Drainage device

Abstract

The utility model relates to the technical field of pipeline drainage, in particular to a drainage device which comprises a shell and a flow guide assembly, the shell is used for inserting a floor drain, the shell is provided with a drainage cavity, a drainage opening of the drainage cavity is used for being opposite to the floor drain, the peripheral wall of the shell is provided with at least two connecting holes, and the connecting holes are communicated with the drainage cavity; one ends of the at least two groups of flow guide assemblies extend into the at least two connecting holes in a one-to-one correspondence manner, and the other ends of the flow guide assemblies are used for being connected with equipment to be drained. The drainage device can meet the drainage requirement that a plurality of drainage valves are located on one floor drain at the same time, the drainage efficiency is improved, the flow guide assembly extends into the connecting hole, leakage of radioactive substances is reduced, and the drainage safety is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of pipeline drainage, in particular to a drainage device. Background Art

[0002] The nuclear island is a general term for the nuclear reactor and various systems related to the reactor inside the containment of a nuclear power plant. The main function of the nuclear island is to generate steam using nuclear fission energy. During the operation of a nuclear power plant, the drainage and exhaust of the nuclear island system are routine operations. The drain valve is directly led to the floor drain for drainage to ensure the normal operation of the nuclear power system. Due to the limited number of floor drains, it is impossible to meet the discharge requirements of multiple drain valves simultaneously. Therefore, a large number of drainage hoses are stacked at the floor drain opening to meet the large amount of drainage work. This not only has low drainage efficiency, but also the discharged water contains radioactive media. There is no fixing measure for the drainage hoses, and there is a risk of radioactive media leakage during the drainage process, causing radiation pollution to the staff, equipment, and site. Therefore, there is an urgent need for a drainage device. Summary of the Utility Model

[0003] The purpose of the utility model is to provide a drainage device to improve the drainage efficiency and safety.

[0004] To achieve the above purpose, the utility model adopts the following technical solutions:

[0005] The drainage device includes:

[0006] A housing, the housing is provided with a drainage cavity, the housing is used for being inserted into a floor drain, and the drainage port of the drainage cavity is used for facing the floor drain. At least two connection holes are provided on the peripheral wall of the housing, and the connection holes are communicated with the drainage cavity;

[0007] A diversion assembly, at least two groups of the diversion assemblies are provided, one ends of at least two groups of the diversion assemblies respectively extend into at least two of the connection holes, and the other ends of the diversion assemblies are used for connecting with the equipment to be drained.

[0008] Further, the diameter of the drainage port is smaller than the diameter of the drainage cavity;

[0009] The diversion assembly includes a diversion pipe and a connection pipe group. The diversion pipe is arranged in the drainage cavity. One end of the connection pipe group extends into the connection hole and is communicated with the water inlet end of the diversion pipe. The other end of the connection pipe group is used for connecting with the equipment to be drained, and the water outlet of the diversion pipe faces the drainage port.

[0010] Further, the connecting pipe group includes an adapter elbow and a connector. The adapter elbow is located in the drainage cavity. One end of the adapter elbow faces the connecting hole, and the other end points to the drainage port along the axial direction of the drainage port. One end of the connector communicates with one end of the adapter elbow, and the other end of the connector is used to connect with the device to be drained. The other end of the adapter elbow communicates with the water inlet end of the diversion pipe.

[0011] Further, the connector is a tapered joint.

[0012] Further, the hydrophobic device further includes guide vanes. The guide vanes include a fixed shaft and at least two guide vane bodies circumferentially spaced apart from each other on the fixed shaft around the fixed shaft. The guide vanes are fixedly arranged in the drainage cavity;

[0013] One end of the diversion assembly is located between two adjacent guide vane bodies.

[0014] Further, the guide vane body is trapezoidal. The guide vane body has a short side wall and a long side wall that are parallel to each other. The short side wall is fixedly connected to the fixed shaft, and the long side wall abuts against the inner wall of the drainage cavity.

[0015] Further, the housing is provided with a first through hole, and the fixed shaft is inserted into the first through hole.

[0016] Further, the fixed shaft is a hollow shaft.

