CN217275054U

CN217275054U - Low-noise split type cooling unit

Info

Publication number: CN217275054U
Application number: CN202123275701.0U
Authority: CN
Inventors: 张德旭; 石玉颖; 季婷; 韩健; 叶婷; 钱文平
Original assignee: Zhongtian Jiangsu Defense Equipment Co ltd
Current assignee: Zhongtian Jiangsu Defense Equipment Co ltd
Priority date: 2021-12-24
Filing date: 2021-12-24
Publication date: 2022-08-23
Anticipated expiration: 2031-12-24

Abstract

The utility model relates to a refrigeration field provides the split type cooling unit of low noise. By supplying liquid unit, radiating element and three independent units of collection liquid unit to constitute, supply the liquid unit through the pipeline to the radiating element provide high temperature cooling water, radiating element through the pipeline to collect the liquid unit and provide cold low-temperature cooling water, collect the liquid unit through the pipeline to provide multichannel low-temperature cooling water to the load to high temperature cooling water after will loading the heat transfer returns liquid to supplying the liquid unit through the pipeline, supply liquid unit and radiating element to install in outdoor, collect the liquid unit and install in indoor, set up the heat transfer board in collecting the liquid unit, through the mode of cooling water and circulating oil heat transfer, carry out the secondary heat transfer by circulating oil and complicated transformer, reach multiunit cooling mode cooling demand. The technical scheme can respectively meet the requirement of cooling loads with different powers and cooling media, and has wide application range.

Description

Low-noise split type cooling unit

Technical Field

The utility model relates to a refrigeration field, concretely relates to split type cooling unit of low noise.

Background

During operation of large devices such as radars, a large amount of heat is generated due to consumption of electric energy, and the heat causes the load temperature of the devices to increase. There are often many electronic components within the load, and an increase in temperature can have an effect on the life of the electronic components, even directly causing the equipment to stop operating.

In the prior art, a heat exchanger is usually installed at a heat-generating load, and heat at the load is taken out by supplying cooling water to the heat exchanger. Large plants are often loaded with multiple loads, which requires multiple cooling water supplies from the chiller plant. For special equipment, part of load needs to be cooled by oil, and the conventional water chilling unit cannot meet the requirement of heat exchange.

The water chilling unit at least comprises an air condenser, and a part of the water chilling unit uses a compressor for refrigeration. The compressor and the fan of a high-power cooling unit have large noise and vibration in the working process, and the operating environment of equipment can be influenced.

Disclosure of Invention

In order to satisfy the multichannel of main equipment and the demand of multimode cooling heat transfer, reduce the noise of unit, the utility model aims to provide a split type cooling unit of low noise.

The utility model adopts the technical proposal that:

the low-noise split cooling unit consists of a liquid supply unit, a heat dissipation unit and a liquid collection unit which are independent units, wherein the liquid supply unit supplies high-temperature cooling water to the heat dissipation unit through a pipeline, the heat dissipation unit supplies cold low-temperature cooling water to the liquid collection unit through a pipeline, the liquid collection unit supplies multi-path low-temperature cooling water to a load through a pipeline, the high-temperature cooling water after heat exchange of the load is returned to the liquid supply unit through a pipeline, the liquid supply unit and the heat dissipation unit are installed outdoors, and the liquid collection unit is installed indoors; the liquid supply unit comprises a liquid supply tank body, a water tank, a liquid supply pump and a control cabinet are arranged in the liquid supply tank body, the water tank and the control cabinet are arranged at the upper part of the liquid supply tank body, the liquid supply pump is arranged at the lower part in the liquid supply tank body, and the liquid supply pump is connected with the bottom of the water tank; the heat dissipation unit comprises a heat dissipation box body and four air-cooled condensers, the four air-cooled condensers are arranged in the heat dissipation box body in parallel, and fans of the air-cooled condensers are positioned on the same side of the box body; the liquid collecting unit comprises a liquid collecting box body, a liquid collecting main pipe, a liquid return main pipe, a plate heat exchanger and an oil pump, wherein the liquid collecting main pipe and the liquid return main pipe are supported in the middle of the liquid collecting box body by a support; each liquid collecting branch pipe and each liquid returning branch pipe are respectively connected with the liquid supply ends and the liquid returning ends of the plurality of load heat exchangers; the oil pump is arranged at the bottom in the liquid collecting box body, the plate type heat exchanger is arranged on the side wall in the liquid collecting box, and two ends of a cooling water channel of the plate type heat exchanger are correspondingly connected with a liquid collecting branch pipe and a liquid return branch pipe; a heat exchange channel of the plate heat exchanger is connected in series with a transformer cooling circulation oil way of a load through an oil pump; the liquid collecting main pipe is connected with a cooling water channel of the heat dissipation unit; the liquid return main pipe is connected with a water tank of the liquid supply unit.

