Nuclear power diesel generating set mounting structure

Abstract

The utility model provides a nuclear power diesel generating set installation structure which comprises a foundation, a leveling layer and a bottom beam, the leveling layer is poured on the foundation, the bottom beam is fixedly installed on the leveling layer through a plurality of foundation fixing bolts, and the foundation fixing bolts penetrate through the leveling layer to be matched with bolt holes formed in the foundation. The top of the bottom beam is connected with the unit through a vibration isolator and a damper, the bottom beam comprises a bottom plate, a top plate, a side vertical plate and rib plates, the side vertical plate is vertically and fixedly connected between the bottom plate and the top plate, a plurality of rib plates are further arranged between the bottom plate and the top plate, the bottom plate is connected with a foundation fixing bolt, and the top plate is connected with the unit through the vibration isolator and the damper. The leveling device is scientific and reasonable in structural design, easy to level, high in mounting precision and long in service life.

Description

TECHNICAL FIELD

[0001] The utility model relates to a kind of electromechanical equipment installation structure, specifically to a kind of nuclear power diesel generating set installation structure. BACKGROUND

[0002] Nuclear power plant diesel generating set belongs to large active equipment, it will generate larger vibration and stress when operating, installation requirement is high, installation difficulty is big, currently most nuclear power plants are installed using the way of traditional concrete foundation plus secondary grouting, the following problems exist in this installation structure:

[0003] 1) concrete foundation construction error is big, leading to unit installation plate leveling difficulty, installation precision is difficult to reach standard;

[0004] 2) grouting material maintenance period is long, leading to unit installation period is long;

[0005] 3) during the solidification of concrete, a large amount of heat is released shrinkage, leading to the existence of cavity in foundation, affect its strength;

[0006] 4) concrete foundation bearing capacity cannot meet higher requirement of anti-seismic capacity;

[0007] Based on this, a more reliable and more accurate installation structure needs to be designed. INVENTION CONTENTS

[0008] The technical problem to be solved by the utility model is to provide a nuclear power diesel generating set installation structure, which is scientifically and reasonably designed, easy to level, high in installation precision and long in service life.

[0009] To solve the above technical problems, the utility model adopts the technical scheme of a nuclear power diesel generating set installation structure, characterized by comprising foundation, leveling layer and bottom beam, the leveling layer is poured on the foundation, the bottom beam is fixedly installed on the leveling layer through a plurality of foundation fixing bolts, the foundation fixing bolts pass through the leveling layer and cooperate with bolt holes opened in the foundation, the top of the bottom beam is connected with the nuclear power diesel generating set through vibration isolator and damper, the bottom beam comprises bottom plate, top plate, side stand and rib plate, the side stand is fixedly connected between the bottom plate and the top plate vertically, a plurality of rib plates are further arranged between the bottom plate and the top plate, the foundation fixing bolts are connected to the bottom plate, and the top plate is connected with the unit through vibration isolator and damper.

[0010] Preferably, the thickness of the leveling layer is 30mm.

[0011] Preferably, protective sleeve pipes are pre-buried in the leveling layer at positions corresponding to the foundation fixing bolts to prevent the leveling layer from flowing into the bolt holes when pouring.

[0012] Preferably, the web plate comprises a first web plate, a second web plate and a third web plate connected at different angles and different positions.

[0013] Preferably, a pouring connecting frame is arranged between the bottom plate and the leveling layer, the pouring connecting frame comprises a channel steel and elastic isolation strips, the channel steel is arranged around the side wall of the bottom plate, and the elastic isolation strips are arranged in the area surrounded by the channel steel, and a plurality of elastic isolation strips divide the area surrounded by the channel steel into a plurality of 1m long fence areas.

[0014] Preferably, the leveling layer is poured by epoxy resin, and the gap in the connecting frame is also poured with epoxy resin.

[0015] Compared with the prior art, the utility model has the following advantages:

[0016] 1. The utility model discloses scientific and reasonable structure design, high installation precision, short installation period, long service life and high anti-seismic strength, and provides stable support and safe working environment for the unit.

[0017] 2. The utility model discloses that the epoxy resin is used to pour the leveling layer, and compared with the concrete foundation, the maintenance period is short, the sealing property is better, the inherent thermosetting is convenient for top leveling, the leveling difficulty is small, and the utility model discloses the following further detailed description in combination with the drawings and the embodiment. DRAWINGS

[0018] Fig. 1 It is the whole structure schematic diagram of the utility model.

[0019] Fig. 2 It is the structure schematic diagram of the bottom beam in the utility model.

[0020] Fig. 3 It is the side view sectional structure schematic diagram of the utility model.

[0021] Fig. 4 It is the partial enlarged structure schematic diagram of the connecting portion of the bottom beam and the leveling layer in the utility model.

[0022] Mark explanation:

[0023] . Specific implementation

[0024] As Figs. 1 to 4As shown, the utility model discloses foundation 1, leveling layer 3 and bottom beam 4, the foundation 1 pours leveling layer 3, bottom beam 4 is fixedly installed on leveling layer 3 through a plurality of anchor bolt 2, the anchor bolt 2 passes through the bolt hole that is set up in the cooperation of leveling layer 3 and foundation 1, the top of bottom beam 4 is connected nuclear power diesel generating set 7 through vibration isolator, damper, bottom beam 4 includes bottom plate 4-1, top plate 4-2, side vertical plate 4-3 and web, the vertical fixed connection side vertical plate 4-3 between bottom plate 4-1 and top plate 4-2, still be provided with a plurality of web between bottom plate 4-1 and top plate 4-2, the anchor bolt 2 of bottom plate 4-1 is connected, top plate 4-2 is connected unit through vibration isolator, damper.

