Circulating water taking net structure of nuclear power plant

Abstract

The invention relates to the technical field of nuclear power plant water taking. A circulating water taking net structure of a nuclear power plant comprises a support installed at a water inlet of the nuclear power plant, the support is provided with a chain net structure capable of rotating circularly, the chain net structure ensures that water flow passes through and isolates garbage, and the top of the support is provided with a cleaning part used for cleaning the chain net structure. A recycling device used for storing and conveying garbage outwards is arranged below the chain net structure at the top position. The invention provides the circulating water intake net structure for the nuclear power plant, which can effectively prevent garbage blockage at the water intake of the nuclear power plant, can efficiently isolate and clean garbage, ensures the working environment at the water intake and is convenient to control; the technical problems that in the prior art, a water intake of a nuclear power plant is seriously blocked by garbage, the garbage needs to be frequently cleaned to prevent blockage, the cleaning process is tedious and inconvenient to operate, and higher actual requirements cannot be met are solved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of nuclear power plant water intake, in particular to a circulating water intake net structure for nuclear power plant. BACKGROUND

[0002] The operation state of the water intake of a nuclear power plant directly affects the safe operation and reliability of the plant. The water intake of a nuclear power plant often needs to be cleaned due to blockage by marine debris, jellyfish, algae, fish and the like. The main cleaning methods currently used include manual cleaning and mechanical cleaning. Manual cleaning has the disadvantages of safety risk for the operator, low efficiency and inconvenience of operation. Mechanical cleaning may damage the base material and affect the service life and safety of the equipment, and it is difficult to reach complex parts, so there is a need for improvement. SUMMARY

[0003] The present application provides a circulating water intake net structure for nuclear power plant, which can effectively prevent garbage blockage at the water intake of a nuclear power plant, efficiently isolate and clean garbage, ensure the working environment of the water intake, and facilitate control. The present application solves the technical problem in the prior art that garbage blockage at the water intake of a nuclear power plant is serious, frequent cleaning of garbage is required to prevent blockage, the cleaning process is complicated and inconvenient to operate, and higher actual requirements cannot be met.

[0004] The above technical problem of the present application is solved by the following technical scheme: a circulating water intake net structure for nuclear power plant, comprising a support installed at the water inlet of a nuclear power plant, wherein the support is provided with a chain net structure that can rotate circularly, the chain net structure ensures that water flows through and isolates garbage, the top of the support is provided with a cleaning component for cleaning the chain net structure, and the chain net structure at the top position is provided below with a recycling device for storing and transporting garbage outward. In the present application, the support is installed at the water inlet of a nuclear power plant. During operation, the transmission chain drives the chain net to rotate circularly, water flows through the chain net, and garbage is isolated outside. While the chain net rotates circularly, the cleaning module can clean the garbage on the surface of the chain net structure, and the cleaned garbage falls into the recycling device, which concentrates and transports the garbage for recycling. The chain net structure of the present application cooperates with the cleaning component and the recycling device to realize continuous work, ensures the working environment of the water intake net, avoids garbage blockage affecting the flow rate, and eliminates the need for manual cleaning.

[0005] As a preferred embodiment, the chain net structure comprises a plurality of chain wheels rotatably installed on the support, the chain wheels are provided with transmission chains, and the transmission chains are fixedly provided with chain nets. The number and position of the chain wheels can be adjusted according to actual conditions. The transmission chain of the present application is described by taking a triangular structure as an example. The cleaning module and the recycling module are installed at the top straight edge position of the transmission chain to ensure the working space.

[0006] As preferred, the chain wheel is driven by a transmission motor, and an adjusting sliding groove for adjusting the tension of the chain is formed on the support, and the chain wheel is slidingly installed in the adjusting sliding groove.

[0007] As preferred, chain links are arranged at intervals on the conveying chain, and the chain net is inserted outside the chain links. The chain net is inserted outside the chain links, the chain links can play the role of reinforcing ribs, and the overall strength and stability of the chain net can be ensured.

[0008] As preferred, the cleaning part comprises a plurality of cleaning brushes which are rotatably installed above the chain net structure, and the cleaning brushes are made of elastic steel wires. The cleaning brushes rotate circularly to clean the surface of the chain net.

