High-temperature steam recovery device

Abstract

The invention provides a high-temperature steam recovery device which is a normal-pressure container with a vertical tank body structure, and the interior of a tank is divided into an upper mixing exchange area and a lower liquid storage area by taking the height of a high-temperature steam introduction position as a boundary; an atomizing nozzle, a spraying disc and a filler section are arranged in the mixing exchange area at intervals from top to bottom, the atomizing nozzle is arranged in the middle of the top in the tank and used for atomizing cooling water pumped into the tank, and the spraying disc is located between the atomizing nozzle and the filler section and used for receiving falling atomized liquid drops and then evenly spraying the liquid drops to the filler section below. The filler section is provided with at least one layer of filler; the liquid storage area is used for storing mixed liquid formed by mixing and condensing high-temperature steam and cooling water, and the mixed liquid can be discharged outwards through a water outlet in the bottom of the tank body. The device can be used for recycling various types of low-grade heat energy such as secondary flash steam, high-temperature steam and a steam-water mixture, and is high in heat exchange efficiency, high in flow capacity, high in load adaptability and low in manufacturing cost.

Description

Technical Field

[0001] The invention relates to a high-temperature steam recovery device used in cigarette shred production. Background Art

[0002] At present, cigarette factories use steam heating, drying and material humidification in silk production. In this process, the 0.3-0.4MPa condensate in the condensate recovery tank is directly discharged into the air due to the reduction in pressure and the increase in specific volume, as well as the excess overflow high-temperature steam from the material steam humidification equipment. In order to reduce energy waste, it is necessary to recycle and reuse the steam discharged into the air to achieve the effects of energy conservation, emission reduction, carbon reduction and efficiency improvement. Summary of the Invention

[0003] In order to solve the above technical problems, the present invention proposes a high-temperature steam recovery device, which can be used to recover various types of low-grade thermal energy such as secondary flash steam, high-temperature steam, and steam-water mixture. The device has high heat exchange efficiency, strong flow capacity, strong load adaptability, and low construction cost.

[0004] To achieve the above object, the present invention adopts the following technical solutions:

[0005] A high-temperature steam recovery device, the structural features of which are:

[0006] It is a normal pressure container with a vertical tank structure, used to recover high-temperature steam;

[0007] The tank is divided into an upper mixing and exchange area and a lower liquid storage area by the height of the high-temperature steam inlet; the mixing and exchange area is provided with atomizing nozzles, shower trays, and packing sections from top to bottom, the atomizing nozzle is centrally arranged at the top of the tank and is used to atomize the cooling water pumped into the tank; the shower tray is located between the atomizing nozzle and the packing section and is used to receive the falling atomized droplets and evenly shower them onto the packing section below, the packing section being provided with at least one layer of packing; the liquid storage area is used to store a mixed liquid formed by the mixing and condensation of high-temperature steam and cooling water, and the mixed liquid can be discharged outward through the water outlet at the bottom of the tank body.

[0008] The structural characteristics of the present invention are also:

[0009] The atomizing nozzle includes a fixed cylinder and a movable cylinder which are coaxially mounted, and the cooling water supplied from the outside is received through the axial end of the water inlet side. The fixed cylinder is axially passed through, and the movable cylinder is slidably mounted in the fixed cylinder along the axial direction, and a gap is left between the movable cylinder and the fixed cylinder along the radial direction to form a ring cavity. A spring is built into the ring cavity, and the spring is coaxially mounted on the movable cylinder and axially tensioned between the movable cylinder and the fixed cylinder. The axial end of the movable cylinder on the water inlet side is open, and the axial end on the water outlet side is packaged by a blind plate. The cylinder body is divided into a water inlet section and a water outlet section along the axial direction from the water inlet side to the water outlet side. The length of the water inlet section is greater than that of the water outlet section. The outer peripheral wall of the water inlet section is closed, and a number of atomizing holes are evenly spaced on the outer peripheral wall of the water outlet section. When the spring is in a natural state, the two axial ends of the movable cylinder and the fixed cylinder are flush. After cooling water is introduced into the movable cylinder from the water inlet side, the movable cylinder can rely on the pressure of the cooling water to slide toward the water outlet side until some or all of the atomizing holes in the water outlet section are exposed outside the fixed cylinder.