[0017] Further, the housing includes a housing body and a housing cover. The housing cover closes the top of the housing body so that the housing cover and the housing body enclose the drainage cavity. The drainage port is arranged at the bottom of the housing body. At least two connecting grooves are circumferentially spaced apart from each other around the housing body at the top of the housing body. The connecting grooves are recessed along the axial direction of the drainage port. The housing cover closes the top of the housing body so that the groove walls of the connecting grooves and the housing cover enclose the connecting hole.

[0018] Further, the housing cover is provided with a second through hole.

[0019] The beneficial effects of the present utility model:

[0020] An embodiment of the present utility model provides a hydrophobic device. The hydrophobic device includes a housing and a diversion assembly. The housing is used to insert a floor drain. The housing is provided with a drainage cavity, and the drainage outlet of the drainage cavity is used to face the floor drain. At least two connection holes are provided on the peripheral wall of the housing, and the connection holes communicate with the drainage cavity. At least two groups of diversion assemblies are provided. One ends of at least two groups of diversion assemblies extend into at least two connection holes in a one-to-one correspondence, and the other ends of the diversion assemblies are used to connect with the equipment to be drained. This hydrophobic device can simultaneously meet the drainage requirements of multiple drain valves in one floor drain, improving the drainage efficiency. Moreover, by extending the diversion assembly into the connection hole, the leakage of radioactive substances is reduced, ensuring the safety of drainage. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 FIG. 6 is a schematic structural diagram of the hydrophobic device provided by the embodiment of the present utility model;

[0022] Figure 2 FIG. 10 is a cross-sectional view of the hydrophobic device provided by the embodiment of the present utility model;

[0023] Figure 3 FIG. 14 is a schematic structural diagram of the diversion assembly provided by the embodiment of the present utility model;

[0024] Figure 4 FIG. 18 is a schematic structural diagram of the hydrophobic device provided by the embodiment of the present utility model with the shell cover removed.

[0025] In the figure:

[0026] 1. Housing; 11. Shell body; 111. Drainage outlet; 112. Connection groove; 12. Shell cover; 121. First through hole; 122. Second through hole;

[0027] 2. Diversion assembly; 21. Diversion pipe; 22. Adapter elbow; 23. Connector;

[0028] 3. Guide vane; 31. Fixed shaft; 32. Guide vane body. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0029] To make the objectives, technical solutions, and advantages of the embodiments of the present utility model clearer, the technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Apparently, the described embodiments are some, but not all, of the embodiments of the present utility model. The components of the embodiments of the present utility model usually described and illustrated in the accompanying drawings here can be arranged and designed in various different configurations.

[0030] Accordingly, the following detailed description of the embodiments of the present utility model provided in the drawings is not intended to limit the scope of the present utility model claimed, but merely represents selected embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments in the present utility model without creative efforts shall fall within the scope of protection of the present utility model.

[0031] It should be noted that like reference numerals and letters denote like items in the following drawings. Therefore, once an item is defined in one drawing, it does not require further definition and explanation in subsequent drawings.

[0032] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the utility model product is usually placed during use. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present utility model. In addition, the terms "first", "second", "third", etc. are only used for descriptive distinction and should not be construed as indicating or implying relative importance. In the description of the present utility model, unless otherwise specified, the meaning of "a plurality" is two or more.

[0033] In the description of the present utility model, it should also be noted that unless otherwise clearly defined and limited, the terms "set" 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. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0034] In the present utility model, unless otherwise clearly defined and limited, the first feature being "on" or "under" the second feature may include the first and second features being in direct contact, or may include the first and second features not being in direct contact but being in contact through additional features therebetween. Moreover, the first feature being "above", "over" and "on top of" the second feature includes the first feature being directly above and obliquely above the second feature, or merely indicating that the first feature has a higher horizontal height than the second feature. The first feature being "under", "beneath" and "underneath" the second feature includes the first feature being directly below and obliquely below the second feature, or merely indicating that the first feature has a lower horizontal height than the second feature.

[0035] Embodiments of the present utility model will be described in detail below. Examples of the embodiments are shown in the accompanying drawings, where the same or similar reference numerals denote the same or similar elements or elements with the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present utility model and should not be construed as a limitation of the present utility model.

