CN220287722U

CN220287722U - Integrated closed cooling equipment

Info

Publication number: CN220287722U
Application number: CN202321361961.6U
Authority: CN
Inventors: 石纪赞; 吴祖鹏; 沈祖兰
Original assignee: Shenzhen Bojian Technology Co ltd
Current assignee: Shenzhen Bojian Technology Co ltd
Priority date: 2023-05-31
Filing date: 2023-05-31
Publication date: 2024-01-02
Anticipated expiration: 2033-05-31

Abstract

The utility model relates to integrated closed cooling equipment, which comprises a frame, a plurality of trapezoid indirect evaporative cooling units, a shell-tube condenser, a shell-tube evaporator, a compressor, a fluorine pump, a precooling pump, a cooling pump, an expansion valve, an electric valve, a pipeline system and a controller, wherein the trapezoid indirect evaporative cooling units are fixedly arranged on the frame, the trapezoid indirect evaporative cooling units are uniformly arranged on the frame at intervals and are fixedly connected with the frame, the shell-tube evaporator is positioned between two adjacent trapezoid indirect evaporative cooling units, the compressor is positioned in the upper space of the shell-tube evaporator, the shell-tube condenser is positioned at the outer side of the trapezoid indirect evaporative cooling units in the air inlet direction, the precooling pump, the cooling pump, the fluorine pump and the electric valve are positioned at two sides of the sealing side of the trapezoid indirect evaporative cooling units, and the controller is electrically connected with the compressor, the fluorine pump, the precooling pump, the cooling pump and the electric valve. The area utilization rate of the customer site is improved, the site hoisting construction is reduced, the cost is reduced, and the transportation and the hoisting are convenient.

Description

Integrated closed cooling equipment

Technical Field

The utility model relates to the technical field of refrigeration, in particular to an integrated closed cooling device.

Background

Over decades, central air conditioning water systems have evolved, and technology has tended to mature. The air conditioning system is convenient to use, simple to operate and high in reliability, and is widely applied to large-scale data centers and commercial buildings. At present, a traditional scheme of providing cold water for an end air conditioner by a data center water system generally adopts a combined scheme of a cooling tower, a water chilling unit and a water pump, wherein the cooling tower, the water chilling unit and the water pump are produced, delivered and installed independently, customers need to select, plan a site and construct and install separately, so that the engineering construction cost of the data center water system for providing the cold water system is very high, and meanwhile, the combined scheme is large in occupied area and large in power consumption of the whole system.

Disclosure of Invention

In order to overcome the defects in the prior art, the utility model aims to provide integrated closed cooling equipment; the integrated closed cooling device is characterized in that a refrigerant system is configured on the basis of an indirect evaporative cooling tower to further reduce the water supply temperature, heat exchange of the refrigerant system is completed through two heat exchange systems, the integrated closed cooling device is provided with a main cooling system with water cooling and an auxiliary cooling system with air cooling, the indirect evaporative cooling heat exchange unit is used for replacing the cooling function of the indirect evaporative cooling tower, the integrated closed cooling device is composed of a frame, symmetrical trapezoid heat exchange module units, shell and tube condensers, shell and tube evaporators, compressors, fluorine pumps and the like, the symmetrical trapezoid heat exchange module units are placed on two sides of a box body, the center of the extension direction is symmetrical, the shell and tube evaporators are arranged in the middle, the compressors are arranged above the evaporators, the shell and tube condensers are arranged on two sides of the box body, and a precooling pump and a cooling pump are placed below a water receiving disc. The left side and the right side of the indirect evaporative cooling heat exchange unit are respectively arranged into a precooling coil, a filler and a cooling coil from outside to inside, a water receiving tray is arranged below the precooling coil, meanwhile, a frame of the unit adopts 8 standard ISO1161 container corner fittings to be arranged at eight vertexes of a box body, a square tube is respectively adopted as a main beam and a main upright post in three directions of a space X, Y, Z, the corner fittings, the main beam and the main upright post are spliced together by adopting a welding process, a row of channel steel or C-shaped parts are arranged at the bottom of the box body to serve as secondary cross beams, and the channel steel or C-shaped parts are welded together by adopting the welding process.