[0010] The cooling water pumped into the tank is transported by a cooling water delivery pipeline external to the recovery tank, and the cooling water delivery pipeline includes a cooling water main and a cooling water bypass connected in parallel with the cooling water main; the cooling water main is connected to the spray water inlet in the middle of the top end of the recovery tank body, and cooling water is delivered to the water inlet side shaft end of the atomizing nozzle through the spray water inlet. A cooling water regulating valve and two butterfly valves on both sides of the cooling water regulating valve are provided on the pipe section parallel to the cooling water bypass, and the flow rate of cooling water to be introduced into the recovery tank is adjusted by the cooling water regulating valve; a butterfly valve is also provided on the cooling water bypass.

[0011] The packing section is provided with multiple layers of packing, and the structure of each layer of packing is: a circular stainless steel mesh is arranged in a circular support ring plate to form a packing sheet, and the packing sheet is then arranged on the inner wall of the tank body through the support ring plate and horizontally separated in the tank body. The multiple layers of packing sheets are distributed at intervals along the height direction of the tank body to form a layer of packing.

[0012] Each layer of filler is 100mm thick.

[0013] The shower pan is a plate-like structure, which is horizontally separated in the tank body. A number of short channels are formed on the pan body, which are regularly distributed around the center line of the tank body and vertically penetrate the pan body. The atomized droplets formed by the cooling water passing through the atomizing nozzles fall evenly to the filling section through the short channels.

[0014] A pressure gauge is provided on the upper part of the recovery tank body; a liquid level meter and a temperature detection element are respectively provided in the area of the tank body corresponding to the liquid storage area. The real-time liquid level of the mixed liquid in the tank is detected by the liquid level meter, and the real-time temperature of the mixed liquid in the tank is detected and displayed by the temperature detection element.

[0015] High-temperature steam enters the recovery tank through the steam inlet in the middle of the tank body.

[0016] The water outlet at the bottom of the tank body is externally connected to a mixed liquid output pipeline with a pressurized water pump, and the mixed liquid is output to the outside through the mixed liquid output pipeline.

[0017] Compared with the existing technology, the beneficial effects of the present invention are embodied in:

[0018] The present invention simultaneously recovers various types of low-grade thermal energy, such as secondary flash steam, high-temperature steam, and steam-water mixture. The device has strong adaptability and adopts a three-stage absorption structure of spray, water film, and filler. The high-temperature steam and secondary flash steam are thoroughly absorbed by cooling water, which is conducive to reducing equipment energy consumption indicators, reducing energy consumption and waste emissions, and improving resource utilization efficiency. It helps enterprises reduce production costs, enhance their environmental image, and improve their competitiveness.

[0019] The present invention fully atomizes the incoming water through the built-in atomizing nozzle, thereby increasing the steam-water heat exchange area and also increasing the steam-water separation area. The atomizing nozzle adopts a multi-layer, self-adjusting structure, and discharges water at a constant speed under all working conditions at a low pressure drop, and can achieve good atomization of the incoming water under any working conditions from zero to full load. The atomizing nozzle has a simple design, reliable performance, long service life, is not easy to scale or clog, and is easy to disassemble and repair. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the internal structure of the recovery tank;

[0021] Figure 2 This is a structural diagram of the recovery tank from another perspective;

[0022] Figure 3 It is a structural diagram of the shower tray;

[0023] Figure 4 is a schematic structural diagram of a filler support member;

[0024] Figure 5 It is a structural diagram of an atomizing nozzle;

[0025] Figure 6 It is a structural diagram of the atomizing nozzle in working state;

[0026] Figure 7 This is an application example diagram of the present invention.

