A circulating water energy recovery device

Abstract

This utility model relates to the field of circulating water utilization technology and discloses a circulating water energy recovery device, including a circulating water channel. A mounting frame is fixedly installed on the right end of the upper surface of the circulating water channel, and a baffle is fixedly installed on the inner wall of the circulating water channel. Two turbines are fixedly installed at the front end of the inner wall of the circulating water channel. An auxiliary mechanism is set on the circulating water channel, and the auxiliary mechanism includes a guide plate and a scraper. The guide plate is fixedly installed at the front end of the inner wall of the circulating water channel. By reducing the flow velocity through the turbines, and with the rectification effect of the guide plate, the scouring force on the inner wall of the water channel is reduced, thus reducing its wear. The guide plate sorts the water flow, so that the turbines are subjected to uniform force, reducing the kinetic energy loss caused by water flow turbulence. The baffle intercepts impurities, preventing the turbine blades from being blocked or worn, maintaining the long-term stable operation of the turbines, thereby reducing the waste of manpower and material resources, reducing the operating cost of the steam turbine condenser equipment in the power plant, and improving production efficiency.

Description

Technical Field

[0001] This utility model relates to the field of circulating water utilization technology, specifically a circulating water energy recovery device. Background Technology

[0002] Circulating water is a key heat exchange medium in the condenser equipment of power plant steam turbines. It is usually made of surface water or well water. It flows inside the condenser tubes, absorbs the latent heat of the steam outside the tubes and condenses it into water, maintaining the high vacuum of the condenser (about 0.004 to 0.006 MPa) and increasing the steam enthalpy drop to improve power generation efficiency. However, circulating water contains impurities such as mud and salt, which are prone to scale formation on the inner wall of copper tubes, forming a laminar boundary layer with poor thermal conductivity. This leads to a surge in heat transfer resistance and vacuum deterioration. The boundary layer can be broken by installing a spiral belt device to prevent scale formation. Combined with half-side cleaning and water quality monitoring, heat exchange can be optimized to ensure the efficient operation of the condenser. This is of great significance for reducing coal consumption in power generation and extending equipment life.

[0003] Currently, when recycling circulating water, the cooled circulating water needs to be sent into the circulating water channel for circulation. However, during the use of the circulating water channel, the channel is constantly subjected to high-volume scouring by the circulating water, which can lead to wear and tear. These problems require frequent maintenance and repair of the circulating water channel, resulting in a significant waste of manpower and resources and increasing the operating costs of the power plant's steam turbine condenser equipment. Utility Model Content

[0004] (a) Technical problems to be solved

[0005] To address the shortcomings of existing technologies, this utility model provides a circulating water energy recovery device, which solves the problem that the circulating water channel is subject to wear and tear due to constant scouring by high circulating water levels. These problems lead to frequent maintenance and repair of the circulating water channel, resulting in a significant waste of manpower and resources and increasing the operating costs of the power plant's steam turbine condenser equipment.

[0006] (II) Technical Solution

[0007] To achieve the above objectives, this utility model provides the following technical solution: a circulating water energy recovery device, comprising a circulating water channel, an installation frame fixedly installed on the right end of the upper surface of the circulating water channel, a partition fixedly installed on the inner wall of the circulating water channel, and two turbines fixedly installed at the front end of the inner wall of the circulating water channel.

[0008] An auxiliary mechanism is installed on the circulating water channel. The auxiliary mechanism includes a guide plate and a scraper. The guide plate is fixedly installed on the front end of the inner wall of the circulating water channel and is located on the right side of the two turbines. The scraper is slidably installed on the right surface of the guide plate. A first mounting plate is fixedly installed on the upper surface of the partition plate. A rectangular groove is opened on the lower surface of the first mounting plate. A connecting plate is slidably installed inside the rectangular groove. The lower end of the connecting plate is fixedly connected to the scraper. An L-shaped plate is fixedly installed on the upper surface of the partition plate and is located on the left side of the first mounting plate.

[0009] Preferably, the auxiliary mechanism further includes a baffle net, a multi-segment hydraulic cylinder is fixedly installed on the upper surface of the L-shaped plate, a second mounting plate is fixedly installed on the telescopic end of the multi-segment hydraulic cylinder, and the baffle net is installed on the lower surface of the second mounting plate.

