CN-116625053-B - Defrosting device and defrosting method for water pan and heat pump system

CN116625053BCN 116625053 BCN116625053 BCN 116625053BCN-116625053-B

Abstract

The application relates to the technical field of heat pumps, and particularly discloses an antifreezing device and method for a water receiving disc and a heat pump system, wherein the device comprises a first heat exchange component, a second heat exchange component and a second heat exchange component, wherein the first heat exchange component comprises a first heat pipe condenser, a first refrigerant input pipeline, a first heat pipe evaporator and a first refrigerant output pipeline; the second heat exchange assembly comprises a second heat pipe condenser, a second refrigerant input pipeline, a second heat pipe evaporator and a second refrigerant output pipeline, wherein the second heat pipe condenser is used for being in heat exchange connection with a second water receiving disc, the second heat pipe evaporator is used for being in heat exchange connection with a second control main board, the first distributor is used for distributing the flow of refrigerant medium flowing to the first heat pipe condenser and the second heat pipe condenser, and the second distributor is used for distributing the flow of refrigerant medium flowing to the first heat pipe evaporator and the second heat pipe evaporator. The defrosting device for the defrosting pan has the advantages of good defrosting effect on the defrosting pan, energy conservation and environmental protection.

Inventors

Zhang Cantong
LIU YUANHUI
LEI PENGFEI
ZHANG LI
HE WEIGUO
LIU ZHIPENG

Assignees

广东芬尼克兹节能设备有限公司
安徽芬尼节能设备有限责任公司

Dates

Publication Date: 20260508
Application Date: 20230519

Claims (10)

