Sleeve type heat storage device and air conditioner thereof

Abstract

The utility model relates to the technical field of air conditioners, and provides a sleeve type heat storage device and an air conditioner thereof, which are characterized in that the sleeve type heat storage device comprises an outer sleeve 44 and an inner sleeve 42 coaxially arranged in the outer sleeve 44, and the outer sleeve 44 and the inner sleeve 42 are coiled together to form a spiral structure; one end of the inner sleeve 42 is provided with a sealing plug 49, the other end of the inner sleeve 42 is connected with a safety valve 41, and the sealing plug 49 and the safety valve 41 enable the interior of the inner sleeve 42 to form a sealed heat storage medium storage space 48; a refrigerant space 47 is formed between the outer sleeve 44 and the inner sleeve 42. According to the sleeve type heat storage device and the air conditioner thereof, heat absorbed from the indoor side can be reduced during defrosting operation of the air conditioner of a heat pump air conditioning system, the cooling amplitude of the indoor side is reduced, and the comfort of the indoor side is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of air conditioning, in particular to a sleeve-type heat storage device and an air conditioner thereof. Background Art

[0002] Heat pump air conditioning units generally include compressors, four-way valves, condensers, throttling devices, evaporators and other functional components;

[0003] The air conditioning unit realizes the cooling or heating function of the air conditioning through the switching of the four-way valve. When the air conditioning is running the heating function, the low-temperature refrigerant needs to absorb heat from the outdoor condenser. When the outdoor temperature is relatively low and reaches a certain condition, the outdoor condenser will frost. As the thickness of the frost layer gradually increases, it gradually blocks the outdoor condenser from absorbing heat from the outdoor air, seriously affecting the heating effect. At this time, the outdoor condenser needs to be defrosted;

[0004] The existing defrosting method is that when the defrosting conditions are met, the indoor and outdoor fans are stopped, the four-way valve is reversed, and the high-temperature refrigerant exhausted from the compressor flows into the outdoor condenser, releases heat and melts the frost layer on the surface of the condenser. During the defrosting operation, the heating on the indoor side stops. On the contrary, due to the heat exchange of the refrigerant, the low-temperature refrigerant will flow into the indoor side and needs to absorb heat from the indoor side, which will cause the indoor temperature to drop significantly and affect the indoor comfort. However, frosting of the outdoor condenser of a general air conditioner is basically inevitable. When the frost reaches a certain degree, it must be defrosted. Defrosting will cause the indoor temperature to drop instead of rise. The temperature drop will affect the comfort, thus forming a contradiction between defrosting and comfort. Utility Model Content

[0005] The utility model provides a sleeve-type heat storage device and an air conditioner thereof, the main purpose of which is to solve the problem of indoor temperature reduction caused by defrosting of the air conditioner.

[0006] To achieve the above object, the utility model provides a sleeve-type heat storage device, comprising:

[0007] An outer sleeve and an inner sleeve coaxially arranged inside the outer sleeve, wherein the outer sleeve and the inner sleeve are spirally wound together to form a spiral structure;

[0008] The number of inner sleeves can be one group or multiple groups, and multiple groups of inner sleeves can be arranged in parallel to achieve the same function;

[0009] The material of the inner casing is preferably copper tube, which can ensure good heat transfer and the elasticity required by the thermal expansion and contraction of the heat storage medium;

[0010] A sealing plug is provided at one end of the inner sleeve, and a safety valve is connected to the other end of the inner sleeve;

[0011] The sealing plug and the safety valve enable the interior of the inner sleeve to form a sealed heat storage medium storage space;

[0012] The heat storage medium storage space is used to store the heat storage medium. The heat storage medium is not limited to a specific location, type and form. Any material that can achieve heat exchange, store heat, and complete the transfer of heat between the heat storage medium and the refrigerant through conduction is within the scope of the requirements of this case;

[0013] A refrigerant space is formed between the outer sleeve and the inner sleeve.

[0014] As a further improvement of the present invention, the surface of the outer sleeve is wrapped with an external thermal insulation structure, and the external thermal insulation structure is used for thermal insulation of the heat storage device.

[0015] As a further improvement of the utility model, one end of the outer sleeve is connected to a refrigerant inlet pipe, and the other end of the outer sleeve is connected to a refrigerant outlet pipe.

[0016] As a further improvement of the utility model, the refrigerant inlet pipe and the refrigerant outlet pipe are both connected to the refrigerant space;

[0017] The refrigerant space is connected to a refrigeration circuit through the refrigerant inlet pipe and the refrigerant outlet pipe.

[0018] As a further improvement of the present invention, the safety valve is used to ensure the safety of the operating pressure of the heat storage device.

[0019] When the refrigeration circuit is heating, the throttling mechanism of the heat storage module is opened, and the high-temperature refrigerant flows into the refrigerant space, and heats the heat storage medium inside the heat storage medium storage space through heat conduction of the inner sleeve. The heat storage medium absorbs and stores heat. After the heat storage medium is heated to the set temperature, the throttling mechanism of the heat storage module is closed, and the heat storage device is in a dormant state for the refrigeration circuit.

[0020] An air conditioner based on a sleeve-type heat storage device, comprising:

[0021] Compressor, four-way valve, condenser, shell-and-tube heat exchanger heat storage module and indoor unit;

[0022] The heat storage module of the shell-and-tube heat exchanger includes a heat storage module throttling mechanism, and the heat storage module throttling mechanism is installed at one end of the refrigerant outlet pipe;

[0023] The heat storage module throttling mechanism is used to control the refrigerant flow rate flowing through the heat storage module of the shell-and-tube heat exchanger;

[0024] The indoor unit includes an indoor evaporator and an indoor throttling mechanism.