[0010] Preferably, the lower surface of the second mounting plate is provided with a T-shaped groove, the front end of the T-shaped groove is open, and a T-shaped plate is slidably inserted into the interior of the T-shaped groove, and the T-shaped plate is fixedly connected to the baffle.

[0011] Preferably, a screw is rotatably mounted on the inner wall of the rectangular groove on the first mounting plate, and the screw is threadedly connected to the connecting plate.

[0012] Preferably, a motor is fixedly mounted on the upper surface of the first mounting plate, and the output end of the motor rotates through the interior of the rectangular groove, with the motor and screw fixedly connected.

[0013] Preferably, two gate valves are installed at the lower end of the mounting bracket, and the gates on the two gate valves are located inside the circulating water channel.

[0014] (III) Beneficial Effects

[0015] Compared with the prior art, the present invention provides a circulating water energy recovery device, which has the following beneficial effects:

[0016] 1. This circulating water energy recovery device reduces the flow velocity through a turbine, and with the rectification effect of the guide plate, it reduces the scouring force on the inner wall of the water channel, thus reducing its wear. The guide plate also straightens the water flow, making the turbine bear force evenly and reducing kinetic energy loss caused by water flow turbulence. The baffle intercepts impurities, preventing the turbine blades from being blocked or worn, and maintaining the long-term stable operation of the turbine. This reduces the waste of manpower and material resources, lowers the operating cost of the steam turbine condenser equipment in the power plant, and improves production efficiency. Attached Figure Description

[0017] Figure 1 This is a top view schematic diagram of the overall structure of the circulating water energy recovery device of this utility model;

[0018] Figure 2 This is a schematic diagram of the internal cross-sectional side view of the circulating water energy recovery device of this utility model;

[0019] Figure 3 for Figure 2 Enlarged structural diagram at point A in the middle;

[0020] Figure 4 This is a cross-sectional view of the baffle structure of this utility model.

[0021] In the diagram: 1. Circulating water channel; 2. Mounting frame; 3. Baffle plate; 4. Turbine; 5. Guide plate; 6. Scraper; 7. First mounting plate; 8. Rectangular groove; 9. Connecting plate; 10. L-shaped plate; 11. Baffle net; 12. Multi-stage hydraulic cylinder; 13. Second mounting plate; 14. T-shaped groove; 15. T-shaped plate; 16. Screw; 17. Motor; 18. Gate valve. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Please see Figure 1-4 This utility model provides a new technical solution: a circulating water energy recovery device, including a circulating water channel 1, an installation frame 2 fixedly installed on the right end of the upper surface of the circulating water channel 1, a partition 3 fixedly installed on the inner wall of the circulating water channel 1, and two turbines 4 fixedly installed at the front end of the inner wall of the circulating water channel 1.

[0024] An auxiliary mechanism is installed on the circulating water channel 1. The auxiliary mechanism includes a guide plate 5 and a scraper 6. The guide plate 5 is fixedly installed on the front end of the inner wall of the circulating water channel 1. The guide plate 5 is located on the right side of the two turbines 4. The scraper 6 is slidably installed on the right surface of the guide plate 5. A first mounting plate 7 is fixedly installed on the upper surface of the partition plate 3. A rectangular groove 8 is opened on the lower surface of the first mounting plate 7. A connecting plate 9 is slidably installed inside the rectangular groove 8. The lower end of the connecting plate 9 is fixedly connected to the scraper 6. An L-shaped plate 10 is fixedly installed on the upper surface of the partition plate 3. The L-shaped plate 10 is located on the left side of the first mounting plate 7.

[0025] Furthermore, the auxiliary mechanism also includes a baffle 11, a multi-segment hydraulic cylinder 12 is fixedly installed on the upper surface of the L-shaped plate 10, a second mounting plate 13 is fixedly installed on the telescopic end of the multi-segment hydraulic cylinder 12, and the baffle 11 is installed on the lower surface of the second mounting plate 13.

[0026] Furthermore, by reducing the flow velocity through turbine 4, and with the rectification effect of guide plate 5, the scouring force on the inner wall of water channel 1 is reduced, thus reducing its wear. Guide plate 5 also smooths the water flow, making the turbine 4 subjected to uniform force and reducing kinetic energy loss caused by water flow turbulence. Baffle 11 intercepts impurities, preventing the turbine 4 blades from being blocked or worn, and maintaining the turbine's long-term stable operation. This reduces the waste of manpower and material resources, lowers the operating cost of the power plant's steam turbine condenser equipment, and improves production efficiency.

