Air conditioning cooling and storage integrated system and control method

Abstract

The present application relates to an air conditioning cold storage integrated system and a control method, and belongs to the technical field of refrigerant systems. The present application includes: a cold storage refrigerant main circuit; an air conditioning refrigerant main circuit; an energy storage module and a shunt control module, which form a first shunt heat exchange flow path and a second shunt heat exchange flow path, wherein the first shunt heat exchange flow path is used to shunt the cold storage refrigerant from the liquid pipe of the cold storage refrigerant main circuit, so that the shunted cold storage refrigerant is heat exchanged in the energy storage module and then transported to the air pipe of the cold storage refrigerant main circuit, or the cold storage equipment of the cold storage refrigerant main circuit; the second shunt heat exchange flow path is used to shunt the air conditioning refrigerant from the liquid pipe of the air conditioning refrigerant main circuit, so that the shunted air conditioning refrigerant is heat exchanged in the energy storage module and then transported to the air pipe of the air conditioning refrigerant main circuit, or the air conditioning indoor unit of the air conditioning refrigerant main circuit. Through this application, it is helpful to improve the rational use of cooling capacity.

Description

Technical Field

[0001] The present application belongs to the technical field of refrigerant systems, and specifically relates to an air-conditioning refrigeration and storage integrated system and a control method. Background Art

[0002] At present, the refrigeration systems of air conditioners and cold storage equipment (such as refrigerators or freezers) in various types of supermarkets are separate and independent. For two refrigeration systems with high energy consumption, it is easy to have a mismatch between the system output and the required cooling capacity. For example, if the cold storage system outputs sufficient cooling capacity, while the air conditioning system outputs insufficient cooling capacity, the excessive cooling capacity output by the cold storage system becomes a waste and fails to form reasonable utilization. Summary of the invention

[0003] In order to overcome the problems existing in the related art at least to a certain extent, the present application provides an air conditioning cold storage integrated system, which helps to improve the rational use of cold energy.

[0004] To achieve the above objectives, this application adopts the following technical solutions:

[0005] First,

[0006] The present application provides an air conditioning and cooling storage integrated system, comprising:

[0007] Cold storage refrigerant main circuit;

[0008] Air conditioning refrigerant main circuit;

[0009] The energy storage module and the shunt control module form a first shunt heat exchange flow path and a second shunt heat exchange flow path.

[0010] in,

[0011] The first shunt heat exchange flow path is used to shunt the cold storage refrigerant from the liquid pipe of the cold storage refrigerant main circuit, so that the shunt cold storage refrigerant is transported to the gas pipe of the cold storage refrigerant main circuit or the cold storage equipment of the cold storage refrigerant main circuit after heat exchange in the energy storage module;

[0012] The second diversion heat exchange flow path is used to divert the air-conditioning refrigerant from the liquid pipe of the air-conditioning refrigerant main circuit, so that the diverted air-conditioning refrigerant is transported to the air pipe of the air-conditioning refrigerant main circuit or the air-conditioning indoor unit of the air-conditioning refrigerant main circuit after heat exchange in the energy storage module.

[0013] Furthermore, the energy storage module comprises:

[0014] A first heat exchange channel, one end of which is connected to the liquid pipe of the cold storage refrigerant main circuit, and the other end of which is respectively connected to the gas pipe of the cold storage refrigerant main circuit and the cold storage device;

[0015] A second heat exchange channel, one end of which is connected to the liquid pipe of the air conditioning refrigerant main circuit, and the other end of which is respectively connected to the gas pipe of the air conditioning refrigerant main circuit and the air conditioning indoor unit; and

[0016] The energy storage material is distributed around the first heat exchange channel and the second heat exchange channel.

[0017] Furthermore, the energy storage module further includes:

[0018] A first electronic expansion valve, disposed in the first heat exchange channel;

[0019] The second electronic expansion valve is arranged in the second heat exchange channel.

[0020] Furthermore, the diversion control module includes:

[0021] A first shunt control unit is configured to control the first shunt heat exchange flow path to shunt the cold storage refrigerant of the cold storage refrigerant main circuit, so that the cold storage refrigerant passing through the first heat exchange channel is transported to the air pipe of the cold storage refrigerant main circuit or the cold storage equipment;

[0022] The second diversion control unit is configured to control the second diversion heat exchange flow path to divert the air-conditioning refrigerant of the air-conditioning refrigerant main circuit, so that the air-conditioning refrigerant passing through the second heat exchange channel is transported to the air pipe of the air-conditioning refrigerant main circuit or the air-conditioning indoor unit.

[0023] Furthermore, the first flow distribution control unit includes:

[0024] A first solenoid valve is provided on a pipeline connecting the first heat exchange channel to the cold storage refrigerant main circuit gas pipe;

[0025] The second solenoid valve is arranged on a pipeline connecting the first heat exchange channel to the cold storage device.

[0026] Furthermore, the first flow distribution control unit further includes:

[0027] The third solenoid valve is arranged on the pipeline connecting the first heat exchange channel to the liquid pipe of the cold storage refrigerant main circuit.

[0028] Furthermore, there are multiple cold storage devices, and accordingly, the second solenoid valves are multiple and the number is the same as the number of the cold storage devices, and each of the second solenoid valves is correspondingly arranged on a pipeline connecting the first heat exchange channel to each of the cold storage devices.

[0029] Furthermore, the second flow distribution control unit includes:

[0030] A fourth solenoid valve is provided on a pipeline connecting the second heat exchange channel to the air pipe of the air conditioning refrigerant main circuit;

[0031] The fifth solenoid valve is arranged on a pipeline connecting the second heat exchange channel to the air conditioner indoor unit.

[0032] Furthermore, the second flow distribution control unit further includes:

[0033] The sixth solenoid valve is arranged on the pipeline connecting the second heat exchange channel to the liquid pipe of the air-conditioning refrigerant main circuit.

[0034] Furthermore, there are multiple air-conditioning indoor units, and accordingly, the fifth solenoid valves are multiple and the number is the same as the number of the air-conditioning indoor units, and each of the fifth solenoid valves is correspondingly arranged on a pipeline connecting the second heat exchange channel to each of the air-conditioning indoor units.

[0035] Furthermore, the air conditioning and cold storage integrated system also includes:

[0036] The temperature detection module is configured to detect the temperature of the refrigerant on the first shunt heat exchange flow path to enter the energy storage module, the temperature of the refrigerant coming out of the energy storage module on the first shunt heat exchange flow path, the temperature of the refrigerant on the second shunt heat exchange flow path to enter the energy storage module, and the temperature of the refrigerant coming out of the energy storage module on the second shunt heat exchange flow path.

[0037] Furthermore, the temperature detection module includes:

[0038] A first temperature detection device and a second temperature detection device are respectively arranged on pipelines on both sides of the energy storage module on the first shunt heat exchange flow path;

[0039] The third temperature detection device and the fourth temperature detection device are respectively arranged on pipelines on both sides of the energy storage module on the second shunt heat exchange flow path.

[0040] Second,

[0041] The present application provides a control method for an air-conditioning, cooling and storage integrated system, the method being applied to the air-conditioning, cooling and storage integrated system as described in any one of the above items, the method comprising:

[0042] Determine the current electricity consumption period;

[0043] Based on the determined electricity consumption period, the first shunt heat exchange flow path and the second shunt heat exchange flow path of the air-conditioning and cooling storage integrated system are controlled separately.

[0044] Furthermore, based on the determined power consumption period, the first shunt heat exchange flow path and the second shunt heat exchange flow path of the air-conditioning and cooling storage integrated system are controlled separately, including:

[0045] If the current period is off-peak, the first shunt heat exchange flow path is configured to: make the cold storage refrigerant shunted by the first shunt heat exchange flow path form an air pipe for transporting to the cold storage refrigerant main circuit, and adjust the opening of the first shunt heat exchange flow path to shunt the cold storage refrigerant to the maximum preset opening;

[0046] According to the cooling capacity of the energy storage module, it is determined whether the conditions for stopping the cold storage refrigerant storage are met, and when it is determined that the conditions are met, the first shunt heat exchange flow path is closed, and the second shunt heat exchange flow path is configured as follows: the air-conditioning refrigerant diverted by the second shunt heat exchange flow path forms an air pipe that is transported to the air-conditioning refrigerant main circuit, and the opening of the second shunt heat exchange flow path for diverting the air-conditioning refrigerant is adjusted to the minimum preset opening.