[0027] In the picture:

[0028] 1. Saturated steam main pipe; 2. Flowmeter; 3. Steam-water separator; 4. Steam trap; 5. Rotating drum; 6. Heat exchanger; 7. Flash tank; 8. Pressurized water pump; 9. Condensate pipe network; 10. Tobacco drying machine exhaust pipe; 101. Exhaust steam inlet pipe; 11. Vent pipe; 12. Cooling water delivery pipe; 121. Cooling water main pipe; 122. Cooling water bypass; 13. Cooling water regulating valve; 14. Butterfly valve; 15. High-temperature steam recovery device; 16. Liquid level gauge; 17. Pressure gauge; 18. Thermal resistor; 19. Thermometer; 20. Mixed liquid output branch; 21. Check valve; 22. Stop valve; 23. Mixed liquid input side pipe; 24. Mixed liquid output side pipe; 25. Ball valve; 26. Drain pipe.

[0029] 31 Steam inlet; 32 Top outlet; 33 Spray water inlet; 34 Water outlet; 35 Sewage outlet; 36 Liquid level gauge interface; 371 Installation nozzle; 372 Nozzle inspection port; 38 Tank body inspection port; 39 Thermometer and temperature change interface;

[0030] 4 atomizing nozzle; 41 fixed cylinder; 411 lower plug; 412 flange; 42 movable cylinder; 421 blind plate; 422 water inlet section; 423 water outlet section; 424 atomizing hole; 425 upper plug; 43 spring; 44 bolt; 45 pressure strip;

[0031] 5 shower tray; 51 short tube;

[0032] 6: packing section; 61: support ring plate; 62: stainless steel mesh. DETAILED DESCRIPTION

[0033] To make the objectives, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0034] Please refer to Figures 1 to 6 The high-temperature steam recovery device of this embodiment is a normal-pressure container with a vertical tank structure, which is used to recover high-temperature steam;

[0035] The tank is divided into an upper mixing and exchange area and a lower liquid storage area by the height of the high-temperature steam inlet; the mixing and exchange area is provided with an atomizing nozzle 4, a shower tray 5, and a packing section 6 from top to bottom. The atomizing nozzle 4 is centrally arranged at the top of the tank and is used to atomize the cooling water pumped into the tank. The shower tray 5 is located between the atomizing nozzle 4 and the packing section 6 and is used to receive the falling atomized droplets and evenly shower them onto the packing section 6 below. The packing section 6 is provided with at least one layer of packing; the liquid storage area is used to store a mixed liquid formed by the mixing and condensation of high-temperature steam and cooling water, and the mixed liquid can be discharged outward through the water outlet 34 at the bottom of the tank body.

[0036] In a specific implementation, the corresponding structural arrangement of the high-temperature steam recovery device 15 also includes:

[0037] This device utilizes a three-stage absorption structure consisting of spray, water film, and packing, utilizing cooling water to thoroughly absorb high-temperature steam. The recovery tank is constructed of 316L stainless steel, with a diameter of 800mm and dimensions of 1700mm x 800mm x 2600mm. It features a design pressure of 0.098 MPa, a design temperature of 150°C, and an operating temperature of 90°C. The tank is equipped with a steam inlet 31, a top outlet 32, a spray water inlet 33, and a water outlet 34. It also includes a sewage outlet 35, a liquid level gauge 16 interface, a nozzle inspection port 372, a tank inspection port 38, and a temperature gauge and temperature change interface 39.

[0038] The tank body is connected to the vent pipe 11 through the top outlet 32 via a pipe with a stop valve 22 and is communicated with the external atmosphere. This stop valve 22 is normally open.