[0036] The following will Figures 1-4 further illustrate the technical solution of the present utility model in conjunction with

[0037] During the operation of a nuclear power plant, the nuclear island is directly drained to the floor drain through a drain valve to ensure the normal operation of the nuclear power system. However, due to the limited number of floor drains, it is impossible to meet the discharge requirements of multiple drain valves simultaneously. Therefore, a large amount of drainage work is satisfied by stacking multiple drain hoses at the floor drain opening. This not only has low drainage efficiency, but also the discharged water contains radioactive media. There is no fixing measure for the drain hoses, and there is a risk of radioactive media leakage during the drainage process, causing radiation pollution to the staff, equipment, and site.

[0038] To solve the above problems, an embodiment of the present utility model provides a drainage device. The drainage device includes a housing 1 and a diversion assembly 2. The housing 1 is used to insert into the floor drain. The housing 1 is provided with a drainage cavity, and the drainage outlet 111 of the drainage cavity is used to face the floor drain. At least two connection holes are provided on the peripheral wall of the housing 1, and the connection holes communicate with the drainage cavity; at least two groups of diversion assemblies 2 are provided. One ends of at least two groups of diversion assemblies 2 extend into at least two connection holes in a one-to-one correspondence, and the other ends of the diversion assemblies 2 are used to connect with the equipment to be drained.

[0039] Specifically, select a floor drain near the drain valve of the equipment to be drained. Open the floor drain cover plate, place the housing 1 at the center of the floor drain, extend one end of the diversion assembly 2 into the connection hole, and connect the other end to the downstream pipeline of the drain valve of the equipment to be drained through a drain hose. Open the drain valve, and the water is directly drained to the floor drain by the diversion assembly 2. This drainage device can simultaneously meet the drainage requirements of multiple drain valves at one floor drain, improve the drainage efficiency, and reduce the leakage of radioactive substances, ensuring the safety of drainage.

[0040] In this embodiment, the housing 1 is made of stainless steel, which is easy to process, clean, and reuse.

[0041] For the convenience of processing the housing 1, in this embodiment, the housing 1 is set to be split. The housing 1 includes a housing body 11 and a housing cover 12. Card slots are provided on both the housing body 11 and the housing cover 12. After aligning the housing cover 12 with the housing body 11 and rotating the housing cover 12, the housing cover 12 can be hermetically fixed to the housing body 11, thus enclosing a drainage cavity and further preventing the splashing of radioactive substances. The drain outlet 111 is provided at the bottom of the housing body 11. At least two connecting grooves 112 are circumferentially spaced around the top of the housing body 11. The connecting grooves 112 are recessed along the axial direction of the drain outlet 111 and can support the diversion assembly 2. The housing cover 12 closes the top of the housing body 11, and the groove walls of the connecting grooves 112 and the housing cover 12 can enclose a connecting hole to limit the diversion assembly 2.

[0042] Further, as Figure 1 shown, a second through hole 122 is provided on the housing cover 12. Through the second through hole 122, the internal situation of the drainage cavity can be observed in real time to facilitate timely adjustment of the drainage plan.

[0043] In order to reduce the leakage of radioactive substances during the drainage process, the size of the housing 1 is set according to the size of the floor drain, that is, the outer diameter of the housing 1 corresponds to the inner diameter of the floor drain, so that when the housing 1 is placed on the floor drain, it can fit tightly with the floor drain, with good sealing performance and reducing the risk of external leakage of radioactive substances.

[0044] The number of connecting holes on the housing 1 is set according to requirements. Optionally, in this embodiment, five connecting holes are provided on the circumferential wall of the housing 1. The five connecting holes are circumferentially spaced around the housing 1. Five groups of diversion assemblies 2 are provided. One ends of the five groups of diversion assemblies 2 extend into the five connecting holes one by one, and the other ends of the five groups of diversion assemblies 2 are respectively connected to the downstream pipes of the drain valves of five devices through hydrophobic hoses, meeting the drainage requirements of the five devices at the same time and improving the drainage efficiency.

