Nuclear power station water intake biological interception device and intercepted object collecting and transferring method

Abstract

The invention relates to a biological interception device for a water intake of a nuclear power station. The biological interception device comprises a net bag type interception net and a plurality of quick transfer bags, the net bag type intercepting net comprises a net body and a net bag, and a tail outlet of the net bag is connected with a first quick connector; one end of the quick transfer bag is also connected with a first quick connector, the other end of the quick transfer bag is connected with a second quick connector, and the first quick connector and the second quick connector can be quickly connected and separated. The rapid transfer bag is arranged, intercepted marine organisms are collected through the rapid transfer bag, the taken-down rapid transfer bag does not need to be hoisted to a working ship and only needs to be dragged and transferred to a wharf in water for treatment, hoisting operation is not needed in the intercepted object collecting and transferring mode, operation is easy, and the working efficiency is high; meanwhile, the safety risk of workers and the damage to the netting gear can be reduced.

Description

Technical Field

[0001] The present invention belongs to the technical field of biological interception, and particularly relates to a biological interception device for a nuclear power plant water intake and a method for collecting and transporting intercepted objects. Background Art

[0002] As a clean, efficient and environmentally friendly energy source, nuclear power has received much attention in the industry, and safety is a key issue that power plants need to focus on. The nuclear power cold source system generally uses seawater as circulating cooling water. Marine organisms in seawater attach and grow in the circulating water system, which will cause system blockage. In recent years, incidents of unplanned shutdowns of nuclear power plant cold sources due to blockage by marine organisms have occurred continuously. Therefore, it is necessary to further improve the pollution interception ability of the water intake.

[0003] At present, the water intake of nuclear power plants generally uses a water intake open channel to introduce seawater, and multiple interception nets are used to prevent marine organisms from entering the nuclear power water intake pipeline. According to the fixed method classification, the interception nets can be divided into fixed type and floating type. According to the net form classification, they can be divided into net sheet type and net pocket type. The net sheet type interception net has a slightly larger mesh size and is generally used for the periphery of the water intake open channel. The net pocket type interception net is more convenient for collecting intercepted objects. Therefore, the net pocket type interception net is mostly used in the open channel. The net pocket type interception net usually consists of a net body and a net bag. During the use of the net pocket type interception net, the net bag part of the interception net needs to be hoisted onto a working boat to pour out the intercepted objects for cleaning, and then it is convenient for transportation. At present, this method of hoisting the net bag is cumbersome in operation and low in work efficiency. During the high-incidence period of intercepted organisms, there are particularly many intercepted objects collected in the net, making it difficult to clean and transport. There is a certain safety risk for the staff to hoist heavy objects on the working boat, and frequent hoisting of the net bag is likely to cause physical damage to the netting. Summary of the Invention

[0004] The main purpose of the present invention is to propose a biological interception device for a nuclear power plant water intake and a method for collecting and transporting intercepted objects, which can effectively solve the problems in the background art.

[0005] To achieve the above object, the present invention is realized through the following technical solutions:

[0006] A biological interception device for a nuclear power plant water intake, comprising a net pocket type interception net and a plurality of quick transfer bags;

[0007] The net pocket type interception net includes a guiding net and a net bag, and a first quick interface is connected to the tail outlet of the net bag;

[0008] One end of the quick transfer bag is also connected with a first quick interface, and the other end is connected with a second quick interface, and the first quick interface and the second quick interface can be quickly connected and separated.

[0009] Preferably, the quick transfer bag is a cylindrical long bag made of netting, and a plurality of reinforcing ropes are sewn on it;

[0010] The first quick interface and the second quick interface both include a connecting pipe and a flange, wherein the flange is fixedly sleeved in the middle of the connecting pipe, an annular groove is provided on the outer side of one end of the connecting pipe, and a docking element is provided on the other end, and a plurality of connecting holes are evenly provided on the flange;

[0011] The two ends of the quick transfer bag are respectively tied to the annular grooves of the first quick interface and the second quick interface and are clamped by a clamp, and the two ends of the reinforcement rope on the quick transfer bag are respectively fixedly connected to the connection holes of the flanges on the first quick interface and the second quick interface;

[0012] The first quick interface and the second quick interface can be quickly connected and separated through two docking elements;

[0013] Preferably, both ends of the rapid transfer bag are circumferentially provided with a plurality of tie rope rings, and tie ropes are passed through the plurality of tie rope rings.

[0014] Preferably, a lifting rope is provided on the net bag.

[0015] A method for collecting and transporting intercepted objects at a water intake of a nuclear power plant comprises the following steps:

[0016] The first quick interface is connected to the tail outlet of the net bag type interception net;

[0017] The second quick interface of the rapid transfer bag is connected to the first quick interface of the tail outlet of the net bag, so that the net bag type interception net is connected to the rapid transfer bag, and the marine life intercepted by the net bag type interception net is finally collected and stored in the rapid transfer bag;

[0018] When the quick transfer bag is full, the interface between the net bag interception net and the quick transfer bag is lifted out of the water by rolling up the hoisting rope, and the quick transfer bag can be replaced after tightening the tying rope;

[0019] The removed quick transfer bags do not need to be hoisted to the work boat, but only need to be towed in the water to the dock for processing;

[0020] If there is no time to transport, the quick transfer bags can be tied and concentrated somewhere, and then transported when there is free time;

[0021] Before the arrival of strong winds and waves that are not suitable for workboat operations, two or more quick transfer bags can be connected in sequence to the net bag type interception net to increase the holding capacity of the interception net and prevent excessive accumulation of marine life in the front part of the net, causing damage to the net.

