Water retaining assembly and air feeder

Abstract

The water retaining assembly comprises a bottom plate and a water retaining plate, the bottom plate is located below a bearing seat and fixed through foundation bolts of the bearing seat at the non-driving end, the water retaining plate is connected with the bottom plate, the water retaining plate protrudes out of the plane where the bottom plate is located, and the water retaining plate is used for shielding condensate water. Condensate water which originally passes through the bearing under the action of wind power is blocked by the water baffle and does not fall on the bearing, the condensate water falling on the bearing is reduced or prevented, and the problems that due to the fact that the condensate water falls on the bearing of the air feeder, the bearing is rusted, grease is emulsified by the condensate water, and the bearing is abraded abnormally are solved.

Description

Technical Field

[0001] This application relates to the field of nuclear power plant technology, and in particular to a water-blocking component and a blower. Background Technology

[0002] The DVG system (Auxiliary Feedwater Pump Room Ventilation System) is an important ventilation system in nuclear power plants, mainly ensuring ventilation, heating, and cooling functions for rooms such as generator rooms, cabinet rooms, steam pump rooms, and electric pump rooms.

[0003] The DVG system (auxiliary water supply pump room ventilation system) has two air supply fans connected in parallel. By delivering filtered and cooled air to rooms such as the steam generator auxiliary water supply pump room and the control rod drive mechanism generator room, the system ensures that the relevant equipment operates at a suitable ambient temperature, provides an appropriate number of air exchanges to the relevant rooms, and provides a comfortable working environment for the staff.

[0004] The blower is connected to the heat exchanger. In summer, condensate will fall onto the blower's bearings under the action of the wind, causing the bearings to rust. The condensate also causes the grease to emulsify, resulting in abnormal wear of the bearings.

[0005] Therefore, how to solve the above-mentioned problems caused by condensate entering the bearing has become a technical problem that urgently needs to be solved by those skilled in the art. Utility Model Content

[0006] This application proposes a water-blocking assembly to solve the problem of condensate entering the bearing. This application also proposes a blower.

[0007] To achieve the above objectives, this application provides a water-blocking assembly, including a base plate and a water-blocking plate. The base plate is located below the bearing housing at the non-drive end of the blower and has mounting holes that mate with the anchor bolts of the bearing housing. The water-blocking plate is connected to the base plate and is located on the side of the bearing housing away from the shaft to block condensate.

[0008] Preferably, in the above-mentioned water-blocking assembly, the height of the water-blocking plate is at least equal to the height of the bearing seat;

[0009] And / or, the length of the baffle is at least equal to the length of the bearing housing.

[0010] Preferably, in the above-mentioned water-blocking assembly, the length of the water-blocking plate is less than the length of the bottom plate.

[0011] Preferably, in the above-mentioned water-blocking assembly, the water-blocking plate is flush with the side of the bottom plate away from the bearing seat.

[0012] Preferably, in the above-mentioned water-blocking assembly, the water-blocking plate is a cover structure, and the end of the water-blocking plate facing the bearing seat is an open end, and the water-blocking plate covers one side of the bearing seat through the open end.

[0013] Preferably, in the above-mentioned water-blocking assembly, the cover is cubic or the shape of the cover is adapted to the bearing seat.

[0014] Preferably, in the above-mentioned water-blocking assembly, the water-blocking plate is welded to the bottom plate;

[0015] Alternatively, the baffle plate and the base plate are integrally bent into shape;

[0016] Alternatively, the baffle plate and the base plate are connected by bolts.

[0017] Preferably, in the above-mentioned water-blocking assembly, the base plate and the water-blocking plate are stainless steel plates or aluminum alloy plates.

[0018] A blower is provided for use in an auxiliary water supply pump room ventilation system, including a water-blocking component, wherein the water-blocking component is the blower described in any of the above embodiments.

[0019] Preferably, in the above-mentioned blower, the blower is a belt-driven centrifugal blower.

[0020] The water-blocking assembly provided in this application includes a base plate and a water-blocking plate. The base plate is located below the bearing housing and is fixed by the anchor bolts of the bearing housing on the non-drive end. The water-blocking plate is connected to the base plate and protrudes from the plane of the base plate. The water-blocking plate is used to block condensate, so that the condensate that would normally pass through the bearing under the action of wind is blocked by the water-blocking plate and will not fall on the bearing. This reduces or prevents condensate from falling on the bearing, thereby solving the problems of bearing corrosion caused by condensate falling on the blower bearing and abnormal bearing wear caused by condensate emulsifying grease.

