Drainage device

Abstract

The utility model relates to the technical field of drainage equipment, in particular to a drainage device. The drainage device comprises a supporting frame, a water pump and a drainage pipe. Wherein the supporting frame comprises a supporting piece, and the supporting piece is used for being hung on equipment to be drained; the water pump is arranged in the supporting frame, one end of the drainage pipe communicates with the water outlet end of the water pump, and the other end of the drainage pipe extends to the outer side of the supporting frame. The water pump is hung on the pressure container through the supporting piece, then the water pump is hung in the pressure container, and water in the pressure container can be drained through the drainage pipe by starting the water pump remotely. According to the drainage device, the water pump is placed in the supporting frame, the supporting piece is arranged to be hung on the pressure container, it is guaranteed that the water pump is firmly and reliably fixed in the drainage process, and the inner surface of the pressure container cannot be collided and scratched when the water pump is placed in the pressure container.

Description

Technical Field

[0001] This utility model relates to the field of drainage equipment technology, and in particular to a drainage device. Background Technology

[0002] Flushing water from the reactor coolant and other primary loop systems is discharged into the pressure vessel. To ensure a controllable water level in the pressure vessel, it needs to be drained periodically. Currently, submersible pumps are commonly used for drainage. The pump is lowered to the bottom of the pressure vessel using ropes, and then pulled out using the same ropes after drainage is complete. However, during the lowering, operation, and pulling processes, the pump inevitably bumps and scrapes against the inner surface of the pressure vessel, causing irreversible damage. Therefore, a drainage device is needed to solve these problems. Utility Model Content

[0003] The purpose of this invention is to provide a drainage device that ensures the submersible pump is securely fixed during the drainage process of a pressure vessel, preventing bumps and scratches to the inner surface of the pressure vessel.

[0004] To achieve this objective, the present invention adopts the following technical solution:

[0005] Drainage device, including:

[0006] A support frame, the support frame including support members, the support members being used for hoisting onto the equipment to be drained;

[0007] A water pump, wherein the water pump is disposed within the support frame;

[0008] A drain pipe, one end of which is connected to the outlet of the water pump, and the other end of which extends to the outside of the support frame.

[0009] As an optional technical solution, a filter screen is provided at the water inlet end of the water pump.

[0010] As an optional technical solution, the support frame further includes a base plate and a connecting rod, with both ends of the connecting rod connected to the base plate and the support member, respectively, and the water pump mounted on the base plate.

[0011] As an optional technical solution, the water pump is provided with a first mounting hole, and the base plate is provided with a second mounting hole corresponding to the first mounting hole. The fastening assembly fixes the water pump to the base plate through the first mounting hole and the second mounting hole.

[0012] As an optional technical solution, the fastening assembly includes a bolt and a nut that mates with the bolt.

[0013] As an optional technical solution, multiple connecting rods are provided, and the multiple connecting rods are spaced apart on the base plate.

[0014] As an optional technical solution, the cross-sectional shape of the connecting rod is circular.

[0015] As an optional technical solution, the support includes a short sidewall and two long sidewalls. The two long sidewalls are parallel and spaced apart at both ends of the short sidewall. The end of the connecting rod away from the base plate is connected to the long sidewall. The long sidewall is used to connect to the drainage equipment.

[0016] As an optional technical solution, the connecting rod is welded to the base plate;

[0017] And / or, the connecting rod is welded to the support member.

[0018] As an optional technical solution, the water pump is a submersible pump.

[0019] The beneficial effects of this utility model are:

[0020] This utility model provides a drainage device, which includes a support frame, a water pump, and a drain pipe. The support frame includes a support member for suspending the device to be drained. The water pump is disposed within the support frame, and one end of the drain pipe is connected to the outlet of the water pump, while the other end extends to the outside of the support frame. The device suspends the water pump on a pressure vessel via the support member, thus suspending the water pump inside the pressure vessel. Remote activation of the water pump allows water to be drained from the pressure vessel through the drain pipe. This drainage device, by placing the water pump within the support frame and suspending it on the pressure vessel via the support member, ensures the water pump is securely and reliably fixed during drainage, and prevents the water pump from bumping or scratching the inner surface of the pressure vessel when placed inside. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the drainage device provided in an embodiment of the present invention.