[0047] Furthermore, based on the determined power consumption period, the first shunt heat exchange flow path and the second shunt heat exchange flow path of the air-conditioning and cooling storage integrated system are controlled separately, including:

[0048] If the current period is a peak period, then according to the cooling capacity of the energy storage module, it is determined whether to release cooling capacity to the cold storage refrigerant in the first shunt heat exchange flow path, and if it is determined that it is, then

[0049] The compressor in the cold storage refrigerant main circuit is configured to: operate at a reduced frequency; and

[0050] The first diversion heat exchange flow path is configured to: enable the cold storage refrigerant diverted by the first diversion heat exchange flow path to be transported to the cold storage equipment, and adjust the opening of the first diversion heat exchange flow path to divert the cold storage refrigerant to a maximum preset opening.

[0051] Furthermore, the first shunt heat exchange flow path and the second shunt heat exchange flow path of the air-conditioning and cooling storage integrated system are controlled separately based on the determined power consumption period, and further includes:

[0052] During the process of the energy storage module releasing cold energy to the cold storage refrigerant in the first bypass heat exchange flow path, it is determined whether the condition for stopping releasing cold energy to the cold storage refrigerant in the first bypass heat exchange flow path is met according to the cold energy situation of the energy storage module; when it is determined to be yes, the first bypass heat exchange flow path is closed, and the frequency reduction operation control of the compressor in the cold storage refrigerant main circuit is terminated.

[0053] Furthermore, based on the determined power consumption period, the first shunt heat exchange flow path and the second shunt heat exchange flow path of the air-conditioning and cooling storage integrated system are controlled separately, including:

[0054] If it is during the normal power period,

[0055] Controlling the first shunt heat exchange flow path according to the cooling capacity of the energy storage module, the set temperature of the cold storage device and the detected ambient temperature; and

[0056] The second shunt heat exchange flow path is controlled according to the cooling capacity of the energy storage module, the set temperature of the air-conditioning indoor unit and the detected ambient temperature.

[0057] Furthermore, the controlling of the first shunt heat exchange flow path according to the cooling capacity of the energy storage module, the set temperature of the cold storage device and the detected ambient temperature includes:

[0058] According to the cooling capacity of the energy storage module, the set temperature of the cold storage device and the detected ambient temperature, it is determined whether the conditions for auxiliary cooling of the cold storage device are met, and if the conditions are met,

[0059] The compressor in the cold storage refrigerant main circuit is configured to: operate at a reduced frequency;

[0060] The first shunt heat exchange flow path is configured to: allow the cold storage refrigerant shunted by the first shunt heat exchange flow path to be transported to the cold storage equipment; and

[0061] The target opening degree of the first shunt heat exchange flow path for shunting the cold storage refrigerant is determined according to the set temperature of the cold storage equipment and the detected ambient temperature, and the opening degree of the first shunt heat exchange flow path for shunting the cold storage refrigerant is adjusted according to the determined target opening degree.

[0062] Furthermore, when there are multiple cold storage devices, the cold storage devices that need auxiliary refrigeration are determined based on the set temperatures of each of the cold storage devices and the detected ambient temperature, and the diverted cold storage refrigerant is transported to the determined cold storage devices that need auxiliary refrigeration.

[0063] Furthermore, the controlling of the first shunt heat exchange flow path according to the cooling capacity of the energy storage module, the set temperature of the cold storage device and the detected ambient temperature also includes:

[0064] According to the cooling capacity of the energy storage module, the set temperature of the cold storage device and the detected ambient temperature, it is determined whether the cold storage refrigerant energy storage conditions are met, and if they are met,

[0065] The first flow-dividing heat exchange flow path is configured such that the cold storage refrigerant diverted by the first flow-dividing heat exchange flow path forms an air pipe for transporting to the cold storage refrigerant main circuit; and

[0066] The target opening degree of the first shunt heat exchange flow path for shunting the cold storage refrigerant is determined according to the set temperature of the cold storage equipment and the detected ambient temperature, and the opening degree of the first shunt heat exchange flow path for shunting the cold storage refrigerant is adjusted according to the determined target opening degree.

[0067] Furthermore, the method further comprises:

[0068] According to the cooling capacity of the energy storage module, it is judged whether the energy storage module has completed cooling, and when it is judged that cooling is completed,

[0069] Closing the first split flow heat exchange path; and

[0070] The second bypass heat exchange flow path is configured to: make the air-conditioning refrigerant bypassed by the second bypass heat exchange flow path form an air pipe for transporting to the air-conditioning refrigerant main circuit, and adjust the opening of the second bypass heat exchange flow path to bypass the air-conditioning refrigerant to the minimum preset opening.

[0071] Furthermore, the controlling of the second shunt heat exchange flow path according to the cooling capacity of the energy storage module, the set temperature of the air conditioner indoor unit and the detected ambient temperature includes:

[0072] According to the cooling capacity of the energy storage module, the set temperature of the air-conditioning indoor unit and the detected ambient temperature, it is determined whether the conditions for auxiliary cooling of the air-conditioning indoor unit are met, and if the conditions are met,

[0073] The compressor in the main refrigerant circuit of the air conditioner is configured to: operate at a reduced frequency;

[0074] The second flow-dividing heat exchange flow path is configured to: allow the air-conditioning refrigerant diverted by the second flow-dividing heat exchange flow path to be transported to the air-conditioning indoor unit; and

[0075] The target opening degree of the second bypass heat exchange flow path for bypassing the air conditioning refrigerant is determined according to the set temperature of the air conditioning indoor unit and the detected ambient temperature, and the opening degree of the second bypass heat exchange flow path for bypassing the air conditioning refrigerant is adjusted according to the determined target opening degree.

[0076] Furthermore, when there are multiple air-conditioning indoor units, the air-conditioning indoor units that need auxiliary cooling are determined based on the set temperatures of each of the air-conditioning indoor units and the detected ambient temperature, and the diverted air-conditioning refrigerant is transported to the determined air-conditioning indoor units that need auxiliary cooling.

[0077] Furthermore, the controlling of the second shunt heat exchange flow path according to the cooling capacity of the energy storage module, the set temperature of the air conditioner indoor unit and the detected ambient temperature also includes:

[0078] According to the cooling capacity of the energy storage module, the set temperature of the air conditioner indoor unit and the detected ambient temperature, it is determined whether the air conditioner refrigerant energy storage condition is met, and if it is met,

[0079] The second flow-dividing heat exchange flow path is configured such that the air-conditioning refrigerant diverted by the second flow-dividing heat exchange flow path forms an air pipe for transporting to the air-conditioning refrigerant main circuit; and

[0080] The target opening degree of the second bypass heat exchange flow path for bypassing the air conditioning refrigerant is determined according to the set temperature of the air conditioning indoor unit and the detected ambient temperature, and the opening degree of the second bypass heat exchange flow path for bypassing the air conditioning refrigerant is adjusted according to the determined target opening degree.

[0081] Furthermore, the controlling of the second shunt heat exchange flow path according to the cooling capacity of the energy storage module, the set temperature of the air conditioner indoor unit and the detected ambient temperature also includes:

[0082] According to the cooling capacity of the energy storage module, it is judged whether the energy storage module has completed cold storage, and when it is judged that cold storage is completed, the second shunt heat exchange flow path is configured as follows: the opening of the second shunt heat exchange flow path to shunt the air-conditioning refrigerant is adjusted to a minimum preset opening.

[0083] This application adopts the above technical solution, which has at least the following beneficial effects:

[0084] The present application utilizes an energy storage module and a shunt control module to form a first shunt heat exchange flow path and a second shunt heat exchange flow path, and combines a cold storage system and an air-conditioning system to form an integrated system. The energy storage module can obtain cold energy from the cold storage system and the air-conditioning system respectively for storage, and when the cold energy of either the cold storage system or the air-conditioning system is insufficient, cold energy can be provided to the system with insufficient cold energy, thereby realizing the rational utilization of the cold energy of the cold storage system and the air-conditioning system, and reducing energy waste and saving electricity.

[0085] It should be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0086] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0087] Figure 1 is a structural schematic diagram of an air-conditioning, cooling and storage integrated system according to an exemplary embodiment;

[0088] Figure 2 The present invention is a flow chart showing a control method of an air-conditioning, cooling and storage integrated system according to an exemplary embodiment. DETAILED DESCRIPTION

[0089] In order to make the purpose, technical solution and advantages of the present application clearer, the technical solution of the present application will be described in detail below. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all of the embodiments. Based on the embodiments in the present application, all other implementation methods obtained by ordinary technicians in the field without creative work belong to the scope of protection of the present application.

