Ice storage device with novel structure
By utilizing the serpentine coil design within the coil frame and taking advantage of water temperature stratification, the problems of uneven ice melting and high cost in ice storage systems are solved, achieving efficient ice melting and reducing the cost of water distributors.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HANGZHOU SHENGBING ENERGY SAVING TECHNOLOGY CO LTD
- Filing Date
- 2025-07-16
- Publication Date
- 2026-05-19
AI Technical Summary
In existing ice storage systems, the horizontal flow of ice and water leads to uneven melting, with the high-temperature side melting quickly and the low-temperature side melting slowly. Furthermore, traditional water distributors increase costs and space requirements, and are difficult to effectively utilize the water temperature stratification phenomenon.
The design employs a serpentine coil within a coil frame, utilizing the coil frame as both a water distributor and collector. Through the design of the inlet, outlet, and air inlet, water temperature is utilized in a stratified manner, thereby increasing the ice-melting rate and reducing costs.
It achieves improved melting rate and uniformity, reduces water distributor cost and ice storage tank height, and can also be used as a gas distributor to improve heat exchange efficiency under different flow modes.
Smart Images

Figure CN224262011U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of refrigeration technology, and in particular relates to a novel ice storage device. Background Technology
[0002] In an ice storage cooling external ice melting system, the low-temperature ice water in the ice tank needs to be extracted, heated by heat exchange, and then returned to the ice storage tank. The design usually involves installing water distributors and water collectors at both ends of the ice storage coil, allowing the ice water to flow horizontally. To improve the ice melting rate, an air distributor is usually installed at the bottom.
[0003] Horizontal flow of ice water can lead to uneven melting, especially when multiple ice storage coils are arranged in an ice tank. The melting rate is fast on the high-temperature inlet side and slow on the low-temperature outlet side. This results in a large amount of ice remaining on the rear coils even after all the ice in the front coils has melted. Therefore, zoned control is required when making ice at night, otherwise excessive ice will form on the outlet coils.
[0004] Water in the 0-4℃ range has a temperature stratification, with the high temperature at the bottom and the low temperature at the top. Horizontal flow of ice water cannot effectively utilize this physical phenomenon.
[0005] The water distributor adopts a bottom-in, top-out mode, with high-temperature water entering from the bottom and low-temperature water flowing out from the top. It effectively utilizes the physical phenomenon of natural temperature stratification of water in the 0-4℃ range to obtain a lower outlet water temperature.
[0006] However, the water distributor adopts a bottom-in, top-out mode. In the traditional way, water distributors need to be installed on top of the coil and at the bottom. Usually, the ice storage tank area is large, so the cost of water distributors will be greatly increased. Moreover, installing water distributors at the top and bottom will occupy space and height, making the ice storage tank taller, increasing the size of the ice storage tank and increasing the cost of the ice storage tank. Utility Model Content
[0007] The purpose of this invention is to provide a novel ice storage device.
[0008] Therefore, the above-mentioned objective of the present invention is achieved through the following technical solution:
[0009] A novel ice storage device includes a coil frame, within which a serpentine coil and locking strips for positioning the coil are provided. The ends of the coil frame are equipped with a supply medium distribution box, a supply medium main pipe, a return medium distribution box, and a return medium main pipe.
[0010] The main supply pipe is connected to the supply distribution pipe box, and the two ends of the serpentine coil are respectively connected to the supply distribution pipe box and the return distribution pipe box. The return distribution pipe box is connected to the return main pipe.
[0011] The features are as follows: the coil frame is hollow inside to form an internal hollow channel, at least one end of the coil frame is provided with an opening to form a water inlet, water outlet or air inlet, and multiple openings are provided on the non-ends of the coil frame to form water inlets, water outlets or air inlets.
[0012] The end openings, internal hollow channels, and multiple non-end openings of the coil frame are connected to form a water inlet channel, a water outlet channel, or an air inlet channel.
