A cold storage complete set of devices for distributed cold storage

Abstract

The present invention relates to the technical field of refrigeration and cold storage equipment, and specifically to a distributed cold storage and cold-use complete device. The distributed cold storage and cold-use complete device provided by the present invention has multiple use states to meet different practical needs. Taking the use of the device in a food cold storage as an example, in addition to meeting normal use, it can store cold during low-peak electricity consumption, and release the stored cold during peak electricity consumption or when the demand for cold is large; it can release a large amount of stored cold energy in a short time while refrigerating to increase the refrigeration power; it can store cold during low-peak electricity consumption at night, and reduce power consumption by releasing the stored cold energy during peak electricity consumption during the day. At the same time, the distributed cold storage device can release cold energy from different directions and positions when releasing cold energy, and can quickly and evenly freeze food to the required temperature. It has the characteristics of being able to store cold, avoiding peak electricity consumption, and increasing refrigeration output in a short time, and having higher adaptability.

Description

Technical Field

[0001] The present invention relates to the technical field of refrigeration and cold storage equipment, and particularly to a distributed cold storage and cold utilization complete set of devices. Background Art

[0002] The invention of the compression pump has enabled low-temperature devices such as refrigerators, cold storages, and air conditioners to be used in people's daily lives, greatly improving people's quality of life. When large cold storages or large central air-conditioning equipment operate at full power for refrigeration, a large amount of electricity is required. Due to the reasons of the power system, the power supply capacity of the power systems in most cities basically remains unchanged, but the peak electricity consumption in a city is not necessarily fixed. For example, the electricity required for full-power refrigeration in a large cold storage is completely different from that required for maintaining low temperature; the electricity demand in a city during the day in summer is also completely different from that at night. If multiple large power-consuming devices are turned on simultaneously, the city's power system may be overwhelmed, resulting in frequent tripping, or even power outages, causing property losses. For example, if a large cold storage needs to freeze a large number of foods, such as seafood, during the peak electricity consumption period in the daytime in summer, and the power of the refrigeration equipment is insufficient, it will take a longer time, and the food cannot be quickly cooled and frozen, and cannot be quickly and evenly frozen to the required temperature. At this time, it may affect the freezing quality of the food and even cause the food to deteriorate, resulting in losses. At the same time, when a cold storage is refrigerating, its maximum refrigeration power is certain. If you want to increase the refrigeration power, you need to replace or add refrigeration equipment. However, refrigeration equipment with a larger total refrigeration power does not always operate at full power, which causes certain cost waste. Summary of the Invention

[0003] In order to solve the above deficiencies of the prior art, the purpose of the present invention is to provide a distributed cold storage and cold utilization complete set of devices, which can store a certain amount of cold energy during the low electricity consumption period at night in the city. If this device is used for cold storage refrigeration, its distributed cold storage device can directly release the stored cold energy from different positions of the cold storage, directly increase the refrigeration power of the cold storage in a short time, accelerate the refrigeration speed of the cold storage, and ensure that the food is quickly and evenly frozen to prevent deterioration.

[0004] The technical solution adopted by the present invention is as follows: A distributed cold storage and cold utilization complete set of devices includes a controller, a compression pump, a plurality of cold storage devices, a plurality of cold storage modules, and a plurality of refrigeration modules;

[0005] The cold storage module includes a cold storage evaporator and a cold storage condenser, and the refrigeration module includes a refrigeration evaporator and a refrigeration condenser. The cold storage evaporator and the refrigeration condenser are arranged in the cold storage device; the cold storage evaporator and the cold storage condenser are connected to the compression pump through pipelines, and the refrigeration evaporator and the refrigeration condenser are connected to the compression pump through pipelines;

[0006] An outlet diverter valve is provided at the refrigerant outlet of the compression pump, and each cold storage evaporator and refrigeration evaporator are connected to the outlet diverter valve through pipelines;

[0007] An inlet diverter valve is provided at the refrigerant inlet of the compression pump, and each cold storage condenser and refrigeration condenser are connected to the inlet diverter valve through pipelines;

[0008] A standby refrigeration pipeline is also connected in series between the inlet of the cold storage condenser and the outlet of the refrigeration evaporator;

[0009] The compression pump and the controller are electrically connected by signals.

[0010] Furthermore, oil separators are installed on the pipelines at the inlet of the cold storage condenser, on the pipelines at the inlet of the refrigeration condenser, and on the pipeline at the refrigerant outlet of the compression pump.

[0011] Furthermore, automatic solenoid valves are also provided on the connecting pipelines at both ends of the compression pump, the cold storage evaporator, the cold storage condenser, the refrigeration evaporator and the refrigeration condenser, and on the standby refrigeration pipeline connected in series between the inlet of the cold storage condenser and the outlet of the refrigeration evaporator; the automatic solenoid valves are signal-connected to the controller. During use, the working states of each cold storage evaporator, cold storage condenser, refrigeration evaporator or refrigeration condenser are controlled through the automatic solenoid valves.