The technical scheme of the embodiment of the utility model is as follows:

an integrated closed cooling device comprises a frame, a plurality of trapezoid indirect evaporation cooling units, a shell tube condenser, a shell tube evaporator, a compressor, a fluorine pump, a precooling pump, a cooling pump, an expansion valve, an electric valve, a pipeline system and a controller, wherein the trapezoid indirect evaporation cooling units are fixedly connected with the frame, the shell tube evaporator is positioned between two adjacent trapezoid indirect evaporation cooling units, the compressor is positioned in the upper space of the shell tube evaporator, the shell tube condenser is positioned at the outer side of the air inlet direction of the trapezoid indirect evaporation cooling units, the precooling pump, the cooling pump, the fluorine pump, the electric valve are positioned at the two sides of the sealing side of the trapezoid indirect evaporation cooling units, the trapezoid indirect evaporation cooling units comprise a unit shell, a natural air heat exchange module, a circulating water heat exchange module and a refrigerant heat exchange module, the natural air heat exchange module is provided with a water inlet end and a warm water outlet end, the circulating water heat exchange module is provided with a water inlet end, the water outlet end, the cold water inlet end is connected with the cold water inlet end, the cold water outlet end is connected with the cold water inlet end, the cold water inlet end is connected with the cold water pump through a cold water inlet end, the cold water inlet end is connected with the cold water pump through a cold water inlet end, and the cold water inlet end is connected with the cold water pump and cold water pump, and cold water is cooled down The refrigerant air outlet end is respectively communicated with the liquid inlet end and the air inlet end of the shell-and-tube condenser through the pipeline system, one path of the liquid outlet end of the shell-and-tube condenser is sequentially communicated with the fluorine pump, the shell-and-tube evaporator and the refrigerant air inlet end through the pipeline system, the other path of the liquid outlet end of the shell-and-tube condenser is sequentially communicated with the electric valve, the expansion valve, the shell-and-tube evaporator, the compressor and the refrigerant air inlet end through the pipeline system, and the controller is electrically connected with the compressor, the fluorine pump, the precooling pump, the cooling pump and the electric valve.

Preferably, the natural wind heat exchange module comprises a fan, a first precooling coil and a second precooling coil, the circulating water heat exchange module comprises a first filler, a second filler, a first water distributor, a second water distributor and a water receiving disc, the refrigerant heat exchange module comprises a cooling coil, the unit shell comprises a shell frame and sealing plates, the first precooling coil and the second precooling coil are respectively located at two sides of the air inlet direction of the shell frame, the first filler and the second filler are respectively located at the rear of the first precooling coil and the second precooling coil, the cooling coil is located in the middle of the first filler and the second filler, the first water distributor and the second water distributor are respectively located above the first filler and the second filler, the fan is located at the top of the shell frame, the water receiving disc is located at the bottom of the shell frame, and the sealing plates are located at two sides of the shell frame in the non-air inlet direction.

Preferably, the frame comprises a box column, a box main beam, a box secondary beam and box corner pieces, wherein the box column is fixedly connected with the main beam through the box corner pieces, the secondary beam is fixedly connected with the box main beam, and the trapezoid indirect evaporative cooling unit is arranged on the secondary beam.

Compared with the prior art, the utility model has the beneficial effects that:

by the built-in compressor system, the whole machine room cold source system is not provided with a water chilling unit. The area utilization rate of the customer site is improved; the power of the trapezoid indirect evaporative cooling heat exchange unit can be controlled more finely by the aid of the built-in refrigerant system for supplementing cooling, and power consumption of equipment is reduced; the cold standby is integrated, the construction site can be in place once, the site hoisting construction is reduced, and the cost is reduced; the whole air inlet area of the cold standby is large, the wind resistance is small, and the power of a fan can be effectively reduced, so that the energy-saving effect is achieved; the unit adopts standard container corner fittings, and is convenient for transportation and hoisting.