[0013] While adopting the above technical solutions, this utility model may also adopt or combine the following technical solutions:
[0014] As a preferred technical solution of this utility model: the non-end opening on the bottom frame of the coil frame is a water inlet hole;
[0015] The water inlet of the coil frame, the internal hollow channel, and multiple water inlets are connected to form the water inlet channel.
[0016] As a preferred technical solution of this utility model: the non-end opening on the bottom frame of the coil frame is a water inlet, and the non-end opening on the top frame of the coil frame is a water outlet.
[0017] The water inlet, internal hollow channel, and multiple water inlet holes of the coil frame are connected to form a water inlet channel;
[0018] The water outlet, internal hollow channel, and multiple water outlet holes of the coil frame are connected to form a water outlet channel;
[0019] The inlet and outlet channels do not intersect within the hollow channels inside the coil frame.
[0020] As a preferred technical solution of this utility model: some non-end openings on the bottom frame of the coil frame are water inlets, and some non-end openings on the bottom frame of the coil frame are air inlets.
[0021] The water inlet, internal hollow channel, and multiple water inlet holes of the coil frame are connected to form a water inlet channel;
[0022] The air inlet, internal hollow channel, and multiple air inlets of the coil frame are connected to form an air intake channel;
[0023] The water inlet channel and the air inlet channel do not intersect in the hollow channel inside the coil frame.
[0024] As a preferred technical solution of this utility model: the non-end openings on the top frame of the coil frame are water outlets; some non-end openings on the bottom frame of the coil frame are water inlets; and some non-end openings on the bottom frame of the coil frame are air inlets.
[0025] The water inlet, internal hollow channel, and multiple water inlet holes of the coil frame are connected to form a water inlet channel;
[0026] The water outlet, internal hollow channel, and multiple water outlet holes of the coil frame are connected to form a water outlet channel;
[0027] The air inlet, internal hollow channel, and multiple air inlets of the coil frame are connected to form an air intake channel;
[0028] The water inlet channel, water outlet channel, and air inlet channel do not intersect with each other in the hollow channel inside the coil frame.
[0029] As a preferred technical solution of this utility model: the coil frame includes four main beams and horizontal beams and vertical beams installed on the main beams;
[0030] Some main beams, some cross beams and some vertical beams are hollow to form internal hollow channels. Non-end openings are provided on the cross beams to serve as water inlets, water outlets or air inlets.
[0031] At least one end of a main beam or at least one end of a vertical beam is provided with an end opening.
[0032] The end opening, internal hollow channel, and non-end opening form a water inlet channel, water outlet channel, or air inlet channel.
[0033] This invention provides a novel ice storage device that utilizes an ice storage coil frame as a water distributor (inlet) or a water distributor (inlet) and a water collector (outlet). This effectively leverages the temperature stratification of water within the 0-4°C range, increasing the melting rate and reducing the outlet temperature of the melted water, without increasing investment in the water distributor, and also reducing the height of the ice storage tank. Furthermore, in actual external ice melting projects designed with lateral ice-water flow, or internal ice melting where the ice-water side is not flowing, the lower frame can be used as an air distributor (inlet) to improve the melting rate and melting uniformity. When an external ice melting project is designed with both upper and lower water distributors and also requires an air distributor, the lower crossbeam portion can be used as a water distributor, and part of it as an air distributor. Attached Figure Description
[0034] Figure 1 This is a structural diagram of the ice storage device with the novel structure in Example 1.
[0035] Figure 2 The diagram shows the water inlet, water outlet, and air inlet of the ice storage device with the novel structure in Example 1.
[0036] Figure 3 The diagram shows the air intake of the ice storage device with the novel structure in Example 2. Detailed Implementation
[0037] The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
[0038] Example 1
[0039] like Figure 1 As shown, a novel ice storage device includes a coil frame 110, within which a serpentine coil 120 is installed, along with retaining strips 130 for positioning the serpentine coil 120. The ends of the coil frame 110 are provided with a medium distribution box 140, a medium supply main pipe 150, a return medium distribution box 160, and a return medium main pipe 170.