[0012] Furthermore, the cold storage device adopts a sealed container, and an openable access door, air inlet and air outlet are provided on the sealed container; electromagnetic doors are respectively provided at the air inlet and air outlet, ventilation pipelines are provided outside the electromagnetic doors, and a fan is also provided at the air outlet; a temperature sensor is provided inside the sealed container; a cold storage liquid is stored inside the sealed container, and the cold storage evaporator and the refrigeration condenser are arranged in the cold storage liquid inside the sealed container; the fan, the electromagnetic doors and the temperature sensor are electrically connected by signals to the controller.

[0013] Furthermore, a heat insulation layer is provided outside the cold storage device to improve the ability of the inside of the cold storage device to maintain a low temperature.

[0014] Furthermore, there are at least two cold storage devices, refrigeration modules and cold storage modules respectively.

[0015] It should be noted that when the entire device is in use, it is divided into four states: normal use, cold storage use, short-time large-scale cooling use, and peak-shifting use.

[0016] During normal use, control each automatic solenoid valve so that the flow direction of the refrigerant is the compression pump, the refrigeration evaporator, the cold storage condenser, and finally back to the compression pump. At this time, both the total power and the refrigeration output power of the entire device are in the normal normal state.

[0017] During cold storage use, control each solenoid valve so that the flow direction of the refrigerant is the compression pump, the cold storage evaporator, the cold storage condenser, and finally back to the compression pump. At this time, the total power and the refrigeration output power of the entire device are in the normal state. It should be noted that the time period of this working state should be during the low peak period of night electricity consumption or the early cold storage period when the current refrigeration requirement is not high in cold storage etc.

[0018] When a large amount of cold is supplied in a short time, it should be noted that this state needs to be carried out after cold storage use. When using, control each solenoid valve so that the flow direction of the refrigerant is the compression pump, the refrigeration evaporator, the cold storage condenser, and finally back to the compression pump. At the same time, open the electromagnetic doors at the air inlet and outlet of the cold storage device, and turn on the fan at the outlet at the same time to blow cold air out of the cold storage device to increase the cold output of the entire device. At this time, the total power of the entire device is in the normal state, and the refrigeration output power is in the increased state.

[0019] When using during peak load shifting, similarly, this state needs to be carried out after cold storage use. When using, control each solenoid valve so that the flow direction of the refrigerant is the compression pump, the refrigeration evaporator, the refrigeration condenser, and finally back to the compression pump. At this time, since the refrigeration condenser is in the cold storage device with a lower temperature, the condensation speed will be faster and the power consumed by the compression pump will be less. At this time, the total power of the entire device is in the lower state, and the refrigeration output power is in the normal increased state.

[0020] Beneficial effects:

[0021] A distributed cold storage and cold use complete set of devices provided by the present invention has multiple usage states to meet different actual needs. Taking the application of this device in a food cold storage as an example, in addition to meeting normal use; it can store cold during the low peak period of electricity consumption, and release the stored cold during the peak period of electricity consumption or when the cold demand is large; it can release a large amount of stored cold energy in a short time while refrigerating to increase the refrigeration power; it can store cold during the low peak period of night electricity consumption and reduce power consumption by releasing the stored cold energy during the peak period of day electricity consumption. At the same time, when the distributed cold storage device releases cold energy, it can release cold energy from different directions and positions, and can quickly and evenly freeze food to the required temperature. It has the characteristics of being able to store and use cold, avoid the peak period of electricity consumption, and increase the refrigeration output in a short time, and has a higher adaptability. Description of the drawings

[0022] Figure 1 It is a schematic diagram of a distributed cold storage and cold use complete set of devices of the present invention;

[0023] Figure 2 It is a schematic diagram of the cold storage device of a distributed cold storage and cold use complete set of devices of the present invention;

[0024] Among them, A is a compression pump, B1 is a cold storage evaporator, C1 is a cold storage condenser, B2 is a refrigeration evaporator, C2 is a refrigeration condenser, D1 is an outlet diverter valve, D2 is an inlet diverter valve, F1 - F14 are automatic solenoid valves, Y is an oil separator, E is a cold storage unit, 1 is a sealed container, 2 is an access door, 3 is an air inlet, 4 is an air outlet, 5 is a fan, 6 is a temperature sensor, 7 is an ice - making mold, 8 is a ventilation duct, 9 is an electromagnetic door, 10 is a thermal insulation layer;

[0025] Among them, B1 and C1 form a cold storage module, and B2 and C2 form a refrigeration module;

[0026] The controller is not shown in the figure. Specific implementation mode

[0027] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art belong to the protection scope of the present invention.