[0021] This solution also discloses a blower suitable for auxiliary water supply pump room ventilation systems, including a water-blocking component. The water-blocking component is installed below the bearing housing at the non-drive end of the blower, and the water-blocking component is the same as that described in any of the above solutions. Since the water-blocking component has the aforementioned technical effects, the blower with this water-blocking component also has the same technical effects, which will not be elaborated further here. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are merely some examples or embodiments of this application. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort, and this application can be applied to other similar scenarios based on the provided drawings. Unless obvious from the linguistic context or otherwise specified, the same reference numerals in the drawings represent the same structures or operations.

[0023] Figure 1 This is a schematic diagram of the baffle assembly provided in this application;

[0024] Figure 2 This is a side view of the baffle assembly provided in this application;

[0025] Figure 3 This is a top view of the baffle assembly provided in this application.

[0026] in:

[0027] 1-Water-blocking component; 11-Base plate; 12-Water-blocking plate; 13-Assembly hole. Detailed Implementation

[0028] The present application will now be described in further detail with reference to the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are merely illustrative of the application and not intended to limit it. The described embodiments are only a part of the embodiments of the present application, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of the present application without inventive effort are within the scope of protection of the present application.

[0029] It should be noted that, for ease of description, only the parts relevant to the application are shown in the accompanying drawings. Unless otherwise specified, the embodiments and features described in this application can be combined with each other.

[0030] It should be understood that the terms "system," "apparatus," "unit," and / or "module" used in this application are a method of distinguishing different components, elements, parts, sections, or assemblies at different levels. However, if other terms can achieve the same purpose, they may be replaced by other expressions.

[0031] As indicated in this application and claims, unless the context clearly indicates otherwise, the words "a," "an," "a," and / or "the" are not specifically singular and may include the plural. Generally, the terms "comprising" and "including" only indicate the inclusion of expressly identified steps and elements, which do not constitute an exclusive list, and the method or apparatus may also include other steps or elements. An element defined by the phrase "comprising an..." does not exclude the presence of other identical elements in the process, method, product, or apparatus that includes the element.

[0032] In the description of the embodiments of this application, unless otherwise stated, " / " means "or", for example, A / B can mean A or B; "and / or" in this document is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, and B existing alone. Furthermore, in the description of the embodiments of this application, "multiple" refers to two or more.

[0033] Hereinafter, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature.

[0034] Please see Figures 1-3 .

[0035] This application discloses a water-blocking component 1, which is used to block condensate and prevent condensate from entering the bearing.

[0036] like Figure 1 The water-blocking assembly 1 shown includes a base plate 11 and a water-blocking plate 12.

[0037] The bearing housing at the non-drive end of the blower is fixed with anchor bolts. The water baffle assembly 1 is installed on the bearing housing at the non-drive end of the blower. The base plate 11 of the water baffle assembly 1 is located below the bearing housing and has mounting holes 13 that mate with the anchor bolts. During installation, the bearing housing at the non-drive end is disassembled, the base plate 11 is placed below the bearing housing, and it is fixed with the anchor bolts of the bearing housing at the non-drive end. In this solution, the base plate 11 and the bearing housing are fixed with the same anchor bolts, which eliminates the need to modify the bearing housing at the non-drive end and reduces the modification cost of the blower.

[0038] The baffle plate 12 is connected to the base plate 11. The baffle plate 12 protrudes from the plane of the base plate 11. The baffle plate 12 is located on one side of the bearing housing. Specifically, the baffle plate 12 is located on the side of the bearing housing where the shaft is not installed. The baffle plate 12 is used to block condensate water, so that the condensate water that originally passed through the bearing under the action of wind is blocked by the baffle plate 12 and will not fall on the bearing.

[0039] The water-blocking component 1 disclosed in this solution is installed on the blower. The base plate 11 of the water-blocking component 1 is used to connect the water-blocking component 1 to the blower. The water-blocking plate 12 of the water-blocking component 1 is used to block condensate and reduce or prevent condensate from falling on the bearing, so as to solve the problems of bearing corrosion caused by condensate falling on the blower bearing and abnormal bearing wear caused by condensate emulsifying grease.

[0040] like Figure 2 As shown, the baffle of the water-blocking assembly 1 is arranged perpendicular to the base plate 11. The baffle and base plate 11 are not limited to being perpendicular; an angle may exist between them. In some embodiments, the angle between the baffle and base plate 11 is 80°-100°. In embodiments where the angle between the baffle and base plate 11 is 80°-90°, the baffle is inclined relative to the base plate 11 in a direction away from the bearing seat. The baffle acts as a downward pressure on the airflow passing through it, and after the condensate collides with the baffle, the condensate flows downward along the baffle. In embodiments where the angle between the baffle and base plate 11 is 90°-100°, the baffle is inclined relative to the base plate 11 in a direction closer to the bearing seat. The baffle guides the airflow passing through it, causing the airflow to move upward, increasing the distance between the airflow passing through the baffle and the bearing, and further enhancing the water-blocking effect of the water-blocking assembly 1.