1. A defrosting device for a water pan, comprising: the first heat exchange assembly (1) comprises a first heat pipe condenser (11), a first refrigerant input pipeline (12), a first heat pipe evaporator (13) and a first refrigerant output pipeline (14), wherein the first heat pipe condenser (11) and the first heat pipe evaporator (13) are connected with the first refrigerant output pipeline (14) through the first refrigerant input pipeline (12), the first heat pipe condenser (11) is used for heat exchange connection with a first water receiving disc (81) of a first unit (8), and the first heat pipe evaporator (13) is used for heat exchange connection with a first control main board (82) of the first unit (8); the second heat exchange assembly (2) comprises a second heat pipe condenser (21), a second refrigerant input pipeline (22), a second heat pipe evaporator (23) and a second refrigerant output pipeline (24), wherein the second heat pipe condenser (21) and the second heat pipe evaporator (23) are connected with the second refrigerant output pipeline (24) through the second refrigerant input pipeline (22), the second heat pipe condenser (21) is used for heat exchange connection with a second water receiving disc (91) of a second unit (9), and the second heat pipe evaporator (23) is used for heat exchange connection with a second control main board (92) of the second unit (9); a first distributor (31) connected to the first refrigerant input pipeline (12) and the second refrigerant input pipeline (22) for distributing the flow rate of the refrigerant medium flowing to the first heat pipe condenser (11) and the second heat pipe condenser (21); and a second distributor (32) connected to the first refrigerant output pipeline (14) and the second refrigerant output pipeline (24) and used for distributing the flow rate of the refrigerant medium flowing to the first heat pipe evaporator (13) and the second heat pipe evaporator (23).
2. The defrosting device of claim 1, further comprising: a controller (4) communicatively coupled to the first dispenser (31) and the second dispenser (32); the first acquisition module (41) is in communication connection with the controller (4) and the first unit (8), and the first acquisition module (41) is used for acquiring the operation information of the first unit (8); the second acquisition module (42) is in communication connection with the controller (4) and the second unit (9), and the second acquisition module (42) is used for acquiring the operation information of the second unit (9).
3. The defrosting device according to claim 1, characterized in that the first distributor (31) and the second distributor (32) are flow valves (300), the flow valves (300) having a connected distribution chamber (301) and two output ends (302), the first refrigerant inlet line (12) having a first refrigerant inlet sub-line (121) connected to the first heat pipe condenser (11), the second refrigerant inlet line (22) having a second refrigerant inlet sub-line (221) connected to the second heat pipe condenser (21), the first refrigerant outlet line (14) having a first refrigerant outlet sub-line (141) connected to the first heat pipe evaporator (13), the second refrigerant outlet line (24) having a second refrigerant outlet sub-line (241) connected to the second heat pipe evaporator (23); The distribution cavity (301) of the first distributor (31) is connected with the first refrigerant input pipeline (12) and the second refrigerant input pipeline (22) at the same time, and two output ends (302) of the first distributor (31) are respectively connected with the first refrigerant input sub-pipeline (121) and the second refrigerant input sub-pipeline (221); The distribution cavity (301) of the second distributor (32) is connected with the first refrigerant output pipeline (14) and the second refrigerant output pipeline (24) at the same time, and two output ends (302) of the second distributor (32) are respectively connected with the first refrigerant output sub-pipeline (141) and the second refrigerant output sub-pipeline (241).
4. The defrosting device according to claim 1, characterized in that at least one of the first heat pipe condenser (11) and the first defrosting pan (81), the second heat pipe condenser (21) and the second defrosting pan (91), the first heat pipe evaporator (13) and the first control motherboard (82) and the second heat pipe evaporator (23) and the second control motherboard (92) is provided with a heat conducting layer (5).
5. The defrosting device of claim 1, further comprising: The base (6) is provided with a first installation surface and a second installation surface which are opposite, wherein the first installation surface is used for fixing a first control main board (82) or a second control main board (92), and the second installation surface is used for connecting the first heat pipe evaporator (13) or the second heat pipe evaporator (23).
6. The defrosting device according to claim 1, characterized in that the first heat pipe condenser (11), the second heat pipe condenser (21), the first heat pipe evaporator (13) and the second heat pipe evaporator (23) are microchannel heat exchangers (7), the microchannel heat exchangers (7) are provided with communicated refrigerant inlets (71), heat pipe channels (72) and refrigerant outlets (73), the refrigerant inlets (71) are connected with the first refrigerant input pipeline (12) or the second refrigerant input pipeline (22), and the refrigerant outlets (73) are connected with the first refrigerant output pipeline (14) or the second refrigerant output pipeline (24).
7. A heat pump system having the defrosting device of any one of claims 1 to 6, comprising: The first unit (8) comprises a first water receiving disc (81) and a first control main board (82), a first heat pipe condenser (11) of the water receiving disc antifreezing device is connected to the first water receiving disc (81), and a first heat pipe evaporator (13) of the water receiving disc antifreezing device is connected to the first control main board (82); the second unit (9) comprises a second water receiving disc (91) and a second control main board (92), a second heat pipe condenser (21) of the water receiving disc antifreezing device is connected to the second water receiving disc (91), and a second heat pipe evaporator (23) of the water receiving disc antifreezing device is connected to the second control main board.
8. A method of antifreeze of a water tray, applied to the antifreeze apparatus of a water tray as claimed in any one of claims 1 to 6, the method comprising: acquiring operation information of a first unit (8) and a second unit (9), and judging whether the first unit (8) and the second unit (9) are in a defrosting state according to the operation information; When the first unit (8) is in a defrosting state and the second unit (9) is in a non-defrosting state, the flow rate of the medium flowing to the first heat pipe condenser (11) in the first refrigerant input pipeline (12) is increased through the first distributor (31) and the flow rate of the medium flowing to the second heat pipe condenser (21) in the second refrigerant input pipeline (22) is reduced, the flow rate of the medium flowing to the first heat pipe evaporator (13) in the first refrigerant output pipeline (14) is increased through the second distributor (32) and the flow rate of the medium flowing to the second heat pipe evaporator (23) in the second refrigerant output pipeline (24) is reduced; When the first unit (8) is in a non-defrosting state and the second unit (9) is in a defrosting state, the flow rate of the medium flowing to the first heat pipe condenser (11) in the first refrigerant input pipeline (12) is reduced and the flow rate of the medium flowing to the second heat pipe condenser (21) in the second refrigerant input pipeline (22) is increased through the first distributor (31), the flow rate of the medium flowing to the first heat pipe evaporator (13) in the first refrigerant output pipeline (14) is reduced and the flow rate of the medium flowing to the second heat pipe evaporator (23) in the second refrigerant output pipeline (24) is increased through the second distributor (32).
9. The method of antifreeze of a water tray of claim 8, further comprising: When the first unit (8) and the second unit (9) are in a non-defrosting state, the flow of the refrigerant medium in the first refrigerant input pipeline (12) and the second refrigerant input pipeline (22) is uniformly distributed through the first distributor (31), and the flow of the refrigerant medium in the first refrigerant output pipeline (14) and the second refrigerant output pipeline (24) is uniformly distributed through the second distributor (32).
10. A heat pump system applying the defrosting method of any one of claims 8 to 9, comprising: the acquisition module (101) is used for acquiring the operation information of the first unit (8) and the second unit (9); the judging module (102) is used for judging whether the first unit (8) and the second unit (9) are in a defrosting state according to the operation information; The execution module (103) is used for increasing the flow rate of the refrigerant flowing to the first heat pipe condenser (11) in the first refrigerant input pipeline (12) and reducing the flow rate of the refrigerant flowing to the second heat pipe condenser (21) in the second refrigerant input pipeline (22) through the first distributor (31) when the first unit (8) is in a defrosting state and the second unit (9) is in a non-defrosting state, and increasing the flow rate of the refrigerant flowing to the first heat pipe evaporator (13) in the first refrigerant output pipeline (14) and reducing the flow rate of the refrigerant flowing to the second heat pipe evaporator (23) in the second refrigerant output pipeline (24) through the second distributor (32); The execution module (103) is further configured to, when the first unit (8) is in a non-defrost state and the second unit (9) is in a defrost state, reduce a flow of the refrigerant flowing into the first heat pipe condenser (11) in the first refrigerant input pipeline (12) and increase a flow of the refrigerant flowing into the second heat pipe condenser (21) in the second refrigerant input pipeline (22) by using the first distributor (31), reduce a flow of the refrigerant flowing into the first heat pipe evaporator (13) in the first refrigerant output pipeline (14) and increase a flow of the refrigerant flowing into the second heat pipe evaporator (23) in the second refrigerant output pipeline (24) by using the second distributor (32).