[0009] As preferred, the cleaning brushes are driven by brush rod motors. The brush rod motors can be controlled independently, and the operator can select to start or stop the corresponding motor according to the actual situation.

[0010] As preferred, the adjacent two cleaning brushes are meshed by brush rod transmission gears, and the rotation directions of the adjacent two cleaning brushes are opposite. While the chain net circulates, the brush rod motors drive the plurality of cleaning brushes to rotate through the cooperation of the gear sets, the cleaning brushes can brush away the garbage remaining on the surface of the chain net, and the rotation directions of the adjacent two cleaning brushes are opposite, so that the chain net can be cleaned from multiple angles to ensure the working environment of the chain net.

[0011] As preferred, the recycling device comprises a collecting groove which is fixed below the top chain net structure, a discharge port is formed on one side of the collecting groove, and a spiral feeding rod is arranged in the collecting groove. The garbage cleaned by the cleaning brushes falls into the collecting groove below the chain net, and the garbage in the collecting groove is transported to the right discharge port under the action of the spiral feeding rod, the discharge port is connected with other channels or containers to recycle the garbage, so that the garbage is prevented from being blocked due to too much.

[0012] As preferred, the collecting groove is an arc-shaped groove which converges downward. The arc-shaped collecting groove which converges downward can guide the garbage, and the garbage is concentrated at the bottom and is transported outward under the action of the spiral feeding rod.

[0013] As preferred, the spiral feeding rod is driven by a discharge motor. The discharge motor can be controlled independently, and the operator can select to start or stop the corresponding motor according to the actual situation.

[0014] Therefore, the nuclear power plant circulating water taking net structure has the following advantages: the garbage blocking at the water taking port of the nuclear power plant can be effectively prevented, the chain net can work circularly, the garbage on the chain net can be efficiently cleaned and recycled, the working environment at the water taking port can be ensured, and each part is convenient to control. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 is a front view structural schematic diagram of a circulating water intake net structure of a nuclear power plant.

[0016] Figure 2 is a left view sectional structural schematic diagram of Figure 1 .

[0017] Figure 3 is a partial right view structural schematic diagram of the bracket in Figure 1 .

[0018] Figure 4 is a front view sectional structural schematic diagram of Figure 1 .

[0019] In the figure, the bracket 1, the chain wheel 2, the adjusting sliding groove 3, the conveying chain 4, the chain net 5, the cleaning brush 6, the brush rod transmission gear 7, the collecting groove 8, the spiral feeding rod 9. DETAILED DESCRIPTION

[0020] The technical solutions of the application will be further specifically described below by examples in combination with the drawings.

[0021] Example: As Figure 1 and 2 and 3 and 4 show, a circulating water intake net structure of a nuclear power plant comprises a bracket 1 installed at the water inlet of the nuclear power plant, and a chain net structure capable of circulating rotation is symmetrically installed on the left and right brackets 1, which ensures the water flow and isolates the garbage.

[0022] The chain net structure comprises a plurality of chain wheels 2 rotationally installed on the bracket 1, the chain wheels 2 are driven by a transmission motor, one side of the bracket 1 is provided with an adjusting sliding groove 3 for adjusting the tension of one of the chain wheels 2, and the single chain wheel 2 is slidingly installed in the adjusting sliding groove 3.

[0023] The chain wheel 2 is sleeved with a head-to-tail conveying chain 4, and the conveying chain 4 is fixedly installed with a chain net 5; a chain link is installed on the conveying chain 4 at intervals, and the chain net 5 is fixed outside the chain link.

[0024] The bracket 1 is provided with a cleaning component for cleaning the chain net structure at the top; the cleaning component comprises a plurality of cleaning brushes 6 rotationally installed above the chain net structure, and the surface of the cleaning brush 6 is embedded with elastic steel wires.

[0025] The cleaning brush 6 is driven by a brush rod motor, adjacent two cleaning brushes 6 are engaged by a brush rod transmission gear 7, and the rotation directions of the adjacent two cleaning brushes 6 are opposite.

[0026] The chain net structure at the top position is provided below with a recycling device for storing and conveying garbage outward, which comprises a collecting groove 8 fixed below the top chain net structure, a discharge port is formed at the right side of the collecting groove 8, and a spiral feeding rod 9 is installed in the collecting groove 8.