[0090] See also Figure 1 , Figure 1 is a structural schematic diagram of an air conditioning cooling and storage integrated system according to an exemplary embodiment. Figure 1 As shown, the air conditioning and cooling storage integrated system 1 includes:

[0091] The main cold storage refrigerant circuit 11, such as Figure 1 As shown, the cold storage refrigerant main circuit 11 includes a cold storage device 11a and a cold storage outdoor unit 11b, which are connected by an air pipe and a liquid pipe, wherein: Figure 1 In the figure, the refrigerant circulation loop 11 is shown by the cold storage device 11a and the cold storage outdoor unit 11b and the solid line connection between the two. In the cooling mode, the liquid refrigerant is transported in the liquid pipe and the gas refrigerant is transported in the gas pipe;

[0092] The main circuit of air conditioning refrigerant 12, such as Figure 1 As shown, the air conditioning refrigerant main circuit 12 includes an air conditioning indoor unit 12a and an air conditioning outdoor unit 12b, which are connected by an air pipe and a liquid pipe, wherein: Figure 1 The air conditioning refrigerant main circuit 12 is shown by the air conditioning indoor unit 12a and the air conditioning outdoor unit 12b and the solid line connection between the two. In the cooling mode, the liquid refrigerant is transported in the liquid pipe and the gas refrigerant is transported in the gas pipe;

[0093] The energy storage module 13 and the flow splitting control module 14 form a first flow splitting heat exchange flow path ( Figure 1 ) and the second split flow heat exchange path ( Figure 1 ),

[0094] in,

[0095] The first shunt heat exchange flow path is used to shunt the cold storage refrigerant from the liquid pipe of the cold storage refrigerant main circuit 11, so that the shunt cold storage refrigerant is transported to the gas pipe of the cold storage refrigerant main circuit 11 or the cold storage device 11a of the cold storage refrigerant main circuit 11 after heat exchange in the energy storage module 13;

[0096] The second diversion heat exchange flow path is used to divert the air-conditioning refrigerant from the liquid pipe of the air-conditioning refrigerant main circuit 12, so that the diverted air-conditioning refrigerant is transported to the air pipe of the air-conditioning refrigerant main circuit 12, or the air-conditioning indoor unit 12a of the air-conditioning refrigerant main circuit 12 after heat exchange in the energy storage module 13.

[0097] Specifically, the scheme utilizes the energy storage module 13 and the shunt control module 14 to form a first shunt heat exchange path and a second shunt heat exchange path, combining the cold storage system and the air-conditioning system to form an integrated system. The scheme can operate when both the cold storage refrigerant main circuit 11 and the air-conditioning refrigerant main circuit 12 are in cooling mode, wherein, when the shunt control module 14 is not configured to form shunt control, the first shunt heat exchange path and the second shunt heat exchange path are both in a non-conducting state, and both the cold storage refrigerant and the air-conditioning refrigerant circulate in their respective main circuits; and when the shunt control module 14 is configured to form shunt control, the first shunt heat exchange path and the second shunt heat exchange path can be shunt controlled separately to store cold or release cold.

[0098] For example, when cold storage refrigerant is used for cold storage, the first shunt heat exchange flow path is controlled to shunt the refrigerant from the liquid pipe of the cold storage refrigerant main circuit 11, and form a gas pipe for transporting to the cold storage refrigerant main circuit 11. Under this shunt configuration, the energy storage module 13 can shunt the cold storage refrigerant from the cold storage refrigerant main circuit 11 through the first shunt heat exchange flow path, and obtain cold energy from it for storage. When the cold energy stored in the cold storage module is used to assist in refrigeration of the cold storage device 11a, the first shunt heat exchange flow path is controlled to shunt the refrigerant from the liquid pipe of the cold storage refrigerant main circuit 11, and form a cold storage device 11a for transport to the cold storage refrigerant main circuit 11. Under this shunt configuration, the energy storage module 13 releases the stored cold energy into the shunt cold storage refrigerant, and then transports it to the cold storage device 11a.

[0099] Similarly, when using the air conditioning refrigerant for cold storage, the second shunt heat exchange flow path is controlled to shunt the refrigerant from the liquid pipe of the air conditioning refrigerant main circuit 12, and form a gas pipe for transporting to the air conditioning refrigerant main circuit 12. Under this shunt configuration, the energy storage module 13 can shunt the air conditioning refrigerant from the air conditioning refrigerant main circuit 12 through the second shunt heat exchange flow path, and obtain cold energy from it for storage. When using the cold energy stored in the cold storage module to assist in cooling the air conditioning indoor unit 12a, the second shunt heat exchange flow path is controlled to shunt the refrigerant from the liquid pipe of the air conditioning refrigerant main circuit 12, and form a gas pipe for transporting to the air conditioning indoor unit 12a of the air conditioning refrigerant main circuit 12. Under this shunt configuration, the energy storage module 13 releases the stored cold energy into the shunted air conditioning refrigerant, and then transports it to the air conditioning indoor unit 12a.

[0100] In summary, through this solution, the energy storage module 13 can be used to obtain cold energy from the cold storage system and the air-conditioning system and store it respectively, and when the cold energy of either the cold storage system or the air-conditioning system is insufficient, cold energy can be provided to the system with insufficient cold energy, thereby realizing the rational use of the cold energy of the cold storage system and the air-conditioning system, reducing energy waste and saving electricity.

[0101] The energy storage module 13 and the current diversion control module 14 of the present application are described below through relevant embodiments.

[0102] In one embodiment, the energy storage module 13 includes:

[0103] A first heat exchange channel 1301, one end of which is connected to the liquid pipe of the cold storage refrigerant main circuit 11, and the other end of which is respectively connected to the gas pipe of the cold storage refrigerant main circuit 11 and the cold storage device 11a;

[0104] A second heat exchange channel 1302, one end of which is connected to the liquid pipe of the air conditioning refrigerant main circuit 12, and the other end of which is respectively connected to the gas pipe of the air conditioning refrigerant main circuit 12 and the air conditioning indoor unit 12a; and

[0105] Energy storage material (not shown in the figure) is distributed around the first heat exchange channel 1301 and the second heat exchange channel 1302 .

[0106] Specifically, the first heat exchange channel 1301 and the second heat exchange channel 1302 are used to ensure that the cold storage refrigerant and the air conditioning refrigerant are independent of each other, and the diverted cold storage refrigerant and the air conditioning refrigerant are returned to their respective main circuits, which helps to ensure the reliable and stable operation of the cold storage refrigerant main circuit 11 and the air conditioning refrigerant main circuit 12. For the first heat exchange channel 1301 and the second heat exchange channel 1302 in the energy storage module 13, in actual applications, the two can be spiral-shaped, which can maximize the heat exchange area on the one hand and ensure the refrigerant flow rate on the other hand. For the energy storage material, a phase change energy storage material can be used.

[0107] In one embodiment, the energy storage module 13 further includes:

[0108] A first electronic expansion valve 1304 is disposed in the first heat exchange channel 1301;

[0109] The second electronic expansion valve 1305 is disposed in the second heat exchange channel 1302 .

[0110] Specifically, by configuring corresponding electronic expansion valves in the first heat exchange channel 1301 and the second heat exchange channel 1302, the opening of the refrigerant flow can be adjusted, and the flow rate of the shunt refrigerant can be adjusted, which helps to achieve accurate control of the refrigerant distribution amount between the main circuit and the shunt heat exchange flow path without affecting the normal operation of the main circuit system. For example, when the cold storage refrigerant main circuit 11 has excess cold capacity, the first electronic expansion valve 1304 can be used to regulate the reasonable shunt of the cold storage refrigerant, which can not only ensure the stable refrigeration operation of the cold storage equipment 11a, but also store the excess cold capacity of the cold storage refrigerant main circuit 11 in the energy storage module 13.

[0111] In one embodiment, the flow diversion control module 14 includes:

[0112] The first shunt control unit 14a is configured to control the first shunt heat exchange flow path to shunt the cold storage refrigerant of the cold storage refrigerant main circuit 11, so that the cold storage refrigerant passing through the first heat exchange channel 1301 is transported to the air pipe of the cold storage refrigerant main circuit 11 or the cold storage device 11a;

[0113] The second diversion control unit 14b is configured to control the second diversion heat exchange flow path to divert the air-conditioning refrigerant of the air-conditioning refrigerant main circuit 12, so that the air-conditioning refrigerant passing through the second heat exchange channel 1302 is transported to the air pipe of the air-conditioning refrigerant main circuit 12 or the air-conditioning indoor unit 12a.

[0114] Specifically, the first flow split control unit 14a controls the first flow split heat exchange path, such as Figure 1 As shown, the first flow diversion control unit 14a includes: a first solenoid valve 1401, which is arranged on the pipeline connecting the first heat exchange channel 1301 to the air pipe of the cold storage refrigerant main circuit 11; and a second solenoid valve 1402, which is arranged on the pipeline connecting the first heat exchange channel 1301 to the cold storage device 11a. When the first solenoid valve 1401 is configured to be turned on, the diverted cold storage refrigerant can form the air pipe transported to the cold storage refrigerant main circuit 11, and when the second solenoid valve 1402 is configured to be turned on, the diverted cold storage refrigerant can form the cold storage device 11a transported to the cold storage refrigerant main circuit 11.