[0025] As a further improvement of the utility model, the compressor is connected to the D interface and the S interface of the four-way valve through a pipeline.

[0026] As a further improvement of the utility model, one end of the condenser is connected to the C interface of the four-way valve, and the other end of the condenser is connected to a refrigeration circuit throttling mechanism;

[0027] The side of the refrigeration circuit throttling mechanism away from the condenser is divided into two ends through a three-way connection, one end is connected to the heat storage module throttling mechanism, and the other end is connected to the indoor unit throttling mechanism.

[0028] As a further improvement of the utility model, the indoor throttling mechanism is connected to the indoor evaporator.

[0029] As a further improvement of the utility model, the end of the indoor evaporator away from the indoor throttling mechanism is divided into two ends by a three-way connection, one end is connected to the refrigerant inlet pipe, and the other end is connected to the E interface of the four-way valve.

[0030] When the refrigeration circuit needs to be defrosted, under the reversing control of the four-way valve in the refrigeration circuit, the throttling mechanism of the indoor unit is closed, and the throttling mechanism of the heat storage module is opened, so that most of the low-temperature refrigerant flows into the refrigerant space, and absorbs the heat of the heat storage medium in the heat storage medium storage space through the heat conduction of the inner sleeve. After absorbing the heat, the refrigerant is converted from liquid to gas and then returns to the compressor;

[0031] In this way, when the air-conditioning system defrosts, the heat absorbed from the room will be greatly reduced, the degree of indoor cooling will be reduced, and thus the indoor comfort will be improved.

[0032] The technical problems solved by the utility model are:

[0033] Solve the problem that the air conditioner needs to absorb heat from the room when defrosting, causing the indoor temperature to drop.

[0034] The beneficial effects of the utility model are:

[0035] The utility model provides a shell-and-tube heat exchanger heat storage module. During the heating operation of the air conditioner, a high-temperature and high-pressure refrigerant is divided into a branch to flow into the refrigerant space and release heat. The released heat is absorbed and stored by the heat storage medium inside the heat storage medium storage space.

[0036] When the air conditioning refrigeration circuit needs to be defrosted, under the reversing control of the four-way valve, and in coordination with the opening and closing of the throttling mechanism of the heat storage module and the throttling mechanism of the indoor unit, most of the low-temperature refrigerant flows into the refrigerant space and absorbs the heat stored in the heat storage medium in the heat storage medium storage space, so that the refrigerant is converted from liquid to gas and then returns to the compressor. In this way, when the air conditioning system is defrosted, the heat absorbed from the indoor side is greatly reduced, the temperature drop on the indoor side is reduced, and the comfort on the indoor side is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] Hereinafter, the present application will be described in more detail based on embodiments and with reference to the accompanying drawings.

[0038] Figure 1 This is a schematic diagram of the overall structure of the heat storage module in the embodiment of the utility model;

[0039] Figure 2 yes Figure 1 A schematic cross-sectional view of the inner casing and the outer casing;

[0040] Figure 3 It is a working principle diagram of the air conditioning unit in the embodiment of the utility model.

[0041] Reference numerals:

[0042] Compressor 1;

[0043] Four-way valve 2;

[0044] Condenser 3;

[0045] The shell and tube heat exchanger heat storage module 4, the safety valve 41, the inner shell 42, the refrigerant inlet pipe 43, the outer shell 44, the heat storage module throttling mechanism 45, the refrigerant outlet pipe 46, the refrigerant space 47, the heat storage medium storage space 48, and the sealing plug 49;

[0046] The internal machine 5, the internal machine evaporator 51, and the internal machine throttling mechanism 52;

[0047] Refrigeration circuit throttling mechanism 6.

[0048] In the drawings, the same reference numerals are used for the same components and the drawings are not drawn to scale. DETAILED DESCRIPTION

[0049] In order to make the purpose, technical solutions and advantages of the present application clearer, the present application will be further described in detail below in conjunction with the accompanying drawings. The described embodiments should not be regarded as limiting the present application. All other embodiments obtained by ordinary technicians in the field without making creative work are within the scope of protection of this application.

[0050] In the following description, reference is made to “some embodiments”, which describe a subset of all possible embodiments, but it will be understood that “some embodiments” may be the same subset or different subsets of all possible embodiments and may be combined with each other without conflict.

[0051] If similar descriptions of "first\second\third" appear in the application documents, the following instructions are added. In the following description, the terms "first\second\third" involved are merely used to distinguish similar objects and do not represent a specific ordering of the objects. It can be understood that "first\second\third" can be interchanged in a specific order or sequence where permitted, so that the embodiments of the present application described herein can be implemented in an order other than that illustrated or described herein.

[0052] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art to which this application belongs. The terms used herein are only for the purpose of describing the embodiments of this application and are not intended to limit this application.

[0053] The embodiment of the present application provides a tube-in-tube heat storage device and an air conditioner thereof. The tube-in-tube heat storage device and the air conditioner thereof,

[0054] The invention can solve the problem that the blast-type fully premixed household gas stove is easy to flame out and difficult to ignite in a cold state, and ensure that the ignition success rate and toxic combustion products meet the requirements in the state of sitting on the pot or without the pot.

