CN213948742U

CN213948742U - Serial multi-medium single-flow-type centralized cooling center

Info

Publication number: CN213948742U
Application number: CN202022730521.6U
Authority: CN
Inventors: 高怡秋; 张旭阳; 张鲲羽; 李一兴; 李少军
Original assignee: 704th Research Institute of CSIC
Current assignee: 704th Research Institute of CSIC
Priority date: 2020-11-23
Filing date: 2020-11-23
Publication date: 2021-08-13
Anticipated expiration: 2030-11-23

Abstract

The utility model relates to a serial multi-media single-flow-type centralized cooling center, which is provided with a U-shaped pipe thermal fluid heat exchange area connected with a cooling water inlet and a condensation area connected with a cooling water outlet, wherein the U-shaped pipe thermal fluid heat exchange area is positioned at the front side of the centralized cooling center, and the condensation area is positioned at the rear side of the centralized cooling center; the U-shaped pipe thermal fluid heat exchange area is connected with the condensation zone in series to form a serial structure cooled by the same cooling water medium and used for simultaneously completing heat exchange of two working media, wherein the U-shaped pipe thermal fluid heat exchange area on the front side is used for cooling the liquid medium, and the condensation area on the rear side is used for cooling exhaust steam. The two heat exchange devices are integrated, so that the complexity of the ship heat exchange device can be reduced, the installation space and the maintenance space required by the heat exchange devices are reduced, and the space occupied by peripheral pipelines is reduced; the equipment quantity is reduced, and the overall reliability of the ship heat exchange device is improved.

Description

Serial multi-medium single-flow-type centralized cooling center

Technical Field

The utility model relates to a be applicable to boats and ships power device and on-board power station system, especially a multimedium single-flow form centralized cooling center.

Background

With the development of the ship industry, the complexity and the power grade of various systems such as a ship electric power system, a power propulsion system, a lubricating oil circulating system and the like are increased, and the requirement of the ship on a heat exchange device is continuously increased. In conventional arrangements, each medium is cooled by separate heat exchange equipment. For example, the conditioning oil is cooled by an oil cooler, the working medium water is cooled by a water cooler, and the condenser is cooled by a condenser. Under the condition that the ship cabin areas are the same, the adoption of various heat exchange devices can occupy a large amount of cabin space, so that the arrangement and the arrangement of cabin equipment are difficult greatly. The increase in the number of devices will also cause major difficulties in the on-board maintenance of the relevant devices. For ships with higher requirements on miniaturization and integration, the traditional discrete heat exchange equipment design can not meet the heat exchange requirements increased day by day.

In summary, there is a need for a serial multi-medium single-flow centralized cooling center that can cool both the exhaust steam and the conditioned oil or the working fluid. The adoption of the equipment can greatly improve the miniaturization and integration degree of the heat exchange equipment, reduce the design complexity of the heat exchange equipment, reduce the complexity of peripheral pipeline arrangement and fully utilize the internal space of the cabin.

At present, no series multi-medium single-flow centralized cooling center exists at home and abroad.

Disclosure of Invention

The utility model aims to solve the problem that a cooling center is concentrated to serial-type many medium single flow is proposed for the cooling center of the exhaust steam and a liquid working medium (like fresh water and lubricating oil) of cooling turbo generator set simultaneously. The adoption of the centralized cooling center can greatly improve the miniaturization rate and the integration rate of the heat exchange device and reduce the volume of the heat exchange device and the complexity of a pipeline system.

In order to achieve the above purpose, the technical scheme of the utility model is that: a serial multi-medium single-flow-type centralized cooling center is provided with a U-shaped pipe thermal fluid heat exchange area connected with a cooling water inlet and a condensation area connected with a cooling water outlet, wherein the U-shaped pipe thermal fluid heat exchange area is positioned on the front side of the centralized cooling center, and the condensation area is positioned on the rear side of the centralized cooling center; the U-shaped pipe thermal fluid heat exchange area is connected with the condensation zone in series to form a serial structure cooled by the same cooling water medium and used for simultaneously completing heat exchange of two working media, wherein the U-shaped pipe thermal fluid heat exchange area on the front side is used for cooling the liquid medium, and the condensation area on the rear side is used for cooling exhaust steam.

Further, the liquid medium in the heat exchange area of the U-shaped pipe hot fluid is regulating oil or fresh water.

Further, the U-shaped pipe thermal fluid heat exchange area comprises a front end cover shell and a U-shaped pipe, the U-shaped pipe is fixedly connected in the front end cover shell through a U-shaped pipe supporting plate, and a thermal fluid outlet pipe and a thermal fluid inlet pipe are arranged on the U-shaped pipe.