[0041] To ensure the water-blocking effect of the water-blocking assembly 1, the height of the water-blocking plate 12 in this design is at least equal to the height of the bearing housing. Specifically, the height of the water-blocking plate 12 can be equal to the height of the bearing housing, or it can be greater than the height of the bearing housing. It should be noted that the height of the water-blocking plate 12 is the dimension of the water-blocking plate 12 along the direction perpendicular to the plane of the base plate 11 and perpendicular to the axis of the bearing.

[0042] To further optimize the above technical solution, the length of the baffle plate 12 in this solution is at least equal to the length of the bearing housing. Specifically, the length of the baffle plate 12 can be equal to the length of the bearing housing, or it can be greater than the length of the bearing housing. It should be noted here that the length of the baffle plate 12 is the dimension of the baffle plate 12 along the plane parallel to the base and perpendicular to the axis of the bearing.

[0043] Preferably, the water-blocking effect of the water-blocking assembly 1 on the bearing is best when the height of the water-blocking plate 12 is greater than or equal to the height of the bearing seat and the length of the water-blocking plate 12 is greater than or equal to the length of the bearing seat.

[0044] The included angle between the baffle and the base plate 11 is 80°-100°, which can reduce the space occupied by the baffle along the axis of the bearing to a certain extent and does not affect the arrangement of the blower.

[0045] The bearing at the non-drive end is installed below the air duct, the bearing housing is also located below the air duct, and the water-blocking assembly 1 is also located below the air duct.

[0046] like Figure 2 The diagram shows a side view of the baffle assembly. The baffle is located on one side of the base plate 11 along the axis of the bearing, and the side of the base plate 11 with the baffle is the side away from the bearing. The side of the baffle away from the bearing is flush with the side of the base plate 11 away from the bearing. This arrangement reduces the size of the base plate 11 along the axis of the bearing and avoids misinstallation.

[0047] The baffle is not limited to being set on one side of the base plate 11 along the axis of the bearing, but can also be set in the middle of the base plate 11. No specific limitation is made here.

[0048] like Figure 3 As shown, this is a top view of the baffle assembly. The length of the baffle plate 12 is less than the length of the base plate 11, that is, the length of the base plate 11 is greater than the length of the baffle plate 12, so as to ensure the water-blocking effect of the baffle plate 12 while ensuring the installation strength of the baffle assembly 1.

[0049] In some embodiments, the baffle 12 is a plate-shaped structure used to block condensate.

[0050] In some embodiments, the baffle 12 is a cover structure, with the end of the cover structure facing the bearing seat being an open end. The baffle 12 of the cover structure covers one end of the bearing seat through the open end to block condensate.

[0051] like Figure 2 and Figure 3 As shown, the baffle plate 12 is a square cover with a certain thickness along the axial direction of the bearing. The baffle plate 12, with its cover structure, is installed on one side of the bearing housing, covering the outer perimeter of the bearing housing and improving the water-blocking effect of the baffle assembly 1.

[0052] In some embodiments, the shape of the baffle plate 12 of the cover structure is adapted to the shape of the bearing seat, which can cover the outer periphery of the bearing seat and has a good water blocking effect.

[0053] In some embodiments, the baffle plate 12 of the cover structure may also be of other shapes, such as the cross section of the baffle plate 12 of the cover structure along the direction perpendicular to the axis of the bearing being trapezoidal, circular or polygonal, etc., which are not specifically limited here.

[0054] The water baffle 12 is connected to the bottom plate 11 to form an integral structure.

[0055] In some embodiments, the baffle plate 12 is welded to the base plate 11. Specifically, the side of the baffle plate 12 that is in contact with the base plate 11 is welded to the base plate 11. This connection method is applicable to embodiments where the baffle plate 12 is a plate-shaped structure or a cover structure.

[0056] In some embodiments, the baffle plate 12 and the base plate 11 are integrally bent into shape; specifically, the baffle plate 12 and the base plate 11 are manufactured by sheet metal bending. This connection method is applicable to embodiments where the baffle plate 12 is a plate-shaped structure and embodiments where the baffle plate 12 is a cover structure.