[0055] Embodiment 1:

[0056] Reference Figure 1 , 2 As shown, a casing-type heat storage device is provided for an embodiment of the utility model. In this embodiment, the casing-type heat storage device comprises:

[0057] Inner sleeve 42; outer sleeve 44;

[0058] Reference Figure 1 As shown, Figure 1 It is an overall schematic diagram of the sleeve-type heat storage device of the utility model;

[0059] Reference Figure 2 As shown, Figure 2 A cross-sectional schematic diagram summarizing the inner sleeve and the outer sleeve of the sleeve-type heat storage device of the utility model;

[0060] Specifically, a sealing plug 49 is provided at one end of the inner sleeve 42, and a safety valve 41 is connected to the other end of the inner sleeve 42. The sealing plug 49 and the safety valve 41 form a sealed heat storage medium storage space 48 inside the inner sleeve 42.

[0061] The heat storage medium storage space 48 is used to store the heat storage medium. The heat storage medium is encapsulated in the heat storage medium storage space. The heat storage medium is not limited to a specific location, type and form. Any material that can achieve heat exchange, store heat, and complete heat transfer between the heat storage medium and the refrigerant through conduction is within the scope of the requirements of this case.

[0062] The safety valve 41 is used to ensure the safety of the operating pressure of the heat storage device.

[0063] The outer sleeve 44 is coaxially arranged with the inner sleeve 42, and the outer sleeve 44 and the inner sleeve 42 are spirally wound together to form a spiral structure;

[0064] The inner sleeve 42 is disposed in the hollow space of the outer sleeve 44;

[0065] The number of the inner sleeves 42 can be one group or multiple groups, and multiple groups of inner sleeves 42 arranged in parallel can also achieve the same function;

[0066] The material of the inner sleeve 42 is preferably a copper tube, which can ensure good heat transfer and the elasticity required by the thermal expansion and contraction of the heat storage medium;

[0067] The surface of the outer sleeve 44 is wrapped with an external heat-insulating structure, and the external heat-insulating structure is used for heat preservation of the heat storage device;

[0068] A refrigerant space 47 is formed between the outer sleeve 44 and the inner sleeve 42;

[0069] One end of the outer sleeve 44 is connected to a refrigerant inlet pipe 43 , and the other end of the outer sleeve 44 is connected to a refrigerant outlet pipe 46 .

[0070] The refrigerant inlet pipe 43 and the refrigerant outlet pipe 46 are both in communication with the refrigerant space 47 .

[0071] The refrigerant space 47 is connected to the refrigeration circuit through the refrigerant inlet pipe 43 and the refrigerant outlet pipe 46 .

[0072] Embodiment 2:

[0073] Reference Figure 1-Figure 3 As shown, an embodiment of the utility model provides an air conditioner based on a sleeve-type heat storage device, comprising:

[0074] Compressor 1; four-way valve 2; condenser 3; shell-and-tube heat exchanger heat storage module 4; indoor unit 5;

[0075] Reference Figure 1 As shown, Figure 1 It is an overall schematic diagram of the sleeve-type heat storage device of the utility model;

[0076] Reference Figure 2 As shown, Figure 2 A cross-sectional schematic diagram summarizing the inner sleeve and the outer sleeve of the sleeve-type heat storage device of the utility model;

[0077] Reference Figure 3 As shown, Figure 3 This is a working principle diagram of an air conditioner based on a sleeve-type heat storage device shown in the utility model;

[0078] Specifically, the compressor 1 is connected to the D interface and the S interface of the four-way valve 2 through a pipeline;

[0079] One end of the condenser 3 is connected to the C interface of the four-way valve 2, and the other end of the condenser 3 is connected to the refrigeration circuit throttling mechanism 6;

[0080] The side of the refrigeration circuit throttling mechanism 6 away from the condenser 3 is divided into two ends through a three-way connection, one end is connected to the heat storage module throttling mechanism 45, and the other end is connected to the indoor unit throttling mechanism 52;

[0081] The indoor unit throttling mechanism 52 is connected to the indoor unit evaporator 51;

[0082] One end of the indoor evaporator 51 away from the indoor throttling mechanism 52 is divided into two ends by a three-way connection, one end is connected to the refrigerant inlet pipe 43, and the other end is connected to the E interface of the four-way valve 2;

[0083] The shell-and-tube heat exchanger heat storage module 4 includes a heat storage module throttling mechanism 45, and the heat storage module throttling mechanism 45 is connected in series with the refrigerant outlet pipe 46;

[0084] The heat storage module throttling mechanism 45 is used to control the refrigerant flow rate flowing through the heat storage module 4 of the shell-and-tube heat exchanger;

[0085] The internal machine 5 includes an internal machine evaporator 51 and an internal machine throttling mechanism 52;

[0086] A sealing plug 49 is provided at one end of the inner sleeve 42, and a safety valve 41 is connected to the other end of the inner sleeve 42. The sealing plug 49 and the safety valve 41 form a sealed heat storage medium storage space 48 inside the inner sleeve 42.

[0087] The heat storage medium storage space 48 is used to store the heat storage medium. The heat storage medium is not limited to a specific location, type and form. Any material that can achieve heat exchange, store heat, and complete the transfer of heat between the heat storage medium and the refrigerant through conduction is within the scope of the requirements of this case.

[0088] The safety valve 41 is used to ensure the safety of the operating pressure of the heat storage device.

