Cooling water recovery device for low-pressure steam cooling
By designing a cooling water recovery device for low-pressure steam cooling, the problem of condensate in the pressurized gasification process of aerospace pulverized coal has been solved, and efficient resource recovery and energy consumption have been achieved.
Patent Information
- Application Number
- CN202421419816.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-20
- Publication Date
- 2025-04-25
- Estimated Expiration
- 2034-06-20
AI Technical Summary
In the pressurized gasification process of aerospace pulverized coal, the condensate generated by low-pressure steam cooling cannot be effectively recycled and utilized, resulting in waste of resources and increased energy consumption.
A cooling water recovery device for low-pressure steam cooling is designed, which accelerates steam condensation through the cooling box, and divides the water tank into two upper and lower spaces using a mobile plate. The cooling water on the upper side is preferred. When it is used up, the condensation water on the lower side is cooled to achieve a good cycle.
Effectively recycle and utilize condensate, replace the original cold water consumption, reduce water resource consumption and energy consumption, and reduce the burden on water treatment systems.
Smart Images
Figure CN222797554U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of waste water recycling, in particular to a cooling water recovery device for low-pressure steam cooling. Background Art
[0002] Since the first aerospace furnace was successfully put into operation in 2008, the aerospace pulverized coal pressurized gasification technology has been gradually promoted and applied in the production of coal-to-methanol and synthetic ammonia. Reducing the energy consumption of the gasification unit has become an urgent requirement for the factory. Continuously optimizing the process flow of the aerospace pulverized coal pressurized gasification technology is an effective way to reduce energy consumption. The water treatment process of the successfully operated aerospace pulverized coal gasification unit uses a typical two-stage flash water treatment process.
[0003] At present, the slag and ash water unit process in the aerospace pulverized coal pressurized gasification process is as follows: the black water from the gasifier quenching chamber and the bottom of the washing tower is flashed in the high-pressure flash tank body and the low-pressure flash tank. The steam generated can be used for steam turbine power generation. After the high-pressure steam works in the steam turbine, it is cooled and becomes condensed water, which is generally discharged directly for treatment.
[0004] However, during the processing, the cooling of the generator and the cleaning of the flash tank still require a large amount of cold water, and the discharged condensed waste water can just make up for the consumption. For this reason, we propose a cooling water recovery device for low-pressure steam cooling. Utility Model Content
[0005] The technical problem to be solved by the utility model is to overcome the existing defects, provide a cooling water recovery device for low-pressure steam cooling, store condensed water, use the condensed water that has dissipated heat to water-cool the generator set body, condense the low-pressure air, and flush the flash tank, thereby replacing the originally planned water use, reducing costs, and effectively solving the problems in the background technology.
[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a cooling water recovery device for low-pressure steam cooling, comprising a generator set body, wherein the turbine exhaust port in the generator set body is connected to the condensation chamber on the left side inside the cooling box, and two water tanks are arranged side by side laterally on the lower side of the cooling box, and the bottom of the condensation chamber is connected to the lower part of the water tank on the left side through pipe three, and the two water tanks are connected through a circular pipe, and the two water tanks are the same, and a motor is fixedly connected to the middle of the lower surface of the water tank, and the input end of the motor is electrically connected to the output end of an external power supply through an external control switch, and the output shaft of the motor passes through the bottom of the water tank. The circular hole extends to the interior of the water tank and is fixedly connected to the lower end of the screw rod. A movable plate is arranged inside the water tank, and sliders are fixedly connected to the side surface of the movable plate at equal angles. Each slider is slidably connected to a slide groove arranged at a corresponding position on the inner wall of the water tank. A through groove is arranged on the movable plate, and a baffle is arranged at an upper position of the inner part of the water tank and the through groove. The baffle is slidably connected to a slide rod fixedly connected to a corresponding position on the movable plate through the sliding hole. The upper end of the water tank on the left is connected to the cooling liquid chamber on the right side of the cooling box through a pipe four, and the upper part of the water tank on the right is connected to the inlet of the heat dissipation water cooling pipe of the generator set body through a pipe five.
[0007] Design a cooling box to accelerate the condensation of steam into water, thereby increasing the speed of mobile phone waste water, design a heat exchange with steam by cooling waste water, thereby saving losses, design a moving plate, thereby dividing the water tank into two spaces, upper and lower, through the moving plate, so that the condensed water that has not been completely cooled is introduced into the lower side of the moving plate to wait for cooling, so as to give priority to the cooling water on the upper side of the moving plate, so that when the cooling water on the upper side is used up, the condensed water on the lower side is cooled, thereby achieving a good cycle, when the steam discharged from the generator set body enters the condensation chamber of the cooling box, it is exchanged with the cold water in the coolant chamber Heat, after the heat exchange is completed, it enters the water tank on the left through pipe three for storage. At this time, the cold water in the cooling box needs to be replaced due to the increase in heat exchange temperature, and then the motor is controlled by the external control switch to drive the moving plate to move up. Because of the water pressure, the baffle blocks the through groove, thereby gradually squeezing the water in the water tank on the left into the coolant cavity in the cooling box, thereby squeezing out the heated water, thereby completing the replacement. The newly generated condensed water enters the lower side of the moving plate in the water tank, and waits for use after heat dissipation. The water in the water tank on the right enters the heat dissipation water cooling pipe of the generator set body through pipe five to cool the generator.
