CN216592849U

CN216592849U - Trapezoidal water chamber for large power station condenser

Info

Publication number: CN216592849U
Application number: CN202123420420.XU
Authority: CN
Inventors: 王丽娜; 刘杰; 耿建华; 张健; 王丽红
Original assignee: Harbin Turbine Auxiliary Equipment Engineering Co Ltd
Current assignee: Harbin Turbine Auxiliary Equipment Engineering Co Ltd
Priority date: 2021-12-30
Filing date: 2021-12-30
Publication date: 2022-05-24
Anticipated expiration: 2031-12-30

Abstract

The utility model relates to a trapezoidal water chamber for a large-scale power station condenser, in particular to a water chamber for a condenser, aiming at solving the problem that the volume of the upper part and the lower part of the existing water chamber are the same, which causes uneven flow velocity in a heat exchange pipe, the water chamber comprises a trapezoidal conical shell, a top plate, a bottom plate, a circulating water connecting pipe and a gas discharging pipe; the top and the bottom opening of trapezoidal awl shell, the top area of trapezoidal awl shell is less than the bottom area, and the top is installed on the top of trapezoidal awl shell, and the bottom plate is installed on the bottom of trapezoidal awl shell, and the circulating water is taken over and is installed on the bottom of bottom plate, and the circulating water is taken over and is set up with the bottom plate intercommunication, and the gas release pipe is vertical to be installed on the top plate, and gas release pipe and top plate intercommunication set up. The utility model belongs to condenser hydroecium structure.

Description

Trapezoidal water chamber for large power station condenser

Technical Field

The utility model relates to a condenser hydroecium, concretely relates to large-scale power station condenser is with trapezoidal hydroecium. Belongs to a water chamber structure of a condenser.

Background

The condenser mainly comprises a throat part, a lower part of a shell, a heat exchange tube, a water chamber and the like, and the water chamber is an important component of the condenser. The volumes of the upper part and the lower part of the water chamber of the condenser of the large power station are the same when seen from the end part of the condenser. Because steam flows from the top down in the condenser casing, and the limit is flowed and is condensed, so more toward casing lower part steam volume is less, and then the steam passageway of needs reduces gradually, so the condenser tube bank often designs into narrow width down's shape, the utility model provides a trapezoidal hydroecium that suits with the tube bank shape, the narrow lower extreme in hydroecium upper end is wide, and then hydroecium upper portion volume is little, the lower part volume is big, can make the intraductal velocity of flow of heat exchange tube upper portion tube bank and lower part tube bank more even, is favorable to guaranteeing the heat transfer performance of condenser. The water chamber shell adopts a conical shell structure, so that the circulating water flow can be further improved, the internal resistance of the water chamber is reduced, and the pressure bearing capacity is increased. The inside no flowing dead zone of hydroecium effectively prevents the rubber ball gathering.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the problem of uneven flow velocity in the heat exchange tube because the upper and lower part volumes of the existing water chamber are the same, and then providing a trapezoidal water chamber for the large-scale power station condenser.

The technical problem is solved by the following scheme:

the device comprises a trapezoidal conical shell, a top plate, a bottom plate, a circulating water connecting pipe and an air discharging pipe; the top and the bottom opening of trapezoidal awl shell, the top area of trapezoidal awl shell is less than the bottom area, and the top is installed on the top of trapezoidal awl shell, and the bottom plate is installed on the bottom of trapezoidal awl shell, and the circulating water is taken over and is installed on the bottom of bottom plate, and the circulating water is taken over and is set up with the bottom plate intercommunication, and the gas release pipe is vertical to be installed on the top plate, and gas release pipe and top plate intercommunication set up.

Compared with the prior art, the utility model the beneficial effect who contains is:

1. the utility model provides a trapezoidal hydroecium that suits with tube bank shape, the narrow lower extreme in hydroecium upper end is wide, and then the hydroecium upper portion volume is little, the lower part volume is big, can make the intraductal velocity of flow of heat exchange tube upper portion tube group and lower part tube group more even, is favorable to guaranteeing the heat transfer performance of condenser.

2. The water chamber shell adopts a conical shell structure, so that the circulating water flow can be further improved, the internal resistance of the water chamber is reduced, and the pressure bearing capacity is increased. The inside no flowing dead zone of hydroecium effectively prevents the rubber ball gathering.

3. Trapezoidal awl shell make hydroecium shape and tube bank shape suit, further even heat exchange tube inner loop water velocity of flow guarantees condenser heat transfer performance. Meanwhile, compared with the water chamber in the prior art, the trapezoidal water chamber structure is compact in structure, the cost of raw materials can be reduced to a certain degree, and 5-10% of raw materials are saved.

Drawings

Fig. 1 is a front view of the overall structure of the present application.

Fig. 2 is a side view of the overall structure of the present application.

Fig. 3 is a top view of the overall structure of the present application.