[0089] The outer sleeve 44 is coaxially arranged with the inner sleeve 42, and the outer sleeve 44 and the inner sleeve 42 are spirally wound together to form a spiral structure;

[0090] The inner sleeve 42 is disposed in the hollow space of the outer sleeve 44;

[0091] The number of the inner sleeves 42 can be one group or multiple groups. Multiple groups of inner sleeves 42 arranged in parallel can also achieve the above functions.

[0092] The material of the inner sleeve 42 is preferably a copper tube, which can ensure good heat transfer and the elasticity required by the thermal expansion and contraction of the heat storage medium;

[0093] The surface of the outer sleeve 44 is wrapped with an external heat-insulating structure, and the external heat-insulating structure is used for heat preservation of the heat storage device;

[0094] A refrigerant space 47 is formed between the outer sleeve 44 and the inner sleeve 42;

[0095] One end of the outer sleeve 44 is connected to a refrigerant inlet pipe 43 , and the other end of the outer sleeve 44 is connected to a refrigerant outlet pipe 46 .

[0096] The refrigerant inlet pipe 43 and the refrigerant outlet pipe 46 are both in communication with the refrigerant space 47 .

[0097] The refrigerant space 47 is connected to the refrigeration circuit through the refrigerant inlet pipe 43 and the refrigerant outlet pipe 46;

[0098] When the refrigeration circuit is heating, the throttling mechanism 45 of the heat storage module is opened, and the high-temperature refrigerant flows into the refrigerant space 47, and heats the heat storage medium inside the heat storage medium storage space 48 through the heat conduction of the inner sleeve 42. The heat storage medium absorbs heat and stores it. After the heat storage medium is heated to the set temperature, the throttling mechanism 45 of the heat storage module is closed, and the heat storage device is in a dormant state for the refrigeration circuit;

[0099] When the refrigeration circuit needs to be defrosted, under the reversing control of the four-way valve 2 in the refrigeration circuit, the indoor unit throttling mechanism 52 is closed, and the heat storage module throttling mechanism 45 is opened, so that most of the low-temperature refrigerant flows into the refrigerant space 47, and absorbs the heat of the heat storage medium in the heat storage medium storage space 48 through the heat conduction of the inner sleeve 42. After absorbing the heat, the refrigerant is converted from liquid to gas and then returns to the compressor 1;

[0100] In this way, when the air-conditioning system defrosts, the heat absorbed from the room will be greatly reduced, the degree of indoor cooling will be reduced, and thus the indoor comfort will be improved.

[0101] Embodiment three:

[0102] Reference Figure 3 As shown, the present utility model provides a refrigeration working mode of an air conditioner based on a sleeve-type heat storage device:

[0103] The compressor 1 is connected to the D interface and the S interface of the four-way valve 2 through a pipeline;

[0104] One end of the condenser 3 is connected to the C interface of the four-way valve 2, and the other end of the condenser 3 is connected to the refrigeration circuit throttling mechanism 6. The side of the refrigeration circuit throttling mechanism 6 away from the condenser 3 is divided into two ends through a three-way connection, one end is connected to the heat storage module throttling mechanism 45, and the other end is connected to the indoor unit throttling mechanism 52;

[0105] The indoor unit throttling mechanism 52 is connected to the indoor unit evaporator 51;

[0106] One end of the indoor evaporator 51 away from the indoor throttling mechanism 52 is divided into two ends by a three-way connection, one end is connected to the refrigerant inlet pipe 43, and the other end is connected to the E interface of the four-way valve 2;

[0107] The shell-and-tube heat exchanger heat storage module 4 includes a heat storage module throttling mechanism 45, which is connected in series with the refrigerant outlet pipe 46, and the heat storage module throttling mechanism 45 is used to control the refrigerant flow rate flowing through the shell-and-tube heat exchanger heat storage module 4;

[0108] The internal machine 5 includes an internal machine evaporator 51 and an internal machine throttling mechanism 52;

[0109] A sealing plug 49 is provided at one end of the inner sleeve 42, and a safety valve 41 is connected to the other end of the inner sleeve 42. The sealing plug 49 and the safety valve 41 form a sealed heat storage medium storage space 48 inside the inner sleeve 42.

[0110] The heat storage medium storage space 48 is used to store the heat storage medium. The heat storage medium is not limited to a specific location, type and form. Any material that can achieve heat exchange, store heat, and complete the transfer of heat between the heat storage medium and the refrigerant through conduction is within the scope of the requirements of this case.

[0111] The safety valve 41 is used to ensure the safety of the operating pressure of the heat storage device.

[0112] The outer sleeve 44 is coaxially arranged with the inner sleeve 42, and the outer sleeve 44 and the inner sleeve 42 are spirally wound together to form a spiral structure;

[0113] The inner sleeve 42 is disposed in the hollow space of the outer sleeve 44;

[0114] The number of the inner sleeves 42 can be one group or multiple groups. Multiple groups of inner sleeves 42 arranged in parallel can also achieve the above functions.

[0115] The material of the inner sleeve 42 is preferably a copper tube, which can ensure good heat transfer and the elasticity required by the thermal expansion and contraction of the heat storage medium;

[0116] The surface of the outer sleeve 44 is wrapped with an external heat-insulating structure, and the external heat-insulating structure is used for heat preservation of the heat storage device;

[0117] A refrigerant space 47 is formed between the outer sleeve 44 and the inner sleeve 42;

[0118] One end of the outer sleeve 44 is connected to a refrigerant inlet pipe 43 , and the other end of the outer sleeve 44 is connected to a refrigerant outlet pipe 46 .

[0119] The refrigerant inlet pipe 43 and the refrigerant outlet pipe 46 are both in communication with the refrigerant space 47 .

