Heat management equipment of energy storage air conditioner

Abstract

The utility model relates to the technical field of heat management of energy storage air conditioners, and discloses a heat management device of an energy storage air conditioner, which comprises a cabinet and an air conditioner water side system, a frequency conversion compressor is fixedly mounted in the cabinet, a micro-channel condenser is fixedly mounted on one side, close to the frequency conversion compressor, in the cabinet, and a micro-channel condenser is fixedly mounted on the other side of the cabinet. An exhaust pipe fixedly communicates between the outlet end of the inverter compressor and the inlet end of the micro-channel condenser, a side frame is fixedly installed on the side of the cabinet, and a plurality of turbofans are fixedly installed on the side, close to the micro-channel condenser, of the interior of the side frame at intervals. The outlet end of the micro-channel condenser is fixedly communicated with a liquid storage filter through a liquid outlet pipe a, and the outlet end of the liquid storage filter is fixedly communicated with an electronic throttling expansion valve through a refrigerant guide pipe a. The micro-channel condenser with the enlarged and widened specification can be conveniently loaded, the generated heat exchange amount can be increased, and the heat exchange efficiency is improved. And the refrigeration performance of the equipment is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of energy storage air conditioner thermal management, and more specifically, to a thermal management device for an energy storage air conditioner. Background Art

[0002] With the continuous progress of technology and the expansion of applications, energy storage air conditioners will play an increasingly important role in future development. Energy storage air conditioners use low-valley electricity at night to drive the refrigeration unit to refrigerate, and store the cold energy in high-end biological phase change energy storage materials. When needed, the cold energy is released, which can achieve peak shifting and valley filling, thus avoiding the high operating cost of air conditioners during peak electricity periods. The thermal management devices of existing energy storage air conditioners usually use the heat exchange method between the condenser and the cold water in the water storage tank to cool the high-temperature and high-pressure gas. Since the water storage tank occupies part of the space in the cabinet, the installation volume of the condenser is limited, and a larger-sized condenser cannot be installed. The heat exchange amount generated is relatively limited, affecting the refrigeration performance of the equipment. In view of this, we propose a thermal management device for an energy storage air conditioner to solve the above problems. Summary of the Utility Model

[0003] In order to overcome the deficiencies of the prior art, the utility model provides a thermal management device for an energy storage air conditioner to solve the problems raised in the above background art.

[0004] To achieve the above object, the utility model provides the following technical solutions:

[0005] A thermal management device for an energy storage air conditioner, comprising a cabinet and an air conditioner water side system. A variable frequency compressor is fixedly installed inside the cabinet. A microchannel condenser is fixedly installed on one side of the cabinet near the variable frequency compressor. An exhaust pipe is fixedly connected between the outlet end of the variable frequency compressor and the inlet end of the microchannel condenser. A side frame is fixedly installed on the side of the cabinet. A plurality of turbine fans are fixedly installed at intervals on one side of the side frame near the microchannel condenser. The outlet end of the microchannel condenser is fixedly connected to a liquid storage filter through a liquid outlet pipe a. The outlet end of the liquid storage filter is fixedly connected to an electronic throttle expansion valve through a refrigerant conduit a. The outlet end of the electronic throttle expansion valve is fixedly connected to a plate heat exchanger through a refrigerant conduit b. The refrigerant outlet end of the plate heat exchanger is fixedly connected to the inlet end of the variable frequency compressor through a refrigerant conduit c. A water side water pump is fixedly installed on the other side of the cabinet near the variable frequency compressor. The inlet end of the water side water pump is fixedly connected to the antifreeze outlet end of the air conditioner water side system through a water pipe a. The outlet end of the water side water pump is fixedly connected to a PTC heater through a water pipe b. The antifreeze inlet end of the plate heat exchanger is fixedly connected to the outlet end of the PTC heater through a water pipe c.

[0006] As a preferred technical solution of the present utility model, the antifreeze outlet end of the plate heat exchanger is fixedly communicated with a liquid outlet pipe b, and a liquid outlet joint is fixedly arranged at the end of the liquid outlet pipe b.

[0007] As a preferred technical solution of the present utility model, one end of the water pipe a is fixedly communicated with a return pipe, and a liquid inlet joint is fixedly arranged at the end of the return pipe.

