CN217308105U - Mode-adjustable air conditioning device - Google Patents

Abstract

The utility model relates to a mode adjustable air conditioning equipment, including off-premises station unit and indoor set unit, off-premises station unit and indoor set unit pass through the tube coupling and form the second grade return circuit, the off-premises station unit is including compound integrative condenser, heat pipe condenser and filter, the indoor set unit is including compound integrative evaporimeter, heat pipe evaporimeter and compressor, compound integrative condenser pass through the pipeline in proper order with the filter, compound integrative evaporimeter and compressor are connected, form the return circuit, the heat pipe condenser passes through the pipeline and is connected with the heat pipe evaporimeter, form the return circuit, be connected with the expansion valve between filter and the compound integrative evaporimeter, expansion valve both sides parallel connection has first solenoid valve. The utility model constructs a secondary refrigeration loop, realizes that higher hot air generates low enough air through the two-stage heat exchanger, and meets the cooling requirement of a machine room; the utility model discloses an inside difference in temperature of heat exchanger is even, has reduced the loss of temperature difference, has improved heat exchange efficiency, improves heat pipe system heat exchange efficiency.

Description

Mode-adjustable air conditioning device

Technical Field

The utility model relates to a mode adjustable air conditioning equipment belongs to computer lab heat dissipation and heat pipe technical field.

Background

At present, the integration density of cabinet servers in a machine room is higher and higher, the heat productivity of servers is larger and larger, and in order to ensure that the servers in a high-heat-density machine room work at the most suitable ambient temperature, the heat exchange mode of the high-heat-density machine room is continuously developed and changed at present. The heat exchange system of the cold/hot channel closed machine room greatly improves the return air temperature of the air conditioning unit and the energy efficiency of the unit; compared with a room-level air conditioner, the air supply transmission distance is short, a high static pressure fan with high power consumption is not required, and the energy consumption is reduced; and the air conditioner is close to a heat source for refrigeration, so that the problem of local hot spots in a machine room is solved to a certain extent. Based on the above advantages, the heat exchange system of the cold/hot channel closed machine room is gaining market acceptance.

The heat exchange system of the cold/hot channel closed machine room adopts a direct evaporation type, and also adopts a chilled water type, but the heat exchange system adopts single-stage refrigeration, so that the temperature difference of the returned air is small, the lower air supply temperature is not easy to realize, and the return air with higher temperature of the cold/hot channel closed machine room cannot be fully utilized.

Disclosure of Invention

In order to solve the technical problem, the utility model provides a mode adjustable air conditioning device, its concrete technical scheme as follows:

the utility model provides a mode adjustable air conditioning equipment, includes off-premises station unit and indoor set unit, off-premises station unit and indoor set unit pass through the tube coupling and form the second grade return circuit, the off-premises station unit includes compound integrative condenser, heat pipe condenser and filter, the indoor set unit includes compound integrative evaporimeter, heat pipe evaporimeter and compressor, compound integrative condenser passes through the pipeline and is connected with filter, compound integrative evaporimeter and compressor in proper order, forms the return circuit, the heat pipe condenser passes through the pipeline and is connected with the heat pipe evaporimeter, forms the return circuit, be connected with the expansion valve between filter and the compound integrative evaporimeter, expansion valve both sides parallel connection has first solenoid valve.

Further, connect the second solenoid valve between compound integrative evaporimeter and the compressor, be connected with the first check valve that switches on towards compound integrative condenser between compressor and the compound integrative condenser, the second solenoid valve is close to compound integrative evaporimeter one side and is close to compound integrative condenser one side parallel connection with first check valve and has the second check valve that third solenoid valve and orientation compound integrative condenser switched on.

Further, the horizontal height of the outdoor unit is higher than that of the indoor unit.

Further, an outer fan is arranged on one side of the composite integrated condenser, and an inner fan is arranged on one side of the composite integrated evaporator.

The utility model has the advantages that:

the utility model constructs a second-stage refrigeration loop, realizes that higher hot air generates low enough air through a two-stage heat exchanger, and meets the cooling requirement of a machine room; the utility model discloses an inside difference in temperature of heat exchanger is even, has reduced the loss of temperature difference, has improved heat exchange efficiency, improves heat pipe system heat exchange efficiency.

Drawings

Figure 1 is a schematic view of the whole structure of the utility model,

in the figure: 1-external fan, 2-composite integrated condenser, 3-heat pipe condenser, 4-filter, 5-expansion valve, 6-first solenoid valve, 7-heat pipe evaporator, 8-internal fan, 9-composite integrated evaporator, 10-third solenoid valve, 11-second solenoid valve, 12-compressor, 13-first one-way valve, 14-second one-way valve.

Detailed Description

The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic drawings and illustrate the basic structure of the present invention only in a schematic manner, and thus show only the components related to the present invention.