[0027] Furthermore, a T-shaped groove 14 is provided on the lower surface of the second mounting plate 13. The front end of the T-shaped groove 14 is open. A T-shaped plate 15 is slidably inserted into the interior of the T-shaped groove 14. The T-shaped plate 15 is fixedly connected to the baffle 11.

[0028] Furthermore, a screw 16 is rotatably mounted on the inner wall of the rectangular groove 8 on the first mounting plate 7, and the screw 16 is threadedly connected to the connecting plate 9.

[0029] Furthermore, a motor 17 is fixedly mounted on the upper surface of the first mounting plate 7. The output end of the motor 17 rotates through the interior of the rectangular groove 8, and the motor 17 is fixedly connected to the screw 16.

[0030] Furthermore, two gate valves 18 are installed at the lower end of the mounting bracket 2, and the gates on the two gate valves 18 are located inside the circulating water channel 1.

[0031] Furthermore, circulating water flows in from the right end of circulating water channel 1, first passing through guide plate 5 (located to the right of turbine 4), then flowing through two turbines 4. The water flow is controlled by two gate valves 18 on mounting bracket 2 to ensure a stable water flow into the main channel. The water flow impacts the blades of turbine 4, driving the turbines to rotate and converting the kinetic energy of the circulating water into mechanical energy, which is then used to generate electricity through a generator. Guide plate 5, located to the right of turbine 4, can regulate the direction of water flow, making the water flow evenly distributed and reducing eddies. When the water flows through guide plate 5, some of the kinetic energy is dispersed, and the flow... As the initial velocity decreases, most of the kinetic energy is absorbed by the turbine 4 and converted into electrical energy when the water flow drives the turbine 4 to rotate, resulting in a significant decrease in water flow velocity. The two-stage turbine 4 can absorb kinetic energy in stages, further reducing the flow velocity, thereby reducing the scouring force on the inner wall of the circulating water channel 1. When it is necessary to clean the guide plate 5, the baffle 11 is inserted into the T-groove 14 of the second mounting plate 13 through the T-shaped plate 15 and fixed. The multi-stage hydraulic cylinder 12 is activated to push the second mounting plate 13 downward, so that the baffle 11 enters the circulating water channel 1 and is located on the left side of the guide plate 5. The baffle 11 is used to intercept impurities that fall off during the cleaning process. The motor 17 is started, driving the screw 16 to rotate. The screw 16 is threadedly connected to the connecting plate 9, driving the connecting plate 9 to slide upwards along the rectangular groove 8. This causes the scraper 6 to move upwards on the right surface of the guide plate 5. The scraper 6 adheres tightly to the surface of the guide plate 5, scraping away the attached impurities. The impurities, carried by the water flow, pass through the holes on the guide plate 5 and are intercepted by the baffle 11 on the left. After cleaning, the multi-stage hydraulic cylinder 12 drives the baffle 11 upwards, detaching it from the water channel 1. The baffle 11 is then removed, and the trapped impurities are cleaned.

[0032] Structural Description: Circulating Water Channel 1: Serves as a channel for the flow of circulating water, guiding its flow and providing a location for energy recovery;

[0033] Mounting bracket 2: Fixedly installed on the right end of the upper surface of the circulating water channel 1, used to install gate valve 18 to control the circulating water flow;

[0034] Baffle 3: Fixed to the inner wall of the circulating water channel 1, it separates the flow channels, guides the water flow through the turbine 4 in an orderly manner, and avoids water flow turbulence;

[0035] Turbine 4: There are two in total, fixed at the front end of the inner wall of the circulating water channel 1. It generates electricity by rotating through the impact of water flow and absorbs the kinetic energy of the water flow to slow down the circulating water.