[0120] The refrigerant space 47 is connected to the refrigeration circuit through the refrigerant inlet pipe 43 and the refrigerant outlet pipe 46;

[0121] When the air conditioning unit is in cooling operation, the C\D and S\E of the four-way valve 2 are logically controlled to be turned on;

[0122] The high-temperature and high-pressure refrigerant compressed by the compressor 1 enters the condenser 3 from the compressor exhaust port through the D\C of the four-way valve 2 to release heat, and then enters the indoor unit 5 through the refrigeration circuit throttling mechanism 6;

[0123] In the indoor unit 5, the heat is absorbed by the indoor unit evaporator 51 through the indoor unit throttling mechanism 52, thereby forming a cooling effect on the indoor side.

[0124] Then the refrigerant returns to the compression suction port of compressor 1 through the E\S port of four-way valve 2, completing the refrigeration cycle;

[0125] During this process, the heat storage module throttling mechanism 45 of the shell-and-tube heat exchanger heat storage module 4 is in a closed state, and the shell-and-tube heat exchanger heat storage module 4 does not participate in the operation of the refrigeration cycle.

[0126] Embodiment 4:

[0127] Reference Figure 3 As shown, the utility model provides a heating working mode of an air conditioner based on a sleeve-type heat storage device:

[0128] The compressor 1 is connected to the D interface and the S interface of the four-way valve 2 through a pipeline;

[0129] One end of the condenser 3 is connected to the C interface of the four-way valve 2, and the other end of the condenser 3 is connected to the refrigeration circuit throttling mechanism 6. The side of the refrigeration circuit throttling mechanism 6 away from the condenser 3 is divided into two ends through a three-way connection, one end is connected to the heat storage module throttling mechanism 45, and the other end is connected to the indoor unit throttling mechanism 52;

[0130] The indoor unit throttling mechanism 52 is connected to the indoor unit evaporator 51;

[0131] One end of the indoor evaporator 51 away from the indoor throttling mechanism 52 is divided into two ends by a three-way connection, one end is connected to the refrigerant inlet pipe 43, and the other end is connected to the E interface of the four-way valve 2;

[0132] The shell-and-tube heat exchanger heat storage module 4 includes a heat storage module throttling mechanism 45, which is connected in series with the refrigerant outlet pipe 46, and the heat storage module throttling mechanism 45 is used to control the refrigerant flow rate flowing through the shell-and-tube heat exchanger heat storage module 4;

[0133] The internal machine 5 includes an internal machine evaporator 51 and an internal machine throttling mechanism 52;

[0134] A sealing plug 49 is provided at one end of the inner sleeve 42, and a safety valve 41 is connected to the other end of the inner sleeve 42. The sealing plug 49 and the safety valve 41 form a sealed heat storage medium storage space 48 inside the inner sleeve 42.

[0135] The heat storage medium storage space 48 is used to store the heat storage medium. The heat storage medium is not limited to a specific location, type and form. Any material that can achieve heat exchange, store heat, and complete the transfer of heat between the heat storage medium and the refrigerant through conduction is within the scope of the requirements of this case.

[0136] The safety valve 41 is used to ensure the safety of the operating pressure of the heat storage device.

[0137] The outer sleeve 44 is coaxially arranged with the inner sleeve 42, and the outer sleeve 44 and the inner sleeve 42 are spirally wound together to form a spiral structure;

[0138] The inner sleeve 42 is disposed in the hollow space of the outer sleeve 44;

[0139] The number of the inner sleeves 42 can be one group or multiple groups. Multiple groups of inner sleeves 42 arranged in parallel can also achieve the above functions.

[0140] The material of the inner sleeve 42 is preferably a copper tube, which can ensure good heat transfer and the elasticity required by the thermal expansion and contraction of the heat storage medium;

[0141] The surface of the outer sleeve 44 is wrapped with an external heat-insulating structure, and the external heat-insulating structure is used for heat preservation of the heat storage device;

[0142] A refrigerant space 47 is formed between the outer sleeve 44 and the inner sleeve 42;

[0143] One end of the outer sleeve 44 is connected to a refrigerant inlet pipe 43 , and the other end of the outer sleeve 44 is connected to a refrigerant outlet pipe 46 .

[0144] The refrigerant inlet pipe 43 and the refrigerant outlet pipe 46 are both in communication with the refrigerant space 47 .

[0145] The refrigerant space 47 is connected to the refrigeration circuit through the refrigerant inlet pipe 43 and the refrigerant outlet pipe 46;

[0146] When the air conditioner is running in heating mode, the logic controls the D\E and S\C of the four-way valve 2 to be turned on;

[0147] The high-temperature and high-pressure refrigerant compressed by the compressor 1 is discharged from the compressor exhaust port and enters the indoor unit 5 through the D\E ports of the four-way valve 2 in sequence;

[0148] In the indoor unit 5, heat is released through the indoor unit evaporator 51, thereby heating the room.

[0149] After releasing heat, the refrigerant enters the condenser 3 after being throttled by the indoor unit throttling mechanism 52 and the refrigeration circuit throttling mechanism 6, absorbs heat in the condenser 3 to complete the conversion from liquid to gas, and then returns to the suction port of the compressor 1 through the C\S port of the four-way valve 2 to complete the heating cycle.