Drawings

FIG. 1 is a schematic view of an integrated closed cooling apparatus according to the present utility model;

FIG. 2 is a schematic diagram of a second embodiment of an integrated closed cooling apparatus according to the present utility model;

FIG. 3 is a schematic diagram of a trapezoid indirect evaporative cooling unit according to the present utility model;

FIG. 4 is a schematic diagram of a trapezoid indirect evaporative cooling unit according to the present utility model;

FIG. 5 is a schematic view of a frame according to the present utility model;

10. a frame; 11. a box column; 12. a main beam of the box body; 13. a box secondary beam; 14. a box corner fitting; 20. a trapezoidal indirect evaporative cooling unit; 201. a blower; 202. a first water distributor; 203. a water receiving tray; 204. a sealing plate; 205. the second water distributor; 206. a first pre-cooling coil; 207. a first filler; 208. a second filler; 209. a second pre-cooling coil; 210. a cooling coil; 211. a housing frame; 30. a shell-and-tube condenser; 40. a shell-and-tube evaporator; 50. a compressor; 60. a fluorine pump; 70. a precooling pump; 80. and a cooling pump.

Detailed Description

In order that the utility model may be readily understood, a more complete description of the utility model will be rendered by reference to the appended drawings. Preferred embodiments of the present utility model are shown in the drawings. This utility model may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.

It will be understood that when an element is referred to as being "fixed to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this utility model belongs. The terminology used herein in the description of the utility model is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model.

Fig. 1 and 2 show a schematic structural diagram of an integrated closed cooling apparatus according to the present utility model, wherein fig. 1 is a schematic structural diagram; FIG. 2 is a schematic diagram of a second embodiment of an integrated closed cooling apparatus according to the present utility model; an integrated closed cooling device comprises a frame 10, a plurality of trapezoid indirect evaporative cooling units 20, shell-tube condensers 30, shell-tube evaporators 40, a compressor 50, a fluorine pump 60, a precooling pump 70, a cooling pump 80, an expansion valve, an electric valve, a pipeline system and a controller, wherein the trapezoid indirect evaporative cooling units 20 are fixedly arranged on the frame, the trapezoid indirect evaporative cooling units 20 are uniformly arranged on the frame 10 at intervals and fixedly connected with the frame 10, the shell-tube evaporators 40 are positioned between two adjacent trapezoid indirect evaporative cooling units 20, the compressor 50 is positioned in the space above the shell-tube evaporators 40, the shell-tube condensers 30 are positioned on the outer sides of the trapezoid indirect evaporative cooling units 20 in the air inlet direction, the precooling pump 70, the cooling pump 80, the fluorine pump 60 and the electric valve are positioned on two sides of the sealing side of the trapezoid indirect evaporative cooling units, the trapezoid indirect evaporative cooling unit comprises a unit shell, a natural wind heat exchange module, a circulating water heat exchange module and a refrigerant heat exchange module which are arranged inside, wherein the natural wind heat exchange module is provided with a cold water inlet end and a warm water outlet end, the circulating water heat exchange module is provided with a hot water inlet end and a cold water outlet end, the refrigerant heat exchange module comprises a refrigerant inlet end, a refrigerant outlet end and a refrigerant outlet end, the cold water outlet end is communicated with the inlet end of the precooling pump through a pipeline system, the outlet end of the precooling pump is communicated with the cold water inlet end through the pipeline system, the warm water outlet end is communicated with the inlet end of the shell-tube condenser through the pipeline system, the outlet end of the shell-tube condenser is communicated with the inlet end of the cooling pump, the water outlet end of the cooling pump is communicated with the hot water inlet end through the pipeline system, the refrigerant liquid outlet end and the refrigerant air outlet end are respectively communicated with the liquid inlet end and the air inlet end of the shell-tube condenser through the pipeline system, one way of the liquid outlet end of the shell-tube condenser is sequentially communicated with the fluorine pump, the shell-tube evaporator and the refrigerant air inlet end through the pipeline system, the other way of the liquid outlet end of the shell-tube condenser is sequentially communicated with the electric valve, the expansion valve, the shell-tube evaporator, the compressor and the refrigerant air inlet end through the pipeline system, and the controller is electrically connected with the compressor, the fluorine pump, the precooling pump, the cooling pump and the electric valve.