Furthermore, the middle of the U-shaped pipe is provided with a middle partition plate connected with the U-shaped pipe supporting plate, the middle partition plate divides the U-shaped pipe hot fluid heat exchange area into an inlet cavity and an outlet cavity, the inlet cavity and the outlet cavity are connected through the U-shaped pipe, and hot fluid in the inlet cavity can flow to the outlet cavity through the U-shaped pipe.

Furthermore, the condensation area comprises a condensation area shell, a condensation pipe and a rear end cover, the right side of the condensation area shell is fixedly connected with the rear end cover through a rear tube plate, a pressure expansion cavity is arranged at the upper part of the condensation area shell, an exhaust steam inlet is formed in the upper end of the pressure expansion cavity, the lower part of the pressure expansion cavity is connected with a water condensation tank, a condensed water outlet is formed in the lower end of the water condensation tank, and the condensation area shell is fixedly connected with the condensation pipe through a condensation pipe supporting plate.

Furthermore, the left side of the condensation area shell is fixedly connected with the front end cover shell through a front tube plate.

The utility model has the advantages that:

the utility model discloses a serial-type multimedium single flow centralized cooling center replaces original discrete formula heat transfer device to have following advantage:

1. the concentrated cooling center integrates the two heat exchange devices, so that the complexity of the heat exchange device of the ship can be reduced, the installation space and the maintenance space required by the heat exchange devices are reduced, and the space occupied by peripheral pipelines is reduced;

2. the equipment quantity is reduced, and the overall reliability of the ship heat exchange device is improved. The use of the centralized cooling center reduces the number and the types of heat exchange equipment, so that the overall reliability, maintainability, supportability, safety and the like of the ship heat exchange device are obviously improved. If a plurality of parallel-type centralized cooling centers are adopted on a single ship. Under the condition that a single device fails, the rest cooling centers can also ensure that the whole system can keep normal operation to a low limit without completely losing the cooling function of a certain type of working medium;

3. the cooling device is beneficial to improving the miniaturization, the light weight and the integration of the cooling device, and provides more scheme options for the design and the configuration of the cabin of the ship.

Drawings

Fig. 1 is a schematic structural view of a tandem type multi-medium single-flow-type centralized cooling center according to the present invention.

Detailed Description

The present invention will be further explained with reference to the accompanying drawings and examples.

As shown in figure 1, the serial multi-medium single-flow centralized cooling center of the utility model adopts a serial structure, and concentrates two cooling part sleeves and adopts the technical scheme of cooling by the same cooling water medium. Wherein: the U-shaped pipe thermal fluid heat exchange area is positioned on the front side of the centralized cooling center, and the condensation area is positioned on the rear side of the centralized cooling center. The U-shaped pipe hot fluid heat exchange area is used for exchanging heat of liquid working media such as adjusting oil and fresh water. The condensing zone is used for carrying out heat exchange of condensed gas.

The serial multi-medium single-flow centralized cooling center can simultaneously complete heat exchange of two working mediums, wherein the U-shaped pipe area on the front side can be used for cooling liquid medium, and the condenser area on the rear side can be used for cooling dead steam.

In the examples: the cooling center comprises a front end cover shell 1, a hot fluid outlet pipe 2, a middle partition plate 3, a U-shaped pipe supporting plate 4, a U-shaped pipe 5, a hot fluid inlet pipe 6, a front pipe plate 7, a condensation zone shell 8, a diffusion chamber 9, a condensation pipe 10, a condensation pipe supporting plate 11, a rear pipe plate 12, a rear end cover 13, a water condensation tank 14 and a condensed water outlet 15. The left side of a condensation zone shell 8 is fixedly connected with a front end cover shell 1 through a front tube plate 7, the right side of the condensation zone shell is fixedly connected with a rear end cover 13 through a rear tube plate 12, a diffusion cavity 9 is arranged at the upper part of the condensation zone shell 8, an exhaust steam inlet is arranged at the upper end of the diffusion cavity 9, the lower part of the diffusion cavity is connected with a water condensing tank 14, a condensed water outlet 15 is arranged at the lower end of the water condensing tank 14, and a condensing tube 10 is fixedly connected in the condensation zone shell 8 through a condensing tube supporting plate 11; the front end cover shell 1 is internally and fixedly connected with a U-shaped pipe 5 through a U-shaped pipe supporting plate 4, the middle of the U-shaped pipe 5 is provided with a middle partition plate 3 connected with the U-shaped pipe supporting plate 4, and the U-shaped pipe 5 is provided with a hot fluid outlet pipe 2 and a hot fluid inlet pipe 6.