[0008] Furthermore, the recovery device also includes a high-pressure flash tank body, and the gas outlet end of the high-pressure flash tank body is connected to the turbine inlet in the generator set body.
[0009] The black water is separated into gas and liquid through the high-pressure flash tank body, so that the remaining impurities are discharged to subsequent tools, and high-temperature steam is generated for power generation.
[0010] Furthermore, the recovery device also includes a low-pressure flash tank body, the discharge port of the high-pressure flash tank body is connected to the liquid inlet of the low-pressure flash tank body, the exhaust port of the low-pressure flash tank body is connected to the condensation chamber on the left side of the cooling box through pipeline 2, and the discharge port of the low-pressure flash tank body is connected to the sedimentation tank.
[0011] The low-pressure flash tank body is designed to evaporate and concentrate again through secondary flash evaporation, so as to recover the remaining coal powder. Pipeline 2 is designed to connect to the condensation chamber to condense the low-pressure steam discharged from the low-pressure flash tank body.
[0012] Furthermore, the recovery device also includes a pipeline six, and the outlet of the heat dissipation water cooling pipeline of the generator set body is connected to the high-pressure flash tank body cleaning pipeline through the pipeline six.
[0013] The water discharged from the heat dissipation and water cooling pipe of the generator set body is used to flush the interior of the high-pressure flash tank body, thereby entraining the residual coal powder into the low-pressure flash tank body to flush the residual coal powder in the low-pressure flash tank body, and then discharged into the sedimentation tank, thereby cleaning the flash tank.
[0014] Furthermore, the recovery device also includes a heat pipe, which is fixedly connected to the water tank. The upper and lower ends of the heat pipe extend to the outside of the water tank through circular holes opened on the water tank and are fixedly connected to the upper and lower ends of the heat dissipation plate. The movable plate is slidably connected to the heat pipe through the sliding holes opened.
[0015] The heat pipe and heat sink are designed to quickly dissipate the heat of warm water, so that the recycled water can quickly reach a lower temperature.
[0016] Compared with the prior art, the beneficial effects of the utility model are: the waste heat power generation water recovery device has the following advantages:
[0017] 1. Design a cooling box to accelerate the condensation of steam into water, thereby increasing the speed of mobile phone wastewater. The design uses cooled wastewater to exchange heat with steam, thereby saving losses;
[0018] 2. Design a moving plate to divide the water tank into two spaces, upper and lower, so that the condensed water that has not yet been completely cooled can be introduced to the lower side of the moving plate to wait for cooling. When the cooling water on the upper side is used up, the condensed water on the lower side is completely cooled, thus achieving a good cycle;
[0019] 3. The water discharged from the heat dissipation water cooling pipe of the generator set body is used to flush the interior of the high-pressure flash tank body, thereby entraining the residual coal powder into the low-pressure flash tank body to flush the residual coal powder in the low-pressure flash tank body, and then discharged into the sedimentation tank to clean the flash tank. BRIEF DESCRIPTION OF THE DRAWINGS
[0020] Figure 1 It is a schematic diagram of the structure of the utility model;
[0021] Figure 2 It is a schematic diagram of the structure of the water tank 9 of the utility model;
[0022] Figure 3 This is a schematic diagram of the internal structure of the water tank 9 of the utility model;
[0023] Figure 4 It is a schematic diagram of the structure of the cooling box 4 of the utility model.