[0022] The present invention provides a biological interception device for a water intake of a nuclear power plant and a method for collecting and transporting intercepted objects, which have the following beneficial effects:

[0023] The present invention is provided with a rapid transfer bag, through which the intercepted marine organisms are collected. The removed rapid transfer bag does not need to be hoisted to a work boat, but only needs to be towed in the water and transferred to the dock for processing. This method of collecting and transferring the intercepted objects does not require lifting operations, is simple to operate, and has high work efficiency. At the same time, it can also reduce the safety risks of the staff and reduce the damage to the nets.

[0024] The removed quick transfer bags do not need to be lifted to the work boat, but only need to be towed in the water to the dock for processing; if there is no time to tow them, the quick transfer bags can be tied somewhere and concentrated, and towed and processed when free; before the arrival of strong winds and waves that are not suitable for work boat operations, two or more quick transfer bags can be connected in sequence to the net bag type interception net to increase the holding capacity of the interception net and prevent excessive storage of marine organisms in the front part of the net from causing damage to the net. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 This is a schematic diagram of the use of the biological interception device of the present invention;

[0026] Figure 2 It is a schematic diagram of the structure of the rapid transfer bag of the present invention;

[0027] Figure 3 It is a schematic diagram of the structure of the first quick interface and the second quick interface of the present invention;

[0028] Figure 4 For the present invention Figure 3 Top view of the .

[0029] In the figure: 1. first quick interface; 2. second quick interface; 3. flange; 5. docking element; 6. annular groove; 7. quick transfer bag; 8. clamp; 9. tie rope ring; 10. reinforcement rope; 11. connecting pipe; 12. connecting hole; 13. net body; 14. net bag; 15. lifting rope. DETAILED DESCRIPTION

[0030] In order to make the purpose, technical solutions and advantages of the present invention more clear, the technical solutions of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the present invention.

[0031] The technical solution of the present invention will be clearly and completely described below in conjunction with the embodiments. Obviously, the described embodiments are part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0032] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0033] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, "multiple" means two or more, unless otherwise clearly and specifically defined. In addition, the terms "installed", "connected" and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal connection of two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0034] Example

[0035] A biological interception device for a water intake of a nuclear power plant, comprising a net bag type interception net and a plurality of rapid transfer bags 7;

[0036] Reference Figure 1 The net bag type interception net includes a net body 13 and a net bag 14, and the tail outlet of the net bag 14 is connected to a first quick interface 1;

[0037] Reference Figure 2 One end of the rapid transfer bag 7 is also connected to a first rapid interface 1, and the other end is connected to a second rapid interface 2. The first rapid interface 1 and the second rapid interface 2 can realize rapid connection and separation.

[0038] The rapid transfer bag 7 of the present invention can be used on net bag type interception nets of different specifications. In this embodiment, the net bag type interception net has a net body 13 of 25m wide, 18m high, and 25m long, and a net bag 14 of 6m long and 0.5m in diameter.

[0039] In a specific embodiment, the rapid transfer bag 7 is a cylindrical long bag composed of a netting. The netting is an ultra-high-strength small-mesh netting. The length of the rapid transfer bag 7 is 3.5 m, the tightened length of the upper and lower bottom netting is 5 m, and the circumference after installing the lead line is 1 m. The material of the netting is ultra-high-strength polyethylene fiber, and the mesh size is 6 mm. A number of reinforcing ropes 10 are sewn on the rapid transfer bag 7. The diameter of the reinforcing ropes 10 is 10 mm, and the material is ultra-high-strength polyethylene fiber. Floats are evenly tied on the reinforcing ropes 10 of its back netting (the netting facing the water surface during the operation of the transfer bag), and the total buoyancy is 500 N. An anti-abrasion mesh piece is installed on the belly net (the netting facing the bottom during the operation of the transfer bag).

[0040] Refer to Figure 3 、 Figure 4 As shown in FIGS.

[0041] Both ends of the rapid transfer bag 7 are respectively tied in the annular grooves 6 of the first quick interface 1 and the second quick interface 2, and are tightened by a hoop 8. The two ends of the reinforcing rope 10 on the rapid transfer bag 7 are respectively fixedly connected to the connection holes 12 of the flange plates 3 on the first quick interface 1 and the second quick interface 2, so as to improve the connection strength and prevent the quick interface from falling off.

[0042] The first quick interface 1 and the second quick interface 2 can be quickly connected and separated through two docking elements 5. There are various connection methods for the two docking elements 5, such as threaded type, fire hose type, etc. Here, a simple structure of the docking element is proposed: four cylindrical protrusions with a diameter of 10 mm and a length of 10 mm are arranged at the connection part of the first quick interface, and four connection tenons are made at the corresponding positions of the connection part of the second quick interface. When connection is required, the first quick connection port is inserted into the connection part of the second connection port and rotated slightly to make the cylindrical protrusions embed into the tenons to connect and fix the two.

