A twin-screw compression system for a steam autoclave

Abstract

This utility model discloses a twin-screw compression system for a steam autoclave, relating to the field of steam power system technology. The system includes an autoclave, a flash tank, a screw workstation, a steam distributor, a small steam distributor, a water storage tank, a heat exchanger tank, a cylindrical tank, and a water collection pool below the autoclave. The screw workstation guides and pressurizes the tail steam from the autoclave; the steam distributor and small steam distributor allocate steam for reuse or supply to auxiliary equipment; the flash tank treats high-pressure condensate; and the heat exchanger tank and water storage tank achieve heat recovery and boiler feedwater supply. This utility model can efficiently recover and utilize steam and condensate, improving energy utilization and reducing operating costs.

Description

Technical Field

[0001] This utility model relates to the field of steam power system technology, and in particular to a twin-screw compression system for a steam reactor. Background Technology

[0002] In industrial production, autoclaves are widely used for the curing of materials such as aerated concrete, generating large amounts of steam and condensate. In traditional systems, the exhaust steam and condensate from the autoclave are often directly discharged or simply treated, leading to energy waste and low thermal efficiency. Current technologies lack efficient steam recovery and comprehensive utilization solutions, and system energy efficiency needs improvement. Therefore, a system capable of efficiently recovering and utilizing steam and condensate is needed to reduce energy consumption and operating costs. Utility Model Content

[0003] The purpose of this invention is to provide a twin-screw compression system for steam reactors to solve the problems existing in the prior art.

[0004] The above-mentioned technical objective of this utility model is achieved through the following technical solution:

[0005] A twin-screw compressor system for a steam autoclave includes: an autoclave for generating steam and condensate; a flash tank located downstream of the autoclave for receiving high-pressure condensate from the autoclave and performing flash evaporation; a screw workstation located between the flash tank and the steam distributor for guiding and pressurizing the tail steam; a steam distributor located downstream of the screw workstation for distributing the pressurized steam back to the autoclave; a small steam distributor located in the bypass of the steam distributor for supplying steam to the heating and drying equipment; a water storage tank located in the system's makeup water circuit for storing hot water and supplying water to the boiler; a heat exchanger tank located upstream of the water storage tank for heat exchange with the lower water collection tank; a storage tank group including a first circular tank, a second circular tank, and a third circular tank, which are interconnected and used to store condensate and tail steam; and a lower water collection tank located on one side of the autoclave for collecting condensate and discharging it into the heat exchanger tank.

[0006] By adopting the above technical solutions, a comprehensive system integrating steam boosting and recovery, condensate flash evaporation utilization, and waste heat cascade recovery was constructed, which significantly improved the energy utilization efficiency of the entire steam power system.

[0007] In a further embodiment, the autoclave exhaust gas is connected to a screw compressor station via a pipeline, the screw compressor station is connected to a steam distributor via a pipeline, and the steam distributor is connected back to the autoclave via a pipeline.

[0008] In a further embodiment, the small steam cylinder is connected to the incubation chamber, the static chamber, and the mesh drying chamber via pipes for heating and drying.

[0009] In a further embodiment, the outlet of the flash tank is connected to the incubation room to provide steam heating after flashing.

[0010] In a further embodiment, the water collection tank under the vessel is connected to the heat exchange tank via a pipe for heat exchange.

[0011] In a further embodiment, the hot water exchange tank is connected to a water storage tank via a pipe for replenishing hot water.

[0012] In a further embodiment, the water storage tank is connected to the boiler via a pipe to increase the boiler inlet water temperature.

[0013] In a further embodiment, the first cylindrical tank is used to receive the overflow of condensate after heat exchange, and the second and third cylindrical tanks are used to store the low-pressure portion of the tail steam.

[0014] In a further embodiment, the system further includes an electric valve, which is installed on the exhaust pipe of the autoclave and is used to control the switching between high and low pressure exhaust.

[0015] In a further embodiment, the system also includes a ball mill, and the condensate is supplied to the ball mill.

[0016] In summary, this utility model has the following beneficial effects:

[0017] 1. By setting up a screw workstation, steam distributor and small steam distributor, the tail steam of the autoclave can be pressurized and accurately distributed and reused in the main process and auxiliary links, which can significantly reduce the consumption of fresh steam.

[0018] 2. By setting up a flash tank, hot water exchange tank, water storage tank and bottom water collection pool, the condensate and its carried heat energy can be recovered and utilized in stages, which can significantly improve the overall thermal efficiency of the system and reduce boiler fuel costs and cooling water consumption. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of the twin-screw compression system for the steam reactor of this utility model.