[0024] In the figure: 1 high-pressure flash tank body, 2 pipeline one, 3 generator set body, 4 cooling box, 5 low-pressure flash tank body, 6 pipeline two, 7 sedimentation tank, 8 pipeline three, 9 water tank, 10 motor, 11 screw, 12 moving plate, 13 sliding rod, 14 baffle, 15 heat pipe, 16 heat sink, 17 pipeline four, 18 pipeline five, 19 pipeline six. DETAILED DESCRIPTION
[0025] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of them. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0026] See also Figure 1-4 The present embodiment provides a technical solution: a cooling water recovery device for cooling low-pressure steam, including a generator set body 3, a turbine exhaust port in the generator set body 3 connected to a condensation chamber on the left side of a cooling box 4, two water tanks 9 are arranged side by side laterally on the lower side of the cooling box 4, the bottom of the condensation chamber is connected to the lower part of the water tank 9 on the left side through a pipe 3 8, the two water tanks 9 are connected through a circular pipe, the two water tanks 9 are the same, a motor 10 is fixedly connected to the middle of the lower surface of the water tank 9, the input end of the motor 10 is electrically connected to the output end of an external power supply through an external control switch, and the output shaft of the motor 10 extends to the water tank 9 through a circular hole opened at the bottom of the water tank 9 , and fixedly connected to the lower end of the screw 11, a movable plate 12 is arranged inside the water tank 9, and sliders are fixedly connected to the side surfaces of the movable plate 12 at equal angles, and each slider is slidably connected to a slide groove opened at a corresponding position of the inner wall of the water tank 9, and a through groove is opened on the movable plate 12. A baffle 14 is arranged at an upper position of the water tank 9 and the through groove, and the baffle 14 is slidably connected to a slide rod 13 fixedly connected to a corresponding position on the movable plate 12 through the opened sliding hole. The upper end of the water tank 9 on the left side is connected to the cooling liquid chamber on the right side of the cooling box 4 through a pipe four 17, and the upper part of the water tank 9 on the right side is connected to the heat dissipation water cooling pipe inlet of the generator set body 3 through a pipe five 18.
[0027] The cooling box 4 is designed to accelerate the condensation of steam into water through the cooling box 4, thereby increasing the speed of mobile phone waste water. The design uses the cooled waste water to exchange heat with steam, thereby saving losses. The movable plate 12 is designed to divide the water tank 9 into two upper and lower spaces through the movable plate 12, so that the condensed water that has not been completely cooled is introduced into the lower side of the movable plate 12 to wait for cooling, so that the cooling water on the upper side of the movable plate 12 is used first. When the cooling water on the upper side is used up, the condensed water on the lower side is cooled, thereby achieving a good cycle. When the steam discharged from the generator set body 3 enters the condensation chamber of the cooling box 4, it exchanges heat with the cold water in the coolant chamber. After the heat exchange is completed, it enters the water tank 9 on the left for storage through pipe three 8. At this time, the cold water in the cooling box 4 needs to be replaced due to the increase in heat exchange temperature, and then the motor 10 is controlled by the external control switch to work, thereby driving the movable plate 12 to move upward. Due to the water pressure, the baffle 14 blocks the through groove, thereby gradually squeezing the water in the water tank 9 on the left into the coolant chamber in the cooling box 4, thereby squeezing out the heated water, thereby completing the replacement. The newly generated condensed water enters the lower side of the moving plate 12 in the water tank 9, and waits for use after heat dissipation. The water in the water tank on the right enters the heat dissipation water cooling pipe of the generator set body 3 through pipe five 18 to perform water cooling on the generator.
[0028] The recovery device further comprises a high-pressure flash tank body 1 , the gas outlet end of the high-pressure flash tank body 1 is connected to the turbine air inlet in the generator set body 3 .
[0029] The black water is separated into gas and liquid by the high-pressure flash tank body 1, so that the remaining impurities are discharged to the subsequent tools, and high-temperature steam is generated for power generation.
[0030] The recovery device also includes a low-pressure flash tank body 5, the discharge port of the high-pressure flash tank body 1 is connected to the liquid inlet of the low-pressure flash tank body 5, the exhaust port of the low-pressure flash tank body 5 is connected to the condensation chamber on the left side of the cooling box 4 through the pipeline 2 6, and the discharge port of the low-pressure flash tank body 5 is connected to the sedimentation tank 7.
[0031] The low-pressure flash tank body 5 is designed to evaporate and concentrate again through secondary flash evaporation, so as to recover the remaining coal powder. The pipeline 2 6 is designed to connect to the condensation chamber to condense the low-pressure steam discharged from the low-pressure flash tank body 5.
[0032] The recovery device also includes a pipeline 6 19, and the outlet of the heat dissipation water cooling pipeline of the generator set body 3 is connected to the cleaning pipeline of the high-pressure flash tank body 1 through the pipeline 6 19.
[0033] The water discharged from the heat dissipation water cooling pipe of the generator set body 3 flushes the interior of the high-pressure flash tank body 1, thereby entraining the residual coal powder into the low-pressure flash tank body 5 to flush the residual coal powder in the low-pressure flash tank body 5, and then discharges it into the sedimentation tank 7, thereby cleaning the flash tank.
[0034] The recovery device also includes a heat pipe 15, which is fixedly connected to the water tank 9. The upper and lower ends of the heat pipe 15 extend to the outside of the water tank 9 through the circular holes opened on the water tank 9 and are fixedly connected to the upper and lower ends of the heat dissipation plate 16. The movable plate 12 is slidably connected to the heat pipe 15 through the sliding holes opened.
[0035] The heat pipe 15 and the heat sink 16 are designed to cooperate to quickly dissipate the heat of the warm water, so that the recovered water quickly reaches a lower temperature.