The equipment integrates the cooling tower function, the refrigerant system and various power water pumps on one frame, has the cooling function of the cooling tower and the further cooling function of the water chiller, solves the problem of cooling and warming heat dissipation generated when the equipment cools itself, and can be used as a single equipment for cooling the terminal air conditioner of a machine room. The trapezoid indirect evaporative cooling unit on the equipment has an indirect evaporative cooling function, has the cooling function of a cooling tower, and is used for condensing a refrigerant system of the equipment to cool and release condensing pressure. In the utility model, the refrigerant system consists of a refrigerant heat exchange module, a shell-and-tube condenser, a shell-and-tube evaporator, a compressor, a fluorine pump, an expansion valve, an electric valve, a pipeline system, a controller and the like, wherein the refrigerant heat exchange module is arranged in a trapezoid indirect evaporation cooling unit, the cooling function of the trapezoid indirect evaporation cooling unit is utilized to cool the refrigerant heat exchange module, the refrigerant system is provided with two condensation channels, the refrigerant heat exchange module is firstly used for primary condensation, part of gaseous refrigerant is condensed into liquid refrigerant, the other gaseous refrigerant is conveyed to the shell-and-tube condenser for further cooling and condensation until all gaseous cold coal is condensed into liquid refrigerant, and the liquid refrigerant is simultaneously conveyed to the shell-and-tube condenser for storage in the refrigerant heat exchange module, so the shell-and-tube condenser is provided with an air inlet end, a liquid inlet end and a liquid outlet end, the gaseous refrigerant enters the refrigerant heat exchange module from the air inlet end, the liquid refrigerant is output from the shell-and-tube condenser and then is subjected to heat absorption sublimation into the gaseous refrigerant through a pipeline system and is conveyed into the refrigerant heat exchange module through a fluorine pump or a compressor conveying valve shell-and-tube evaporator, the fluorine pump and the compressor are used as a refrigerant liquid conveying power structure, the operation can be selected according to the external environment, the controller is used as a control center of equipment, the external environment temperature is measured, when the external temperature is higher than a first set temperature, the controller controls the compressor to operate, the fluorine pump is closed, the liquid refrigerant in the shell-and-tube condenser is sequentially communicated with an electric valve, an expansion valve, the shell-and-tube evaporator, the compressor and the refrigerant heat exchange module through the pipeline system, the electric valve is opened at the moment, the liquid refrigerant is throttled through the expansion valve and is conveyed into the shell-and-tube evaporator to exchange heat with external chilled water, sublimating into a gaseous refrigerant after absorbing heat, and releasing heat and cooling external chilled water; when the external temperature is lower than the first set temperature, the controller controls the fluorine pump to operate and the compressor to be closed. The liquid refrigerant in the shell-and-tube condenser is sequentially communicated with the refrigerant heat exchange module through the fluorine pump, the shell-and-tube evaporator and the pipeline system, the electric valve is closed at the moment, the liquid refrigerant is conveyed into the shell-and-tube evaporator through the fluorine pump to exchange heat with external chilled water, sublimated into gaseous refrigerant after absorbing heat, the external chilled water releases heat and cools down, the temperature requirement of the chilled water is higher due to lower external environment temperature, and the liquid refrigerant can meet the heat absorption requirement of the refrigerant by only absorbing less heat relatively through the fluorine pump. The cooling pump pumps the circulating cold water of the water receiving disc to the shell-and-tube condenser to perform secondary condensation on the gaseous condensation in the shell-and-tube condenser.

According to the utility model, two trapezoid indirect evaporative cooling units are symmetrically arranged on the frame, and other components are arranged on the lower shell of the trapezoid indirect evaporative cooling units due to the fact that the trapezoid indirect evaporative cooling units are in a structure shape with wide upper part and narrow lower part.