Description

Defrosting device and defrosting method for water pan and heat pump system Technical Field The application relates to the technical field of heat pumps, in particular to an antifreezing device and method for a water pan and a heat pump system. Background At present, heat is generally absorbed through an air heat exchanger (evaporator) when the heat pump unit heats in a low-temperature environment, so that frosting is often generated on the surface of the air heat exchanger. In order to ensure the heating efficiency, the heat pump unit is generally switched to a defrosting mode, and defrosting water generated by defrosting is collected and discharged through a water receiving disc positioned at the bottom of the air heat exchanger. However, in the actual defrosting process, the temperature of the defrosting water reaching the water receiving disc is close to the freezing point, and the defrosting water is easy to freeze, so that ice blockage is caused, the unit defrosting is not thorough, and the heating capacity and heating efficiency of the heat pump unit are seriously affected. In order to solve the problem of icing of the water pan, an electric heater is generally arranged on the water pan, and electric energy is converted into heat energy to heat defrosting water and ice crystals to a temperature above the freezing point, so that the defrosting water is prevented from icing. However, the defrosting scheme of the water pan in the prior art needs the heat pump unit to consume extra electric energy to provide heat, so that the heat pump unit has the defects of low heating efficiency and increased cost. Meanwhile, for the double heat pump units provided with two water receiving discs, when one heat pump unit is in a heating mode, the other heat pump unit is in a defrosting mode, and the condensation water amounts of the air heat exchangers are different under different working modes, so that the electric heater started at the same time is easy to dry-heat and overheat on one water receiving disc, and the electric heater is easy to age after being exposed in the air for a long time, so that conductors in the electric heater are also easy to directly contact with defrosting water to cause the danger of electric leakage. Disclosure of Invention The embodiment of the invention aims to provide an antifreezing device and an antifreezing method for a water receiving disc and a heat pump system, which can solve the problem that in the prior art, heating efficiency of a heat pump unit is reduced due to the fact that an electric heater is used for heating the water receiving disc. In order to achieve the above purpose, the application adopts the following technical scheme: In a first aspect, there is provided a defrosting device for a water tray, comprising: The first heat exchange assembly comprises a first heat pipe condenser, a first refrigerant input pipeline, a first heat pipe evaporator and a first refrigerant output pipeline, wherein the first heat pipe condenser is connected with the first heat pipe evaporator through the first refrigerant input pipeline and the first refrigerant output pipeline, the first heat pipe condenser is used for being in heat exchange connection with a first water receiving disc of a first unit, and the first heat pipe evaporator is used for being in heat exchange connection with a first control main board of the first unit; The second heat exchange assembly comprises a second heat pipe condenser, a second refrigerant input pipeline, a second heat pipe evaporator and a second refrigerant output pipeline, wherein the second heat pipe condenser is connected with the second heat pipe evaporator through the second refrigerant input pipeline and the second refrigerant output pipeline, the second heat pipe condenser is used for being in heat exchange connection with a second water receiving disc of a second unit, and the second heat pipe evaporator is used for being in heat exchange connection with a second control main board of the second unit; The first distributor is connected with the first refrigerant input pipeline and the second refrigerant input pipeline and is used for distributing the flow of refrigerant medium flowing to the first heat pipe condenser and the second heat pipe condenser; The second distributor is connected with the first refrigerant output pipeline and the second refrigerant output pipeline and is used for distributing the flow of the refrigerant medium flowing to the first heat pipe evaporator and the second heat pipe evaporator. As a preferable scheme of the defrosting device of the water pan, the defrosting device further comprises: A controller communicatively coupled to the first dispenser and the second dispenser; the first acquisition module is in communication connection with the controller and the first unit and is used for acquiring the operation information of the first unit; the second acquisition module is in communication connection with the controll