[0025] In the embodiment, the bottom beam 4 is a steel member.

[0026] In the embodiment, the thickness of the leveling layer 3 is 30 mm.

[0027] In the embodiment, the anchor bolt 2 is pre-buried in the position corresponding to the anchor bolt 2 in the leveling layer 3, to prevent the bolt hole from flowing in when pouring the leveling layer 3.

[0028] In the embodiment, the web includes a first web 4-4, a second web 4-5 and a third web 4-6 connected at different angles and different positions.

[0029] In the embodiment, a pouring connecting frame is arranged between the bottom plate 4-1 and the leveling layer 3, the pouring connecting frame includes a channel steel 6 and an elastic isolation strip 8, the channel steel 6 is arranged around the side wall of the bottom plate 4-1, the elastic isolation strip 8 is arranged in the area surrounded by the channel steel 6, and the area surrounded by the channel steel 6 is divided into a plurality of fence areas with a length of 1 m by the plurality of elastic isolation strips 8.

[0030] In the embodiment, the leveling layer 3 is poured by epoxy resin, and the gap in the connecting frame is also poured by epoxy resin.

[0031] The installation steps of the utility model are as follows:

[0032] S1, the surface of the foundation 1 is chiseled and cleaned, the concrete foundation is exposed, and it is ensured that the setting area of the leveling layer 3 is free of dirt and sundries;

[0033] S2, the pouring formwork is peripherally supported in the area related to the leveling layer 3, the gap between the pouring formwork and the foundation is sealed by sealing cement, the bolt hole is opened at the corresponding position, the protective sleeve 6 is arranged around the bolt hole, the leveling layer 3 is poured by epoxy resin, the pouring thickness is 30 mm, and the hardening time of the leveling layer 3 is 5 days;

[0034] S3, the bottom beam 4 is transported to the leveling layer 3, a pouring connecting frame is arranged between the bottom beam 4 and the leveling layer 3, and a gap between the bottom beam 4 and the leveling layer 3 is filled with epoxy resin, so that the gap between the bottom beam 4 and the leveling layer 3 is filled with the epoxy resin, and the hardening time is 2 days;

[0035] S4, the ground screw fixing bolt 2 is tightened;

[0036] S5, the nuclear power diesel generating set 7 is introduced into a specified position by using a transport trolley, is seated on the bottom beam 4, a vibration isolator and a damper are installed and are tightened, and the installation of the nuclear power diesel generating set 7 is completed. The above is only a preferred embodiment of the present application, and does not limit the present application. Any simple modification, change and equivalent change made according to the technical essence of the present application to the above embodiment still belongs to the protection scope of the technical scheme of the present application.

Claims

1. A nuclear power diesel generator set mounting structure characterized by comprising: The application relates to a foundation (1), a leveling layer (3) and a bottom beam (4), the leveling layer (3) is poured on the foundation (1), the bottom beam (4) is fixedly installed on the leveling layer (3) through a plurality of foundation fixing bolts (2), the foundation fixing bolts (2) are matched with bolt holes in the foundation (1) and pass through the leveling layer (3), the top of the bottom beam (4) is connected with a nuclear power diesel generator set (7) through a vibration isolator and a damper, the bottom beam (4) comprises a bottom plate (4-1), a top plate (4-2), a side vertical plate (4-3) and a rib plate, the side vertical plate (4-3) is fixedly connected between the bottom plate (4-1) and the top plate (4-2) perpendicularly, a plurality of rib plates are arranged between the bottom plate (4-1) and the top plate (4-2), the foundation fixing bolts (2) are connected with the bottom plate (4-1), and the vibration isolator and the damper are arranged on the top plate (4-2).

2. The nuclear power diesel generator set mounting structure according to claim 1, characterized by The thickness of the leveling layer (3) is 30 mm.

3. The nuclear power diesel generator set mounting structure according to claim 1, characterized by The leveling layer (3) is pre-buried with a protective sleeve (5) at the position corresponding to the foundation fixing bolt (2).

4. The nuclear power diesel generator set mounting structure according to claim 1, characterized by The rib plate comprises a first rib plate (4-4), a second rib plate (4-5) and a third rib plate (4-6).

5. The nuclear power diesel generator set mounting structure according to claim 1, characterized by A pouring connecting frame is arranged between the bottom plate (4-1) and the leveling layer (3), the pouring connecting frame comprises a channel steel (6) and an elastic isolation strip (8), the channel steel (6) is arranged around the side wall of the bottom plate (4-1), the elastic isolation strip (8) is arranged in the area surrounded by the channel steel (6), and a plurality of elastic isolation strips (8) divide the area surrounded by the channel steel (6) into a plurality of fence areas with a length of 1 m.

6. The nuclear power diesel generator set mounting structure according to claim 1, characterized by The leveling layer (3) is made of a thermosetting material with high sealing and isolation performance.

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