[0040] The main supply pipe 150 is connected to the supply distribution pipe box 140, and the two ends of the serpentine coil 120 are connected to the supply distribution pipe box 140 and the return distribution pipe box 160 respectively. The return distribution pipe box 160 is connected to the return main pipe 170.
[0041] The coil frame 110 is hollow inside to form an internal hollow channel. At least one end of the coil frame 110 is provided with an opening (i.e., end opening 101) to form a water inlet, water outlet or air inlet. Multiple openings (i.e., non-end openings 102) are provided on the non-ends of the coil frame 110 to form water inlets, water outlets or air inlets.
[0042] The coil frame 110 is a partially hollow rectangular or round tube. The coil frame 110 includes four main beams 111 and horizontal beams 112 and vertical beams 113 installed on the main beams 111;
[0043] Part of the main beam 111, part of the crossbeam 112, and part of the vertical beam 113 are hollow to form an internal hollow channel. The crossbeam 112 has non-end openings 102 as water inlets, water outlets, or air inlets. In this embodiment, non-end openings 102 are provided on the top crossbeam 112 and the bottom crossbeam 112. The bottom non-end opening 102 is partly used as a water inlet and partly as an air inlet, and the top non-end opening 102 is used as a water outlet.
[0044] At least one end of a main beam 111 or at least one end of a vertical beam 113 is provided with an end opening 101. In this embodiment, the end of the main beam 111 is provided with an end opening 101, such as... Figure 2 As shown, the bottom is for air intake, and the top is for water intake and outlet. The non-end openings 102 on the top frame of the coil frame 110 are water outlets; some non-end openings 102 on the bottom frame of the coil frame 110 are water inlets, and some non-end openings 102 on the bottom frame of the coil frame 110 are air inlets.
[0045] The water inlet, internal hollow channel, and multiple water inlet holes of the coil frame 110 are connected to form a water inlet channel;
[0046] The water outlet, internal hollow channel, and multiple water outlet holes of the coil frame 110 are connected to form a water outlet channel;
[0047] The air inlet, internal hollow channel, and multiple air inlets of the coil frame 110 are connected to form an air intake channel;
[0048] The water inlet channel, water outlet channel, and air inlet channel do not intersect with each other in the hollow channel inside the coil frame 110. In this way, water will not enter the water outlet channel directly from the water inlet, and air will not enter the water outlet channel directly from the air inlet.
[0049] During implementation, the entire ice storage device of the new structure is installed in the insulated water tank. During the cold storage period, the cold storage medium (which can be a refrigerant such as ethylene glycol solution or a refrigerant) enters the parallel serpentine coils 120 from one of the supply medium main pipes 150 through the supply medium distribution box 140. After exchanging heat with the water (which can also be other phase change materials) in the insulated water tank and freezing (solidifying), it returns to the refrigeration system through another return medium distribution box 160 and the return medium main pipe 170.
[0050] During the cooling period, hot water flows from... Figure 2 The water inlet shown (water inlet on one side of the main beam) enters the coil frame 110, passes through the 1st, 3rd, and 5th vertical beams, and enters the 1st, 3rd, and 5th bottom crossbeams (water inlets on one side of the bottom main beam, air inlets on the other side of the main beam). It then enters the insulated water tank through the small holes (water distribution holes or water inlets) on the bottom crossbeams. Inside the insulated water tank, it exchanges heat with ice while flowing upwards. When the low-temperature water reaches the top of the insulated water tank, it enters the top crossbeam through the small holes (water collection holes or water outlets) on the top crossbeams and flows out through the outlets (water outlets on the top crossbeams and one side of the main beams).
[0051] Compressed air can be introduced through the air inlet during ice making and melting to agitate the water in the insulated water tank, thereby improving the heat exchange efficiency and uniformity of ice making and melting.