[0020] In the diagram, 1. Autoclave; 2. Flash tank; 3. Screw workstation; 4. Steam separator; 5. Small steam separator; 6. Water tank; 7. Hot water tank; 8. First round tank; 9. Second round tank; 10. Third round tank; 11. Water collection pool below the autoclave; 12. Nursery; 13. Static room; 14. Mesh drying room. Detailed Implementation

[0021] The present invention will be further described in detail below with reference to the accompanying drawings.

[0022] Identical parts are indicated by the same reference numerals. It should be noted that the terms "front," "rear," "left," "right," "upper," and "lower" used in the following description refer to the attached figures. Figure 1 In this specification, the terms "bottom surface" and "top surface," "inner" and "outer" refer to the direction toward or away from the geometry of a specific component. 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 technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this specification, "a plurality of" means two or more, unless otherwise explicitly and specifically defined by the direction of the center.

[0023] Example 1:

[0024] like Figure 1 As shown, a twin-screw compression system for a steam autoclave includes: an autoclave 1 for generating steam and condensate; a flash tank 2, located downstream of the autoclave 1, for receiving and flashing the high-pressure condensate from the autoclave 1; a screw workstation 3, located between the flash tank 2 and the steam distributor 4, for guiding and pressurizing the tail steam; the steam distributor 4, located downstream of the screw workstation 3, for distributing the pressurized steam back to the autoclave 1; and a small steam distributor 5, located as a bypass of the steam distributor 4, for supplying... The system includes a steam-powered drying and heating system; a water storage tank 6, located in the system's makeup water circuit, for storing hot water and supplying water to the boiler; a hot water exchange tank 7, located upstream of the water storage tank 6, for heat exchange with the boiler's under-boiler water collection tank 11; and a storage tank group comprising a first circular tank 8, a second circular tank 9, and a third circular tank 10, all interconnected, for storing condensate and tail steam; and the boiler's under-boiler water collection tank. Pool 11, located on one side of the autoclave 1, is used to collect condensate and discharge it into the heat exchange tank 7. The exhaust gas from the autoclave 1 is connected to the screw workstation 3 via a pipeline. The screw workstation 3 is connected to the steam distributor 4 via a pipeline. The steam distributor 4 is connected back to the autoclave 1 via a pipeline. The small steam distributor 5 is connected to the incubation chamber 12, the static chamber 13, and the mesh drying chamber 14 via pipelines for heating and drying. The outlet of the flash tank 2 is connected to the incubation chamber to provide steam for heating after flash evaporation. The water collection pool 11 under the autoclave is connected to the heat exchange tank 7 via a pipeline for heat exchange. The heat exchange tank 7 is connected to the water storage tank 6 via a pipeline for replenishing hot water. The water storage tank 6 is connected to the boiler via a pipeline to increase the boiler inlet water temperature. The first round tank 8 is used to receive the overflow of condensate after heat exchange. The second round tank 9 and the third round tank 10 are used to store the low-pressure exhaust steam. The system also includes an electric valve, which is located on the exhaust pipe of the autoclave 1 to control the switching between high and low pressure exhaust steam. The system also includes a ball mill, and the condensate is supplied to the ball mill.

[0025] Specific implementation process: The autoclave 1 is located at the beginning of the system to generate steam and condensate; by adopting the above technical solution, the autoclave 1 serves as the steam source, providing the main power for the system. The flash tank 2 is located downstream of the autoclave 1 to receive the high-pressure condensate from the autoclave 1 and perform flash evaporation; by adopting the above technical solution, the flash tank 2 converts the high-pressure condensate into low-pressure steam for heating and heat energy recovery. The screw compressor station 3 is located between the flash tank 2 and the steam distributor 4 to guide and pressurize the tail steam; by adopting the above technical solution, the screw compressor station 3 increases the tail steam pressure and temperature, enabling its reuse. The steam distributor 4 is located downstream of the screw compressor station 3 to distribute the pressurized steam back to the autoclave 1 for reuse; by adopting the above technical solution, the steam distributor 4 achieves steam circulation and distribution, improving system efficiency. The small steam distributor 5 is located in the bypass of the steam distributor 4 to supply steam to the drying and heating equipment; by adopting the above technical solution, the small steam distributor 5 provides steam to auxiliary equipment, enhancing system flexibility. A water storage tank 6 is installed in the system's makeup water circuit to store hot water and supply water to the boiler. By adopting the above technical solution, the water storage tank 6 provides preheated makeup water, improving boiler thermal efficiency. A heat exchanger tank 7 is located upstream of the water storage tank 6 for heat exchange with the under-boiler water collection tank 11. By adopting the above technical solution, the heat exchanger tank 7 recovers waste heat from the condensate, reducing energy waste. The first circular tank 8, the second circular tank 9, and the third circular tank 00 are interconnected and used to store condensate and exhaust steam. By adopting the above technical solution, the circular tank system buffers and stores the medium, ensuring stable system operation. The under-boiler water collection tank is located below the autoclave 1 to collect condensate and discharge it into the heat exchanger tank 7. By adopting the above technical solution, the under-boiler water collection tank centrally treats the condensate, facilitating heat recovery. The system also includes an electric valve installed on the autoclave's exhaust pipe to control the switching between high and low pressure exhaust steam. By adopting the above technical solution, the electric valve achieves automatic exhaust steam control, improving system adaptability. The system also includes a ball mill, and condensate is supplied to the ball mill. By adopting the above technical solution, condensate is used in the ball mill process, realizing comprehensive utilization of resources.