[0115] Furthermore, if Figure 1 As shown, the first flow split control unit 14a may further include: a third solenoid valve 1403, which is arranged on the pipeline connecting the first heat exchange channel 1301 to the liquid pipe of the cold storage refrigerant main loop 11. The third solenoid valve 1403 can effectively isolate the refrigerant in the cold storage refrigerant main loop 11 from the heat exchange between the cold storage module.

[0116] Furthermore, if Figure 1As shown, there are multiple cold storage devices 11a, and accordingly, the second solenoid valves 1402 are the same number as the number of the cold storage devices 11a, and each of the second solenoid valves 1402 is correspondingly arranged on the pipeline connecting the first heat exchange channel 1301 to each of the cold storage devices 11a. When there are multiple cold storage devices 11a, each cold storage device 11a is correspondingly configured with a second solenoid valve 1402, so that each cold storage device 11a can be individually auxiliary refrigeration controlled. For example, some cold storage devices 11a can stably reach the set temperature and do not need auxiliary refrigeration control, while some cold storage devices 11a cannot stably reach the set temperature, which may be due to the influence of their location, and the cold supply is insufficient. Auxiliary refrigeration control can be performed on them to increase the cold supply individually.

[0117] The second flow split control unit 14b controls the second flow split heat exchange flow path, such as Figure 1 As shown, the second flow split control unit 14b includes: a fourth solenoid valve 1404, which is arranged on the pipeline connecting the second heat exchange channel 1302 to the air pipe of the air conditioning refrigerant main circuit 12; and a fifth solenoid valve 1405, which is arranged on the pipeline connecting the second heat exchange channel 1302 to the air conditioning indoor unit 12a. When the fourth solenoid valve 1404 is configured to be turned on, the air conditioning refrigerant split can form the air pipe transported to the air conditioning refrigerant main circuit 12, and when the fifth solenoid valve 1405 is configured to be turned on, the air conditioning refrigerant split can form the air pipe transported to the air conditioning refrigerant main circuit 12, and when the fifth solenoid valve 1405 is configured to be turned on, the air conditioning refrigerant split can form the air conditioning indoor unit 12a transported to the air conditioning refrigerant main circuit 12.

[0118] Furthermore, if Figure 1 As shown, the second flow split control unit 14b may further include: a sixth solenoid valve 1406, which is arranged on the pipeline connecting the second heat exchange channel 1302 to the liquid pipe of the air conditioning refrigerant main circuit 12. The sixth solenoid valve 1406 can effectively isolate the refrigerant in the air conditioning refrigerant main circuit 12 from the heat exchange between the cold storage module.

[0119] Furthermore, if Figure 1As shown, there are multiple air-conditioning indoor units 12a, and accordingly, the fifth solenoid valve 1405 is the same number as the number of the air-conditioning indoor units 12a, and each of the fifth solenoid valves 1405 is correspondingly arranged on the pipeline connecting the second heat exchange channel 1302 to each of the air-conditioning indoor units 12a. When there are multiple air-conditioning indoor units 12a, each air-conditioning indoor unit 12a is correspondingly configured with a fifth solenoid valve 1405, so that each air-conditioning indoor unit 12a can be individually auxiliary refrigeration controlled. For example, some air-conditioning indoor units 12a can stably reach the set temperature and do not need auxiliary refrigeration control, while some air-conditioning indoor units 12a cannot stably reach the set temperature, which may be due to the influence of their location, and the cold supply is insufficient, and auxiliary refrigeration control can be performed on them to increase the cold supply individually.

[0120] In one embodiment, the air conditioning and cold storage integrated system 1 further includes:

[0121] The temperature detection module 15 is configured to detect the temperature of the refrigerant on the first bypass heat exchange flow path to enter the energy storage module 13, the temperature of the refrigerant coming out of the energy storage module 13 on the first bypass heat exchange flow path, the temperature of the refrigerant on the second bypass heat exchange flow path to enter the energy storage module 13, and the temperature of the refrigerant coming out of the energy storage module 13 on the second bypass heat exchange flow path.

[0122] Specifically, through this solution, the inlet and outlet temperatures of the split refrigerant can be detected to determine the cold storage or cooling status of the cold storage module. Figure 1 As shown, the temperature detection module 15 may include: a first temperature detection device 1501 and a second temperature detection device 1502, which are respectively arranged on the pipelines on both sides of the energy storage module 13 on the first shunt heat exchange flow path; a third temperature detection device 1503 and a fourth temperature detection device 1504, which are respectively arranged on the pipelines on both sides of the energy storage module 13 on the second shunt heat exchange flow path.

[0123] Based on the above-mentioned air conditioning cooling and storage integrated system 1, the present application further provides a solution for realizing energy-saving control by using specific power consumption periods. Figure 2 , Figure 2 is a flow chart showing a control method of an air conditioning and cooling storage integrated system 1 according to an exemplary embodiment. Figure 2 As shown, the method comprises the following steps:

[0124] Step S201, determining the current power consumption period;

[0125] Step S202: Based on the determined power consumption period, the first shunt heat exchange flow path and the second shunt heat exchange flow path of the air-conditioning and cooling storage integrated system 1 are controlled separately.

[0126] Specifically, the electricity consumption period may include: valley electricity period, peak electricity period and flat electricity period. The three periods can be delineated according to the electricity load of each region, wherein the electricity price of the flat electricity period corresponds to the basic electricity price, the electricity price of the valley electricity period is lower than the basic electricity price, and the electricity price of the peak electricity period is higher than the basic electricity price. According to the current electricity consumption period, the first shunt heat exchange flow path and the second shunt heat exchange flow path of the air conditioning cold storage integrated system 1 are controlled separately, which can not only help to reasonably utilize electric energy, reduce energy waste and save electric energy, but also help to save electricity costs.

[0127] In one embodiment, for step S202, based on the determined power consumption period, the first shunt heat exchange flow path and the second shunt heat exchange flow path of the air conditioning and cooling storage integrated system 1 are controlled separately, including:

[0128] If the current period is off-peak, the first shunt heat exchange flow path is configured to: make the cold storage refrigerant shunted by the first shunt heat exchange flow path form an air pipe for transporting to the cold storage refrigerant main circuit 11, and adjust the opening of the first shunt heat exchange flow path to shunt the cold storage refrigerant to the maximum preset opening;

[0129] According to the cooling capacity of the energy storage module 13, it is determined whether the conditions for stopping the cold storage refrigerant storage are met, and when it is determined that the conditions are met, the first shunt heat exchange flow path is closed, and the second shunt heat exchange flow path is configured as follows: the air-conditioning refrigerant diverted by the second shunt heat exchange flow path forms an air pipe that is transported to the air-conditioning refrigerant main circuit 12, and the opening of the second shunt heat exchange flow path for diverting the air-conditioning refrigerant is adjusted to the minimum preset opening.

[0130] Specifically, during the off-peak period, the solution uses the lower refrigeration temperature of the cold storage refrigerant system to quickly store cold in the energy storage module 13. After the cold storage is full, the air conditioning refrigerant system with relatively low power consumption is used to keep the energy storage module 13 in a state of full cold storage. Figure 1Take the scheme as an example to illustrate that when the current power is in the valley period, the first solenoid valve 1401 and the third solenoid valve 1403 are opened to make the first shunt heat exchange flow path conductive, and the shunt cold storage refrigerant forms an air pipe for transporting to the cold storage refrigerant main circuit 11, and at the same time, the first electronic expansion valve 1304 is adjusted to the maximum preset opening, so that the shunt cold storage refrigerant is allowed to exchange heat in the first heat exchange channel 1301 of the energy storage module 13. As for judging whether the condition of stopping the cold storage refrigerant cold storage is reached according to the cold capacity of the energy storage module 13, in actual application, the cold storage material temperature of the energy storage module 13 can be directly measured to obtain the cold capacity of the energy storage module 13, or the cold capacity of the energy storage module 13 can be obtained according to the refrigerant temperature on both sides of the energy storage module 13 on the first shunt heat exchange flow path. Taking the refrigerant temperature on both sides of the energy storage module 13 on the first shunt heat exchange flow path as an example, it can be determined by judging t 1out -t 1in ≤t thr Whether it is established, to determine whether the energy storage module 13 stops storing cold storage refrigerant, where t 1out is the temperature of the cold storage refrigerant coming out of the energy storage module 13 on the first shunt heat exchange flow path, t 1in is the temperature of the cold storage refrigerant on the first shunt heat exchange flow path to be introduced into the energy storage module 13, t thr is the threshold temperature. If this condition is met, it means that the energy storage module 13 can stop storing cold refrigerant. In this case, the first solenoid valve 1401 and the third solenoid valve 1403 are closed, and the fourth solenoid valve 1404 and the sixth solenoid valve 1406 on the second shunt heat exchange flow path are opened at the same time, so that the refrigerant diverted by the second shunt heat exchange flow path forms an air pipe transported to the air-conditioning refrigerant main circuit 12, and the opening of the second electronic expansion valve 1305 in the second heat exchange channel 1302 is adjusted to the minimum preset opening to keep the energy storage module 13 in a state of full cold storage.