[0045] To avoid water accumulation in the drainage cavity on the housing 1 and the splashing of radioactive substances, as Figure 2 and 3 shown, the diameter of the drain outlet 111 is smaller than the diameter of the drainage cavity. The diversion assembly 2 includes a diversion pipe 21 and a connecting pipe group. The diversion pipe 21 is arranged in the drainage cavity, and the water outlet is oriented towards the drain outlet 111. One end of the connecting pipe group extends into the connecting hole and is communicated with the water inlet end of the diversion pipe 21. The other end of the connecting pipe group is connected to the device to be drained. Specifically, after the water discharged from the device flows through the connecting pipe group, it directly flows from the water outlet of the diversion pipe 21 to the drain outlet 111, avoiding water accumulation in the housing 1. Through the smooth transition of the diversion pipe 21, the flow rate of water is reduced, and the splashing of radioactive substances is reduced.

[0046] Further, the connecting pipe group includes an adapter elbow 22 and a connecting member 23. The adapter elbow 22 is located in the drainage cavity. One end of the adapter elbow 22 faces the connecting hole, and the other end points to the drainage port 111 along the axial direction of the drainage port 111. One end of the connecting member 23 is communicated with one end of the adapter elbow 22, and the other end of the connecting member 23 is used to connect with the device to be drained. The other end of the adapter elbow 22 is communicated with the water inlet end of the diversion pipe 21. Through the adapter elbow 22 and the diversion pipe 21, it is avoided that the diversion assembly 2 is bent when extending into the drainage cavity, improving the hydrophobic effect. The diversion assembly 2 is connected to the device to be drained through the connecting member 23, with firm connection and good sealing performance, avoiding water leakage during the hydrophobic process. Specifically, the adapter elbow 22 and the connecting member 23 as well as the adapter elbow 22 and the diversion pipe 21 all adopt a welded connection method, which is convenient for processing, firm and reliable.

[0047] Optionally, in this embodiment, the connecting member 23 adopts a taper joint, which is convenient for installation and disassembly and has reliable performance. The taper joint is a prior art and will not be elaborated here.

[0048] As Figure 4 shown, the hydrophobic device further includes a guide vane 3. The guide vane 3 is fixedly arranged in the drainage cavity. Further, the guide vane 3 includes a fixed shaft 31 and at least two guide vane bodies 32 arranged at intervals around the circumference of the fixed shaft 31. The guide vane 3 is fixedly arranged in the drainage cavity, and the guide vane bodies 32 are arranged in one-to-one correspondence with the diversion assembly 2. The diversion pipe 21 in the diversion assembly 2 is located between two adjacent guide vane bodies 32, which can buffer the water flow, so that the water discharged from the diversion pipe 21 can be directly diverted to the drainage port 111 to prevent splashing.

[0049] Optionally, a first through hole 121 is provided on the housing 1, and the fixed shaft 31 is inserted into the first through hole 121, which is convenient for connection. Further, the fixed shaft 31 is set as a hollow shaft, which can exhaust the inside of the drainage cavity during the hydrophobic process and relieve the drainage pressure.

[0050] The shape of the guide vane body 32 is trapezoidal, which has two parallel short side walls and long side walls. The short side walls are fixedly connected to the fixed shaft 31, and the long side walls are in contact with the inner wall of the drainage cavity. This setting can prevent the guide vane body 32 from obstructing the liquid flowing out of the diversion pipe 21, so that the liquid flowing out of the diversion pipe 21 can smoothly flow into the drainage port 111.

[0051] The following details the specific usage steps of the hydrophobic device in this embodiment: First, select a drainage floor drain near the steam trap of the device to be drained, and open the floor drain cover plate; then connect one end of the hydrophobic hose to the downstream pipe of the steam trap and fix it with a pipe clamp, and connect the other end of the hydrophobic hose to the diversion assembly 2 and fix it with a pipe clamp; place the guide vane 3 in the drainage cavity so that the guide vane body 32 faces the drain port 111; then place the housing body 11 with the guide vane 3 installed at the center of the floor drain so that the outer circle of the housing body 11 is closely fitted with the inner circle of the floor drain; then place the diversion assembly 2 with the hydrophobic hose in the connection groove 112 on the housing body 11 so that the diversion pipe 21 extends into the drainage cavity and the water outlet end of the diversion pipe 21 faces the drain port 111. Finally, align the housing cover 12 with the housing body 11 and rotate it tightly. Open the steam trap to drain water.

