Refrigeration house integrated with phase change energy storage function
By setting up cold storage ice blocks above the cold storage shelves and using off-peak electricity to charge the cold, the problem of balanced energy consumption in the cold storage during the day and night is solved, energy savings and temperature stability are achieved, and the life of the equipment is extended.
Patent Information
- Application Number
- CN202422381672.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-29
- Publication Date
- 2025-09-12
- Estimated Expiration
- 2034-09-29
AI Technical Summary
The existing cold storage uses refrigeration equipment and fans to control temperature. The energy consumption remains the same during the day and night, the electricity cost is high, and the equipment is frequently started and stopped.
Ice blocks are installed above the cold storage shelves, and valley electricity is used to charge the cold room at night, while peak electricity is used to discharge the cold room during the day. This reduces the start and stop frequency of refrigeration equipment and fans, and concentrates energy consumption at night.
It reduces the total energy consumption of cold storage by 5%-20%, prolongs the life of equipment, improves temperature stability, and avoids micro-melting of goods and temperature stratification.
Smart Images
Figure CN223331987U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the field of cold storage equipment and relates to a cold storage energy storage structure of a cold storage, in particular to a cold storage with an integrated phase change energy storage function. Background Art
[0002] Low-temperature storage is a method of preserving and storing many perishable goods. This is generally achieved through cold storage. With the development of cold chain logistics technology, the demand for cold storage construction is increasing across the country. The temperatures within cold storage vary depending on the storage temperatures of the goods. Cold storage uses insulating materials to construct insulated walls and refrigeration equipment to produce low-temperature gas. Based on internal temperature monitoring, when the internal temperature falls below the set point, a fan pumps the low-temperature gas into the cold storage for cooling. To fully utilize the storage space within the cold storage, shelves are generally set up for stacking goods in multiple layers. Traditional cold storage only controls the temperature through refrigeration equipment. During use, the refrigeration equipment and fans need to be activated from time to time to maintain the temperature. Energy consumption during the day and at night is roughly the same, resulting in high electricity costs. Utility Model Content
[0003] The purpose of the utility model is to solve the problem that the temperature control of the existing cold storage is achieved only by refrigeration equipment and fans, the energy consumption is the same during the day and night, and the electricity cost is high. The utility model provides a cold storage with an integrated phase change energy storage function, in which cold storage ice blocks are arranged above the shelves in the cold storage, and the cold storage ice blocks are charged with cold during the off-peak period at night. Basically, no electricity is required during the peak period during the day. At the same time, the refrigeration equipment and the fan are concentratedly operated during the off-peak period at night, avoiding the frequent start and stop of the refrigeration equipment and the fan.
[0004] The technical solution adopted by the utility model to solve its technical problems is: a cold storage with integrated phase change energy storage function, including a cold storage, wherein a plurality of shelves are arranged in the cold storage, and a high rack is provided above the shelves, and a plurality of cold storage ice blocks are evenly arranged on the high rack. The high rack is a hollow structure below the cold storage ice blocks for cooling air to flow downward.
[0005] This device adds a cold storage structure above the shelves of the existing cold storage, making additional use of the upper space on the top of the shelves, with little impact on the original cold storage capacity. An elevated rack is added above the shelves, and a cold storage ice ridge is fixed on the elevated rack. The cold storage ice ridge is charged with cold during the off-peak period at night and released during the peak period during the day, concentrating the cold storage energy consumption during the off-peak period at night, thereby saving electricity costs. The fans and refrigeration equipment are concentrated in continuous operation at night, reducing the frequent start and stop of the fans and refrigeration equipment, improving the efficiency of the refrigeration equipment units, and not only extending the service life, but also, according to actual use tests, can reduce the total energy consumption of the cold storage by 5%-20% depending on the storage capacity of the cold storage. The use of cold storage ice ridges to continuously control the temperature of the cold storage increases the stability of the cold storage temperature, avoids the micro-melting of goods in the cold storage, and prevents temperature stratification in the cold storage.
[0006] Preferably, the cold storage ice bank is filled with a phase-change cold storage medium, the phase-change temperature of which is 1-3°C lower than the rated daytime storage temperature of the cold storage, and the nighttime storage temperature of the cold storage is 1-3°C lower than the phase-change temperature of the phase-change cold storage medium. The phase-change cold storage medium can be selected from existing cold storage materials, and a cold storage material with a suitable phase-change temperature is selected according to the cold storage storage temperature. When charging cold at night, the cold storage temperature is lower than the phase-change temperature of the phase-change cold storage medium to ensure the charging temperature difference. The phase-change temperature of the phase-change cold storage medium should be slightly lower than the daytime storage temperature of the cold storage to ensure that the daytime cold storage temperature meets the standard.