[0039] The atomizing nozzle 4 is made of 316L stainless steel or carbon steel, and includes a coaxial fixed cylinder 41 and a movable cylinder 42. The cooling water is received from the outside through the water inlet side shaft end. The fixed cylinder 41 is axially through, and the movable cylinder 42 is slidably sleeved in the fixed cylinder 41 along the axial direction. A gap is left between the fixed cylinder 41 and the movable cylinder 42 to form an annular cavity. A spring 43 is built into the annular cavity. The spring 43 is coaxially sleeved on the movable cylinder 42 and is axially tensioned between the movable cylinder 42 and the fixed cylinder 41. The water inlet side shaft end of the movable cylinder 42 is open, and the water outlet side shaft end is passed through the blind plate 4. 21 packaging, the cylinder is divided into a water inlet section 422 and a water outlet section 423 along the axial direction from the water inlet side to the water outlet side. The water inlet section 422 is longer than the water outlet section 423, and the outer peripheral wall of the water inlet section 422 is closed. A number of atomizing holes 424 are evenly spaced on the outer peripheral wall of the water outlet section 423. When the spring 43 is in a natural state, the two axial ends of the movable cylinder 42 and the fixed cylinder 41 are flush. After cooling water is introduced into the movable cylinder 42 from the water inlet side, the movable cylinder 42 can slide toward the water outlet side to the water outlet section 423 by relying on the pressure of the cooling water, so that some or all of the atomizing holes 424 are exposed outside the fixed cylinder 41. The aperture, number and position of the atomizing holes 424 are designed according to the water volume demand. The cooling water becomes water of smaller particle size after passing through the atomizing holes 424 and can be evenly distributed throughout the entire internal space, which can better achieve the material mixing effect. A number of atomizing holes 424 are evenly spaced around the circumference and evenly spaced layer by layer along the axial direction. The atomizing nozzle 4 has a simple design, reliable performance, long service life and self-regulating function. It can discharge water at a constant speed in all working conditions under low pressure drop, thereby achieving good atomization in any working condition from zero to full load.

[0040] The inner wall of the fixed cylinder 41 is provided with a circle of radially protruding lower plugs 411 at the end of the water outlet side, and the outer wall of the movable cylinder 42 is provided with a circle of radially outward-turned upper plugs 425 at the end of the water inlet side. The upper plug 425 maintains sliding contact with the inner wall of the fixed cylinder 41 as the movable cylinder 42 moves. The two axial ends of the annular cavity are respectively sealed by the upper plug 425 and the lower plug 411.

[0041] A vertical mounting nozzle 371 is reserved in the center of the tank's top. The lower end of this nozzle 371 houses the atomizing nozzle 4, while the upper end serves as a nozzle inspection port 372 for nozzle maintenance. The side of this nozzle is connected to the spray water inlet 33. The atomizing nozzle 4 is attached to the mounting nozzle 371 on the water inlet side via a flange 412 on the shaft end of a fixing tube 41, bolts 44, and a pressure strip 45. It can be removed from the outside of the tank, making maintenance easy.

[0042] The cooling water pumped into the tank is transported by a cooling water delivery pipeline 12 connected to the recovery tank. The cooling water delivery pipeline 12 includes a cooling water main pipe 121 and a cooling water bypass 122 connected in parallel with the cooling water main pipe 121; the cooling water main pipe 121 is connected to the spray water inlet 33 in the middle of the top end of the recovery tank body, and cooling water is delivered to the water inlet side shaft end of the atomizing nozzle 4 through the spray water inlet 33. A cooling water regulating valve 13 and two butterfly valves 14 on both sides of the cooling water regulating valve 13 are provided on the pipe section parallel to the cooling water bypass 122. The flow rate of cooling water to be introduced into the recovery tank is adjusted by the cooling water regulating valve 13; a butterfly valve 14 is also provided on the cooling water bypass 122.

[0043] The packing section 6 is equipped with multiple layers of packing. Each layer consists of a circular stainless steel mesh 62 nestled within an annular support ring plate 61. The packing is then positioned on the inner wall of the tank body, separated by the support ring plate 61. The multiple layers of packing are spaced apart along the height of the tank body, forming a single layer of packing. The support ring plate 61 has an outer diameter of 798 mm and an inner diameter of 698 mm. The outer diameter of the stainless steel mesh 62 matches the inner diameter of the support ring plate 61.

[0044] Each layer of filler section 6 is 100 mm thick.