For how the refrigerant heat exchange module exchanges heat, cools and condenses the gaseous refrigerant, how the shell-and-tube condenser provides cold water for exchanging heat and cooling, how the condensing and cooling energy efficiency is further improved, as shown in fig. 3 and 4, fig. 3 is a schematic diagram I of a trapezoid indirect evaporative cooling unit in the utility model; FIG. 4 is a schematic diagram of a trapezoid indirect evaporative cooling unit according to the present utility model; preferably, the natural wind heat exchange module comprises a fan 201, a first pre-cooling coil 206 and a second pre-cooling coil 209, the circulating water heat exchange module comprises a first filler 207, a second filler 208, a first water distributor 202, a second water distributor 205 and a water receiving disc 203, the refrigerant heat exchange module comprises a cooling coil 210, the unit housing comprises a housing frame 211 and a sealing plate 204, the first pre-cooling coil 206 and the second pre-cooling coil 209 are respectively positioned at two sides of the housing frame 211 in the air inlet direction, the first filler 207 and the second filler 208 are respectively positioned at the rear of the first pre-cooling coil 206 and the second pre-cooling coil 209, the cooling coil 210 is positioned in the middle of the first filler 207 and the second filler 208, the first water distributor 202 and the second water distributor 205 are respectively positioned above the first filler 207 and the second filler 208, the fan 201 is positioned at the top of the housing frame 211, the water receiving disc 203 is positioned at the bottom of the housing frame 211, and the sealing plate 204 is positioned at two sides of the housing frame 211 in the non-air inlet direction.

The trapezoid indirect evaporative cooling unit has two main functions, namely, the first is to conduct first heat exchange cooling condensation on gaseous refrigerants, the second is to conduct second heat exchange cooling condensation on gaseous refrigerants which are not condensed for the first time, the trapezoid indirect evaporative cooling unit has a cooling function, cold air and cold water are generated, the cold air and the cold water are pumped into a filler with circulating water through a fan, the external natural air and the circulating water are subjected to indirect evaporation and other processes, the natural air and the circulating water temperature are reduced together, the cold air is sent to a cooling coil in a refrigerant heat exchange module, the gaseous refrigerants in the cooling coil are subjected to heat exchange condensation, and the cold water is sent to a shell-tube condenser to conduct heat exchange condensation on the gaseous refrigerants. The precooling pump pumps cold water in the water receiving tray into the first precooling coil and the second precooling coil to precool external natural wind, and the heated circulating water is sent to the shell-and-tube condenser to be converged with the circulating cold water pumped by the cooling water pump to condense gaseous refrigerant in the shell-and-tube condenser.

In the trapezoid indirect evaporative cooling unit, a shell frame is used as a supporting body, a fan is arranged at the top of the shell frame, a first precooling coil and a second precooling coil are arranged on the air inlet two sides of the shell frame, the other two sides are sealed by sealing plates, a first filler and a second filler are respectively positioned behind the first precooling coil and the second precooling coil, a cooling coil is positioned between the first filler and the second filler, a first water distributor and a second water distributor are respectively positioned above the first filler and the second filler, and a water receiving disc is positioned below the first filler and the second filler. The cooling coil is used as a first condensing part of the refrigerant system and is arranged in the trapezoid indirect evaporative cooling unit, the generated cold air is utilized to cool, heat and condensate the cooling coil, the whole trapezoid indirect evaporative cooling unit has all functions of a cooling tower, and the cooling coil is compact in structure and small in occupied area, can be used as a single-sided module for standard mass production, and greatly improves the cooling efficiency of equipment. Cold water generated by the trapezoid indirect evaporative cooling unit is sent to a second condensation position of the refrigerant system to be condensed for the second time, and the condensation pressure of the refrigerant system is fully released.

In order to make the device more firm, as shown in fig. 5, fig. 5 is a schematic structural view of the frame in the present utility model; preferably, the frame 10 includes a box upright 11, a box main beam 12, a box sub beam 13, and a box corner member 14, where the box upright is fixedly connected with the main beam through the box corner member, the sub beam is fixedly connected with the box main beam, and the trapezoid indirect evaporative cooling unit is disposed on the sub beam.