Furthermore, a temperature sensor, a pressure sensor and a flow sensor are arranged on the liquid collecting main pipe; a temperature sensor is arranged on the liquid return main pipe; and valves and flow sensors are respectively arranged on the liquid collecting branch pipe and the liquid returning branch pipe.

Furthermore, a balance branch is arranged between the liquid collecting main pipe and the liquid returning main pipe, and a valve is connected in series to the balance branch.

Further, install oil drying filter in the collection liquid box, oil drying filter concatenates and installs between oil pump and plate heat exchanger.

And the water tank is connected with a liquid supplementing branch, and the liquid supplementing branch is connected with a liquid supplementing pump and a liquid supplementing valve in series.

After taking above technical scheme, the beneficial effects of the utility model are that:

1. the split design is adopted, the heat dissipation unit generating noise and the liquid supply unit are placed outdoors, heat dissipation and noise and vibration isolation are facilitated, and the comfort of the operation environment is improved;

2. through the setting of collecting main pipe and returning the liquid and being responsible for, can supply the coolant liquid simultaneously to a plurality of different loads through a plurality of spinal branchs pipe, can satisfy different heat transfer demands through the control flow according to the difference of the calorific capacity of load.

3. The heat exchange plates are arranged in the liquid collection unit, secondary heat exchange is carried out on the circulating oil and the complex transformer through a cooling water and circulating oil heat exchange mode, and the cooling requirements of multiple groups of cooling modes are met.

4. The modular design of the units is adopted, and the units are connected through pipelines, so that the installation and the maintenance are convenient, and the operation is convenient.

The technical scheme can respectively meet the requirement of cooling loads with different powers and cooling media, and has wide application range.

Drawings

FIG. 1 is a schematic view of a liquid supply unit;

FIG. 2 is a schematic structural diagram of a heat dissipation unit;

FIG. 3 is a schematic view of the sump unit;

fig. 4 is a schematic diagram of the present embodiment.

Detailed Description

The following detailed description of the embodiments of the present invention is made with reference to the accompanying drawings:

the low-noise split cooling unit consists of a liquid supply unit 1, a heat dissipation unit 2 and a liquid collection unit 3. All units are independent boxes and are connected through pipelines. The liquid supply unit 1 and the heat dissipation unit 2 are installed outdoors, and the liquid collection unit 3 is installed indoors.

As shown in fig. 1, the liquid supply unit 1 comprises a liquid supply tank 11, a water tank 12, a liquid supply pump 13, a control cabinet 14, and the like, which are installed in the liquid supply tank 11. The bottom of the liquid supply tank body 11 is connected with a liquid supplementing branch 15, a liquid supplementing pump 16 and a valve 17 are installed on the liquid supplementing branch, a liquid level switch is installed in the water tank 12, and when the liquid level in the water tank 12 is low, water is supplemented by the liquid supplementing branch 15. The water tank 12 and the control cabinet are arranged on the upper part of the liquid supply tank body 11, the liquid supply pump 13 is arranged on the lower part in the liquid supply tank body 11, the liquid supply pump 13 is connected with the bottom of the water tank 12, and cooling liquid is extracted from the water tank 11 and sent to the heat dissipation unit 2.

As shown in fig. 2, the heat radiating unit 2 is composed of a heat radiating case 21 and four air-cooled condensers 22. The four air-cooled condensers 22 are fixedly arranged in the radiating box body in an upper row and a lower row, and fans of the air-cooled condensers 22 are positioned on the same side of the box body; the inlet ends of the cooling water channels of the four air-cooled condensers 22 are connected in parallel and then are connected with the liquid supply pump 12 through pipelines, and the pipelines are provided with filters 23 to avoid water stains from blocking the air-cooled condensers. The outlet ends of the cooling water channels of the four air-cooled condensers 22 are connected in parallel and then are connected with the liquid collecting unit 3 through a pipeline. The wind resistance, the wind speed and the wind pressure of the heat exchange unit are reasonably controlled, the running noise is reduced, and meanwhile, a damping silencing device is arranged at the position with high wind outlet noise.