[0045] The shower tray 5 is a plate-like structure, which is separated from the tank body. The tray is formed with a number of short channels that are regularly distributed around the center line of the tank body and vertically penetrate the tank body. The atomized droplets formed by the atomizing nozzle 4 of the cooling water fall evenly through the short channels and fall to the packing section 6. Specifically:

[0046] The pan is equipped with several short tubes 51 running vertically through it, symmetrically distributed around the tank's centerline. These tubes 51 serve as short passages. Multiple 60mm-long DN50 stainless steel short tubes 51 are inserted through the shower pan 5. These short tubes 51 are arranged in groups, spaced evenly along a hexagonal outline. Each group is separated by 150mm of spacing between adjacent short tubes 51. The groups are offset radially from the tank's centerline, with a single short tube 51 positioned centered on the tank's centerline. The shower pan 5 is constructed of 6mm-thick 316L stainless steel with an outer diameter of 798mm.

[0047] A pressure gauge 17 is installed on the upper portion of the recovery tank. A liquid level gauge 16 and a temperature sensor are located in the corresponding areas of the tank, respectively. The level gauge 16 detects the real-time level of the mixed liquid within the tank, while the temperature sensor detects and displays the real-time temperature of the mixed liquid within the tank. The temperature sensors configured for the recovery tank are a thermal resistor 18 and a thermometer 19.

[0048] High-temperature steam enters the recovery tank through the steam inlet 31 in the middle of the tank body.

[0049] The water outlet 34 at the bottom of the tank body is externally connected to a mixed liquid output pipeline with a pressurized water pump 8, and the mixed liquid is output to the outside through the mixed liquid output pipeline.

[0050] Working principle:

[0051] The cooling water pumped to the recovery tank is atomized by the atomizing nozzle 4 and sprayed onto the shower pan 5 and the area above the shower pan 5. As it falls, the atomized liquid droplets fall onto the shower pan 5 and gradually accumulate. Then, it falls through the short channels on the shower pan 5 and is evenly distributed on the packing section 6 below, forming a water film on the packing section 6.

[0052] The high-temperature steam introduced into the recovery tank rises; in the packing section 6, the contact area and contact time between the gas and the liquid are increased by the packing, which promotes the transfer and exchange of heat, fully exchanges heat and mass, and realizes the cooling of the exhaust steam; the remaining high-temperature steam that continues to ascend through the shower tray 5 has been cooled in the packing section 6 before, and is further mixed with the atomized droplets in the atomization area above the shower tray 5 and condensed before falling to the shower tray 5, and then falls through the short channel of the shower tray 5, and falls into the liquid storage area after passing through the packing section 6, thereby realizing the effective recovery of the heat and steam volume of the high-temperature steam.

[0053] The following is a specific application example of the high-temperature steam recovery device 15 represented by exhaust steam recovery. Figure 7The diagram shows the original tofu dryer steam system and the newly added exhaust steam recovery system, including the high-temperature steam recovery device 15. In the original tofu dryer steam system, saturated steam transported by saturated steam main pipe 1 enters steam-water separator 3, where its pressure is adjusted. It then enters rotating drum 5 to dry the material and heat exchanger 6 to heat the air, where it becomes condensate and enters flash tank 7. There, it is separated into condensate and exhaust steam. The condensate is pressurized by a condensate pump and fed into the condensate network pipe, while the exhaust steam is discharged into tofu dryer exhaust pipe 10 and directly discharged into the air from the factory roof.

[0054] This exhaust steam recovery system is used to recover exhaust steam from the steam system of the drum drying equipment in the tobacco making workshop of a cigarette factory. Softened water is taken from the sodium ion exchanger in the power workshop as cooling water. The flow rate is controlled by a cooling water regulating valve 13, and the water is pumped into the tank under pressure. Atomized spraying is performed on the top of the tank. The atomized cooling water is mixed with the flash steam of the condensate from the tobacco drying machine to exchange matter and heat. The temperature of the mixed liquid is controlled at about 85°C, and then it is sent to the condensate official website for recovery through a pressurized water pump 8.