[0131] In one embodiment, for step S202, based on the determined power consumption period, the first shunt heat exchange flow path and the second shunt heat exchange flow path of the air conditioning and cooling storage integrated system 1 are controlled separately, including:

[0132] If the current period is a peak period, then according to the cooling capacity of the energy storage module 13, it is determined whether to release cooling capacity to the cold storage refrigerant in the first shunt heat exchange flow path, and if it is determined that it is, then

[0133] The compressor in the cold storage refrigerant main circuit 11 is configured to: operate at a reduced frequency; and

[0134] The first diversion heat exchange flow path is configured to: allow the cold storage refrigerant diverted by the first diversion heat exchange flow path to be transported to the cold storage device 11a, and adjust the opening of the first diversion heat exchange flow path to divert the cold storage refrigerant to a maximum preset opening.

[0135] Specifically, compared with the air conditioning refrigerant main circuit 12, the cold storage refrigerant main circuit 11 has a lower refrigeration temperature and relatively larger power consumption. This solution reduces the frequency of the compressor in the refrigerant main circuit during the peak power period to reduce the power consumption of the cold storage refrigerant main circuit 11 during the peak power period, thereby reducing the power cost of the entire system. At the same time, the stored cold capacity of the energy storage module 13 is used to provide cold capacity to the cold storage refrigerant main circuit 11 to ensure the stable operation of the cold storage refrigerant main circuit 11. Figure 1 Take the example to illustrate the scheme. When the current peak power period is reached, if t 1out -t 1in ≤t thr If the condition is established, it means that the stored cold capacity is sufficient and the cold capacity can be released to the refrigerant in the first bypass heat exchange flow path. In this case, the compressor in the cold storage refrigerant main circuit 11 is configured to: reduce the frequency operation; at the same time, open the second solenoid valve 1402 and the third solenoid valve 1403, so that the refrigerant diverted by the first bypass heat exchange flow path is transported to the cold storage device 11a, and the opening of the first electronic expansion valve 1304 of the first heat exchange channel 1301 is adjusted to the maximum preset opening to maximize the diversion of the cold storage refrigerant to utilize the cold capacity of the energy storage module 13.

[0136] Furthermore, the first shunt heat exchange flow path and the second shunt heat exchange flow path of the air-conditioning and cooling storage integrated system 1 are controlled separately based on the determined power consumption period, and further includes:

[0137] During the process of the energy storage module 13 releasing cold energy to the cold storage refrigerant in the first bypass heat exchange flow path, it is determined whether the condition for stopping releasing cold energy to the cold storage refrigerant in the first bypass heat exchange flow path is met according to the cold energy condition of the energy storage module 13; when it is determined to be yes, the first bypass heat exchange flow path is closed, and the frequency reduction operation control of the compressor in the cold storage refrigerant main circuit 11 is terminated.

[0138] Specifically, in the process of releasing cold energy from the energy storage module 13, the cold energy situation in the energy storage module 13 can be judged according to the temperature of the cold storage refrigerant on both sides of the energy storage module 13 entering and exiting the first bypass heat exchange flow path, so as to judge whether to close the first bypass heat exchange flow path. For example, if the temperature difference of the cold storage refrigerant on both sides of the energy storage module 13 entering and exiting is smaller than a predetermined value, it can be judged that the first bypass heat exchange flow path needs to be closed. Thus, the second solenoid valve 1402 and the third solenoid valve 1403 of the first bypass heat exchange flow path are closed. At the same time, the frequency reduction operation control of the compressor in the cold storage refrigerant main circuit 11 is terminated, and the compressor in the cold storage refrigerant main circuit 11 is restored to the control under the independent operation of the cold storage refrigerant main circuit 11.

[0139] In one embodiment, for step S202, based on the determined power consumption period, the first shunt heat exchange flow path and the second shunt heat exchange flow path of the air conditioning and cooling storage integrated system 1 are controlled separately, including:

[0140] If it is during the normal power period,

[0141] Controlling the first shunt heat exchange flow path according to the cooling capacity of the energy storage module 13, the set temperature of the cold storage device 11a and the detected ambient temperature; and

[0142] The second flow-dividing heat exchange path is controlled according to the cooling capacity of the energy storage module 13 , the set temperature of the air-conditioning indoor unit 12 a , and the detected ambient temperature.

[0143] Specifically, when the current power-off period is in the normal period, the solution realizes the improvement of the control of cold storage or cooling release during the normal period according to the cooling capacity of the energy storage module 13 and the set temperature of the indoor equipment corresponding to the refrigerant main circuit and the detected ambient temperature.

[0144] In one embodiment, the following controls may be performed:

[0145] Table 1

[0146]

[0147]

[0148] Among them, when the first shunt heat exchange flow path is connected, the first electronic expansion valve 1304 is controlled according to the set temperature of the cold storage device 11a and the detected ambient temperature; and when the second shunt heat exchange flow path is connected, the second electronic expansion valve 1305 is controlled according to the set temperature of the air-conditioning indoor unit 12a and the detected ambient temperature.

[0149] ε: the difference between the ambient temperature inside the cold storage device 11a and the set temperature of the cold storage device 11a (ambient temperature - set temperature);

[0150] ζ: The difference between the indoor ambient temperature detected by the air conditioner and the air conditioner set temperature (ambient temperature - set temperature);

[0151] EEV1: is the first electronic expansion valve 1304;

[0152] EEV2: the second electronic expansion valve 1305;

[0153] ɑ, β, θ, σ, ψ, Э, a, b, c, d, e, f, j, and k are all pre-configured.

[0154] In one embodiment, the first shunt heat exchange flow path is controlled according to the refrigerant temperature at both sides of the energy storage module 13 on the first shunt heat exchange flow path, the set temperature of the cold storage device 11a and the detected ambient temperature, including:

[0155] According to the cooling capacity of the energy storage module 13, the set temperature of the cold storage device 11a and the detected ambient temperature, it is determined whether the conditions for auxiliary cooling of the cold storage device 11a are met, and if the conditions are met,

[0156] The compressor in the cold storage refrigerant main circuit 11 is configured to: operate at a reduced frequency;

[0157] The first shunt heat exchange flow path is configured to: allow the cold storage refrigerant shunted by the first shunt heat exchange flow path to be transported to the cold storage device 11a; and

[0158] The target opening degree of the first bypass heat exchange flow path for bypassing the cold storage refrigerant is determined according to the set temperature of the cold storage device 11a and the detected ambient temperature, and the opening degree of the first bypass heat exchange flow path for bypassing the cold storage refrigerant is adjusted according to the determined target opening degree.

[0159] Specifically, the solution is to use the first shunt heat exchange flow path to enable the energy storage module 13 to release cold energy to the cold storage refrigerant main circuit 11 during the flat power period to assist the refrigeration of the cold storage device 11a, so as to reduce the energy consumption during flat power period. According to the cold energy of the energy storage module 13, it can be judged whether the energy storage module 13 is currently suitable for releasing cold energy, and according to the set temperature of the cold storage device 11a and the detected ambient temperature, it can be judged whether the cold storage device 11a of the current cold storage refrigerant main circuit 11 is insufficiently supplied with cold energy, and whether auxiliary refrigeration is required through the energy storage module 13. It can be set as follows: when the difference ε between the ambient temperature in the cold storage device 11a and the set temperature of the cold storage device 11a satisfies any one of the situations 1-3 in the above Table 1, and when the cooling capacity of the energy storage module 13 is sufficient, it is judged that the conditions for auxiliary cooling of the cold storage device 11a are met. In this case, the second solenoid valve 1402 and the third solenoid valve 1403 on the first shunt heat exchange flow path are opened, and the first electronic expansion valve 1304 on the first heat exchange channel 1301 in the energy storage module 13 is controlled according to the above Table 1.

[0160] In one embodiment, when there are multiple cold storage devices 11a, the cold storage devices 11a that need auxiliary refrigeration are determined based on the set temperatures of the respective cold storage devices 11a and the detected ambient temperature, and the diverted cold storage refrigerant is transported to the determined cold storage devices 11a that need auxiliary refrigeration.

