Micro-gravity high-efficiency steam generation separation integrated device

Abstract

The present application relates to steam generator technical field, specifically to a kind of microgravity high-efficiency steam generation separation integrated device, including steam generation tank and steam separation tank, steam separation tank is located in the upper of steam generation tank, one end of steam generation tank is communicated with steam separation tank by steam outlet pipe, the other end is communicated with steam separation tank by backwater pipe, steam generation tank is equipped with tube sheet and multiple heat exchange tubes, two ends of multiple heat exchange tubes are inserted in tube sheet, the upper end of steam generation tank is equipped with the working medium inlet for working medium to enter, and the lower end is equipped with working medium outlet, the inlet of steam separation tank is equipped with baffle, and the upper end of steam separation tank is equipped with steam outlet.Working medium condenses outside the tube, water directly forms high-temperature water mist and water vapor by heat absorption in the tube, water mist and water vapor are separated in steam separation tank, realize efficient heat exchange in the tube, efficient condensation outside the tube, improve the comprehensive heat exchange efficiency, simplify the overall process of heat pump unit.

Description

Technical Field

[0001] This invention relates to the field of steam generator technology, specifically to a microgravity high-efficiency steam generator-separator integrated device. Background Technology

[0002] Currently, commonly used steam generating devices include steam boilers and flash steam generators. Steam boilers consist of a boiler drum and a furnace. Fuel burns in the furnace to generate heat, and water is heated in the boiler drum to turn into steam. Steam can directly provide the heat energy needed for industrial production and people's lives. In order to generate sufficient steam, steam boilers need to burn a large amount of fuel, which not only results in low thermal efficiency, but also causes serious environmental pollution by emitting exhaust gases into the air after fuel combustion.

[0003] In a flash steam heat pump, the steam generator delivers high-pressure hot water to a water-side throttling device via a high-temperature water circulation pump. This device reduces the pressure of the hot water, resulting in cooled and depressurized steam. The steam then passes through a compressor and enters a condenser to release heat and condense. After passing through an expansion valve, it is further cooled and becomes the original liquid working fluid. The operation of this system places stringent requirements on the compressor and results in additional energy loss. Summary of the Invention

[0004] This invention addresses the existing technical problems by providing a microgravity high-efficiency steam generator and separator integrated device.

[0005] The technical solution of the present invention to solve the above-mentioned technical problems is as follows: A microgravity high-efficiency steam generator and separator includes a steam generator and a steam separator. The steam separator is located above the steam generator. One end of the steam generator is connected to the steam separator through a steam outlet pipe, and the other end is connected to the steam separator through a return water pipe. The steam generator is provided with a tube sheet and multiple heat exchange tubes. The two ends of the multiple heat exchange tubes are inserted into the tube sheet. A tube box is formed between the tube sheet and the inner wall of the end of the steam generator. The heat exchange tubes are connected to the tube box. The upper end of the steam generator is provided with a working fluid inlet for the working fluid to enter, and the lower end is provided with a working fluid outlet. The inlet of the steam separator is provided with a baffle plate, and the upper end of the steam separator is provided with a steam outlet.

[0006] Based on the above technical solution, in order to achieve ease of use and stability of the equipment, the present invention can also make the following improvements to the above technical solution:

[0007] Furthermore, the steam generator is equipped with a liquid equalization plate, which is located at the inlet of the return water pipe inside the steam generator.

[0008] Furthermore, the steam separator is also equipped with a liquid level sedating plate, which is located below and to the side of the baffle plate.

[0009] Furthermore, a wire mesh demister is provided at the steam outlet.

[0010] Furthermore, it also includes a water inlet, a spiral coil, and a hot water supply pipe. The spiral coil is installed on the steam generator. One end of the spiral coil is connected to the water inlet, and the other end is connected to the hot water supply pipe. The hot water supply pipe is connected to the steam separator. The working fluid at the working fluid outlet heats the spiral coil.

[0011] Furthermore, the heat exchange tubes are arranged in an equilateral triangle with corners on the liquid distribution plate.

[0012] Furthermore, the rotation angle δ is 10°-20°.

[0013] Furthermore, the steam generator is equipped with multiple baffles.