[0150] Embodiment five:

[0151] Reference Figure 3 As shown, the present utility model provides a heat storage method of a sleeve-type heat storage device for an air conditioner based on a sleeve-type heat storage device:

[0152] The compressor 1 is connected to the D interface and the S interface of the four-way valve 2 through a pipeline;

[0153] One end of the condenser 3 is connected to the C interface of the four-way valve 2, and the other end of the condenser 3 is connected to the refrigeration circuit throttling mechanism 6. The side of the refrigeration circuit throttling mechanism 6 away from the condenser 3 is divided into two ends through a three-way connection, one end is connected to the heat storage module throttling mechanism 45, and the other end is connected to the indoor unit throttling mechanism 52;

[0154] The indoor unit throttling mechanism 52 is connected to the indoor unit evaporator 51;

[0155] One end of the indoor evaporator 51 away from the indoor throttling mechanism 52 is divided into two ends by a three-way connection, one end is connected to the refrigerant inlet pipe 43, and the other end is connected to the E interface of the four-way valve 2;

[0156] The shell-and-tube heat exchanger heat storage module 4 includes a heat storage module throttling mechanism 45, which is connected in series with the refrigerant outlet pipe 46, and the heat storage module throttling mechanism 45 is used to control the refrigerant flow rate flowing through the shell-and-tube heat exchanger heat storage module 4;

[0157] The internal machine 5 includes an internal machine evaporator 51 and an internal machine throttling mechanism 52;

[0158] A sealing plug 49 is provided at one end of the inner sleeve 42, and a safety valve 41 is connected to the other end of the inner sleeve 42. The sealing plug 49 and the safety valve 41 form a sealed heat storage medium storage space 48 inside the inner sleeve 42.

[0159] The heat storage medium storage space 48 is used to store the heat storage medium. The heat storage medium is not limited to a specific location, type and form. Any material that can achieve heat exchange, store heat, and complete the transfer of heat between the heat storage medium and the refrigerant through conduction is within the scope of the requirements of this case.

[0160] The safety valve 41 is used to ensure the safety of the operating pressure of the heat storage device.

[0161] The outer sleeve 44 is coaxially arranged with the inner sleeve 42, and the outer sleeve 44 and the inner sleeve 42 are spirally wound together to form a spiral structure;

[0162] The inner sleeve 42 is disposed in the hollow space of the outer sleeve 44;

[0163] The number of the inner sleeves 42 can be one group or multiple groups. Multiple groups of inner sleeves 42 arranged in parallel can also achieve the above functions.

[0164] The material of the inner sleeve 42 is preferably a copper tube, which can ensure good heat transfer and the elasticity required by the thermal expansion and contraction of the heat storage medium;

[0165] The surface of the outer sleeve 44 is wrapped with an external heat-insulating structure, and the external heat-insulating structure is used for heat preservation of the heat storage device;

[0166] A refrigerant space 47 is formed between the outer sleeve 44 and the inner sleeve 42;

[0167] One end of the outer sleeve 44 is connected to a refrigerant inlet pipe 43 , and the other end of the outer sleeve 44 is connected to a refrigerant outlet pipe 46 .

[0168] The refrigerant inlet pipe 43 and the refrigerant outlet pipe 46 are both in communication with the refrigerant space 47 .

[0169] The refrigerant space 47 is connected to the refrigeration circuit through the refrigerant inlet pipe 43 and the refrigerant outlet pipe 46;

[0170] During the heating operation of the air-conditioning unit, the heat storage module throttling mechanism 45 of the heat storage module 4 of the shell-and-tube heat exchanger is logically controlled to open, and the high-temperature and high-pressure refrigerant flowing out of the E port of the four-way valve 2 is divided into a branch route and flows into the refrigerant space 47 through the refrigerant inlet pipe 43, and releases heat inside the refrigerant space 47. The released heat is absorbed by the heat storage medium inside the heat storage medium storage space 48 through the heat conduction of the inner shell 42, and the heat storage medium stores the absorbed heat through phase change and temperature rise;

[0171] The refrigerant after releasing heat then passes through the refrigerant outlet pipe 46 and the heat storage module throttling mechanism 45 and mixes with the refrigerant flowing out of the indoor unit 5 to complete the heating cycle;

[0172] After the heat storage medium is heated to the set temperature, the heat storage module throttling mechanism 45 is logically controlled to be closed to cut off the flow of the refrigerant in the shell-and-tube heat exchanger heat storage module 4, thereby completing the heat storage process of the shell-and-tube heat exchanger heat storage module 4.

[0173] Embodiment six:

[0174] Reference Figure 1-Figure 3 As shown, based on the fifth embodiment, a defrosting method of an air conditioner based on a shell-and-tube heat exchange device is provided for the embodiment of the utility model:

[0175] The compressor 1 is connected to the D interface and the S interface of the four-way valve 2 through a pipeline;

[0176] One end of the condenser 3 is connected to the C interface of the four-way valve 2, and the other end of the condenser 3 is connected to the refrigeration circuit throttling mechanism 6. The side of the refrigeration circuit throttling mechanism 6 away from the condenser 3 is divided into two ends through a three-way connection, one end is connected to the heat storage module throttling mechanism 45, and the other end is connected to the indoor unit throttling mechanism 52;

[0177] The indoor unit throttling mechanism 52 is connected to the indoor unit evaporator 51;

[0178] One end of the indoor evaporator 51 away from the indoor throttling mechanism 52 is divided into two ends by a three-way connection, one end is connected to the refrigerant inlet pipe 43, and the other end is connected to the E interface of the four-way valve 2;

[0179] The shell-and-tube heat exchanger heat storage module 4 includes a heat storage module throttling mechanism 45, which is connected in series with the refrigerant outlet pipe 46, and the heat storage module throttling mechanism 45 is used to control the refrigerant flow rate flowing through the shell-and-tube heat exchanger heat storage module 4;

[0180] The internal machine 5 includes an internal machine evaporator 51 and an internal machine throttling mechanism 52;

[0181] A sealing plug 49 is provided at one end of the inner sleeve 42, and a safety valve 41 is connected to the other end of the inner sleeve 42. The sealing plug 49 and the safety valve 41 form a sealed heat storage medium storage space 48 inside the inner sleeve 42.