[0028] As Figure 1 shown, a distributed cold - storage and cold - using complete set of devices includes a controller 1, a compression pump A, a plurality of cold storage units E, a plurality of cold storage modules, and a plurality of refrigeration modules;

[0029] The cold storage module includes a cold storage evaporator B1 and a cold storage condenser C1, and the refrigeration module includes a refrigeration evaporator B2 and a refrigeration condenser C2. Among them, the cold storage evaporator B1 and the refrigeration condenser C2 are arranged in the cold storage unit E; the cold storage evaporator B1 and the cold storage condenser C1 are connected to the compression pump A through pipelines, and the refrigeration evaporator B2 and the refrigeration condenser C2 are connected to the compression pump A through pipelines;

[0030] An outlet diverter valve D1 is arranged at the refrigerant outlet of the compression pump A, and each cold storage evaporator B1 and refrigeration evaporator B2 are connected to the outlet diverter valve D1 through pipelines;

[0031] An inlet diverter valve D2 is arranged at the refrigerant inlet of the compression pump A, and each cold storage condenser C1 and refrigeration condenser C2 are connected to the inlet diverter valve D2 through pipelines;

[0032] A spare refrigeration pipeline is also connected in series between the inlet of the cold storage condenser C1 and the outlet of the refrigeration evaporator B2;

[0033] The compression pump A is electrically connected to the controller. In this embodiment, the controller is a microcomputer.

[0034] In this embodiment, oil separators Y are installed on the pipelines at the inlets of the cold storage condenser C1, at the inlets of the refrigeration condenser C2, and on the pipeline at the refrigerant outlet of the compression pump A.

[0035] In this embodiment, automatic solenoid valves are also provided on the connecting pipelines at both ends of the compression pump A, the cold storage evaporator B1, the cold storage condenser C1, the refrigeration evaporator B2, and the refrigeration condenser C2, and on the standby refrigeration pipeline connected in series between the inlet of the cold storage condenser C1 and the outlet of the refrigeration evaporator B2; the automatic solenoid valves are signal-connected to the controller. During use, the working states of the respective cold storage evaporators B1, cold storage condensers C1, refrigeration evaporators B2, or refrigeration condensers C2 are controlled through the automatic solenoid valves.

[0036] In this embodiment, the cold storage device E uses a sealed container 1, and an openable access door 2, an air inlet 3, and an air outlet 4 are provided on the sealed container 1; electromagnetic doors 9 are respectively provided at the air inlet 3 and the air outlet 4, a ventilation pipeline 8 is provided outside the electromagnetic doors 9, and a fan 5 is also provided at the air outlet 4; a temperature sensor 6 is provided inside the sealed container 1; a cold storage liquid is stored in the sealed container 1, and the cold storage liquid is selected as water, and at the same time, the water is stored in an ice-making mold 7 inside the sealed container 1. The cold storage evaporator B1 and the refrigeration condenser C2 can be arranged in the cold storage liquid (i.e., in the ice-making mold 7) inside the sealed container 1 during installation; the fan 5, the electromagnetic doors 9, and the temperature sensor 6 are electrically signal-connected to the controller.

[0037] It should be noted that in this embodiment, devices such as expansion valves are not described. This description only generally describes the principle of the entire refrigeration device, and expansion valves and other devices need to be installed at appropriate positions during specific use.

[0038] In this embodiment, a heat insulation layer 10 is provided outside the sealed container 1 to improve the ability of the cold storage device to maintain a low temperature inside.

[0039] In this embodiment, there are two cold storage devices E, refrigeration modules, and cold storage modules respectively.

[0040] Taking a large cold storage as an example, the device is installed at a suitable position in the cold storage. Two refrigeration evaporators B2 are installed at suitable positions inside the cold storage, and the ventilation pipeline 8 connected to the air outlet of the cold storage device E is also installed at a suitable position in the cold storage. When using this distributed cold storage and cold utilization complete set of devices, there are generally the following four usage situations:

[0041] First, during normal use, control each automatic solenoid valve so that the flow direction of the refrigerant is the compression pump A, the refrigeration evaporator B2, the cold storage condenser C1, and finally back to the compression pump A. At this time, both the total power consumption of the entire device and the cold quantity of the refrigeration output are in a normal state.

[0042] Second, when using the cold storage, control each automatic solenoid valve so that the flowing direction of the refrigerant is the compression pump A, the cold storage evaporator B1, the cold storage condenser C1, and finally back to the compression pump A. At this time, the total power consumption of the entire device and the cooling capacity of the refrigeration output are in the normal state. It should be noted that the time period of this working state should be during the low peak period of night electricity consumption or the advanced cold storage time period when the current refrigeration requirement is not high in cold storage and the like. At the same time, obtain the temperature of the water in the cold storage E according to the temperature sensor 6 in the cold storage E. When needed, this device can also be used to make ice cubes, and the ice cubes can be taken out for other uses.