Cooling water enters the front end cover shell from the leftmost cooling water inlet. Flows through the U-shaped pipe heat exchange area, the cooling water is positioned on the shell 8 side of the condensation area, and the hot fluid is positioned on the U-shaped pipe 5 side. After exchanging heat with the hot fluid in the U-shaped pipe 5, the hot fluid enters the shell 8 of the condensation area through the front pipe plate 7. The cooling water is now on the condensation zone shell 8 side and the exhaust steam is on the condensation zone shell 8 side. After sufficient heat exchange with the exhaust gas in the condensation zone shell 8, the exhaust gas flows out of the rear tube plate 12 into the rear end cover 13 and finally flows out of the cooling water outlet.

In the U-shaped heat exchange area, hot fluid passes through a hot fluid inlet to form a liquid storage cavity, and the liquid storage cavity is divided into an inlet cavity and an outlet cavity by a partition plate. The inlet chamber and the outlet chamber are connected by a U-shaped pipe. The hot fluid in the inlet chamber can flow to the outlet chamber through the U-tube. The U-shaped pipe is fixed and connected by a support plate.

The condensing gas enters a condensing gas cooling area from an exhaust steam inlet on the upper part, a condensing pipe in the condensing gas cooling area is fixed by a support plate to prevent the vibration and the structural damage of a pipe bundle caused by the impact of the exhaust steam, the exhaust steam is converted into condensing water after being condensed in the condenser area, and the condensing water enters a condensing water tank and flows out through a condensing water outlet to concentrate a cooling center.

The design idea difference between the serial multi-medium single-flow centralized cooling center and a conventional condenser is mainly embodied in the adoption of a serial structure.

Firstly, tubes are connected between the condenser tubes and the supporting plate in series, the supporting plate is fixed by distance tubes, and then the condenser tubes are escaped into the assembled condensation zone shell, so that the heat expansion installation of the tube plates is completed. And a front end cover shell and a rear end cover assembly are respectively arranged on the front tube plate and the rear tube plate. And then, installing the U-shaped pipe heat exchanger, and assembling the U-shaped pipe, the inlet and outlet chamber and the U-shaped pipe supporting plate. Wherein the U-shaped pipe and the inlet and outlet chamber are connected in an expansion mode. The U-shaped pipe cooling assembly is integrally placed in a reserved opening position of the front end cover shell and fixed through bolts, and then the installation of the serial multi-medium single-flow centralized cooling center can be completed.

Claims

1. A serial multi-medium single-flow-type centralized cooling center is provided with a U-shaped pipe thermal fluid heat exchange area connected with a cooling water inlet and a condensation area connected with a cooling water outlet, and is characterized in that: the U-shaped pipe thermal fluid heat exchange area is positioned on the front side of the centralized cooling center, and the condensation area is positioned on the rear side of the centralized cooling center; the U-shaped pipe thermal fluid heat exchange area is connected with the condensation zone in series to form a serial structure cooled by the same cooling water medium and used for simultaneously completing heat exchange of two working media, wherein the U-shaped pipe thermal fluid heat exchange area on the front side is used for cooling the liquid medium, and the condensation area on the rear side is used for cooling exhaust steam.

2. The tandem multi-media, single-flow, concentrated cooling center of claim 1, wherein: and the liquid medium in the heat exchange area of the U-shaped pipe hot fluid is regulating oil or fresh water.

3. The tandem multi-media, single-flow, concentrated cooling center of claim 1, wherein: the U-shaped pipe thermal fluid heat exchange area comprises a front end cover shell and a U-shaped pipe, the U-shaped pipe is fixedly connected in the front end cover shell through a U-shaped pipe supporting plate, and a thermal fluid outlet pipe and a thermal fluid inlet pipe are arranged on the U-shaped pipe.

4. The tandem multi-media, single-flow, concentrated cooling center of claim 3, wherein: the U-shaped pipe heat exchange device is characterized in that an intermediate partition plate connected with a U-shaped pipe supporting plate is arranged in the middle of the U-shaped pipe, the intermediate partition plate divides a U-shaped pipe hot fluid heat exchange area into an inlet chamber and an outlet chamber, the inlet chamber and the outlet chamber are connected through the U-shaped pipe, and hot fluid in the inlet chamber can flow to the outlet chamber through the U-shaped pipe.

5. The tandem multi-media, single-flow, concentrated cooling center of claim 1, wherein: the condensing zone comprises a condensing zone shell, a condensing tube and a rear end cover, the right side of the condensing zone shell is fixedly connected with the rear end cover through a rear tube plate, a pressure expansion cavity is arranged at the upper part of the condensing zone shell, an exhaust steam inlet is arranged at the upper end of the pressure expansion cavity, the lower part of the pressure expansion cavity is connected with a water condensing tank, a condensed water outlet is arranged at the lower end of the water condensing tank, and the condensing tube is fixedly connected with the condensing zone shell through a condensing tube supporting plate.

6. The tandem multi-media, single-flow, concentrated cooling center of claim 1, wherein: the left side of the condensation zone shell is fixedly connected with the front end cover shell through a front tube plate.