[0014] The beneficial effects of this invention are as follows: The steam generator is a shell-and-tube heat exchanger structure. High-temperature working fluid enters the steam generator through the working fluid inlet, releases heat and condenses inside, then flows out through the working fluid outlet. Water in the heat exchange tubes absorbs the heat released by the high-temperature working fluid, forming a mixture of steam and water mist. This mixture rises and flows into the steam separator, where the steam and water mist are separated by the inlet baffle, thus obtaining steam. This device uses high-efficiency heat exchange tubes, achieving efficient heat exchange inside the tubes and efficient condensation outside. The siphon circulation is achieved through gravity of the water level in the steam separator, improving the overall heat exchange efficiency. By integrating the steam generation and gas-liquid separation functions, the high-temperature water circulation pump and water-side throttling device of the prior art are eliminated, simplifying the overall process of the heat pump unit and making the unit more concise and efficient. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of the present invention;

[0016] Figure 2 For the present invention Figure 1 Enlarged view of point A in the middle;

[0017] Figure 3 This is a schematic diagram of the heat exchange tube arrangement of the present invention;

[0018] Figure 4 This is a schematic diagram of the working fluid flowing between heat exchange tubes when the rotation angle δ of the heat exchange tubes is 0.

[0019] Figure 5 This is a schematic diagram of the working fluid flowing between the heat exchange tubes when the heat exchange tube rotation angle δ is 15° according to the present invention.

[0020] Figure 6 This is a schematic diagram showing the flow of the working fluid between the heat exchange tubes when the rotation angle δ is 30°.

[0021] Attached reference numerals: 1. Steam generator; 2. Steam separator; 3. Makeup water inlet; 4. Working fluid inlet; 5. Working fluid outlet; 6. Spiral coil; 7. Liquid distribution plate; 8. Heat exchange tube; 9. Baffle plate; 10. Liquid level stabilizer plate; 11. Steam outlet; 12. Wire mesh demister; 13. Return water pipe; 14. Drain water pipe; 15. Makeup hot water pipe; 16. Gas distribution channel; 17. Liquid distribution channel; 18. Baffle plate; 19. Steam outlet pipe. Detailed Implementation

[0022] In the description of this invention, it should be understood that the terms "upper," "lower," "front," "rear," "left," and "right," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the invention and for simplifying the description, and do not indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0023] The principles and features of the present invention are described below with reference to the accompanying drawings. The examples given are only for explaining the present invention and are not intended to limit the scope of the present invention.

[0024] like Figures 1 to 6 As shown, this invention discloses a microgravity high-efficiency steam generator and separator, comprising a steam generator tank 1 and a steam separator tank 2. The steam separator tank 2 is mounted above the steam generator tank 1 via a support frame, featuring a compact and efficient structure with a small footprint. It enables hot water in the steam separator tank 2 to flow into the steam generator tank 1 under gravity, achieving siphon circulation and making the unit more concise and efficient. One end of the steam generator tank 1 is connected to the steam separator tank 2 via a steam outlet pipe 19, and the other end is connected to the steam separator tank 2 via a return water pipe 13. The steam generator tank 1 is equipped with a tube sheet and multiple heat exchange tubes 8. Heat pipes 8 form a tube bundle that extends along the length of steam generator 1. Both ends of the tube bundle are inserted into a tube sheet, and a tube box is formed between the tube sheet and the inner wall of the end of the steam generator 1. The end of the heat exchange tube 8 is connected to the tube box, and the return water pipe 13 is connected to the tube box inside the steam generator 1, so that water is evenly distributed in the heat exchange tube 8 and the water and working fluid are separated to ensure normal heat exchange. The upper end of the steam generator 1 is provided with a working fluid inlet 4 for the working fluid to enter, and the lower end is provided with a working fluid outlet 5. The working fluid inlet 4 and the working fluid outlet 5 are located at both ends of the steam generator 1 to increase the heat exchange area and improve the heat exchange effect.