The frame bottom needs to bear greatly and the bottom needs the air inlet, so the bottom adopts the box main beam to add the structural style of last crossbeam, the inboard air inlet of trapezoidal indirect evaporative cooling unit enters into equipment from the space between the bottom box secondary beam, for convenient construction installation, equipment periphery all is equipped with the stand, and the fixed box corner fittings of taking of connection between stand and the main beam carries out fixed fastening, if leave the gap, can weld better fixed connection.

The technical features of the above embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.

The foregoing examples only represent preferred embodiments of the present utility model, which are described in more detail and are not to be construed as limiting the scope of the utility model. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the utility model, which are all within the scope of the utility model. Accordingly, the scope of protection of the present utility model is to be determined by the appended claims.

Claims

1. An integrated closed cooling device, characterized in that:

the cooling system comprises a frame, a plurality of trapezoid indirect evaporation cooling units, a shell tube condenser, a shell tube evaporator, a compressor, a fluorine pump, a precooling pump, a cooling pump, an expansion valve, an electric valve, a pipeline system and a controller, wherein the trapezoid indirect evaporation cooling units are fixedly arranged on the frame, the trapezoid indirect evaporation cooling units are uniformly arranged on the frame and fixedly connected with the frame, the shell tube evaporator is positioned between two adjacent trapezoid indirect evaporation cooling units, the compressor is positioned in the upper space of the shell tube evaporator, the shell tube condenser is positioned on the outer side of the air inlet direction of the trapezoid indirect evaporation cooling units, the precooling pump, the fluorine pump, the electric valve are positioned on two sides of the sealing side of the trapezoid indirect evaporation cooling units, the trapezoid indirect evaporation cooling units comprise a unit shell, a circulating water heat exchange module and a refrigerant heat exchange module, the natural air heat exchange module is provided with a cold water inlet end and a warm water outlet end, the circulating water heat exchange module is provided with a hot water inlet end and a cold water outlet end, the compressor is positioned at the upper space of the shell tube evaporator, the shell tube condenser is positioned at the outer side of the air inlet end, the cooling pump is communicated with the cold water outlet end of the cooling pump, the cooling pump is communicated with the cold water inlet end of the cooling pump, and the cold water outlet end is communicated with the cold water inlet end of the cooling pump through a cold water inlet end of the cooling pipe system, and the cold water inlet end of the cooling pump, and the cold water inlet end is communicated with the cold water pump through the cold water inlet end and the cold water pump, and the cold water outlet end The refrigerant air outlet end is respectively communicated with the liquid inlet end and the air inlet end of the shell-and-tube condenser through the pipeline system, one path of the liquid outlet end of the shell-and-tube condenser is sequentially communicated with the fluorine pump, the shell-and-tube evaporator and the refrigerant air inlet end through the pipeline system, the other path of the liquid outlet end of the shell-and-tube condenser is sequentially communicated with the electric valve, the expansion valve, the shell-and-tube evaporator, the compressor and the refrigerant air inlet end through the pipeline system, and the controller is electrically connected with the compressor, the fluorine pump, the precooling pump, the cooling pump and the electric valve.

2. The integrated closed cooling apparatus of claim 1, wherein:

the natural wind heat exchange module comprises a fan, a first precooling coil and a second precooling coil, the circulating water heat exchange module comprises a first filler, a second filler, a first water distributor, a second water distributor and a water receiving disc, the refrigerant heat exchange module comprises a cooling coil, the unit shell comprises a shell frame and sealing plates, the first precooling coil and the second precooling coil are respectively located at two sides of the air inlet direction of the shell frame, the first filler and the second filler are respectively located at the rear of the first precooling coil and the second precooling coil, the cooling coil is located in the middle of the first filler and the second filler, the first water distributor and the second water distributor are respectively located above the first filler and the second filler, the fan is located at the top of the shell frame, the water receiving disc is located at the bottom of the shell frame, and the sealing plates are located at two sides of the non-air inlet direction of the shell frame.

3. The integrated closed cooling apparatus of claim 2, wherein:

the frame comprises a box column, a box main beam, a box secondary beam and box corner pieces, wherein the box column is fixedly connected with the main beam through the box corner pieces, the secondary beam is fixedly connected with the box main beam, and the trapezoid indirect evaporative cooling unit is arranged on the secondary beam.