CN-121994041-A - Induced air type air-cooling condenser

Abstract

The induced air type air cooling condenser belongs to the technical field related to heat transfer devices and comprises a heat exchanger, a collecting header, an air cooling device and a fan supporting platform, wherein the heat exchanger comprises a single-row tube bundle composed of condensation tubes, a steam distribution pipeline arranged above the single-row tube bundle, the collecting header is arranged below the single-row tube bundle, the air cooling device comprises a fan supporting platform and a fan arranged on the fan supporting platform, the fan supporting platform is arranged above the steam distribution pipeline, and the fan supporting platform, the steam distribution pipeline and the heat exchanger are connected to form a self-supporting structure capable of supporting the fan. Install the fan in the top of single calandria tube bank, adopt the built on stilts, induced air refrigerated structural style of fan, can install the fan through air cooling condenser self structures such as single calandria tube bank, can reduce the influence degree of environmental wind to condenser unit operation. The invention reduces the operation energy consumption of the condenser unit and also reduces the construction cost of the condenser unit.

Inventors

• LI HUILI

Assignees

• 首航高科能源技术股份有限公司

Dates

Publication Date

20260508

Application Date

20260303

Claims (10)

1. 1. An induced air type air cooling condenser, which is characterized by comprising: the heat exchanger comprises a single-row tube bundle (2) consisting of condensation tubes (1); A steam distribution pipeline (3) arranged above the single-row pipe bundle, and connected with the single-row pipe bundle and used for distributing and conveying steam; A collecting header (4) arranged below the single-row tube bundle, connected with each condensing tube, used for converging and gathering condensed liquid and outputting; The air cooling device comprises a fan supporting platform (5) and a fan (6) arranged on the fan supporting platform, and the fan supporting platform is arranged above the steam distribution pipeline; The fan support platform, the steam distribution pipeline and the heat exchanger are connected to form a self-supporting structure capable of supporting the fan.
2. 2. The induced air type air-cooled condenser according to claim 1, wherein, The single-row tube bundle consists of a plurality of condensing tubes arranged in the same plane, wherein each condensing tube can independently condense steam.
3. 3. The induced air type air-cooled condenser according to claim 2, wherein, In the same single-row tube bundle, all the condensation tubes positioned in the same plane are arranged adjacently in parallel; or, in the same single-row tube bundle, all the condensation tubes positioned in the same plane are arranged in parallel and at intervals; or, in the same single-row tube bundle, all the condensation tubes positioned in the same plane are obliquely arranged towards the same direction; Or in the same single-row tube bundle, all the condensation tubes positioned in the same plane are obliquely arranged, and the inclination angles of two adjacent condensation tubes are the same but the inclination directions are opposite.
4. 4. The induced air type air-cooled condenser according to claim 3, wherein, Constructing a three-dimensional coordinate system consisting of a transverse axis X, a longitudinal axis Y and a vertical axis Z; The bottom ends of the single-row tube bundles are positioned in an X-Y plane, the condensation tubes forming the single-row tube bundles are inclined relative to the vertical axis Z along the direction of the longitudinal axis Y, and the single-row tube bundles are inclined relative to the vertical axis Z along the direction of the transverse axis X.
5. 5. The induced air type air-cooled condenser according to claim 4, wherein, The heat exchanger comprises a plurality of single-row tube bundles, wherein two single-row tube bundles are used as a unit, and the bottom ends of the two single-row tube bundles in the same unit are adjacent, and the top ends of the two single-row tube bundles are separated to form a V-shaped structure; the unit formed by the single row tube bundle is provided in plurality and forms a multi-V-shaped structure.
6. 6. The induced air type air-cooled condenser according to claim 1, wherein, The fan support platform is in sliding connection with the steam distribution pipelines at two sides of the heat exchanger, and is fixedly connected with the steam distribution pipelines at other parts of the heat exchanger; Or, fan supporting platform is provided with a plurality ofly, fan supporting platform sets up along the perpendicular steam distribution pipeline's direction, fan supporting platform's both sides and steam distribution pipeline sliding connection, fan supporting platform's middle part and steam distribution pipeline fixed connection.
7. 7. The induced air type air-cooled condenser according to claim 6, wherein, When the fan supporting platform is provided with a plurality of, two adjacent fan supporting platforms are arranged at intervals.
8. 8. The induced air type air-cooled condenser according to claim 1, wherein, The device also comprises a countercurrent pipeline (7) which is arranged between the collecting header and the steam distribution pipeline and is used for reflux of uncondensed steam.
9. 9. The induced air type air-cooled condenser according to claim 1, wherein, The collecting header further comprises a bottom supporting structure (8), wherein the bottom of the collecting header is provided with supporting legs (9), and the single-row tube bundles are arranged on the bottom supporting structure through the supporting legs; And a structural member (10) is designed between the lower part of the steam distribution pipeline and the bottom supporting structure, the upper part of the structural member is fixedly connected with the lower part of the steam distribution pipeline, and the lower part of the structural member is in sliding connection with the bottom supporting structure.
10. 10. The induced air type air-cooled condenser according to claim 9, wherein, The connecting piece (11) is arranged between the structural part and the supporting leg and is used for realizing the fixed connection between the structural part and the supporting leg.