As shown in fig. 3, the liquid collecting unit 3 includes a liquid collecting tank 31, a liquid collecting main pipe 32, a liquid returning main pipe 33, a plate heat exchanger 34, and an oil pump 35, the liquid collecting main pipe 32 and the liquid returning main pipe 33 are supported by a bracket 36 in the middle of the liquid collecting tank 31, and the plate heat exchanger 34 is mounted on the bracket 36 and is adjacent to a side wall of the liquid collecting tank 31. The liquid collecting main pipe 32 is connected with the outlet end of the cooling water channel of the heat radiating unit 2, and the liquid returning main pipe 33 is connected with the water tank 12 of the liquid supply unit 1. A balance branch 30 is arranged between the liquid collecting main pipe 32 and the liquid returning main pipe 33, and a valve is arranged on the branch for balancing the pressure of liquid supply and liquid returning and storing the cooling water in the water tank 12 when the load stops running. The liquid collecting main pipe 32 is connected with a plurality of liquid collecting branch pipes 37 distributed along the length direction of the liquid collecting main pipe, and the liquid returning main pipe 33 is connected with a plurality of liquid returning branch pipes 38 distributed along the length direction of the liquid returning main pipe; each liquid collecting branch pipe 37 and each liquid return branch pipe 38 are respectively connected with a liquid supply end and a liquid return end of the load heat exchangers; two ends of a cooling water channel of the plate heat exchanger 34 are correspondingly connected with a liquid collecting branch pipe and a liquid returning branch pipe, and circulating cooling oil is circulated in the other heat exchange channel of the plate heat exchanger 34 through an oil pump 35 and a pipeline and is connected with a loaded transformer cooling circulation oil circuit in series to form circulation. The cooling oil exchanges heat with cooling water in the plate heat exchanger 34 and enters the transformer after being cooled, and secondary heat exchange is carried out in the transformer. The oil pump 35 is arranged at the bottom in the liquid collection box body 31, and an oil drying filter 39 is arranged between the oil pump 35 and the plate type heat exchanger 34, so that the heat exchange effect of the circulating oil is ensured.

As shown in fig. 4, the liquid supply unit 1 supplies high-temperature cooling water to the heat dissipation unit 2 through a pipeline, the heat dissipation unit 2 supplies cold low-temperature cooling water to the liquid collection unit 3 through a pipeline, the liquid collection unit 3 supplies multiple paths of low-temperature cooling water to the load through a pipeline, and the high-temperature cooling water after heat exchange of the load is returned to the liquid supply unit 1 through a pipeline.

The control cabinet 14 is used for controlling the operation of the unit. The control principle of conventional refrigeration is adopted, and details are not repeated in the technical scheme. The liquid collecting main pipe is provided with a temperature sensor, a pressure sensor and a flow sensor, the liquid returning main pipe is provided with a temperature sensor, and each liquid collecting branch pipe and the liquid returning branch pipe are respectively provided with a valve and a flow sensor. The control cabinet collects data of each sensor and controls elements such as a liquid supply pump, an air-cooled condenser, an oil pump and a valve so as to meet set requirements.

Claims

1. The low-noise split cooling unit is characterized in that the liquid supply unit and the heat dissipation unit are arranged outdoors, and the liquid collection unit is arranged indoors; the liquid supply unit comprises a liquid supply tank body, a water tank, a liquid supply pump and a control cabinet are arranged in the liquid supply tank body, the water tank and the control cabinet are arranged at the upper part of the liquid supply tank body, the liquid supply pump is arranged at the lower part in the liquid supply tank body, and the liquid supply pump is connected with the bottom of the water tank; the heat dissipation unit comprises a heat dissipation box body and four air-cooled condensers, the four air-cooled condensers are arranged in the heat dissipation box body in parallel, and fans of the air-cooled condensers are positioned on the same side of the box body; the liquid collecting unit comprises a liquid collecting box body, a liquid collecting main pipe, a liquid return main pipe, a plate heat exchanger and an oil pump, wherein the liquid collecting main pipe and the liquid return main pipe are supported in the middle of the liquid collecting box body by a support, the liquid collecting main pipe is connected with a plurality of liquid collecting branch pipes along the length direction of the liquid collecting main pipe, and the liquid return main pipe is connected with a plurality of liquid return branch pipes along the length direction of the liquid return main pipe; each liquid collecting branch pipe and each liquid returning branch pipe are respectively connected with the liquid supply ends and the liquid returning ends of the plurality of load heat exchangers; the oil pump is arranged at the bottom in the liquid collecting box body, the plate type heat exchanger is arranged on the side wall in the liquid collecting box, and two ends of a cooling water channel of the plate type heat exchanger are correspondingly connected with a liquid collecting branch pipe and a liquid return branch pipe; a heat exchange channel of the plate heat exchanger is connected in series with a transformer cooling circulation oil path of a load through an oil pump; the liquid collecting main pipe is connected with a cooling water channel of the heat dissipation unit; the liquid return main pipe is connected with a water tank of the liquid supply unit.

2. The low-noise split cooling unit according to claim 1, wherein a temperature sensor, a pressure sensor and a flow sensor are mounted on the liquid collecting header pipe; a temperature sensor is arranged on the liquid return main pipe; and valves and flow sensors are respectively arranged on the liquid collecting branch pipe and the liquid returning branch pipe.

3. The low-noise split cooling unit according to claim 1, wherein a balance branch is installed between the liquid collecting main pipe and the liquid returning main pipe, and a valve is connected in series to the balance branch.

4. The split-type low-noise cooling unit according to claim 1, wherein an oil drying filter is installed in the liquid collection tank, and the oil drying filter is installed between the oil pump and the plate heat exchanger in series.

5. The low-noise split cooling unit according to claim 1, wherein a fluid supplementing branch is connected to the water tank, and a fluid supplementing pump and a fluid supplementing valve are connected in series to the fluid supplementing branch.