[0025] Furthermore, the steam generator 1 is provided with multiple horizontally distributed gas equalization channels 16. The gas equalization channels 16 ensure that the gaseous working fluid is evenly distributed in the steam generator 1, thereby improving the heat exchange efficiency. Otherwise, only a small amount of working fluid will exchange heat with the water in the heat exchange tube 8, resulting in uneven heat exchange. The heat exchange temperature of the water in the heat exchange tube 8 will not reach the set requirements, affecting the steam output. The steam generator 1 is provided with vertically distributed liquid drainage channels 17 to ensure that the liquid working fluid condensed from the heat exchange is discharged to the bottom of the steam generator 1 as soon as possible, and not in the pipe arrangement area of ​​the heat exchange tube 8, so as to prevent the condensate working fluid from accumulating in the heat exchange tube bundle and affecting the heat exchange effect.

[0026] A high-temperature working fluid enters the steam generator 1 through the working fluid inlet 4, heating the water in the heat exchange tube 8 to form high-temperature steam and water mist. After releasing heat and condensing, the high-temperature working fluid flows out through the working fluid outlet 5. The mixture of steam and water mist enters the steam separator 2 through the steam outlet pipe 19. The steam separator 2 is equipped with a baffle plate 9 at its inlet. The water mist impacts the baffle plate 9 and condenses into water droplets, thus separating water from steam. The upper end of the steam separator 2 is equipped with a steam outlet 11, through which steam is discharged. The hot water and some steam separated in the steam separator 2 return to the steam generator 1 through the return water pipe 13 under the action of gravity, realizing the siphon circulation of hot water and reducing operating costs.

[0027] Among them, microgravity refers to the fact that the liquid water level in the steam separator 2 is controlled at a very low level, and a small amount of liquid water circulates to the steam generator 1 below under the action of gravity.

[0028] Furthermore, a wire mesh demister 12 is provided at the steam outlet 11 to remove mist entrained in the water vapor, ensuring that the water vapor is free of liquid droplets and can be directly compressed and transported.

[0029] The steam separator 2 is also equipped with a liquid level stabilizer plate 10, which is located below and to the side of the baffle plate 9. The stabilizer plate 10 plays a role in stabilizing the flow, making the flow of water in the steam separator 2 more stable and preventing water from being entrained by the airflow.

[0030] The steam generator 1 is equipped with a liquid equalization plate 7, which is located at the inlet of the return water pipe 13 within the steam generator 1. The liquid equalization plate 7 is located inside the tube box and parallel to the tube sheet. The liquid equalization plate 7 has multiple evenly distributed liquid equalization holes. Water flowing out of the steam separator 2 first passes through the liquid equalization plate 7 for liquid equalization before entering the heat exchange tubes 8 on the tube sheet. This ensures that the incoming water is evenly distributed into each heat exchange tube 8, improving heat exchange efficiency and ensuring stable steam production.

[0031] The steam generator 1 has a drain pipe 14 at the bottom of both ends of the pipe box to drain excess water from the steam generator 1 and improve the convenience of use.

[0032] The microgravity high-efficiency steam generator-separator also includes a water inlet 3, a spiral coil 6, and a hot water supply pipe 15. The spiral coil 6 is installed on the steam generator 1, with one end connected to the water inlet 3 and the other end connected to the hot water supply pipe 15. The hot water supply pipe 15 is connected to the steam separator 2. The working fluid outlet 5 passes through the spiral coil 6, and the working fluid at the outlet 5 heats the spiral coil 6, raising the temperature of the water inside. The working fluid temperature is adjusted according to the required steam temperature, up to a maximum of 120°C. When the working fluid outlet 5 passes through the spiral coil 6, it preheats the water inside the coil 6 and increases the subcooling of the working fluid. The water temperature preheated by the spiral coil 6 can increase by 10°C-40°C, improving heating efficiency and reducing the temperature difference between the water and the working fluid. This avoids the heat exchange tube 8 from bending or breaking due to excessive thermal stress, and also lowers the user's water supply temperature, achieving room temperature water supply. The spiral coil structure can increase the heating area and further improve the preheating effect of the water supply.

[0033] Furthermore, the inlet of the hot water supply pipe 15 is located on the left side of the liquid level sedating plate 10, that is, on the side away from the return water pipe 13, to ensure that the water supply will not affect the stable flow of condensate in the steam separator 2. In addition, the hot water flowing out of the hot water supply pipe 15 is further preheated by the hot water in the steam separator 2, and flows into the steam generator 1 through the return water pipe 13, further improving the heat exchange efficiency of the steam generator 1 and reducing the heating cost.