[0026] The autoclave generates steam and condensate. The exhaust steam is pressurized by a screw compressor station and then reused via a steam distributor or supplied to auxiliary equipment via a small steam distributor. High-pressure condensate enters a flash tank for flash evaporation, and the steam is used for heating. The condensate then enters a collection tank at the bottom of the autoclave. A heat exchanger tank exchanges heat with the collection tank, heating and replenishing the water. A water storage tank provides hot water to the boiler. A cylindrical tank stores condensate and exhaust steam, and an electric valve controls the exhaust mode. This invention achieves efficient energy utilization and is suitable for industrial steam systems.

[0027] In the embodiments disclosed in this utility model, the terms "installation," "connection," "linking," and "fixing" should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; "linking" can be a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in the embodiments disclosed in this utility model according to the specific circumstances.

[0028] This specific embodiment is merely an explanation of the present utility model and is not intended to limit the present utility model. After reading this specification, those skilled in the art can make modifications to this embodiment without contributing any inventive step, but as long as they are within the scope of the claims of the present utility model, they are protected by patent law.

Claims

1. A twin-screw compression system for a steam autoclave, characterized in that, include: An autoclave (1) is used to generate steam and condensate; Flash tank (2) is located downstream of autoclave (1) and is used to receive high-pressure condensate from autoclave (1) and perform flash evaporation; The screw workstation (3) is located between the flash tank (2) and the steam distribution cylinder (4) and is used to guide and pressurize the tail steam. The steam distribution cylinder (4) is located downstream of the screw workstation (3) and is used to distribute the pressurized steam back to the autoclave (1) for use. Small steam distribution cylinder (5) is installed in the bypass of steam distribution cylinder (4) and is used to supply steam to the breeding, static drying and heating equipment; A water storage tank (6) is installed in the system's water supply loop to store hot water and supply water to the boiler; The hot water tank (7) is located upstream of the water storage tank (6) and is used for heat exchange with the water collection pool (11) below the vessel. The storage tank group includes a first circular tank (8), a second circular tank (9) and a third circular tank (10), and the first circular tank (8), the second circular tank (9) and the third circular tank (10) are interconnected. The first circular tank (8), the second circular tank (9) and the third circular tank (10) are used to store condensate and exhaust steam. The lower water collection tank (11) is located on one side of the autoclave (1) and is used to collect condensate and discharge it into the heat exchange tank (7).

2. The twin-screw compression system for a steam autoclave according to claim 1, characterized in that: The exhaust gas from the autoclave (1) is connected to the screw working station (3) via a pipeline. The screw working station (3) is connected to the steam distribution cylinder (4) via a pipeline. The steam distribution cylinder (4) is connected back to the autoclave (1) via a pipeline.

3. The twin-screw compression system for a steam autoclave according to claim 1, characterized in that: The small steam cylinder (5) is connected to the incubation room (12), the static chamber (13) and the mesh drying chamber (14) through pipes for heating and drying.

4. The twin-screw compression system for a steam autoclave according to claim 1, characterized in that: The outlet of the flash tank (2) is connected to the nursery room to provide steam heating after flashing.

5. The twin-screw compression system for a steam reactor according to claim 1, characterized in that: The water collection tank (11) under the vessel is connected to the heat exchange tank (7) through a pipe for heat exchange.

6. The twin-screw compression system for a steam autoclave according to claim 1, characterized in that: The hot water exchange tank (7) is connected to the water storage tank (6) via a pipe for replenishing hot water.

7. The twin-screw compression system for a steam autoclave according to claim 1, characterized in that: The water storage tank (6) is connected to the boiler via a pipe to increase the boiler inlet water temperature.

8. The twin-screw compression system for a steam autoclave according to claim 1, characterized in that: The first round tank (8) is used to receive the overflow of condensate after heat exchange, and the second round tank (9) and the third round tank (10) are used to store the tail steam of the low-pressure section.

9. The twin-screw compression system for a steam autoclave according to claim 1, characterized in that: The system also includes an electric valve, which is installed on the exhaust pipe of the autoclave (1) and is used to control the switching between high and low pressure exhaust.

10. The twin-screw compression system for a steam autoclave according to claim 1, characterized in that: The system also includes a ball mill, and the condensate is supplied to the ball mill.

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