[0057] In some embodiments, the baffle plate 12 and the base plate 11 are connected by bolts. In this embodiment, the baffle plate 12 and the base plate 11 are separate structures, and a connecting plate is provided on the side of the baffle plate 12 that is in contact with the base plate 11. The connecting plate has through holes, and the connecting cylinder is connected to the base plate 11 by bolts that mate with the through holes. This connection method is applicable to embodiments where the baffle plate 12 is a plate-shaped structure and embodiments where the baffle plate 12 is a cover structure.

[0058] The base plate 11 and the water baffle 12 of the water baffle assembly 1 are made of metal plates. Optionally, the base plate 11 and the water baffle 12 are stainless steel plates, aluminum alloy plates, or other metal plates.

[0059] The base plate 11 and the water baffle 12 can be made of the same material or different materials.

[0060] The base plate 11 and the water-retaining plate 12 are not limited to metal plates; they can also be plastic plates, rubber plates, etc. Optionally, the base plate 11 and the water-retaining plate 12 can be made of plates of the same thickness, or they can be made of plates of different thicknesses.

[0061] The side of the baffle plate 12 facing away from the bearing can be a smooth plane or a wavy surface. The wavy surface extends perpendicularly to the plane where the bottom plate 11 is located, thus guiding the condensate. Alternatively, a guide groove can be provided on the side of the baffle plate 12 facing away from the bearing.

[0062] like Figure 3 As shown, the mounting hole 13 of the base plate 11 is an elongated hole, and the length direction of the elongated hole is consistent with the axis direction of the bearing, so that the installation position of the base plate 11 can be finely adjusted, reducing the assembly difficulty of the water baffle assembly 1 and the blower.

[0063] This solution also discloses a blower suitable for an auxiliary water supply pump room ventilation system, including a water-blocking component. The water-blocking component is installed below the bearing housing at the non-drive end of the blower, and the water-blocking component is the water-blocking component described in any of the above solutions.

[0064] Since the water-blocking component has the above-mentioned technical effects, the blower with the water-blocking component also has the same technical effects, which will not be elaborated here.

[0065] In some embodiments, the blower is a belt-driven centrifugal fan.

[0066] The blower disclosed in this application can be applied to the ventilation system of the auxiliary feedwater pump room in a nuclear power plant, and can also be applied to other fields.

[0067] The above description is merely a preferred embodiment of this application and an explanation of the technical principles employed, and is not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. The scope of this application is not limited to technical solutions formed by specific combinations of the above-described technical features, but should also cover other technical solutions formed by arbitrary combinations of the above-described technical features or their equivalents without departing from the above-described application concept. For example, technical solutions formed by substituting the above features with (but not limited to) technical features with similar functions disclosed in this application.

Claims

1. A water-blocking component, characterized in that, Includes a base plate (11) and a baffle plate (12). The base plate (11) is located below the bearing housing at the non-drive end of the blower and has mounting holes (13) that mate with the anchor bolts of the bearing housing. The baffle plate (12) is connected to the base plate (11) and is located on the side of the bearing housing away from the shaft to shield condensate.

2. The water-blocking component according to claim 1, characterized in that, The height of the baffle plate (12) is at least equal to the height of the bearing seat; And / or, the length of the baffle plate (12) is at least equal to the length of the bearing seat.

3. The water-blocking component according to claim 1, characterized in that, The length of the baffle plate (12) is less than the length of the bottom plate (11).

4. The water-blocking component according to claim 1, characterized in that, The water baffle (12) is flush with the side of the bottom plate (11) away from the bearing seat.

5. The water-blocking component according to claim 1, characterized in that, The baffle plate (12) is a cover structure. The end of the baffle plate (12) facing the bearing seat is an open end. The baffle plate (12) covers one side of the bearing seat through the open end.

6. The water-blocking assembly according to claim 5, characterized in that, The cover is cubic or the shape of the cover is adapted to the bearing seat.

7. The water-blocking assembly according to claim 1, characterized in that, The baffle plate (12) is welded to the bottom plate (11); Alternatively, the baffle plate (12) and the base plate (11) are integrally bent into shape; Alternatively, the water baffle (12) and the base plate (11) are connected by bolts.

8. The water-blocking assembly according to claim 1, characterized in that, The base plate (11) and the water baffle (12) are made of stainless steel or aluminum alloy.

9. A blower, characterized in that, A water-blocking component is applicable to the ventilation system of the auxiliary water supply pump room. The water-blocking component is installed below the bearing seat of the non-drive end of the blower. The water-blocking component is the water-blocking component according to any one of claims 1-8.

10. The blower according to claim 9, characterized in that, The blower is a belt-driven centrifugal fan.

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