[0007] Preferably, the elevated rack is installed on top of a shelf. The shelf includes four upright posts, with one or more layers of shelves arranged between the posts. Four plug-in rods are provided at the bottom of the elevated rack, corresponding to the four upright posts. A crossbeam is provided between the tops of the plug-in rods. A plurality of retaining rods are evenly arranged between the mutually parallel crossbeams. Adjacent retaining rods are aligned with each other and have ice pack slots. The cold storage ice packs are in the form of sheets, and the two lower corners of the cold storage ice packs are clamped in the ice pack slots of adjacent retaining rods that are aligned with each other. The required cold storage ice packs can be neatly inserted and arranged on the retaining rods in the form of inserts, and the spaces between adjacent retaining rods are hollowed out to avoid obstructing the downward flow of cold air.
[0008] As another preferred embodiment, the elevated frame is suspended on the top wall of the cold storage, and a suspension rod is set downward from the top wall of the cold storage, and beams are suspended between the suspension rods. A number of retaining rods are evenly arranged between the beams parallel to each other, and ice row slots are provided between adjacent retaining rods aligned with each other. The cold storage ice row is in the shape of a sheet, and the two lower corners of the cold storage ice row are clamped in the ice row slots aligned with adjacent retaining rods.
[0009] The elevated rack can be installed on the top of the shelf or hung on the top wall of the cold storage. The cold storage ice row is set high in the cold storage, and the cold air can flow down smoothly to ensure continuous and stable temperature control in the cold storage.
[0010] Preferably, ice pack slots are provided on both sides of the same holding rod, and a partition bar is provided between the ice pack slots on both sides.
[0011] Preferably, ice pack slots are evenly arranged on the holding rod.
[0012] Preferably, the connecting rod, the cross beam and the retaining rod are all square tubes.
[0013] Preferably, the top surface of the connecting rod is provided with an upwardly facing U-shaped groove, within which the end of the crossbeam rests. A horizontal adjustment groove is provided at the end of the crossbeam, and an adjustment pin is provided between the two walls of the U-shaped groove, extending through the horizontal adjustment groove. The adjustment pin slides within the horizontal adjustment groove to adjust the support position of the connecting rod and crossbeam. The lower portion of the connecting rod is connected to the top of the shelf column, and the crossbeam rests on the upper end. The horizontal adjustment groove at the end of the crossbeam allows for narrow adjustment to the shelf width.
[0014] Preferably, cross beams are respectively provided between the tops of the two connecting rods at the front side of the shelf and between the tops of the two connecting rods at the rear side of the shelf.
[0015] The utility model adds an elevated frame above the cold storage shelves and places cold storage ice blocks on them, which basically does not affect the storage capacity. The cold storage ice blocks charge cold during the off-peak period at night and release cold during the peak period during the day, concentrating the energy consumption of the cold storage during the off-peak period at night, thereby saving electricity costs. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] The present invention will be further described below with reference to the accompanying drawings.
[0017] Figure 1 This is a schematic diagram of the first cold storage structure of the present utility model.
[0018] Figure 2 This utility model Figure 1 A schematic diagram of a shelf structure in .
[0019] Figure 3 This utility model Figure 1 A schematic diagram of a storage rack structure in FIG.
[0020] Figure 4 This is a schematic diagram of the second cold storage structure of the present invention.
[0021] In the figure: 1. Shelf, 2. Post, 3. Elevated rack, 4. Connecting rod, 5. Crossbeam, 6. Retaining rod, 7. Ice block, 8. Ice block slot, 9. Partition bar, 10. U-shaped slot, 11. Horizontal adjustment slot, 12. Adjustment pin, 13. Cold storage. DETAILED DESCRIPTION
[0022] The present invention will be further described below through specific embodiments in conjunction with the accompanying drawings.
[0023] Example 1: A cold storage with integrated phase change energy storage function, such as Figure 1 As shown. This device includes a cold storage 1, in which multiple rows of shelves 1 are arranged. Figure 2 As shown, the shelf 1 is a frame structure, and the shelf includes four columns 2, and one or more layers of shelves are arranged between the columns ( Figure 1 The top of the four columns 2 is provided with a mounting frame 3, on which ice blocks 7 are evenly fixed. Figure 3 As shown, four plug-in rods 4 are provided at the bottom of the elevated frame 3 in one-to-one correspondence with the four columns 2, and crossbeams 5 are provided between the tops of the two plug-in rods 4 on the front side of the shelf 1 and between the tops of the two plug-in rods 4 on the back side of the shelf 1. A number of retaining rods 6 are evenly arranged between the mutually parallel crossbeams 5. The plug-in rods 4, crossbeams 5 and retaining rods 6 are all square tubes. Ice row slots 8 are provided between adjacent retaining rods aligned with each other, and the cold storage ice row 7 is in the form of a sheet, and the two lower corners of the cold storage ice row 7 are clamped in the ice row slots 8 aligned with each other on adjacent retaining rods. As shown Figure 3 As shown, ice ditch slots 8 are provided on both sides of the same holding rod 6, and a partition bar 9 is provided between the ice ditch slots on both sides. The ice ditch slots 8 on the holding rod are evenly arranged.