Detailed Description

The first embodiment is as follows: the embodiment is described with reference to fig. 1 to fig. 3, and the trapezoidal water chamber for the large power station condenser comprises a trapezoidal conical shell 1, a top plate 2, a bottom plate 3, a circulating water connecting pipe 4 and a gas discharging pipe 6; the top and the bottom opening of trapezoidal awl shell 1, the top area of trapezoidal awl shell 1 is less than the bottom area, and roof 2 is installed on the top of trapezoidal awl shell 1, and bottom plate 3 is installed on the bottom of trapezoidal awl shell 1, and circulating water takeover 4 is installed on the bottom of bottom plate 3, and circulating water takeover 4 and bottom plate 3 intercommunication setting, and the vertical installation of gas release pipe 6 is on roof 2, and gas release pipe 6 and roof 2 intercommunication setting.

The enclosed area of the trapezoidal conical shell 1 is narrow at the top and wide at the bottom, so that the shape of the water chamber is adapted to the shape of the tube bundle, the flow rate of circulating water in the heat exchange tube is further uniform, and the heat exchange performance of the condenser is ensured. The conical shell structure can further improve the circulating water flow, reduce the internal resistance of the water chamber and increase the pressure bearing capacity. The enclosed area has no dead zone, and the rubber ball is effectively prevented from gathering. The air discharging pipe 6 is communicated with the top plate 2 to discharge air gathered at the top of the water chamber, so that the water chamber and the heat exchange pipe are filled with circulating water.

The second embodiment is as follows: the embodiment is described with reference to fig. 1 to fig. 3, and the trapezoidal water chamber for the condenser of the large power station in the embodiment includes a straight plate, an arc plate and a plurality of supporting tubes 5, wherein the arc plate is fastened and installed on the side surface of the straight plate, the supporting tubes 5 are uniformly installed on the inner side wall of the arc plate, and the diameter of the arc at the top of the arc plate is smaller than the diameter of the arc at the bottom of the arc plate. Other components and connection modes are the same as those of the first embodiment.

The third concrete implementation mode: referring to fig. 1 and 2, the trapezoidal water chamber for a condenser of a large power station according to the present embodiment is described, wherein the support pipes 5 are uniformly welded and installed on the arc-shaped plate. Other components and connection modes are the same as those of the first embodiment.

The fourth concrete implementation mode: the embodiment is described with reference to fig. 1 and fig. 2, in the trapezoidal water chamber for the condenser of the large power station, the supporting tube 5 arranged along the radial direction of the arc plate is attached to the inner wall of the arc plate, and the supporting tube 5 arranged along the axial direction of the arc plate is attached to the inner wall of the arc plate. Other components and connection modes are the same as those of the third embodiment.

The fifth concrete implementation mode: the embodiment is described with reference to fig. 1 and 2, and the trapezoidal water chamber for the large power station condenser in the embodiment is provided with a manhole at the top and the bottom of an arc-shaped plate respectively. Other components and connection modes are the same as those of the second embodiment.

The sixth specific implementation mode: the present embodiment will be described with reference to fig. 1 and 2, and a circulating water pipe 4 of the trapezoidal water chamber for a condenser of a large power station according to the present embodiment is disposed at the bottom end of a bottom plate 3. The hydroecium need not additionally to set up the outlet. Other components and connection modes are the same as those of the first embodiment.

Claims

1. The utility model provides a large-scale power station is trapezoidal hydroecium for condenser which characterized in that: the device comprises a trapezoidal conical shell (1), a top plate (2), a bottom plate (3), a circulating water connecting pipe (4) and an air discharging pipe (6); the top and the bottom opening of trapezoidal awl shell (1), the top area of trapezoidal awl shell (1) is less than the bottom area, install on the top of trapezoidal awl shell (1) roof (2), install on the bottom of trapezoidal awl shell (1) bottom plate (3), install on the bottom of bottom plate (3) circulating water takeover (4), and circulating water takeover (4) and bottom plate (3) intercommunication setting, gas release pipe (6) are vertical to be installed on roof (2), and gas release pipe (6) and roof (2) intercommunication setting.

2. The trapezoidal water chamber for the large power station condenser is characterized in that: trapezoidal awl shell (1) is installed on the inside wall of arc including straight board, arc and a plurality of stay tube (5), arc lock, a plurality of stay tubes (5) on the side of straight board, and the diameter of arc top circular arc is less than the diameter of arc bottom circular arc.

3. The trapezoidal water chamber for the large power station condenser is characterized in that: a plurality of supporting tubes (5) are uniformly distributed and welded on the arc-shaped plate.

4. The trapezoidal water chamber for the large power station condenser is characterized in that: the supporting tube (5) arranged along the radial direction of the arc-shaped plate is attached to the inner wall of the arc-shaped plate, and the supporting tube (5) arranged along the axial direction of the arc-shaped plate is attached to the inner wall of the arc-shaped plate.

5. The trapezoidal water chamber for the large power station condenser is characterized in that: the top and the bottom of the arc-shaped plate are respectively provided with a manhole.

6. The trapezoidal water chamber for the large power station condenser is characterized in that: the circulating water connecting pipe (4) is arranged at the bottom end of the bottom plate (3).