[0161] Specifically, as shown in 1, taking the two cold storage devices 11a shown in the figure as an example, the cold storage device 11a that needs auxiliary refrigeration can be determined according to the set temperatures of the two cold storage devices 11a and the detected ambient temperatures. For example, if the ambient temperature inside the device detected by one cold storage device 11a is the same as the set temperature, the device can be determined as a cold storage device 11a that does not need auxiliary refrigeration, and its corresponding solenoid valve remains closed; and if the difference between the ambient temperature inside the device measured by another cold storage device 11a and the set temperature meets any one of the situations 1-3 in Table 1 above, the device can be determined as the cold storage device 11a that needs auxiliary refrigeration, and its corresponding solenoid valve is opened.

[0162] In one embodiment, the first shunt heat exchange flow path is controlled according to the refrigerant temperature at both sides of the energy storage module 13 on the first shunt heat exchange flow path, the set temperature of the cold storage device 11a and the detected ambient temperature, and further includes:

[0163] According to the cooling capacity of the energy storage module 13, the set temperature of the cold storage device 11a and the detected ambient temperature, it is determined whether the cold storage refrigerant energy storage conditions are met, and if they are met,

[0164] The first shunt heat exchange flow path is configured to: form a gas pipe for the cold storage refrigerant shunted by the first shunt heat exchange flow path to be transported to the cold storage refrigerant main circuit 11; and

[0165] The target opening degree of the first bypass heat exchange flow path for bypassing the cold storage refrigerant is determined according to the set temperature of the cold storage device 11a and the detected ambient temperature, and the opening degree of the first bypass heat exchange flow path for bypassing the cold storage refrigerant is adjusted according to the determined target opening degree.

[0166] Specifically, the solution is to use the first shunt heat exchange path to store cold by comprehensively considering the cold capacity of the energy storage module 13 and the refrigeration of the cold storage device 11a during the flat power period. It can be set as follows: when the cold capacity in the energy storage module 13 is insufficient, and the difference ε between the set temperature of the cold storage device 11a and the detected ambient temperature satisfies the following table 2:

[0167] Table 2

[0168]

[0169] According to Table 2, the surplus of refrigeration in the cold storage system can be determined, and the surplus refrigeration can be used to avoid waste and achieve reasonable utilization. Therefore, the first solenoid valve 1401 and the third solenoid valve 1403 are opened to connect the first shunt heat exchange flow path, and the shunt cold storage refrigerant forms a gas pipe for transporting to the cold storage refrigerant main circuit 11. At the same time, when the difference between the ambient temperature detected by the cold storage device 11a and the set temperature reaches the situation in Table 1, the opening of the first electronic expansion valve 1304 is adjusted according to Table 1.

[0170] In one embodiment, the method further comprises:

[0171] According to the cooling capacity of the energy storage module 13, it is judged whether the energy storage module 13 has completed cooling, and when it is judged that cooling is completed,

[0172] Closing the first split flow heat exchange path; and

[0173] The second bypass heat exchange flow path is configured to: make the air-conditioning refrigerant bypassed by the second bypass heat exchange flow path form an air pipe for transporting to the air-conditioning refrigerant main circuit 12, and adjust the opening of the second bypass heat exchange flow path to bypass the air-conditioning refrigerant to the minimum preset opening.

[0174] When it is determined that the energy storage module 13 has completed cold storage, in this case, the first solenoid valve 1401 and the third solenoid valve 1403 are closed, and the fourth solenoid valve 1404 and the sixth solenoid valve 1406 on the second bypass heat exchange flow path are opened at the same time, so that the refrigerant diverted by the second bypass heat exchange flow path forms an air pipe for transporting to the air-conditioning refrigerant main circuit 12, and the opening of the second electronic expansion valve 1305 in the second heat exchange channel 1302 is adjusted to the minimum preset opening to keep the energy storage module 13 in a state of full cold storage.

[0175] In one embodiment, the second shunt heat exchange flow path is controlled according to the cooling capacity of the energy storage module 13, the set temperature of the air conditioner indoor unit 12a and the detected ambient temperature, including:

[0176] According to the cooling capacity of the energy storage module 13, the set temperature of the air-conditioning indoor unit 12a and the detected ambient temperature, it is determined whether the conditions for auxiliary cooling of the air-conditioning indoor unit 12a are met, and if the conditions are met,

[0177] The compressor in the air conditioning refrigerant main circuit 12 is configured to: operate at a reduced frequency;

[0178] The second flow-dividing heat exchange flow path is configured to: allow the air-conditioning refrigerant diverted by the second flow-dividing heat exchange flow path to be transported to the air-conditioning indoor unit 12a; and

[0179] The target opening degree of the second bypass heat exchange flow path for bypassing the air conditioning refrigerant is determined according to the set temperature of the air conditioning indoor unit 12a and the detected ambient temperature, and the opening degree of the second bypass heat exchange flow path for bypassing the air conditioning refrigerant is adjusted according to the determined target opening degree.

[0180] Specifically, the solution is to use the second shunt heat exchange flow path to enable the energy storage module 13 to release cold energy to the air conditioning refrigerant main circuit 12 during the flat-power period to assist the refrigeration of the air conditioning indoor unit 12a, so as to reduce the energy consumption during flat-power period. According to the cold energy of the energy storage module 13, it can be judged whether the energy storage module 13 is currently suitable for releasing cold energy, and according to the set temperature of the air conditioning indoor unit 12a and the detected ambient temperature, it can be judged whether the air conditioning indoor unit 12a of the current air conditioning refrigerant main circuit 12 is insufficiently supplied with cold energy, and whether auxiliary cooling is required through the energy storage module 13. It can be set as follows: when the difference ζ between the ambient temperature detected by the air-conditioning indoor unit 12a and the set temperature meets any one of the situations 1-3 in the above Table 1, and when the cooling capacity of the energy storage module 13 is sufficient, it is judged that the conditions for auxiliary cooling of the air-conditioning indoor unit 12a are met. In this case, the fifth solenoid valve 1405 and the sixth solenoid valve 1406 on the second bypass heat exchange flow path are opened, and the second electronic expansion valve 1305 on the second heat exchange channel 1302 in the energy storage module 13 is controlled according to the above Table 1.

[0181] In one embodiment, when there are multiple air-conditioning indoor units 12a, the air-conditioning indoor units 12a that need auxiliary cooling are determined based on the set temperatures of the respective air-conditioning indoor units 12a and the detected ambient temperature, and the diverted air-conditioning refrigerant is transported to the determined air-conditioning indoor units 12a that need auxiliary cooling.

[0182] Specifically, as shown in 1, taking the two air-conditioning indoor units 12a shown in the figure as an example, the air-conditioning indoor unit 12a that needs auxiliary cooling can be determined according to the set temperatures of the two air-conditioning indoor units 12a and the detected ambient temperature. For example, if the ambient temperature detected by one air-conditioning indoor unit 12a is the same as the set temperature, the device can be determined as the air-conditioning indoor unit 12a that does not need auxiliary cooling, and the corresponding solenoid valve remains closed; and if the difference between the ambient temperature measured by the other air-conditioning indoor unit 12a and the set temperature meets any one of the situations 1-3 in the above Table 1, the device can be determined as the air-conditioning indoor unit 12a that needs auxiliary cooling, and the corresponding solenoid valve is opened.

[0183] In one embodiment, the controlling of the second shunt heat exchange flow path according to the cooling capacity of the energy storage module 13, the set temperature of the air conditioner indoor unit 12a and the detected ambient temperature also includes:

[0184] According to the cooling capacity of the energy storage module 13, the set temperature of the air conditioner indoor unit 12a and the detected ambient temperature, it is determined whether the air conditioner refrigerant energy storage condition is met, and if it is met,

[0185] The second flow-dividing heat exchange flow path is configured such that the air-conditioning refrigerant diverted by the second flow-dividing heat exchange flow path forms an air pipe for being transported to the air-conditioning refrigerant main circuit 12; and

[0186] The target opening degree of the second bypass heat exchange flow path for bypassing the air conditioning refrigerant is determined according to the set temperature of the air conditioning indoor unit 12a and the detected ambient temperature, and the opening degree of the second bypass heat exchange flow path for bypassing the air conditioning refrigerant is adjusted according to the determined target opening degree.

[0187] Specifically, the scheme is to use the second shunt heat exchange flow path to store cold by comprehensively considering the cold capacity of the energy storage module 13 and the cooling capacity of the air conditioner indoor unit 12a when the current power supply is in the flat period. It can be set as follows: when the cold capacity in the energy storage module 13 is insufficient, and the difference value ζ between the set temperature of the air conditioner indoor unit 12a and the detected ambient temperature satisfies the situation in Table 2 above, wherein, according to Table 2, it can be determined that the cooling capacity of the air conditioning system is surplus, and the surplus cold capacity part can be used to avoid waste and achieve reasonable utilization. Therefore, the fourth solenoid valve 1404 and the sixth solenoid valve 1406 are opened to make the second shunt heat exchange flow path conductive, and the shunt air conditioning refrigerant forms an air pipe for conveying to the air conditioning refrigerant main circuit 12. At the same time, when the difference between the ambient temperature detected by the air conditioner indoor unit 12a and the set temperature reaches the situation in Table 1, the opening of the second electronic expansion valve 1305 is adjusted according to Table 1.