[0055] The exhaust steam recovery system forms two branches with stop valves 22 on the exhaust steam pipe 10 of the tofu drying machine, one of which is connected to the vent pipe 11, and the other branch serves as the exhaust steam inlet pipe 101, connected to the steam inlet 31 in the middle of the recovery tank body; the stop valves 22 on the two branches are opened and closed respectively; when the stop valve 22 on the exhaust steam inlet pipe 101 is normally open, the stop valve 22 on the other branch is normally closed; when the stop valve 22 on the exhaust steam inlet pipe 101 is closed, the stop valve 22 on the other branch is opened.

[0056] The mixed liquid output pipeline consists of two parallel mixed liquid output branches 20. Each mixed liquid output branch 20 is equipped with two butterfly valves 14 and, arranged sequentially along the flow direction between the two butterfly valves 14, a pressurized water pump 8, a pressure gauge 17, and a check valve 21. The input ends of the two mixed liquid output branches 20 converge to form a mixed liquid input side pipeline 23, which connects to the water outlet 34 at the bottom of the recovery tank through the mixed liquid input side pipeline 23. The output ends of the two mixed liquid output branches 20 converge to form a mixed liquid output side pipeline 24. The mixed liquid is then delivered to the condensate pipe network 9 through the mixed liquid output side pipeline 24 equipped with a flow meter 2 and butterfly valve 14. The device also includes a drain line 26 with a ball valve 25. The drain line 26 is connected in parallel with the mixed liquid input side pipeline 23 and connects to the water outlet 34 of the recovery tank. The drain line 26 is used for initial tank cleaning or maintenance.

[0057] The exhaust steam recovery system is also equipped with a PLC automatic control cabinet, and various electric valves, water pumps, flow meters 2, temperature and liquid level instruments are connected to the PLC automatic control cabinet.

[0058] In order to maintain good water quality, PE pipes are used as the pipe material.

[0059] The implementation effect of the exhaust steam recovery system:

[0060] By using the exhaust steam recovery method of the high-temperature condensate water system of the tobacco drying machine, 60kg / h of exhaust steam can be recovered, which means saving water, and 2300kj / kg of heat can be recovered, with a total heat of 138MJ / h, reducing the steam consumption per unit tobacco of the tobacco drying machine.

[0061] Regarding the amount of softened water: the flash steam volume of the tofu drying machine is 0.227t / h, its calorific value is 2679.6kj / kg, the spray cooling water is at a temperature of 25℃ and an enthalpy value of 104.8kj / kg, and the mixed liquid at the outlet 34 is at 90℃ and 376.9kj / kg, so the amount of softened water required is 1.92t / h. On this basis, considering the production fluctuations, operation adjustments, safety margins and other margins, the softened water is calculated at 3t / h.

[0062] The flow rate of the tofu drying machine can be monitored. When the average flow rate reaches the set value for more than the specified time, the exhaust steam recovery system starts to operate and the softened water pump starts to use softened water to cool the condensed water flash steam generated during the operation of the tofu drying machine and recover it to the deaeration water tank in the boiler room.

[0063] Tests have shown that the amount of flash steam generated during tow dryer operation is relatively small. Therefore, the opening of butterfly valve 14 in the softened water supply pipeline for heat recovery should not be too large. Otherwise, the return water temperature will be too low, and upon entering the condensate network 9, it will merge with the high-temperature condensate, which can easily cause water hammer. Based on the test results, the opening of butterfly valve 14 in the softened water supply pipeline was set for recovery tank temperatures below 80°C, 80-85°C, 85-90°C, and above 90°C.

[0064] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to the embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the claims and their equivalents.

Claims

1. A high-temperature steam recovery device, characterized by: It is a normal pressure container with a vertical tank structure, used to recover high-temperature steam; The tank is divided into an upper mixing and exchange area and a lower liquid storage area by the height of the high-temperature steam inlet; the mixing and exchange area is provided with atomizing nozzles, shower trays, and packing sections from top to bottom, the atomizing nozzle is centrally arranged at the top of the tank and is used to atomize the cooling water pumped into the tank; the shower tray is located between the atomizing nozzle and the packing section and is used to receive the falling atomized droplets and evenly shower them onto the packing section below, the packing section being provided with at least one layer of packing; the liquid storage area is used to store a mixed liquid formed by the mixing and condensation of high-temperature steam and cooling water, and the mixed liquid can be discharged outward through the water outlet at the bottom of the tank body.