[0024] like Figure 3 As shown, the top surface of the plug rod 4 is provided with a U-shaped groove 10 facing upward, the end of the beam is mounted in the U-shaped groove, the end of the beam is provided with a horizontal adjustment groove 11, and an adjustment pin 12 passing through the horizontal adjustment groove is provided between the two groove walls of the U-shaped groove.
[0025] The ice banks charge during nighttime off-peak periods and release during daytime peak periods, concentrating cold storage energy consumption during the off-peak periods and saving electricity costs. During nighttime charging, the cold storage temperature is kept below the phase change temperature of the phase-change refrigerant to ensure a consistent charging / cooling temperature difference. The phase change temperature of the phase-change refrigerant should be slightly lower than the cold storage temperature during the daytime to ensure the cold storage temperature meets the standard.
[0026] Example 2: A cold storage with integrated phase change energy storage function, such as Figure 4 As shown. The device includes a cold storage 1, in which multiple rows of shelves 1 are arranged. Figure 4 As shown, a mounted overhead frame 3 is suspended from the top wall of the cold storage, and cold storage ice slabs 7 are evenly fixed on the mounted overhead frame 3. The mounted overhead frame includes a suspension rod extending downward from the top wall of the cold storage, with crossbeams 5 arranged between the suspension rods. A number of retaining rods 6 are evenly arranged between the mutually parallel crossbeams 5. Ice slab slots 8 are aligned between adjacent retaining rods. The cold storage ice slabs 7 are sheet-shaped, and the lower corners of the cold storage ice slabs 7 are fixed in the ice slab slots 8 aligned between adjacent retaining rods. Ice slab slots 8 are provided on both sides of the same retaining rod 6, and a partition bar 9 is provided between the ice slab slots on both sides. The ice slab slots 8 are evenly arranged on the retaining rods.
Claims
1. A cold storage with integrated phase change energy storage function, comprising a cold storage, wherein a plurality of shelves are arranged in the cold storage, and wherein: The cold storage is provided with an elevated rack above the shelf, on which a number of cold storage ice rows are evenly arranged, and below the cold storage ice rows the elevated rack is a hollow structure for cooling air to flow downward.
2. The cold storage with integrated phase change energy storage function according to claim 1, characterized in that: The cold storage ice bank is filled with a phase change cold storage medium, the phase change temperature of the phase change cold storage medium is 1-3°C lower than the rated storage temperature of the cold storage during the day, and the nighttime storage temperature of the cold storage is 1-3°C lower than the phase change temperature of the phase change cold storage medium.
3. The cold storage with integrated phase change energy storage function according to claim 1, characterized in that: The elevated rack is arranged on the top of the shelf, and the shelf includes four columns. One or more layers of shelves are arranged between the columns. Four connecting rods are arranged at the bottom of the elevated rack in a one-to-one correspondence with the four columns. Cross beams are arranged between the tops of the connecting rods. A number of retaining rods are evenly arranged between the mutually parallel cross beams. Ice row slots are provided between adjacent retaining rods that are aligned with each other. The cold storage ice row is in the shape of a sheet, and the two lower corners of the cold storage ice row are clamped in the ice row slots aligned with adjacent retaining rods.
4. The cold storage with integrated phase change energy storage function according to claim 1, characterized in that: The elevated frame is suspended on the top wall of the cold storage, and a suspension rod is set downward from the top wall of the cold storage, and beams are suspended between the suspension rods. A number of retaining rods are evenly arranged between the mutually parallel beams, and ice row slots are provided between adjacent retaining rods aligned with each other. The cold storage ice row is in the shape of a sheet, and the two lower corners of the cold storage ice row are clamped in the ice row slots aligned with each other on adjacent retaining rods.
5. A cold storage with integrated phase change energy storage function according to claim 3 or 4, characterized in that: Ice row slots are provided on both sides of the same holding rod, and a partition bar is provided between the ice row slots on both sides.
6. A cold storage with integrated phase change energy storage function according to claim 3 or 4, characterized in that: Ice row slots are evenly arranged on the holding rods.
7. The cold storage with integrated phase change energy storage function according to claim 3, characterized in that: The connecting rod, the cross beam and the retaining rod are all square tubes.
8. The cold storage with integrated phase change energy storage function according to claim 3, characterized in that: The top surface of the connecting rod is provided with a U-shaped groove facing upwards, the end of the beam is mounted in the U-shaped groove, the end of the beam is provided with a horizontal adjustment groove, and an adjustment pin passing through the horizontal adjustment groove is provided between the two groove walls of the U-shaped groove.
9. The cold storage with integrated phase change energy storage function according to claim 3, characterized in that: Only a crossbeam is provided between the tops of the two plug-in rods on the front side of the shelf and between the tops of the two plug-in rods on the rear side of the shelf.