[0052] Example 2
[0053] like Figure 3 As shown, an opening can also be made at the end of the vertical beam 113 as an air inlet, from top to bottom, and through the crossbeam 112 to the bottom of the coil frame 110, and enter the insulated water tank through the air distribution hole (air inlet) on the crossbeam 112 to enhance heat exchange.
[0054] The above specific embodiments are used to explain and illustrate the present utility model, and are only preferred embodiments of the present utility model, and are not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc. made to the present utility model within the spirit and protection scope of the claims shall fall within the protection scope of the present utility model.
Claims
1. A novel ice storage device, comprising a coil frame, wherein a serpentine coil and a retaining strip for positioning the serpentine coil are provided within the coil frame, and the ends of the coil frame are provided with a supply medium distribution box, a supply medium main pipe, a return medium distribution box, and a return medium main pipe. The main supply pipe is connected to the supply distribution pipe box, and the two ends of the serpentine coil are respectively connected to the supply distribution pipe box and the return distribution pipe box. The return distribution pipe box is connected to the return main pipe. Its features are: The coil frame is hollow inside to form an internal hollow channel. At least one end of the coil frame is provided with an opening to form a water inlet, water outlet or air inlet. Multiple openings are provided on the non-ends of the coil frame to form water inlets, water outlets or air inlets. The end openings, internal hollow channels, and multiple non-end openings of the coil frame are connected to form a water inlet channel, a water outlet channel, or an air inlet channel.
2. The ice storage device with a novel structure according to claim 1, characterized in that: The non-end openings on the bottom frame of the coil frame are water inlet holes; The water inlet of the coil frame, the internal hollow channel, and multiple water inlets are connected to form the water inlet channel.
3. The ice storage device with a novel structure according to claim 1, characterized in that: The non-end opening on the bottom frame of the coil frame is a water inlet, and the non-end opening on the top frame of the coil frame is a water outlet. The water inlet, internal hollow channel, and multiple water inlet holes of the coil frame are connected to form a water inlet channel; The water outlet, internal hollow channel, and multiple water outlet holes of the coil frame are connected to form a water outlet channel; The inlet and outlet channels do not intersect within the hollow channels inside the coil frame.
4. The ice storage device with a novel structure according to claim 1, characterized in that: The non-end openings on the bottom frame of the coil frame are water inlets, and the non-end openings on the bottom frame of the coil frame are air inlets. The water inlet, internal hollow channel, and multiple water inlet holes of the coil frame are connected to form a water inlet channel; The air inlet, internal hollow channel, and multiple air inlets of the coil frame are connected to form an air intake channel; The water inlet channel and the air inlet channel do not intersect in the hollow channel inside the coil frame.
5. The ice storage device with a novel structure according to claim 1, characterized in that: The non-end openings on the top frame of the coil frame are water outlets; some non-end openings on the bottom frame of the coil frame are water inlets; and some non-end openings on the bottom frame of the coil frame are air inlets. The water inlet, internal hollow channel, and multiple water inlet holes of the coil frame are connected to form a water inlet channel; The water outlet, internal hollow channel, and multiple water outlet holes of the coil frame are connected to form a water outlet channel; The air inlet, internal hollow channel, and multiple air inlets of the coil frame are connected to form an air intake channel; The water inlet channel, water outlet channel, and air inlet channel do not intersect with each other in the hollow channel inside the coil frame.
6. The ice storage device with a novel structure according to claim 1, characterized in that: The coil frame includes four main beams and horizontal and vertical beams installed on the main beams; Some main beams, some cross beams and some vertical beams are hollow to form internal hollow channels. Non-end openings are provided on the cross beams to serve as water inlets, water outlets or air inlets. At least one end of a main beam or at least one end of a vertical beam is provided with an end opening. The end opening, internal hollow channel, and non-end opening form a water inlet channel, water outlet channel, or air inlet channel.