[0008] As a preferred technical solution of the present utility model, the number of the turbine fans is three, and the turbine fans are longitudinally arranged at equal intervals in the side frame.

[0009] As a preferred technical solution of the present utility model, a front handle is fixedly connected to the front side of the cabinet, and a rear handle is fixedly connected to the back side of the side frame.

[0010] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0011] In the present utility model, a high-temperature and high-pressure refrigerant gas generated by a variable-frequency compressor enters a microchannel condenser. The air generated by the turbine fan passes through the microchannel condenser and undergoes efficient heat exchange, turning the high-temperature and high-pressure refrigerant gas in the microchannel condenser pipeline into a low-temperature and high-pressure refrigerant liquid and flowing out. It sequentially passes through the liquid outlet pipe a and the liquid storage filter and enters an electronic throttling expansion valve. The refrigerant liquid undergoes throttling treatment to become a low-temperature and low-pressure gas-liquid mixture refrigerant and flows into the plate heat exchanger. The antifreeze of the air-conditioning water side system enters the water side water pump through the water pipe a. The water side water pump drives the antifreeze to enter the PTC heater through the water pipe b, and then passes through the water pipe c into the plate heat exchanger, where it exchanges heat with the throttled low-temperature and low-pressure gas-liquid mixture refrigerant. The gas-liquid mixture refrigerant becomes a low-pressure gas refrigerant, and the temperature of the antifreeze flowing through the plate heat exchanger decreases, thereby forming refrigeration. The storage water tank that occupies part of the space is cancelled, and the overall structure of the equipment is more compact, thereby increasing the installation volume of the microchannel condenser, facilitating the loading of a larger and wider microchannel condenser, enabling an increase in the generated heat exchange amount, and being beneficial to improving the refrigeration performance of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic internal structure diagram of a heat management device for an energy storage air conditioner of the present utility model;

[0013] Figure 2 It is a schematic side view structure diagram of a heat management device for an energy storage air conditioner of the present utility model;

[0014] Figure 3 It is a schematic top view structure diagram of a heat management device for an energy storage air conditioner of the present utility model.

[0015] In the figure: 1, cabinet; 101, variable frequency compressor; 102, front handle; 2, exhaust pipe; 3, micro-channel condenser; 4, side frame; 401, turbine fan; 402, rear handle; 5, liquid outlet pipe a; 6, liquid storage filter; 601, refrigerant conduit a; 7, electronic throttle expansion valve; 701, refrigerant conduit b; 8, plate heat exchanger; 9, refrigerant conduit c; 10, water pipe a; 11, water-side water pump; 12, PTC heater; 13, liquid outlet pipe b; 131, liquid outlet joint; 14, water pipe b; 15, liquid return pipe; 151, liquid inlet joint; 16, air-conditioning water-side system; 17, water pipe c. Detailed implementation manners

[0016] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part rather than all of the embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0017] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "longitudinal", "lateral", "upper", "lower", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present invention.