[0182] The heat storage medium storage space 48 is used to store the heat storage medium. The heat storage medium is not limited to a specific location, type and form. Any material that can achieve heat exchange, store heat, and complete the transfer of heat between the heat storage medium and the refrigerant through conduction is within the scope of the requirements of this case.

[0183] The safety valve 41 is used to ensure the safety of the operating pressure of the heat storage device.

[0184] The outer sleeve 44 is coaxially arranged with the inner sleeve 42, and the outer sleeve 44 and the inner sleeve 42 are spirally wound together to form a spiral structure;

[0185] The inner sleeve 42 is disposed in the hollow space of the outer sleeve 44;

[0186] The number of the inner sleeves 42 can be one group or multiple groups. Multiple groups of inner sleeves 42 arranged in parallel can also achieve the above functions.

[0187] The material of the inner sleeve 42 is preferably a copper tube, which can ensure good heat transfer and the elasticity required by the thermal expansion and contraction of the heat storage medium;

[0188] The surface of the outer sleeve 44 is wrapped with an external heat-insulating structure, and the external heat-insulating structure is used for heat preservation of the heat storage device;

[0189] A refrigerant space 47 is formed between the outer sleeve 44 and the inner sleeve 42;

[0190] One end of the outer sleeve 44 is connected to a refrigerant inlet pipe 43 , and the other end of the outer sleeve 44 is connected to a refrigerant outlet pipe 46 .

[0191] The refrigerant inlet pipe 43 and the refrigerant outlet pipe 46 are both in communication with the refrigerant space 47 .

[0192] The refrigerant space 47 is connected to the refrigeration circuit through the refrigerant inlet pipe 43 and the refrigerant outlet pipe 46;

[0193] During the heating operation of the air-conditioning unit, the heat storage module throttling mechanism 45 of the heat storage module 4 of the shell-and-tube heat exchanger is logically controlled to open, and the high-temperature and high-pressure refrigerant flowing out of the E port of the four-way valve 2 is divided into a branch route and flows into the refrigerant space 47 through the refrigerant inlet pipe 43, and releases heat inside the refrigerant space 47. The released heat is absorbed by the heat storage medium inside the heat storage medium storage space 48 through the heat conduction of the inner shell 42, and the heat storage medium stores the absorbed heat through phase change and temperature rise;

[0194] The refrigerant after releasing heat then passes through the refrigerant outlet pipe 46 and the heat storage module throttling mechanism 45 and mixes with the refrigerant flowing out of the indoor unit 5 to complete the heating cycle;

[0195] After the heat storage medium is heated to the set temperature, the heat storage module throttling mechanism 45 is closed by logic control to cut off the flow of the refrigerant in the shell-and-tube heat exchanger heat storage module 4, completing the heat storage process of the shell-and-tube heat exchanger heat storage module 4;

[0196] When the refrigeration circuit needs to be defrosted, under the reversing control of the four-way valve 2 in the refrigeration circuit, the indoor unit throttling mechanism 52 is closed, and the heat storage module throttling mechanism 45 is opened, so that most of the low-temperature refrigerant flows into the refrigerant space 47, and absorbs the heat of the heat storage medium in the heat storage medium storage space 48 through the heat conduction of the inner sleeve 42. After absorbing the heat, the refrigerant is converted from liquid to gas and then returns to the compressor 1;

[0197] In this way, when the air-conditioning system defrosts, the heat absorbed from the room will be greatly reduced, the degree of indoor cooling will be reduced, and thus the indoor comfort will be improved.

[0198] Working principle:

[0199] The utility model proposes an air conditioner based on a sleeve-type heat storage device. When the air conditioner is in cooling operation, the C\D and S\E of the four-way valve 2 are logically controlled to be turned on; the high-temperature and high-pressure refrigerant compressed by the compressor 1 enters the condenser 3 from the compressor exhaust port through the D\C of the four-way valve 2 to release heat, and then enters the indoor unit 5 through the refrigeration circuit throttling mechanism 6; in the indoor unit 5, the refrigerant passes through the indoor unit throttling mechanism 52 and absorbs heat on the indoor unit evaporator 51, thereby forming a cooling effect on the indoor side;

[0200] Then the refrigerant returns to the compression suction port of the compressor 1 through the E\S port of the four-way valve 2, completing the refrigeration cycle; during this process, the heat storage module throttling mechanism 45 of the shell-and-tube heat exchanger heat storage module 4 is in a closed state, and the shell-and-tube heat exchanger heat storage module 4 does not participate in the operation of the refrigeration cycle;

[0201] The utility model proposes an air conditioner based on a sleeve-type heat storage device. When the air conditioner is in heating operation, the D\E and S\C of the four-way valve 2 are logically controlled to be turned on; the high-temperature and high-pressure refrigerant compressed by the compressor 1 is discharged from the compressor exhaust port and enters the indoor unit 5 through the D\E ports of the four-way valve 2 in sequence;

[0202] In the indoor unit 5, heat is released through the indoor unit evaporator 51, thereby heating the room.