[0036] Guide plate 5: Fixed to the front end of the inner wall of the circulating water channel 1 and the right side of the turbine 4, it straightens the water flow, reduces the flow velocity, and reduces the scouring of the water channel;

[0037] Scraper 6: Slidably mounted on the right surface of the guide plate 5, used to clean impurities on the guide plate 5 and ensure its guiding effect;

[0038] First mounting plate 7: fixed on the upper surface of partition 3, used to mount screw 16 and motor 17, and to provide support for the movement of scraper 6;

[0039] Rectangular groove 8: formed on the lower surface of the first mounting plate 7, with a connecting plate 9 installed inside, allowing the connecting plate 9 to slide up and down;

[0040] Connecting plate 9: slides up and down in rectangular groove 8, and its lower end is connected to scraper 6 to transmit the power of motor 17 to scraper 6;

[0041] L-shaped plate 10: fixed on the upper surface of partition 3 and the left side of the first mounting plate 7, used to install multi-section hydraulic cylinder 12;

[0042] Baffle 11: Installed on the lower surface of the second mounting plate 13 to intercept the cleaned impurities and prevent them from clogging the turbine 4;

[0043] Multi-stage hydraulic cylinder 12: fixed on the upper surface of L-shaped plate 10, driving the second mounting plate 13 and the baffle 11 to move up and down;

[0044] Second mounting plate 13: connected to the telescopic end of multi-section hydraulic cylinder 12, used to install the baffle 11 and drive it to move;

[0045] T-slot 14: formed on the lower surface of the second mounting plate 13, used to install the T-plate 15 and fix the baffle 11;

[0046] T-shaped plate 15: It is fixedly connected to the baffle 11 and inserted into the T-shaped groove 14 to realize the installation and removal of the baffle 11;

[0047] Screw 16: Rotatably mounted on the inner wall of rectangular groove 8, threadedly connected to connecting plate 9, transmitting the rotational motion of motor 17;

[0048] Motor 17: Fixed on the upper surface of the first mounting plate 7, driving the screw 16 to rotate, causing the scraper 6 to move up and down to clean impurities;

[0049] Gate valve 18: There are two in total, which are installed at the lower end of the mounting bracket 2 to control the on / off state and flow rate of the circulating water.

[0050] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A circulating water energy recovery device, comprising a circulating water channel (1), wherein a mounting frame (2) is fixedly installed on the right end of the upper surface of the circulating water channel (1), and a partition plate (3) is fixedly installed on the inner wall of the circulating water channel (1), characterized in that: Two turbines (4) are fixedly installed at the front end of the inner wall of the circulating water channel (1); The auxiliary mechanism is set on the circulating water channel (1). The auxiliary mechanism includes a guide plate (5) and a scraper (6). The guide plate (5) is fixedly installed on the front end of the inner wall of the circulating water channel (1). The guide plate (5) is located on the right side of the two turbines (4). The scraper (6) is slidably installed on the right surface of the guide plate (5). The upper surface of the partition plate (3) is fixedly installed with a first mounting plate (7). The lower surface of the first mounting plate (7) is provided with a rectangular groove (8). The inside of the rectangular groove (8) is slidably installed with a connecting plate (9). The lower end of the connecting plate (9) is fixedly connected to the scraper (6). The upper surface of the partition plate (3) is fixedly installed with an L-shaped plate (10). The L-shaped plate (10) is located on the left side of the first mounting plate (7).

2. A circulating water energy recovery device according to claim 1, characterized in that: The auxiliary mechanism also includes a baffle (11), a multi-segment hydraulic cylinder (12) is fixedly installed on the upper surface of the L-shaped plate (10), a second mounting plate (13) is fixedly installed on the telescopic end of the multi-segment hydraulic cylinder (12), and the baffle (11) is installed on the lower surface of the second mounting plate (13).

3. A circulating water energy recovery device according to claim 2, wherein: The lower surface of the second mounting plate (13) is provided with a T-shaped groove (14), the front end of the T-shaped groove (14) is open, and a T-shaped plate (15) is slidably inserted into the interior of the T-shaped groove (14), and the T-shaped plate (15) is fixedly connected to the baffle (11).

4. A circulating water energy recovery device according to claim 1, characterized in that: A screw (16) is rotatably mounted on the inner wall of the rectangular groove (8) on the first mounting plate (7), and the screw (16) is threadedly connected to the connecting plate (9).

5. A circulating water energy recovery device according to claim 4, wherein: A motor (17) is fixedly mounted on the upper surface of the first mounting plate (7). The output end of the motor (17) rotates through the interior of the rectangular groove (8). The motor (17) is fixedly connected to the screw (16).

6. The circulating water energy recovery device according to claim 1, characterized in that: Two gate valves (18) are installed at the lower end of the mounting bracket (2), and the gates on the two gate valves (18) are located inside the circulating water channel (1).

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