[0022] In the picture:

[0023] 1. Support frame; 11. Support component; 111. Short side wall; 112. Long side wall; 12. Base plate; 13. Connecting rod; 2. Water pump; 3. Drain pipe; 4. Filter screen; 5. Fastening assembly. Detailed Implementation

[0024] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0025] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0026] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0027] In the description of this utility model, it should be noted that the terms "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this utility model is in use. They are used only for the convenience of describing this utility model and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," and "third," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0028] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set" and "connection" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0029] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0030] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0031] The following is combined with Figure 1 The technical solution of this utility model will be further illustrated through specific embodiments.

[0032] During nuclear loop flushing, in order to drain the pressure vessel while avoiding damage to its inner surface, this embodiment of the invention provides a drainage device, which includes a support frame 1, a water pump 2, and a drain pipe 3. The support frame 1 includes a support member 11, which can be hoisted onto the equipment to be drained. The water pump 2 is disposed within the support frame 1. One end of the drain pipe 3 is connected to the outlet of the water pump 2, and the other end of the drain pipe 3 extends to the outside of the support frame 1.

[0033] In detail, the water pump 2 is placed inside the support frame 1, and the support frame 1 is equipped with a support member 11 that can be hoisted onto the pressure vessel. When it is necessary to drain the pressure vessel, the drainage device is lifted by a crane and then slowly placed inside the pressure vessel. It is then hoisted onto the pressure vessel by the support member 11, thereby suspending the water pump 2 inside the pressure vessel. The water pump 2 can be remotely started to drain the water from the pressure vessel through the drain pipe 3. This drainage device, by placing the water pump 2 inside the support frame 1 and suspending it onto the pressure vessel by the support member 11, ensures that the water pump 2 is firmly and reliably fixed during the drainage process, and that the water pump 2 will not cause any bumps or scratches to the inner surface of the pressure vessel when it is placed inside.

[0034] In this embodiment, the water pump 2 is a submersible pump, which has a compact structure, small size and light weight, making it easy to install and maintain. At the same time, the submersible pump is highly efficient and energy-saving during operation and runs smoothly.

[0035] Furthermore, a filter screen 4 is provided at the water inlet of the water pump 2. The filter screen 4 can filter the water entering the water pump 2, prevent solid particles or debris from entering the water pump 2, protect the internal components of the pump body from damage, extend the service life of the water pump 2, and thus ensure the normal operation of the drainage device.

[0036] Furthermore, the support frame 1 also includes a base plate 12 and a connecting rod 13. The two ends of the connecting rod 13 are respectively connected to the base plate 12 and the support member 11, and the water pump 2 is mounted on the base plate 12. In this embodiment, the support frame 1 is provided with a base plate 12 and a connecting rod 13. The base plate 12 is connected to the support member 11 through the connecting rod 13, and the water pump 2 is placed on the base plate 12 for support. The water pump 2 is then suspended on the pressure vessel through the support member 11, thereby suspending the water pump 2 inside the pressure vessel to achieve drainage of the pressure vessel.

[0037] Optionally, the connecting rod 13 is welded to the base plate 12; and / or, the connecting rod 13 is welded to the support member 11. In this embodiment, the connecting rod 13 and the base plate 12, and the connecting rod 13 and the support member 11 are both welded together, resulting in high strength and good sealing at the connection, which is beneficial to improving the stability of the support frame 1 structure.

[0038] Furthermore, the water pump 2 is provided with a first mounting hole, and the base plate 12 is provided with a second mounting hole corresponding to the first mounting hole. The fastening assembly 5 fixes the water pump 2 to the base plate 12 through the first mounting hole and the second mounting hole. Using the fastening assembly 5 to fix the water pump 2 to the base plate 12 is convenient and facilitates the installation and maintenance of the water pump 2. Optionally, in this embodiment, the fastening assembly 5 uses a bolt and a nut that mates with the bolt. One end of the bolt passes through the second mounting hole and the first mounting hole, and the nut is screwed onto the other end of the bolt and abuts against the water pump 2. Using a bolt and nut facilitates installation and is highly practical.

[0039] Furthermore, four first mounting holes are provided, located at the four corners of the base of the water pump 2. Correspondingly, four second mounting holes and four fastening components 5 are provided. The four fastening components 5 fix the water pump 2 to the base plate 12, ensuring that the water pump 2 is subjected to uniform force and is securely and reliably installed.

[0040] Furthermore, multiple connecting rods 13 are provided, and the multiple connecting rods 13 are spaced apart on the base plate 12. In this embodiment, the base plate 12 has a square structure, and four connecting rods 13 are provided. The four connecting rods 13 are located at the four corners of the base plate 12, and the four connecting rods 13 connect the base plate 12 and the support member 11, which improves the reliability of the connection between the base plate 12 and the support member 11, and thus improves the stability of the entire support frame 1 structure.