[0043] Third, when a large amount of cooling is needed for use in a short time, such as when a batch of seafood needs to be frozen as soon as possible in a cold storage in a short time. It should be noted that this state needs to be carried out after the cold storage liquid in the cold storage E is used for cold storage. When using, control each solenoid valve so that the flowing direction of the refrigerant is the compression pump A, the refrigeration evaporator B2, the cold storage condenser C1, and finally back to the compression pump A. At the same time, open the solenoid valves 9 at the air inlet 3 and the air outlet 4 in the cold storage E, and at the same time turn on the fan 5 at the air outlet 4 to blow cold air from the cold storage E to improve the cooling capacity output of the entire device. At this time, there are 4 cold sources delivering cold energy to the cold storage, and cold energy exceeding the refrigeration power of the compression pump A can be provided in a short time, improving the freezing speed of seafood products. At the same time, due to multiple cold sources, the freezing speed is more uniform, and there will be no phenomenon of too large temperature difference in the cold storage, ensuring that the food does not deteriorate as much as possible. At this time, the total power consumption of the entire device is in the normal state, and the refrigeration output cooling capacity is in the increased state.

[0044] Fourth, when using during peak load shifting (such as when it is needed to use during the peak period of daytime electricity consumption), similarly, this state needs to be carried out after the cold storage liquid in the cold storage E is used for cold storage. When using, control each solenoid valve so that the flowing direction of the refrigerant is the compression pump A, the refrigeration evaporator B2, the refrigeration condenser C2, and finally back to the compression pump A. At this time, since the refrigeration condenser C2 is in the cold storage E with a lower temperature, the condensation speed will be faster, and the power consumed by the compression pump A will be less. At this time, the total power consumption of the entire device is in the lower state, and the refrigeration output cooling capacity is in the normal state.

[0045] The above are only the preferred embodiments of the present invention and are not used to limit the present invention. All any modifications, equivalent replacements, improvements, etc. within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A cold storage complete set of devices for distributed cold storage, characterized in that: It includes a controller, a compression pump, a plurality of cold storage devices, a plurality of cold storage modules and a plurality of refrigeration modules; The cold storage module includes a cold storage evaporator and a cold storage condenser, and the refrigeration module includes a refrigeration evaporator and a refrigeration condenser, wherein the cold storage evaporator and the refrigeration condenser are arranged in the cold storage device; the cold storage evaporator and the cold storage condenser are connected to the compression pump through pipelines, and the refrigeration evaporator and the refrigeration condenser are connected to the compression pump through pipelines; An outlet diverter valve is arranged at the refrigerant outlet of the compression pump, and each cold storage evaporator and refrigeration evaporator are connected to the outlet diverter valve through pipelines; An inlet diverter valve is arranged at the refrigerant inlet of the compression pump, and each cold storage condenser and refrigeration condenser are connected to the inlet diverter valve through pipelines; A spare refrigeration pipeline is also connected in series between the inlet of the cold storage condenser and the outlet of the refrigeration evaporator; The compression pump and the controller are electrically connected by signals.

2. The cold storage complete set of equipment for distributed cold storage according to claim 1, characterized in that: Oil separators are installed on the pipelines at the inlet of the cold storage condenser, on the pipelines at the inlet of the refrigeration condenser, and on the pipeline at the refrigerant outlet of the compression pump.

3. The cold storage complete set device for distributed cold storage according to claim 1, characterized in that: Automatic solenoid valves are also arranged on the connecting pipelines at both ends of the compression pump, the cold storage evaporator, the cold storage condenser, the refrigeration evaporator and the refrigeration condenser, and on the spare refrigeration pipeline connected in series between the inlet of the cold storage condenser and the outlet of the refrigeration evaporator; the automatic solenoid valves are signal-connected to the controller.

4. A cold storage complete set for distributed cold storage according to claim 1, characterized in that: The cold storage device adopts a sealed container, and an openable access door, an air inlet and an air outlet are arranged on the sealed container; electromagnetic doors are respectively arranged at the air inlet and the air outlet, ventilation pipelines are arranged outside the electromagnetic doors, and a fan is also arranged at the air outlet; a temperature sensor is arranged in the sealed container; a cold storage liquid is stored in the sealed container, and the cold storage evaporator and the refrigeration condenser are arranged in the sealed container; the fan, the electromagnetic door and the temperature sensor are electrically connected to the controller by signals.

5. A cold storage complete set for distributed cold storage according to claim 1, characterized in that: A heat insulation layer is arranged outside the cold storage device.

6. A cold storage complete set device for distributed cold storage according to claim 1, characterized in that: There are at least two cold storage devices, refrigeration modules and cold storage modules respectively.

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