2. The high-temperature steam recovery device according to claim 1, characterized in that: The atomizing nozzle includes a fixed cylinder and a movable cylinder which are coaxially mounted, and the cooling water supplied from the outside is received through the axial end of the water inlet side. The fixed cylinder is axially passed through, and the movable cylinder is slidably mounted in the fixed cylinder along the axial direction, and a gap is left between the movable cylinder and the fixed cylinder along the radial direction to form a ring cavity. A spring is built into the ring cavity, and the spring is coaxially mounted on the movable cylinder and axially tensioned between the movable cylinder and the fixed cylinder. The axial end of the movable cylinder on the water inlet side is open, and the axial end on the water outlet side is packaged by a blind plate. The cylinder body is divided into a water inlet section and a water outlet section along the axial direction from the water inlet side to the water outlet side. The length of the water inlet section is greater than that of the water outlet section. The outer peripheral wall of the water inlet section is closed, and a number of atomizing holes are evenly spaced on the outer peripheral wall of the water outlet section. When the spring is in a natural state, the two axial ends of the movable cylinder and the fixed cylinder are flush. After cooling water is introduced into the movable cylinder from the water inlet side, the movable cylinder can rely on the pressure of the cooling water to slide toward the water outlet side until some or all of the atomizing holes in the water outlet section are exposed outside the fixed cylinder.

3. The high-temperature steam recovery device according to claim 2, characterized in that: The cooling water pumped into the tank is transported by a cooling water delivery pipeline external to the recovery tank, and the cooling water delivery pipeline includes a cooling water main and a cooling water bypass connected in parallel with the cooling water main; the cooling water main is connected to the spray water inlet in the middle of the top end of the recovery tank body, and cooling water is delivered to the water inlet side shaft end of the atomizing nozzle through the spray water inlet. A cooling water regulating valve and two butterfly valves on both sides of the cooling water regulating valve are provided on the pipe section parallel to the cooling water bypass, and the flow rate of cooling water to be introduced into the recovery tank is adjusted by the cooling water regulating valve; a butterfly valve is also provided on the cooling water bypass.

4. The high-temperature steam recovery device according to claim 1, characterized in that: The packing section is provided with multiple layers of packing, and the structure of each layer of packing is: a circular stainless steel mesh is arranged in a circular support ring plate to form a packing sheet, and the packing sheet is then arranged on the inner wall of the tank body through the support ring plate and horizontally separated in the tank body. The multiple layers of packing sheets are distributed at intervals along the height direction of the tank body to form a layer of packing.

5. The high-temperature steam recovery device according to claim 1 or 4, characterized in that: Each layer of filler is 100mm thick.

6. The high-temperature steam recovery device according to claim 1, characterized in that: The shower pan is a plate-like structure, which is horizontally separated in the tank body. A number of short channels are formed on the pan body, which are regularly distributed around the center line of the tank body and vertically penetrate the pan body. The atomized droplets formed by the cooling water passing through the atomizing nozzles fall evenly to the filling section through the short channels.

7. The high-temperature steam recovery device according to claim 1, characterized in that: A pressure gauge is provided on the upper part of the recovery tank body; a liquid level meter and a temperature detection element are respectively provided in the area of the tank body corresponding to the liquid storage area. The real-time liquid level of the mixed liquid in the tank is detected by the liquid level meter, and the real-time temperature of the mixed liquid in the tank is detected and displayed by the temperature detection element.

8. The high-temperature steam recovery device according to claim 1, characterized in that: High-temperature steam enters the recovery tank through the steam inlet in the middle of the tank body.

9. The high-temperature steam recovery device according to claim 1, characterized in that: The water outlet at the bottom of the tank body is externally connected to a mixed liquid output pipeline with a pressurized water pump, and the mixed liquid is output to the outside through the mixed liquid output pipeline.

Images