[0043] In a specific embodiment, a number of tying rope loops 9 are circumferentially arranged at both ends of the rapid transfer bag 7. Tying ropes are threaded through the number of tying rope loops 9, which can conveniently open or close the rapid transfer bag 7, and can also be used for towing and lifting during transportation.

[0044] In a specific embodiment, a hoisting rope 15 is arranged on the net bag 14 to facilitate lifting the net bag 14.

[0045] The present invention also provides a method for collecting and transporting interceptors at the water intake of a nuclear power plant, including the following steps:

[0046] The first quick interface 1 is connected to the tail outlet of the net bag 14 of the net bag type interception net;

[0047] Connect the second quick interface 2 of the rapid transfer bag 7 to the first quick interface 1 of the tail outlet of the net bag 14, so that the net bag type interception net is connected to the rapid transfer bag 7, and the marine life intercepted by the net bag type interception net is finally collected and stored in the rapid transfer bag 7;

[0048] After the quick transfer bag 7 is filled, the interface between the net bag type interception net and the quick transfer bag 7 is raised to the surface of the water by rolling up the lifting rope 15, and the quick transfer bag 7 can be replaced after tightening the tie rope;

[0049] The removed quick transfer bag 7 does not need to be hoisted to the work boat, but only needs to be towed in the water and transferred to the dock for processing;

[0050] If there is no time to haul, the quick transfer bag 7 can be tied to a certain place and hauled when free;

[0051] Before the arrival of strong winds and waves that are not suitable for workboat operations, two or more quick transfer bags 7 can be connected to the net bag type interception net in sequence to increase the holding capacity of the interception net and prevent excessive storage of marine organisms in the front part of the net and cause damage to the net.

[0052] The present invention is provided with a rapid transfer bag 7, through which the intercepted marine organisms are collected. The removed rapid transfer bag 7 does not need to be hoisted to a work boat, but only needs to be towed in the water and transported to the dock for processing. This method of collecting and transporting intercepted objects does not require lifting operations, is simple to operate, and has high work efficiency. At the same time, it can also reduce the safety risks of staff and reduce the damage to the nets.

[0053] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the same. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features may be replaced by equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A biological interception device for the water intake of a nuclear power plant, characterized in that: It comprises a net bag type interception net and a plurality of quick transfer bags; the net bag type interception net comprises a net body and a net bag, and the tail outlet of the net bag is connected with a first quick interface; One end of the rapid transfer bag is also connected to a first rapid interface, and the other end is connected to a second rapid interface. The first rapid interface and the second rapid interface can realize rapid connection and separation.

2. A biological interception device for a water intake of a nuclear power plant according to claim 1, characterized in that: The rapid transport bag is a long cylindrical bag made of a net, on which a number of reinforcing ropes are sewn; The first quick interface and the second quick interface both include a connecting pipe and a flange, wherein the flange is fixedly sleeved in the middle of the connecting pipe, an annular groove is provided on the outer side of one end of the connecting pipe, and a docking element is provided on the other end, and a plurality of connecting holes are evenly provided on the flange; The two ends of the quick transfer bag are respectively tied to the annular grooves of the first quick interface and the second quick interface and are clamped by a clamp, and the two ends of the reinforcement rope on the quick transfer bag are respectively fixedly connected to the connection holes of the flanges on the first quick interface and the second quick interface; The first quick interface and the second quick interface can be quickly connected and separated through two docking elements.

3. The biological interception device for the water intake of a nuclear power plant according to claim 1, characterized in that: Both ends of the rapid transfer bag are circumferentially provided with a plurality of tie rope rings, and tie ropes are passed through the plurality of tie rope rings.

4. A biological interception device for a nuclear power plant water intake according to claim 1, characterized in that: The net bag is provided with a lifting rope.

5. A method for intercepting, collecting and transporting interceptors at the water intake of a nuclear power plant, characterized in that, The following steps are involved: The first quick interface is connected to the tail outlet of the net bag type interception net; The second quick interface of the rapid transfer bag is connected to the first quick interface of the tail outlet of the net bag, so that the net bag type interception net is connected to the rapid transfer bag, and the marine life intercepted by the net bag type interception net is finally collected and stored in the rapid transfer bag; after the rapid transfer bag is full, the interface between the net bag type interception net and the rapid transfer bag is lifted out of the water by winding up the hoisting rope, and the rapid transfer bag can be replaced after tightening the tying rope; The removed quick transfer bags do not need to be hoisted to the work boat, but only need to be towed in the water to the dock for processing; If there is no time to transport, the quick transfer bags can be tied and concentrated somewhere, and then transported when there is free time; Before the arrival of strong winds and waves that are not suitable for workboat operations, two or more quick transfer bags can be connected in sequence to the net bag type interception net to increase the holding capacity of the interception net and prevent excessive accumulation of marine life in the front part of the net, causing damage to the net.

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