[0034] The multiple heat exchange tubes 8 are arranged in an equilateral triangle on the tube sheet, wherein the angle δ is the angle between the median of the equilateral triangle and the horizontal direction, and the angle δ is 10°-20°, preferably 15°. Figure 5 As shown, the compact arrangement not only ensures a uniform distribution of the high-temperature gaseous working fluid, but also allows the liquid working fluid condensed between the tube bundles to be discharged smoothly and promptly to the bottom of the steam generator 1, ensuring uniform distribution of the working fluid within the steam generator 1 and improving heat exchange efficiency. When the rotation angle is less than 10°, as... Figure 4 As shown, the working fluid has a large contact area with the heat exchange tube 8, resulting in good heat exchange performance. However, the flow resistance of the working fluid is relatively high, which can easily lead to problems with poor working fluid drainage. When the turning angle is greater than 20°, the angle is too large, and the gaps between the multiple heat exchange tubes 8 in the direction of working fluid flow are large. A large portion of the gaseous working fluid passes through the gaps between the heat exchange tubes 8, causing a certain degree of short-circuiting of the working fluid and reducing heat exchange efficiency. (Refer to...) Figure 6 As shown.

[0035] The steam generator 1 is equipped with multiple baffles 18. Each baffle 18 is a vertically arranged single-arch baffle within the steam generator 1, meaning the notches of the baffles 18 are staggered horizontally, and the notches of adjacent baffles are staggered along the length of the steam generator 1. These multiple baffles cause the high-temperature working fluid to flow laterally within the steam generator 1, increasing its velocity and prompting it to pass through the tube bundle multiple times along a predetermined path. This enhances the turbulence of the high-temperature fluid, further improving heat exchange efficiency and allowing direct heat exchange and evaporation of steam. This eliminates the need for a throttling device in a flash steam generator, reducing costs.

[0036] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A microgravity high-efficiency steam generator and separator, comprising a steam generator (1) and a steam separator (2), characterized in that, The steam separator (2) is located above the steam generator (1). One end of the steam generator (1) is connected to the steam separator (2) through a steam outlet pipe (19), and the other end is connected to the steam separator (2) through a return water pipe (13). The steam generator (1) is equipped with a tube sheet and multiple heat exchange tubes (8). The two ends of the multiple heat exchange tubes (8) are inserted into the tube sheet. The multiple heat exchange tubes (8) are arranged in an equilateral triangle with a turning angle δ of 10°-2° on the tube sheet. 0°, a tube box is formed between the tube sheet and the inner wall of the end of the steam generator (1), the heat exchange tube (8) is connected to the tube box, the steam generator (1) is provided with multiple gas equalization channels (16) in the horizontal direction and a liquid discharge channel (17) in the vertical direction, the upper end of the steam generator (1) is provided with a working medium inlet (4) for the working medium to enter, and the lower end is provided with a working medium outlet (5), the inlet of the steam separator (2) is provided with a baffle plate (9), and the upper end of the steam separator (2) is provided with a steam outlet (11).

2. The microgravity high-efficiency steam generator and separator integrated device according to claim 1, characterized in that, The steam generator (1) is equipped with a liquid equalization plate (7), which is located at the inlet of the return water pipe (13) inside the steam generator (1).

3. The microgravity high-efficiency steam generator and separator integrated device according to claim 2, characterized in that, The steam separator (2) is also equipped with a liquid level sedating plate (10), which is located below the baffle plate (9).

4. The microgravity high-efficiency steam generator and separator integrated device according to claim 3, characterized in that, A wire mesh demister (12) is provided at the steam outlet (11).

5. The microgravity high-efficiency steam generator and separator according to any one of claims 1 to 4, characterized in that, It also includes a water inlet (3), a spiral coil (6) and a hot water pipe (15). The spiral coil (6) is installed on the steam generator (1). One end of the spiral coil (6) is connected to the water inlet (3), and the other end is connected to the hot water pipe (15). The hot water pipe (15) is connected to the steam separator (2). The working medium at the working medium outlet (5) heats the spiral coil (6).

6. The microgravity high-efficiency steam generator and separator integrated device according to claim 1, characterized in that, The steam generator (1) is equipped with multiple baffles (18).

Images