[0188] In one embodiment, the controlling of the second shunt heat exchange flow path according to the cooling capacity of the energy storage module 13, the set temperature of the air conditioner indoor unit 12a and the detected ambient temperature also includes:

[0189] According to the cooling capacity of the energy storage module 13, it is determined whether the energy storage module 13 has completed cold storage, and when it is determined that cold storage is completed, the second shunt heat exchange flow path is configured as follows: the opening of the second shunt heat exchange flow path for shunting the air-conditioning refrigerant is adjusted to the minimum preset opening.

[0190] Specifically, when it is determined that the energy storage module 13 has completed cold storage, in this case, the opening of the second electronic expansion valve 1305 in the second heat exchange channel 1302 is adjusted to the minimum preset opening to keep the energy storage module 13 in a state of full cold storage.

[0191] It can be understood that the same or similar parts of the above embodiments can be referenced to each other, and the contents not described in detail in some embodiments can refer to the same or similar contents in other embodiments.

[0192] It should be noted that, in the description of this application, the terms "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance. In addition, in the description of this application, unless otherwise specified, the meaning of "plurality" and "multiple" refers to at least two.

[0193] It should be understood that when an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or there may be an intermediate element at the same time; when an element is referred to as being "connected to" another element, it can be directly connected to the other element or there may be an intermediate element at the same time. In addition, the "connection" used here may include wireless connection; the wording "and / or" used includes any unit and all combinations of one or more associated listed items.

[0194] Any process or method description in a flowchart or otherwise described herein may be understood to represent a module, fragment or portion of code comprising one or more executable instructions for implementing the steps of a specific logical function or process, and the scope of the preferred embodiments of the present application includes alternative implementations in which functions may not be performed in the order shown or discussed, including performing functions in a substantially simultaneous manner or in the reverse order depending on the functions involved, which should be understood by technicians in the technical field to which the embodiments of the present application belong.

[0195] It should be understood that the various parts of the present application can be implemented by hardware, software, firmware or a combination thereof. In the above-mentioned embodiments, multiple steps or methods can be implemented by software or firmware stored in a memory and executed by a suitable instruction execution system. For example, if implemented by hardware, as in another embodiment, it can be implemented by any one of the following technologies known in the art or their combination: a discrete logic circuit having a logic gate circuit for implementing a logic function for a data signal, a dedicated integrated circuit having a suitable combination of logic gate circuits, a programmable gate array (PGA), a field programmable gate array (FPGA), etc.

[0196] A person skilled in the art may understand that all or part of the steps in the method for implementing the above-mentioned embodiment may be completed by instructing related hardware through a program, and the program may be stored in a computer-readable storage medium, which, when executed, includes one or a combination of the steps of the method embodiment.

[0197] In addition, each functional unit in each embodiment of the present application may be integrated into a processing module, or each unit may exist physically separately, or two or more units may be integrated into one module. The above-mentioned integrated module may be implemented in the form of hardware or in the form of a software functional module. If the integrated module is implemented in the form of a software functional module and sold or used as an independent product, it may also be stored in a computer-readable storage medium.

[0198] The storage medium mentioned above can be a read-only memory, a magnetic disk or an optical disk, etc.

[0199] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0200] Although the embodiments of the present application have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations on the present application. Ordinary technicians in the field can change, modify, replace and modify the above embodiments within the scope of the present application.

Claims

1. An air conditioning and cooling storage integrated system, characterized in that: include: Cold storage refrigerant main circuit; Air conditioning refrigerant main circuit; The energy storage module and the shunt control module form a first shunt heat exchange flow path and a second shunt heat exchange flow path. in, The first shunt heat exchange flow path is used to shunt the cold storage refrigerant from the liquid pipe of the cold storage refrigerant main circuit, so that the shunt cold storage refrigerant is heat exchanged in the energy storage module and then transported to the gas pipe of the cold storage refrigerant main circuit or the cold storage equipment of the cold storage refrigerant main circuit; The second diversion heat exchange flow path is used to divert the air-conditioning refrigerant from the liquid pipe of the air-conditioning refrigerant main circuit, so that the diverted air-conditioning refrigerant is transported to the air pipe of the air-conditioning refrigerant main circuit or the air-conditioning indoor unit of the air-conditioning refrigerant main circuit after heat exchange in the energy storage module.

2. The air conditioning and cooling storage integrated system according to claim 1, characterized in that: The energy storage module comprises: A first heat exchange channel, one end of which is connected to the liquid pipe of the cold storage refrigerant main circuit, and the other end of which is respectively connected to the gas pipe of the cold storage refrigerant main circuit and the cold storage device; A second heat exchange channel, one end of which is connected to the liquid pipe of the air conditioning refrigerant main circuit, and the other end of which is respectively connected to the gas pipe of the air conditioning refrigerant main circuit and the air conditioning indoor unit; and The energy storage material is distributed around the first heat exchange channel and the second heat exchange channel.

3. The air conditioning and cooling storage integrated system according to claim 2, characterized in that: The energy storage module further includes: A first electronic expansion valve, disposed in the first heat exchange channel; The second electronic expansion valve is arranged in the second heat exchange channel.

4. The air conditioning and cooling storage integrated system according to claim 2 or 3, characterized in that: The flow diversion control module comprises: A first shunt control unit is configured to control the first shunt heat exchange flow path to shunt the cold storage refrigerant of the cold storage refrigerant main circuit, so that the cold storage refrigerant passing through the first heat exchange channel is transported to the air pipe of the cold storage refrigerant main circuit or the cold storage device; The second diversion control unit is configured to control the second diversion heat exchange flow path to divert the air-conditioning refrigerant of the air-conditioning refrigerant main circuit, so that the air-conditioning refrigerant passing through the second heat exchange channel is transported to the air pipe of the air-conditioning refrigerant main circuit or the air-conditioning indoor unit.

5. The air conditioning and cooling storage integrated system according to claim 4, characterized in that: The first shunt control unit comprises: A first solenoid valve is provided on a pipeline connecting the first heat exchange channel to the cold storage refrigerant main circuit gas pipe; The second solenoid valve is arranged on a pipeline connecting the first heat exchange channel to the cold storage device.

6. The air conditioning and cooling storage integrated system according to claim 5, characterized in that: The first flow distribution control unit further includes: The third solenoid valve is arranged on the pipeline connecting the first heat exchange channel to the liquid pipe of the cold storage refrigerant main circuit.

7. The air conditioning and cooling storage integrated system according to claim 5, characterized in that: in, There are multiple cold storage devices, and accordingly, there are multiple second solenoid valves, which are the same in number as the cold storage devices, and each of the second solenoid valves is correspondingly arranged on a pipeline connecting the first heat exchange channel to each of the cold storage devices.

8. The air conditioning and cooling storage integrated system according to claim 4, characterized in that: The second flow diversion control unit comprises: A fourth solenoid valve is provided on a pipeline connecting the second heat exchange channel to the air pipe of the air conditioning refrigerant main circuit; The fifth solenoid valve is arranged on a pipeline connecting the second heat exchange channel to the air conditioner indoor unit.

9. The air conditioning and cooling storage integrated system according to claim 8, characterized in that: The second flow distribution control unit further includes: The sixth solenoid valve is arranged on the pipeline connecting the second heat exchange channel to the liquid pipe of the air-conditioning refrigerant main circuit.

10. The air conditioning and cooling storage integrated system according to claim 8, characterized in that: in, There are multiple air-conditioning indoor units, and accordingly, there are multiple fifth solenoid valves, which are the same in number as the air-conditioning indoor units, and each of the fifth solenoid valves is correspondingly arranged on a pipeline connecting the second heat exchange channel to each of the air-conditioning indoor units.

11. The air conditioning and cooling storage integrated system according to claim 1, characterized in that: The air conditioning and cold storage integrated system also includes: The temperature detection module is configured to detect the temperature of the refrigerant on the first shunt heat exchange flow path to enter the energy storage module, the temperature of the refrigerant coming out of the energy storage module on the first shunt heat exchange flow path, the temperature of the refrigerant on the second shunt heat exchange flow path to enter the energy storage module, and the temperature of the refrigerant coming out of the energy storage module on the second shunt heat exchange flow path.

12. The air conditioning and cooling storage integrated system according to claim 11, characterized in that: The temperature detection module comprises: A first temperature detection device and a second temperature detection device are respectively arranged on pipelines on both sides of the energy storage module on the first shunt heat exchange flow path; The third temperature detection device and the fourth temperature detection device are respectively arranged on pipelines on both sides of the energy storage module on the second shunt heat exchange flow path.