As shown in fig. 1, an air conditioner with adjustable modes comprises an outdoor unit and an indoor unit, wherein the outdoor unit and the indoor unit are connected through a pipeline to form a secondary loop. The outdoor unit comprises a composite condenser 2, a heat pipe condenser 3 and a filter 4. An outer fan 1 is arranged on one side of the composite integrated condenser 2. The indoor unit comprises a composite integral evaporator 9, a heat pipe evaporator 7 and a compressor 12, wherein an inner fan 8 is arranged on one side of the composite integral evaporator 9. The composite integrated condenser 2 is sequentially connected with the filter 4, the composite integrated evaporator 9 and the compressor 12 through pipelines to form a loop, and the heat pipe condenser 3 is connected with the heat pipe evaporator 7 through pipelines to form a loop. An expansion valve 5 is connected between the filter 4 and the composite integral evaporator 9, and a first electromagnetic valve 6 is connected in parallel at two sides of the expansion valve 5. A second electromagnetic valve 11 is connected between the composite integral evaporator 9 and the compressor 12, and a first check valve 13 which is conducted toward the composite integral condenser 2 is connected between the compressor 12 and the composite integral condenser 2. The side of the second electromagnetic valve 11 close to the composite integrated evaporator 9 and the side of the first check valve 13 close to the composite integrated condenser 2 are connected in parallel with a third electromagnetic valve 10 and a second check valve 14 which is conducted towards the composite integrated condenser 2. The utility model relates to a mode adjustable air conditioning equipment's running state can be four kinds. The first is the secondary cooling operation of the heat pipe and the heat pipe; the second is the secondary cooling operation of heat pipe and mechanical refrigeration; the third is single heat pipe operation; and the fourth is single mechanical refrigeration operation. The four operation states can be automatically switched to operate, thereby achieving the energy-saving effect.

The operation of a mode-adjustable air conditioning system is as follows: under the power action of a fan 8 in the indoor unit, hot air in the machine room firstly passes through the heat pipe evaporator 7, and low-temperature refrigerant in the heat pipe evaporator 7 exchanges heat to become cold air with lower temperature. The cold air with lower temperature passes through the composite integrated evaporator and exchanges heat with the low-temperature refrigerant in the composite integrated evaporator to become the cold air with lower temperature. Cold air enters the machine room, so that the machine room is cooled. The structure types of the heat pipe evaporator 7 and the composite integrated evaporator include, but are not limited to, copper pipe aluminum fins, micro-channel radiators and the like. The outdoor unit must be installed at a level higher than that of the indoor unit so that the liquid refrigerant can be introduced into the machine room along the transfer pipe by gravity. The low-temperature liquid refrigerant provided by the heat pipe condenser 3 of the outdoor unit enters the indoor unit along the transmission pipeline under the action of gravity, and then passes through the heat pipe evaporator 7 to become gaseous refrigerant after heat exchange, and the gaseous refrigerant rises under the action of density difference and enters the outdoor unit through the transmission pipeline. The compressor 12, the first check valve 13, the second check valve 14, the first solenoid valve 6, the second solenoid valve 11, the combined condenser 2, the expansion valve 5 and the combined evaporator 9 in the outdoor unit form a system loop with switchable heat pipes and the compressor 12. When the mechanical refrigeration state is switched, the compressor 12 sucks gaseous refrigerant from the composite integral evaporator 9, the gaseous refrigerant is compressed by the compressor 12 and is discharged into the composite integral condenser 2 for heat exchange and condensation to form liquid refrigerant, and the liquid refrigerant flows into the composite integral evaporator 9 through the expansion valve 5 to absorb heat and evaporate and then returns to the mechanical refrigeration cycle process of the compressor 12. When the outdoor unit is switched to the heat pipe refrigeration state, the low-temperature liquid refrigerant provided by the heat pipe condenser 3 of the outdoor unit enters the indoor unit along the transmission pipeline under the action of gravity, passes through the heat pipe evaporator 7 again, becomes a gaseous refrigerant after heat exchange, rises under the action of density difference, and enters the circulation process of the outdoor unit through the transmission pipeline.

The utility model relates to a mode adjustable air conditioning equipment, higher hot-air process in the computer lab with heat pipe evaporator 7, the 9 two-stage heat exchanges of compound integrative evaporimeter, can produce the air that the temperature is lower. The utility model constructs a secondary refrigeration loop, realizes that higher hot air generates low enough air through the two-stage heat exchanger, and meets the cooling requirement of a machine room; the utility model discloses an inside difference in temperature of heat exchanger is even, has reduced the loss of temperature difference, has improved heat exchange efficiency, improves heat pipe system heat exchange efficiency.

In light of the foregoing, it will be apparent to those skilled in the art from this disclosure that various changes and modifications can be made without departing from the spirit and scope of the invention. The technical scope of the present invention is not limited to the content of the description, and must be determined according to the scope of the claims.

Claims (4)

1. An air conditioning device with adjustable modes is characterized in that: including off-premises station unit and indoor set unit, off-premises station unit and indoor set unit pass through the tube coupling and form the secondary circuit, the off-premises station unit includes compound integrative condenser (2), heat pipe condenser (3) and filter (4), the indoor set unit includes compound integrative evaporimeter (9), heat pipe evaporator (7) and compressor (12), compound integrative condenser (2) are connected with filter (4), compound integrative evaporimeter (9) and compressor (12) in proper order through the pipeline, form the return circuit, heat pipe condenser (3) are connected with heat pipe evaporator (7) through the pipeline, form the return circuit, be connected with expansion valve (5) between filter (4) and the compound integrative evaporimeter (9), expansion valve (5) both sides parallel connection has first solenoid valve (6).

2. The mode-tunable air conditioning apparatus of claim 1, wherein: connect second solenoid valve (11) between compound integrative evaporimeter (9) and compressor (12), be connected with between compressor (12) and compound integrative condenser (2) first check valve (13) that switch on towards compound integrative condenser (2), second solenoid valve (11) are close to compound integrative evaporimeter (9) one side and first check valve (13) and are close to second check valve (14) that compound integrative condenser (2) one side parallel connection had third solenoid valve (10) and switch on towards compound integrative condenser (2).

3. The mode-tunable air conditioning apparatus of claim 1, wherein: the horizontal height of the outdoor unit is higher than that of the indoor unit.

4. The mode-tunable air conditioning apparatus of claim 1, wherein: an outer fan (1) is arranged on one side of the composite integrated condenser (2), and an inner fan (8) is arranged on one side of the composite integrated evaporator (9).

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