Description

Induced air type air-cooling condenser Technical Field The invention belongs to the technical field related to heat transfer devices, and particularly relates to an induced air type air-cooling condenser which can be applied to the fields of thermal power plants, nuclear power plants, metallurgy, chemical industry and the like. Background A condenser (also referred to as a condenser) is a heat transfer device (a steam treatment device) for condensing steam. The condenser comprises an air-cooled condenser, the air-cooled condenser utilizes air (low temperature) to cool steam (high temperature), the condenser comprises a heat exchanger, and the heat exchanger generally comprises a plurality of parallel arranged finned tubes forming a tube bundle structure. The "tubes" making up the tube bundle structure are in contact with ambient air (ambient air surrounding the tubes) for heat exchange, and as the steam passes through the "tubes", the steam releases heat and eventually condenses. A typical air-cooled condenser tube bundle structure is formed by constructing two tube bundles into a group, wherein the two tube bundles in the same group are constructed together in an inverted V-shaped mode, and meanwhile, each tube forming the tube bundle structure is inclined relative to the horizontal plane. When condensate forms in the tube, the condensate may flow by gravity to the lower end portion of the tube and collect. The air-cooled condenser includes one or more steam distribution pipes through which steam discharged from the steam turbine is distributed into the respective tube bundles. In order to ensure the condensation effect, the air-cooled condenser is also provided with an electric fan, the electric fan is arranged below the two tube bundle structures of the same group, and air for cooling is provided by adopting a forced ventilation mode. Meanwhile, in order to obtain sufficient air, the electric fan and its upper structure are required to be elevated (located at a position at a certain height above the ground). This requires a support structure below the air-cooled condenser to support the air-cooled condenser. In addition, wind shielding walls are arranged around the air-cooled condenser to reduce the influence of hot air backflow after the air-cooled condenser releases heat. According to structural analysis of the air-cooled condenser in the prior art, an electric fan is arranged below the tube bundle structure, air flow is accelerated to cool the tube bundle structure in a blowing mode, the air-cooled condenser unit is greatly influenced by environmental wind in the operation process, the unit power consumption is high, more supporting structures are required to be arranged, and the construction cost of the air-cooled condenser is high. Disclosure of Invention First technical problem In summary, how to solve the problems of high operation energy consumption, high construction cost and the like of the traditional air-cooled condenser in the prior art becomes a problem to be solved urgently by those skilled in the art. (II) technical scheme The invention aims to provide an induced air type air-cooled condenser which is used for reducing the influence degree of environmental wind on the operation of a condenser unit, reducing the operation energy consumption of the condenser unit and reducing the construction cost of the condenser unit. In order to achieve the above object, the present invention provides the following technical solutions: The invention provides an induced air type air-cooled condenser, which comprises: a heat exchanger comprising a single row tube bundle comprised of condenser tubes; The steam distribution pipeline is arranged above the single-row pipe bundle and connected with the single-row pipe bundle for distributing and conveying steam; The collecting header is arranged below the single-row tube bundle, is connected with each condensing tube and is used for converging and gathering condensed liquid and outputting the condensed liquid; The air cooling device comprises a fan supporting platform and a fan arranged on the fan supporting platform, and the fan supporting platform is arranged above the steam distribution pipeline; The fan support platform, the steam distribution pipeline and the heat exchanger are connected to form a self-supporting structure capable of supporting the fan. Preferably, in the induced air type air-cooled condenser provided by the invention, the single-row tube bundle is composed of a plurality of condensing tubes arranged in the same plane, wherein each condensing tube can independently condense steam. Preferably, in the induced air type air-cooled condenser provided by the invention, all the condensation pipes located in the same plane are arranged in parallel and adjacently in the same single-row pipe bundle. Preferably, in the induced air type air-cooled condenser provided by the invention, all the condensation pipes located in the same plane are arranged in