13. A control method for an air conditioning and cooling storage integrated system, characterized in that: The method is applied to the air conditioning cold storage integrated system according to any one of claims 1 to 12, and the method comprises: Determine the current electricity consumption period; Based on the determined electricity consumption period, the first shunt heat exchange flow path and the second shunt heat exchange flow path of the air-conditioning and cooling storage integrated system are controlled separately.

14. The method according to claim 13, characterized in that The first shunt heat exchange flow path and the second shunt heat exchange flow path of the air-conditioning and cooling-storage integrated system are controlled separately based on the determined power consumption period, including: If the current period is off-peak, the first shunt heat exchange flow path is configured to: make the cold storage refrigerant shunted by the first shunt heat exchange flow path form an air pipe for transporting to the cold storage refrigerant main circuit, and adjust the opening of the first shunt heat exchange flow path to shunt the cold storage refrigerant to the maximum preset opening; According to the cooling capacity of the energy storage module, it is determined whether the conditions for stopping the cold storage refrigerant storage are met, and when it is determined that the conditions are met, the first shunt heat exchange flow path is closed, and the second shunt heat exchange flow path is configured as follows: the air-conditioning refrigerant shunted by the second shunt heat exchange flow path forms an air pipe that is transported to the air-conditioning refrigerant main circuit, and the opening of the second shunt heat exchange flow path for shunting the air-conditioning refrigerant is adjusted to the minimum preset opening.

15. The method according to claim 13, characterized in that The first shunt heat exchange flow path and the second shunt heat exchange flow path of the air-conditioning and cooling-storage integrated system are controlled separately based on the determined power consumption period, including: If the current period is a peak period, then according to the cooling capacity of the energy storage module, it is determined whether to release cooling capacity to the cold storage refrigerant in the first shunt heat exchange flow path, and if it is determined that it is, then The compressor in the cold storage refrigerant main circuit is configured to: operate at a reduced frequency; and The first diversion heat exchange flow path is configured to: enable the cold storage refrigerant diverted by the first diversion heat exchange flow path to be transported to the cold storage equipment, and adjust the opening of the first diversion heat exchange flow path to divert the cold storage refrigerant to a maximum preset opening.

16. The method according to claim 15, characterized in that The first shunt heat exchange flow path and the second shunt heat exchange flow path of the air-conditioning and cooling storage integrated system are controlled separately based on the determined power consumption period, and further includes: During the process of the energy storage module releasing cold energy to the cold storage refrigerant in the first bypass heat exchange flow path, it is determined whether the condition for stopping releasing cold energy to the cold storage refrigerant in the first bypass heat exchange flow path is met according to the cold energy situation of the energy storage module; when it is determined to be yes, the first bypass heat exchange flow path is closed, and the frequency reduction operation control of the compressor in the cold storage refrigerant main circuit is terminated.

17. The method according to claim 13, characterized in that The first shunt heat exchange flow path and the second shunt heat exchange flow path of the air-conditioning and cooling-storage integrated system are controlled separately based on the determined power consumption period, including: If it is during the normal power period, Controlling the first shunt heat exchange flow path according to the cooling capacity of the energy storage module, the set temperature of the cold storage device, and the detected ambient temperature; and The second shunt heat exchange flow path is controlled according to the cooling capacity of the energy storage module, the set temperature of the air-conditioning indoor unit, and the detected ambient temperature.

18. The method according to claim 17, characterized in that The controlling of the first shunt heat exchange flow path according to the cooling capacity of the energy storage module, the set temperature of the cold storage device, and the detected ambient temperature includes: According to the cooling capacity of the energy storage module, the set temperature of the cold storage device and the detected ambient temperature, it is determined whether the conditions for auxiliary cooling of the cold storage device are met, and if the conditions are met, The compressor in the cold storage refrigerant main circuit is configured to: operate at a reduced frequency; The first shunt heat exchange flow path is configured to: allow the cold storage refrigerant shunted by the first shunt heat exchange flow path to be transported to the cold storage equipment; and The target opening degree of the first shunt heat exchange flow path for shunting the cold storage refrigerant is determined according to the set temperature of the cold storage equipment and the detected ambient temperature, and the opening degree of the first shunt heat exchange flow path for shunting the cold storage refrigerant is adjusted according to the determined target opening degree.

19. The method according to claim 18, characterized in that in, When there are multiple cold storage devices, the cold storage devices that need auxiliary refrigeration are determined according to the set temperatures of the cold storage devices and the detected ambient temperature, and the diverted cold storage refrigerant is transported to the determined cold storage devices that need auxiliary refrigeration.

20. The method according to any one of claims 17 to 19, characterized in that: The controlling of the first shunt heat exchange flow path according to the cooling capacity of the energy storage module, the set temperature of the cold storage device and the detected ambient temperature also includes: According to the cooling capacity of the energy storage module, the set temperature of the cold storage device and the detected ambient temperature, it is determined whether the cold storage refrigerant energy storage conditions are met, and if they are met, The first flow-dividing heat exchange flow path is configured such that the cold storage refrigerant diverted by the first flow-dividing heat exchange flow path forms an air pipe for transporting to the cold storage refrigerant main circuit; and The target opening degree of the first shunt heat exchange flow path for shunting the cold storage refrigerant is determined according to the set temperature of the cold storage equipment and the detected ambient temperature, and the opening degree of the first shunt heat exchange flow path for shunting the cold storage refrigerant is adjusted according to the determined target opening degree.

21. The method according to claim 20, characterized in that The method further comprises: According to the cooling capacity of the energy storage module, it is judged whether the energy storage module has completed cooling, and when it is judged that cooling is completed, Closing the first split flow heat exchange path; and The second bypass heat exchange flow path is configured to: make the air-conditioning refrigerant bypassed by the second bypass heat exchange flow path form an air pipe for transporting to the air-conditioning refrigerant main circuit, and adjust the opening of the second bypass heat exchange flow path to bypass the air-conditioning refrigerant to the minimum preset opening.

22. The method according to claim 17, characterized in that The controlling of the second shunt heat exchange flow path according to the cooling capacity of the energy storage module, the set temperature of the air conditioner indoor unit and the detected ambient temperature includes: According to the cooling capacity of the energy storage module, the set temperature of the air conditioner indoor unit and the detected ambient temperature, it is determined whether the conditions for auxiliary cooling of the air conditioner indoor unit are met, and if the conditions are met, The compressor in the main refrigerant circuit of the air conditioner is configured to: operate at a reduced frequency; The second flow-dividing heat exchange flow path is configured to: allow the air-conditioning refrigerant diverted by the second flow-dividing heat exchange flow path to be transported to the air-conditioning indoor unit; and The target opening degree of the second bypass heat exchange flow path for bypassing the air conditioning refrigerant is determined according to the set temperature of the air conditioning indoor unit and the detected ambient temperature, and the opening degree of the second bypass heat exchange flow path for bypassing the air conditioning refrigerant is adjusted according to the determined target opening degree.

23. The method according to claim 22, characterized in that in, When there are multiple air-conditioning indoor units, the air-conditioning indoor units that need auxiliary cooling are determined based on the set temperatures of the respective air-conditioning indoor units and the detected ambient temperature, and the diverted air-conditioning refrigerant is transported to the determined air-conditioning indoor units that need auxiliary cooling.

24. The method according to claim 17, 22 or 23, characterized in that The controlling of the second shunt heat exchange flow path according to the cooling capacity of the energy storage module, the set temperature of the air conditioner indoor unit and the detected ambient temperature also includes: According to the cooling capacity of the energy storage module, the set temperature of the air conditioner indoor unit and the detected ambient temperature, it is determined whether the air conditioner refrigerant energy storage condition is met, and if it is met, The second flow-dividing heat exchange flow path is configured such that the air-conditioning refrigerant diverted by the second flow-dividing heat exchange flow path forms an air pipe for transporting to the air-conditioning refrigerant main circuit; and The target opening degree of the second bypass heat exchange flow path for bypassing the air conditioning refrigerant is determined according to the set temperature of the air conditioning indoor unit and the detected ambient temperature, and the opening degree of the second bypass heat exchange flow path for bypassing the air conditioning refrigerant is adjusted according to the determined target opening degree.

25. The method according to claim 24, characterized in that The controlling of the second shunt heat exchange flow path according to the cooling capacity of the energy storage module, the set temperature of the air conditioner indoor unit and the detected ambient temperature also includes: According to the cooling capacity of the energy storage module, it is judged whether the energy storage module has completed cold storage, and when it is judged that cold storage is completed, the second shunt heat exchange flow path is configured as follows: the opening of the second shunt heat exchange flow path to shunt the air-conditioning refrigerant is adjusted to a minimum preset opening.

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