[0027] The collecting groove 8 is an arc-shaped groove converging downward, and the spiral feeding rod 9 is installed at the bottom of the collecting groove 8.

[0028] The spiral feeding rod 9 is driven by a discharging motor.

[0029] The support 1 in the application is installed at the water inlet of a nuclear power plant, in the working process, the conveying chain 4 drives the chain net 5 to rotate circularly, water flows through the chain net 5, and garbage is isolated outside by the chain net 5.

[0030] In the working process, the position of the single sprocket 2 can be adjusted to adjust the chain tension, and different working environments can be adapted.

[0031] In the process of the chain net 5 circulating, the brush rod motor drives a plurality of cleaning brushes 6 to rotate through the cooperation of the gear set, the cleaning brushes 6 can brush off the garbage remaining on the surface of the chain net 5, and the rotation directions of adjacent two cleaning brushes 6 are opposite, which can realize cleaning of the chain net 5 at multiple angles, and ensure the working environment of the chain net 5.

[0032] The garbage cleaned by the cleaning brush 6 will fall into the collecting groove 8 below the chain net 5, and the garbage in the collecting groove 8 is conveyed to the right discharge port under the driving of the spiral feeding rod 9, the discharge port is connected to other channels or containers to recycle the garbage, so that the garbage is prevented from being blocked due to too much garbage.

[0033] The motors in the cleaning component and the recycling device can be controlled separately, and the operator can select to start or stop the corresponding motor according to the actual situation.

[0034] The chain net 5 in the application cooperates with the cleaning component and the recycling device to realize continuous and uninterrupted work, and can ensure the working environment of the water taking net, avoid garbage blockage affecting the flow, and does not need manual cleaning.

[0035] The specific embodiments described in the present application are only examples of the concept of the application. Those skilled in the art of the application can make various modifications or supplements to the described specific embodiments or replace them with similar ways, without departing from the spirit of the application or exceeding the scope defined by the appended claims.

Claims

1. A circulating water intake network structure for a nuclear power plant, characterized by: It includes a bracket installed at the water inlet of a nuclear power plant. The bracket is provided with a rotatable chain net structure, which ensures the passage of water and isolates garbage. A cleaning component for cleaning the chain net structure is provided on the top of the bracket. A recovery device for storing and transporting garbage is provided below the chain net structure at the top.

2. A circulating water intake network structure for a nuclear power plant according to claim 1, characterized in that: The chain network structure comprises a plurality of sprockets rotatably mounted on a bracket, the sprockets are provided with a transmission chain, and the transmission chain is fixedly provided with a chain network.

3. A circulating water intake network structure for a nuclear power plant according to claim 2, characterized in that: The sprocket is driven by a transmission motor, and an adjusting slot for adjusting the tension of the chain is provided on the bracket, and the sprocket is slidably installed in the adjusting slot.

4. A circulating water intake network structure for a nuclear power plant according to claim 2, characterized in that: Chain connecting rods are arranged at intervals on the conveying chain, and the chain nets are inserted outside the chain connecting rods.

5. The circulating water intake network structure of a nuclear power plant according to claim 1, characterized in that: The cleaning components include a plurality of cleaning brushes rotatably mounted above the chain network structure, and elastic steel wires are arranged on the cleaning brushes.

6. A circulating water intake network structure for a nuclear power plant according to claim 5, characterized in that: The cleaning brush is driven by a brush rod motor.

7. A circulating water intake network structure for a nuclear power plant according to claim 6, characterized in that: The two adjacent cleaning brushes are meshed with each other through a brush rod transmission gear, and the rotation directions of the two adjacent cleaning brushes are opposite.

8. The circulating water intake network structure for a nuclear power plant according to claim 1, characterized in that: The recovery device comprises a collecting trough fixed below the top chain network structure, a discharge port is provided on one side of the collecting trough, and a spiral feeding rod is provided in the collecting trough.

9. A circulating water intake network structure for a nuclear power plant according to claim 8, characterized in that: The collecting trough is an arc-shaped trough that converges downward.

10. The circulating water intake network structure of a nuclear power plant according to claim 8, characterized in that: The spiral feeding rod is driven by a discharge motor.

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