[0052] Obviously, the above embodiments of the present invention are merely examples for clearly explaining the present invention, rather than limiting the implementation manners of the present invention. For those of ordinary skill in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation manners here. Any modifications, equivalent replacements, and improvements made within the spirit and principle of the present invention shall be included in the protection scope of the claims of the present invention.

Claims

1. A hydrophobic device, characterized in that: include: A shell (1), the shell (1) being provided with a drainage cavity, the shell (1) being used to be inserted into a floor drain, and the drainage port (111) of the drainage cavity being used to be opposite to the floor drain, and the peripheral wall of the shell (1) being provided with at least two connection holes, the connection holes being in communication with the drainage cavity; A flow guide component (2), wherein at least two groups of the flow guide components (2) are provided, one end of at least two groups of the flow guide components (2) extends into at least two of the connection holes in a one-to-one correspondence, and the other end of the flow guide component (2) is used to be connected to the equipment to be drained.

2. The hydrophobic device according to claim 1, characterized in that: The diameter of the drainage port (111) is smaller than the diameter of the drainage cavity; The flow guide assembly (2) comprises a flow guide pipe (21) and a connecting pipe group, wherein the flow guide pipe (21) is arranged in the drainage cavity, one end of the connecting pipe group extends into the connecting hole and is connected to the water inlet end of the flow guide pipe (21), and the other end of the connecting pipe group is used to be connected to the equipment to be drained, and the water outlet of the flow guide pipe (21) is arranged toward the drainage port (111).

3. The hydrophobic device according to claim 2, characterized in that: The connecting pipe group comprises a transition elbow (22) and a connecting piece (23); the transition elbow (22) is located in the drainage cavity; one end of the transition elbow (22) is opposite to the connecting hole, and the other end points to the drainage outlet (111) along the axial direction of the drainage outlet (111); one end of the connecting piece (23) is connected to one end of the transition elbow (22); the other end of the connecting piece (23) is used to be connected to the equipment to be drained; and the other end of the transition elbow (22) is connected to the water inlet end of the guide pipe (21).

4. The hydrophobic device according to claim 3, characterized in that: The connecting piece (23) is a pagoda joint.

5. The hydrophobic device according to any one of claims 1 to 4, characterized in that: The drain device further comprises a guide vane (3), the guide vane (3) comprising a fixed shaft (31) and at least two guide vane bodies (32) arranged on the fixed shaft (31) at intervals in the circumferential direction around the fixed shaft (31), and the guide vane (3) is fixedly arranged in the drainage cavity; One end of the flow guide component (2) is located between two adjacent guide vane bodies (32).

6. The hydrophobic device according to claim 5, characterized in that: The guide vane body (32) is trapezoidal, and has a short side wall and a long side wall that are parallel to each other, the short side wall is fixedly connected to the fixed shaft (31), and the long side wall abuts against the inner wall of the drainage cavity.

7. The hydrophobic device according to claim 5, characterized in that: The housing (1) is provided with a first through hole (121), and the fixed shaft (31) is inserted into the first through hole (121).

8. The hydrophobic device according to claim 7, characterized in that: The fixed shaft (31) is a hollow shaft.

9. The hydrophobic device according to any one of claims 1 to 4, characterized in that: The shell (1) comprises a shell body (11) and a shell cover (12); the shell cover (12) closes the top of the shell body (11) so that the shell cover (12) and the shell body (11) are arranged to form the drainage cavity; the drainage port (111) is arranged at the bottom of the shell body (11); at least two connecting grooves (112) are arranged at intervals around the circumference of the shell body (11) on the top of the shell body (11); the connecting grooves (112) are recessed along the axial direction of the drainage port (111); the shell cover (12) closes the top of the shell body (11) so that the groove wall of the connecting groove (112) and the shell cover (12) are arranged to form the connecting hole.

10. The hydrophobic device according to claim 9, characterized in that: The shell cover (12) is provided with a second through hole (122).

Images