[0203] After releasing heat, the refrigerant enters the condenser 3 after being throttled by the indoor unit throttling mechanism 52 and the refrigeration circuit throttling mechanism 6, absorbs heat in the condenser 3 to complete the conversion from liquid to gas, and then returns to the suction port of the compressor 1 through the C\S port of the four-way valve 2 to complete the heating cycle;

[0204] During the heating operation of the air-conditioning unit, the heat storage module throttling mechanism 45 of the heat storage module 4 of the shell-and-tube heat exchanger is logically controlled to open, and the high-temperature and high-pressure refrigerant flowing out of the E port of the four-way valve 2 is divided into a branch route and flows into the refrigerant space 47 through the refrigerant inlet pipe 43, and releases heat inside the refrigerant space 47. The released heat is absorbed by the heat storage medium inside the heat storage medium storage space 48 through the heat conduction of the inner shell 42, and the heat storage medium stores the absorbed heat through phase change and temperature rise;

[0205] The refrigerant after releasing heat then passes through the refrigerant outlet pipe 46 and the heat storage module throttling mechanism 45 and mixes with the refrigerant flowing out of the indoor unit 5 to complete the heating cycle;

[0206] After the heat storage medium is heated to the set temperature, the heat storage module throttling mechanism 45 is closed by logic control to cut off the flow of the refrigerant in the shell-and-tube heat exchanger heat storage module 4, completing the heat storage process of the shell-and-tube heat exchanger heat storage module 4;

[0207] When the refrigeration circuit needs to be defrosted, under the reversing control of the four-way valve 2 in the refrigeration circuit, the indoor unit throttling mechanism 52 is closed, and the heat storage module throttling mechanism 45 is opened, so that most of the low-temperature refrigerant flows into the refrigerant space 47, and absorbs the heat of the heat storage medium in the heat storage medium storage space 48 through the heat conduction of the inner sleeve 42. After absorbing the heat, the refrigerant is converted from liquid to gas and then returns to the compressor 1;

[0208] In this way, when the air-conditioning system defrosts, the heat absorbed from the room will be greatly reduced, the degree of indoor cooling will be reduced, and thus the indoor comfort will be improved.

[0209] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate directions or positional relationships based on the attached Figure 1 The orientation or positional relationship shown is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0210] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present utility model, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0211] The above is only a specific implementation of the utility model, but the protection scope of the utility model is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed by the utility model, which should be included in the protection scope of the utility model. Therefore, the protection scope of the utility model should be based on the protection scope of the claims.

Claims

1. A tube-type heat storage device, It is characterized in that include: An outer sleeve and an inner sleeve coaxially arranged inside the outer sleeve, wherein the outer sleeve and the inner sleeve are spirally wound together to form a spiral structure; A sealing plug is provided at one end of the inner sleeve, and a safety valve is connected to the other end of the inner sleeve. The sealing plug and the safety valve form a sealed heat storage medium storage space inside the inner sleeve, and the heat storage medium is encapsulated in the heat storage medium storage space; A refrigerant space is formed between the outer sleeve and the inner sleeve.

2. The tube-in-tube heat storage device according to claim 1, It is characterized in that The surface of the outer sleeve is wrapped with an external thermal insulation structure, and the external thermal insulation structure is used for thermal insulation of the heat storage device.

3. The tube-in-tube heat storage device according to claim 1, It is characterized in that One end of the outer sleeve is connected to a refrigerant inlet pipe, and the other end of the outer sleeve is connected to a refrigerant outlet pipe.

4. The tube-in-tube heat storage device according to claim 3, It is characterized in that The refrigerant inlet pipe and the refrigerant outlet pipe are both in communication with the refrigerant space, and the refrigerant space is connected to a refrigeration circuit through the refrigerant inlet pipe and the refrigerant outlet pipe.

5. An air conditioner based on a tube-type heat storage device, It is characterized in that include: Compressor, four-way valve, condenser, shell-and-tube heat exchanger heat storage module and indoor unit; The shell-and-tube heat exchanger heat storage module comprises a heat storage module throttling mechanism, the heat storage module throttling mechanism is connected in series with the refrigerant outlet pipe, and the heat storage module throttling mechanism is used to control the refrigerant flow rate flowing through the shell-and-tube heat exchanger heat storage module; The indoor unit includes an indoor evaporator and an indoor throttling mechanism.

6. The air conditioner based on the shell-and-tube heat storage device according to claim 5, It is characterized in that The compressor is connected to the D interface and the S interface of the four-way valve through pipelines.

7. The air conditioner based on the double-tube heat storage device according to claim 5, It is characterized in that One end of the condenser is connected to the C interface of the four-way valve, and the other end of the condenser is connected to a refrigeration circuit throttling mechanism. The side of the refrigeration circuit throttling mechanism away from the condenser is divided into two ends by a three-way valve, one end is connected to the heat storage module throttling mechanism, and the other end is connected to the indoor unit throttling mechanism.

8. The air conditioner based on the double-tube heat storage device according to claim 7, It is characterized in that The indoor unit throttling mechanism is connected to the indoor unit evaporator.

9. The air conditioner based on the double-tube heat storage device according to claim 8, It is characterized in that One end of the indoor unit evaporator away from the indoor unit throttling mechanism is divided into two ends through a three-way connection, one end is connected to the refrigerant inlet pipe, and the other end is connected to the E interface of the four-way valve.

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