scope of protection claimed by the present invention.

Claims

1. An energy storage flash heat pump steam unit, characterized in that, have: Heat pump unit (1) Insulated water tank (2), which is connected to heat pump unit (1) to form a hot water supply system, and a first water supply line (21) and a second water supply line (22) are drawn out from the insulated water tank (2); A primary atomizing module (3) is installed on the first water supply line (21) to convert the hot water sent from the insulated water tank (2) into atomized gas for delivery. The heat storage tank (4) is located on the first water supply line (21) and downstream of the first atomizing module (3). The atomized gas output by the first atomizing module (3) absorbs the heat provided by the heat storage tank (4) to form the first steam. Steam generating device (5) is set at the junction of the first water supply line (21) and the second water supply line (22). The steam generating device (5) is used to mix the first steam output from the first water supply line (21) and the hot water sent from the second water supply line (22) into flash steam, and to separate the flash steam into water to obtain high-pressure steam suitable for industrial production. The primary atomizing module (3) includes a dual fluid connector (31), a steam generator (32), and a heat exchange pipe (33). The dual fluid connector (31) is provided with a fluid flow channel (311), a steam flow channel (312), and a primary atomizing nozzle (313). The fluid flow channel (311) is used to introduce hot water sent from the insulated water tank (2), and the steam flow channel (312) is used to introduce the second steam provided by the steam generator (32). The second steam and the hot water introduced in the fluid flow channel (311) are mixed and sprayed out through the primary atomizing nozzle (313) to form atomized gas. The atomized gas flows in the heat exchange pipe (33) and absorbs the heat provided by the heat storage tank (4) to form the first steam. The heat exchange pipe (33) is spirally wound on the heat storage tank (4). The steam generating device (5) includes a flash nozzle (51) and a steam-water separator (52). The flash nozzle (51) has a flash body (511). Inside the flash body (511) are a preheating chamber (512), a mixing chamber (513), and a liquid guide tube (514) inserted from the preheating chamber (512) and extending to the mixing chamber (513). A secondary atomizing nozzle (515) is provided at the extended inner end of the liquid guide tube (514). The secondary atomizing nozzle (515) is located in the mixing chamber (513) and sprays in a direction away from the preheating chamber (512). The preheating chamber (512) is connected to a first water supply line (21), and the liquid guide tube (514) is connected to a second water supply line (21). A water line (22) is provided, and the hot water flowing in the liquid guide pipe (514) absorbs heat in the preheating chamber (512); a partition plate (516) is provided at the connection between the preheating chamber (512) and the mixing chamber (513), and a through hole (5161) is provided on the partition plate (516) so that the first steam in the preheating chamber (512) enters the mixing chamber (513) through the through hole (5161) on the partition plate (516) and mixes with the atomized gas sprayed by the secondary atomizing nozzle (515) to form flash steam; one end of the mixing chamber (513) is closed by a cap (517), which faces the spray of the secondary atomizing nozzle (515), and the cap (517) is provided with an outlet The flash steam is ejected through the vent (5171); the steam-water separator (52) has a heat-conducting separation shell (521) and a heating module (522) disposed on the outer periphery of the separation shell (521). The separation shell (521) has two or more sequentially connected separation channels inside, and the separation channels are filled with heat-conducting filter material (523). One end of the separation shell (521) introduces the flash steam ejected from the flash nozzle (51), while the other end of the separation shell (521) outputs the steam after steam-water separation and obtains high-pressure steam suitable for industrial production after temperature and pressure regulation; the heating module (522) is used to heat the steam flowing in the separation channel. The flash evaporator (511) is cylindrical, and the preheating chamber (512) and mixing chamber (513) are arranged at axial intervals along the flash evaporator (511). The liquid guide pipe (514) is arranged coaxially with the flash evaporator (511), and the liquid guide pipe (514) extends into the mixing chamber (513) through the center of the partition plate (516). The through holes (5161) on the partition plate (516) are distributed around the liquid guide pipe (514). The cap (517) is parallel to the partition plate (516) and the vent hole (5171) on the cap (517) is projected onto the partition plate (516) exactly between the through hole (5161) and the liquid guide pipe (514).

2. The energy storage flash heat pump steam unit according to claim 1, characterized in that, The heat storage tank (4) includes an insulating outer shell (41), a heat storage inner core (42), and a heating element attached to the heat storage inner core (42). The heat exchange pipe (33) is wound around the heat storage inner core (2), and the heating element on the heat storage inner core (42) is a carbon fiber heating tube.

3. The energy storage flash heat pump steam unit according to claim 1, characterized in that, The steam generator (32) is an electromagnetic steam generator or an electric steam generator.

4. The energy storage flash heat pump steam unit according to claim 1, characterized in that, The partition plate (516) is equipped with an ultrasonic generator (518).

5. The energy storage flash heat pump steam unit according to claim 1, characterized in that, The inner side of the cap (517) facing the mixing chamber (513) is provided with a guide arc surface (5172), which guides the first steam to move towards the injection area of ​​the secondary atomizing nozzle (515).

6. The energy storage flash heat pump steam unit according to claim 1, characterized in that, The separation channel inside the separation shell (521) forms an inner and outer ring, and the thermally conductive filter material (523) filled in the separation channel is stainless steel fiber; the heating module (522) is an electromagnetic heating sleeve that is sleeved on the separation shell (521) and forms a thermal conduction relationship.

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