[0036] The working principle of the cooling water recovery device for low-pressure steam cooling provided by the utility model is as follows:
[0037] When the steam discharged from the generator set body 3 enters the condensation chamber of the cooling box 4, it exchanges heat with the cold water in the cooling liquid chamber. After the heat exchange is completed, it enters the water tank 9 on the left side for storage through the pipe three 8. At this time, the cold water in the cooling box 4 needs to be replaced due to the increase in heat exchange temperature. Then, the motor 10 is controlled by the external control switch to work, thereby driving the movable plate 12 to move upward. Because of the water pressure, the baffle 14 blocks the through groove, thereby gradually squeezing the water in the water tank 9 on the left side into the cooling liquid chamber in the cooling box 4, thereby squeezing out the heated water, thereby completing the replacement. The newly generated condensed water enters the lower side of the moving plate 12 in the water tank 9, and waits for use after heat dissipation. The water in the water tank on the right side enters the heat dissipation water cooling pipe of the generator set body 3 through the pipe five 18 to water-cool the generator. The water discharged from the heat dissipation water cooling pipe of the generator set body 3 flushes the inside of the high-pressure flash tank body 1, thereby entraining the residual coal powder into the low-pressure flash tank body 5 to flush the residual coal powder in the low-pressure flash tank body 5, and then discharges it into the sedimentation tank 7, thereby cleaning the flash tank.
[0038] It is worth noting that the motor group body 3 disclosed in the above embodiment adopts an ORC generator set, and the method commonly used in the prior art is used to control the operation of the motor 10 through an external control switch.
[0039] The above description is only an embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.
Claims
1. A cooling water recovery device for cooling low-pressure steam, characterized by: The invention comprises a generator set body (3), wherein the turbine exhaust port in the generator set body (3) is connected to the condensation chamber on the left side of the cooling box (4), two water tanks (9) are arranged side by side laterally on the lower side of the cooling box (4), the bottom of the condensation chamber is connected to the lower part of the water tank (9) on the left side through a pipe 3 (8), the two water tanks (9) are connected through a round pipe, the inside of the two water tanks (9) are the same, a motor (10) is fixedly connected to the middle part of the lower side surface of the water tank (9), the input end of the motor (10) is electrically connected to the output end of an external power supply through an external control switch, the output shaft of the motor (10) passes through a round hole opened at the bottom of the water tank (9) and extends to the inside of the water tank (9), and is fixedly connected with a screw rod (11 ), a movable plate (12) is arranged inside the water tank (9), the side surface of the movable plate (12) is fixedly connected with sliders at equal angles, each slider is slidably connected with a slide groove provided at a corresponding position of the inner wall of the water tank (9), a through groove is provided on the movable plate (12), a baffle plate (14) is arranged at a position above the through groove in the water tank (9), the baffle plate (14) is slidably connected with a slide rod (13) fixedly connected at a corresponding position on the movable plate (12) through a sliding hole provided therein, the upper end of the water tank (9) on the left side is connected to the cooling liquid chamber on the right side of the cooling box (4) through a pipe four (17), and the upper part of the water tank (9) on the right side is connected to the heat dissipation water cooling pipe inlet of the generator set body (3) through a pipe five (18).
2. The cooling water recovery device for low-pressure steam cooling according to claim 1, characterized in that: The recovery device further comprises a high-pressure flash tank body (1), the gas outlet end of the high-pressure flash tank body (1) being connected to the gas inlet of the turbine in the generator set body (3).
3. The cooling water recovery device for low-pressure steam cooling according to claim 2 is characterized in that: The recovery device further comprises a low-pressure flash tank body (5), the liquid discharge port of the high-pressure flash tank body (1) being connected to the liquid inlet port of the low-pressure flash tank body (5), the exhaust port of the low-pressure flash tank body (5) being connected to the condensation chamber on the left side inside the cooling box (4) through a second pipe (6), and the liquid discharge port of the low-pressure flash tank body (5) being connected to a sedimentation tank (7).
4. The cooling water recovery device for low-pressure steam cooling according to claim 3 is characterized in that: The recovery device also includes a pipeline six (19), and the outlet of the heat dissipation water cooling pipeline of the generator set body (3) is connected to the cleaning pipeline of the high-pressure flash tank body (1) through the pipeline six (19).
5. The cooling water recovery device for low-pressure steam cooling according to claim 4, characterized in that: The recovery device further comprises a heat conducting pipe (15), the heat conducting pipe (15) being fixedly connected inside the water tank (9), the upper and lower ends of the heat conducting pipe (15) extending to the outside of the water tank (9) through circular holes provided on the water tank (9), and being fixedly connected to the upper and lower ends of the heat dissipation plate (16), and the movable plate (12) being slidably connected to the heat conducting pipe (15) via the sliding holes provided therein.