[0018] Such as Figures 1 to 3As shown in the figure, the present utility model provides a thermal management device for an energy storage air conditioner, including a cabinet 1 and an air conditioner water side system 16. A variable frequency compressor 101 is fixedly installed inside the cabinet 1. A microchannel condenser 3 is fixedly installed on one side of the cabinet 1 near the variable frequency compressor 101. A discharge pipe 2 is fixedly connected between the outlet end of the variable frequency compressor 101 and the inlet end of the microchannel condenser 3. The high-temperature and high-pressure refrigerant gas generated by the variable frequency compressor 101 enters the microchannel condenser 3. A side frame 4 is fixedly installed on the side of the cabinet 1. A plurality of turbine fans 401 are fixedly installed at intervals on one side of the side frame 4 near the microchannel condenser 3. The air generated by the turbine fans 401 passes through the microchannel condenser 3 and undergoes efficient heat exchange, turning the high-temperature and high-pressure refrigerant gas in the pipeline of the microchannel condenser 3 into a low-temperature and high-pressure refrigerant liquid and flowing out. The outlet end of the microchannel condenser 3 is fixedly connected to a liquid storage filter 6 through a liquid outlet pipe a5. The outlet end of the liquid storage filter 6 is fixedly connected to an electronic throttling expansion valve 7 through a refrigerant conduit a601. The outlet end of the electronic throttling expansion valve 7 is fixedly connected to a plate heat exchanger 8 through a refrigerant conduit b701. The low-temperature and high-pressure refrigerant liquid sequentially enters the electronic throttling expansion valve 7 through the liquid outlet pipe a5 and the liquid storage filter 6. The refrigerant liquid undergoes throttling treatment and becomes a low-temperature and low-pressure gas-liquid mixture refrigerant and flows into the plate heat exchanger 8. The refrigerant outlet end of the plate heat exchanger 8 is fixedly connected to the inlet end of the variable frequency compressor 101 through a refrigerant conduit c9. A water side water pump 11 is fixedly installed on the other side of the cabinet 1 near the variable frequency compressor 101. The inlet end of the water side water pump 11 is fixedly connected to the antifreeze outlet end of the air conditioner water side system 16 through a water pipe a10. The outlet end of the water side water pump 11 is fixedly connected to a PTC heater 12 through a water pipe b14. The antifreeze inlet end of the plate heat exchanger 8 is fixedly connected to the outlet end of the PTC heater 12 through a water pipe c17. The antifreeze of the air conditioner water side system 16 enters the water side water pump 11 through the water pipe a10. The water side water pump 11 drives the antifreeze to enter the PTC heater 12 through the water pipe b14, and then enters the plate heat exchanger 8 through the water pipe c17, and exchanges heat with the throttled low-temperature and low-pressure gas-liquid mixture refrigerant.

[0019] Among them, as Figure 1 shown, the antifreeze outlet end of the plate heat exchanger 8 is fixedly connected to a liquid outlet pipe b13. The end of the liquid outlet pipe b13 is fixedly provided with a liquid outlet joint 131, which can connect the liquid outlet pipe b13 to the inlet end of the heat dissipation pipeline of the air conditioner internal battery system, and use the low-temperature antifreeze to cool the battery system.

[0020] Among them, as Figure 3As shown in the figure, one end of the water pipe a10 is fixedly connected to a liquid return pipe 15. The end of the liquid return pipe 15 is fixedly provided with a liquid inlet joint 151, which can connect the liquid return pipe 15 to the outlet end of the heat dissipation pipeline of the battery system that needs to be cooled in the air conditioner, so that the antifreeze flows back to the water side water pump 11 through the liquid return pipe 15 and the water pipe a10 for recycling.

[0021] Among them, as Figure 2 shown, the number of turbine fans 401 is three. The turbine fans 401 are longitudinally arranged at equal intervals in the side frame 4, achieving the purpose of efficiently and uniformly dissipating heat from the microchannel condenser 3.

[0022] Among them, as Figure 2 and Figure 3 shown, a front handle 102 is fixedly connected to the front side of the cabinet 1, and a rear handle 402 is fixedly connected to the back side of the side frame 4, achieving the purpose of facilitating installers to place the cabinet 1 upright.

[0023] The working principle of the present utility model:

[0024] During use, the refrigerant gas is processed by the variable frequency compressor 101 to form a high-temperature and high-pressure refrigerant gas. The high-temperature and high-pressure refrigerant gas enters the microchannel condenser 3. The air generated by the turbine fan 401 passes through the microchannel condenser 3 and undergoes efficient heat exchange, turning the high-temperature and high-pressure refrigerant gas in the pipeline of the microchannel condenser 3 into a low-temperature and high-pressure refrigerant liquid and flowing out. It successively passes through the liquid outlet pipe a5 and the liquid storage filter 6 and enters the electronic throttle expansion valve 7. The refrigerant liquid undergoes throttling treatment to become a low-temperature and low-pressure gas-liquid mixture refrigerant and flows into the plate heat exchanger 8. The antifreeze of the air conditioner water side system 16 enters the water side water pump 11 through the water pipe a10. The water side water pump 11 drives the antifreeze to enter the PTC heater 12 through the water pipe b14, and then enters the plate heat exchanger 8 through the water pipe c17, and exchanges heat with the throttled low-temperature and low-pressure gas-liquid mixture refrigerant. The gas-liquid mixture refrigerant becomes a low-pressure gas refrigerant, and the temperature of the antifreeze flowing through the plate heat exchanger 8 decreases, thus forming refrigeration. The low-pressure gas refrigerant flows into the variable frequency compressor 101 through the refrigerant conduit c9. The variable frequency compressor 101 compresses the low-pressure gas refrigerant into a high-temperature and high-pressure gas refrigerant to form a cycle effect. At the same time, the temperature of the antifreeze decreases and flows out of the plate heat exchanger 8 and enters the heat dissipation pipeline of the battery system in the air conditioner through the liquid outlet pipe b13. The battery system is cooled by the low-temperature antifreeze. The antifreeze with an increased temperature finally returns to the water side water pump 11 through the liquid return pipe 15 and the water pipe a10 for recycling. The storage water tank that occupies part of the space is cancelled, and the overall structure of the equipment is more compact, thereby increasing the installation volume of the microchannel condenser 3, facilitating the loading of larger and wider microchannel condensers 3, and enabling an increase in the generated heat exchange amount.

[0025] It should be noted that in this text, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprising", "including" or any other variant thereof are intended to cover non-exclusive inclusion, such that a process, method, article or device comprising a series of elements not only includes those elements but also includes other elements not expressly listed, or elements inherent to such process, method, article or device.

[0026] Although the embodiments of the present utility model have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present utility model, and the scope of the present utility model is defined by the appended claims and their equivalents.

Claims

1. A thermal management device for an energy storage air conditioner, comprising a cabinet (1) and an air conditioner water side system (16), characterized in that: A variable frequency compressor (101) is fixedly installed inside the cabinet (1); a microchannel condenser (3) is fixedly installed on a side of the cabinet (1) close to the variable frequency compressor (101); an exhaust pipe (2) is fixedly connected between the outlet end of the variable frequency compressor (101) and the inlet end of the microchannel condenser (3); a side frame (4) is fixedly installed on the side of the cabinet (1); a plurality of turbo fans (401) are fixedly installed at intervals on a side of the side frame (4) close to the microchannel condenser (3); the outlet end of the microchannel condenser (3) is fixedly connected to a liquid storage filter (6) via a liquid outlet pipe a (5); the outlet end of the liquid storage filter (6) is fixedly connected to an electronic throttling expansion valve (7) via a refrigerant conduit a (601); The outlet end of the electronic throttling expansion valve (7) is fixedly connected to a plate heat exchanger (8) via a refrigerant conduit b (701); the refrigerant outlet end of the plate heat exchanger (8) is fixedly connected to the inlet end of the variable frequency compressor (101) via a refrigerant conduit c (9); a water side water pump (11) is fixedly installed on the other side of the cabinet (1) near the variable frequency compressor (101); the inlet end of the water side water pump (11) is fixedly connected to the antifreeze outlet end of the air conditioning water side system (16) via a water pipe a (10); the outlet end of the water side water pump (11) is fixedly connected to a PTC heater (12) via a water pipe b (14); and the antifreeze inlet end of the plate heat exchanger (8) is fixedly connected to the outlet end of the PTC heater (12) via a water pipe c (17).

2. A thermal management device for an energy storage air conditioner according to claim 1, characterized in that: The antifreeze liquid outlet end of the plate heat exchanger (8) is fixedly connected to a liquid outlet pipe b (13), and a liquid outlet joint (131) is fixedly provided at the end of the liquid outlet pipe b (13).

3. The thermal management device of the energy storage air conditioner according to claim 1, characterized in that: One end of the water pipe a (10) is fixedly connected to a liquid return pipe (15), and a liquid inlet joint (151) is fixedly provided at the end of the liquid return pipe (15).

4. The thermal management device of the energy storage air conditioner according to claim 1, characterized in that: The number of the turbo fans (401) is three, and the turbo fans (401) are arranged in the side frame (4) at equal intervals and distributed longitudinally.

5. The thermal management device of the energy storage air conditioner according to claim 1, characterized in that: A front handle (102) is fixedly connected to the front side of the cabinet (1), and a rear handle (402) is fixedly connected to the back side of the side frame (4).

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