[0041] Optionally, the cross-sectional shape of the connecting rod 13 is circular. By setting the cross-sectional shape of the connecting rod 13 to be circular, and consequently, the peripheral wall of the connecting rod 13 being an arc surface, the arc surface can prevent the connecting rod 13 from causing scratches or impacts to the inner surface of the pressure vessel when it collides with the inner surface of the pressure vessel during the placement of the drainage device inside the pressure vessel. The cross-sectional shape of the connecting rod 13 can also be elliptical; this embodiment does not specifically limit this.

[0042] Furthermore, the support member 11 includes a short sidewall 111 and two long sidewalls 112. The two long sidewalls 112 are parallel and spaced apart at both ends of the short sidewall 111. The end of the connecting rod 13 away from the base plate 12 is connected to the long sidewall 112. The long sidewall 112 is used to connect to the drainage equipment. Specifically, in this embodiment, two short sidewalls 111 are provided, which are parallel and spaced apart between the two long sidewalls 112. Both ends of the short sidewalls 111 are connected to the two long sidewalls 112. The two long sidewalls 112 and the two short sidewalls 111 form a ladder-shaped structure. The end of the connecting rod 13 away from the base plate 12 is connected to the long sidewall 112. Both ends of the two long sidewalls 112 extend outward from the outside of the two short sidewalls 111. The outside of the two long sidewalls 112 are suspended on the pressure vessel, thereby realizing the suspension of the water pump 2.

[0043] The following details the specific process of placing the drainage device provided in this embodiment of the invention inside the pressure vessel: First, the water pump 2 is placed on the base plate 12, and the base plate 12 is fixedly connected to the water pump 2 with bolts and nuts. A filter screen 4 is installed at the inlet end of the water pump 2, and a drain pipe 3 is installed at the outlet end, extending to the outside of the support frame 1. Then, the entire drainage device is lifted by a lifting machine and slowly lowered into the pressure vessel. The support member 11 is supported on the pressure vessel and secured with sleepers. The water pump 2 is suspended inside the pressure vessel. Finally, the water pump 2 is remotely started, and the water in the pressure vessel is discharged through the drain pipe 3. After drainage is completed, the drainage device is lifted out of the pressure vessel. During the drainage process, the water pump 2 in the drainage device is installed stably and securely, and the lowering and lifting process of the water pump 2 will not cause any bumps or scratches to the inner surface of the pressure vessel.

[0044] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating the present utility model, and are not intended to limit the implementation of the present utility model. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. A drainage device, characterized in that, include: A support frame (1) includes a support member (11) for hoisting onto the equipment to be drained; A water pump (2) is disposed within the support frame (1); Drain pipe (3), one end of which is connected to the outlet of the water pump (2), and the other end of which extends to the outside of the support frame (1).

2. The drainage device according to claim 1, characterized in that, The water pump (2) is equipped with a filter screen (4) at its inlet end.

3. The drainage device according to claim 1, characterized in that, The support frame (1) also includes a base plate (12) and a connecting rod (13). The two ends of the connecting rod (13) are respectively connected to the base plate (12) and the support member (11). The water pump (2) is mounted on the base plate (12).

4. The drainage device according to claim 3, characterized in that, The water pump (2) is provided with a first mounting hole, and the base plate (12) is provided with a second mounting hole corresponding to the first mounting hole. The fastening assembly (5) fixes the water pump (2) to the base plate (12) through the first mounting hole and the second mounting hole.

5. The drainage device according to claim 4, characterized in that, The fastening assembly (5) includes a bolt and a nut that mates with the bolt.

6. The drainage device according to claim 3, characterized in that, The connecting rod (13) is provided in multiple parts, and the multiple connecting rods (13) are spaced apart on the base plate (12).

7. The drainage device according to claim 3, characterized in that, The cross-sectional shape of the connecting rod (13) is circular.

8. The drainage device according to claim 3, characterized in that, The support member (11) includes a short sidewall (111) and two long sidewalls (112). The two long sidewalls (112) are parallel and spaced apart at both ends of the short sidewall (111). The end of the connecting rod (13) away from the base plate (12) is connected to the long sidewall (112). The long sidewall (112) is used to be hoisted onto the drainage equipment.

9. The drainage device according to claim 3, characterized in that, The connecting rod (13) is welded to the base plate (12); And / or, the connecting rod (13) is welded to the support member (11).

10. The drainage device according to any one of claims 1-9, characterized in that, The water pump (2) is a submersible pump (2).

Images