Ice storage tank

Abstract

The embodiment of the invention provides an ice storage tank, which comprises a tank body, an ice storage tank, an ice storage tank cover and an ice storage tank cover, and is characterized in that the tank body is provided with an opened ice storage space; the ice storage pipes are uniformly arranged in the ice storage space at intervals, the section of the ice storage space is rectangular in the height direction of the tank body, and the corner is divided into two uniform spaces by the extension line of the rib plate of the ice storage pipe closest to the corner of the ice storage space. The ice storage pipes are evenly arranged in the ice storage space at intervals, so that even ice blocks are formed in the ice storage space, space waste in the ice storage tank is avoided, and the ice storage speed of the ice storage tank is guaranteed. In the height direction of the groove body, the section of the ice storage space is rectangular, four ice storage pipes are arranged at the four corners of the rectangle respectively, and the extension line of at least one rib plate of each ice storage pipe equally divides the corresponding corner of the groove body, so that the two sides of the rib plate are equivalent to the space on the two sides of the corner. Therefore, the ice-making speeds of two spaces between two sides of the rib plate and two sides of the corner are equivalent, and the overall ice-making speed of the ice storage space is improved.

Description

Technical Field

[0001] The embodiments of the present disclosure belong to the technical field of ice storage, and in particular to an ice storage tank. Background Art

[0002] Ice storage technology uses cheap electricity to make ice and store cold when the grid load is low, and melts the ice to release cold when the grid load is high, thus playing the role of shifting peak power to fill valley power. It is an energy storage technology widely used in the food, pharmaceutical, and chemical industries.

[0003] According to the different ice-making methods, ice-making technology can be divided into static ice-making and dynamic ice-making. Among them, static ice-making technology is highly mature, simple in structure, and low in cost, which has certain advantages. In static ice-making, coil-tube ice-making is the most widely used. When making ice to store cold, the low-temperature refrigerant flows through the tube bundle of the ice storage tank, absorbs the heat of the water on the outer wall of the tube, and the water wrapped on the outer wall of the tube freezes, so that the electric energy is stored in the form of cold energy of ice; when melting ice to release cold, the high-temperature refrigerant flows through the tube bundle, transfers heat to the ice, and the ice on the outer wall of the tube melts from the inside to the outside, and the system supplies cold to the outside.

[0004] However, during the ice making and cold storage stage, as the low-temperature coolant flows from the coolant inlet of the tube bundle to the coolant outlet, the temperature of the coolant gradually increases, the heat exchange temperature difference with the ice water on the outer wall of the tube gradually decreases, and the heat exchange capacity gradually decreases. Finally, along the flow direction of the low-temperature coolant, the shape of the ice column becomes conical. Multiple conical ice columns waste the space of the ice storage tank and affect the ice making capacity of the ice storage tank, thereby affecting the energy storage effect of the ice storage tank. Summary of the invention

[0005] The embodiments of the present disclosure aim to solve at least one of the technical problems existing in the prior art and provide an ice storage tank.

[0006] An embodiment of a first aspect of the present disclosure provides an ice storage tank, the ice storage tank comprising:

[0007] A tank body, wherein the tank body has an open ice storage space;

[0008] A plurality of ice storage tubes are arranged in the ice storage space at intervals and evenly. The cross section of the ice storage space is rectangular along the height direction of the trough body. The extension line of the rib of the ice storage tube closest to the corner of the ice storage space divides the corner into two even spaces.

[0009] In some embodiments of the present disclosure, the ice storage pipe includes:

[0010] A tube body, wherein the tube body has a coolant inlet and a coolant outlet, and the coolant inlet and the coolant outlet are respectively located at two ends of the tube body;

[0011] The rib plate is arranged on the outer wall of the tube body, and the heat exchange area of ​​the rib plate gradually increases along the direction from the coolant inlet to the coolant outlet.

[0012] In some embodiments of the present disclosure, there are multiple ribs, and the multiple ribs are evenly arranged on the outer wall of the tube body along the circumference of the tube body.

[0013] In some embodiments of the present disclosure, the number of the ribs is four, and the angle between two adjacent ribs is a right angle.

[0014] In some embodiments of the present disclosure, the length of the rib is the same as the length of the tube body.

[0015] In some embodiments of the present disclosure, a plurality of flow portions are provided on the rib plate, and each of the flow portions penetrates the rib plate in a thickness direction.

[0016] In some embodiments of the present disclosure, the plurality of flow portions are disposed at one end of the rib plate close to the refrigerant outlet.

[0017] In some embodiments of the present disclosure, a plurality of the flow portions are spaced apart and evenly arranged along the length direction of the rib.

[0018] In some embodiments of the present disclosure, the flow portion is a through hole.

[0019] In some embodiments of the present disclosure, the coolant flowing through the ice storage pipe is an ethylene glycol aqueous solution.

[0020] In the ice storage tank of the embodiment of the present disclosure, a plurality of ice storage tubes are arranged at intervals and evenly in the ice storage space, so that uniform ice cubes are formed in the ice storage space, avoiding space waste in the ice storage tank and ensuring the ice storage forming speed in the ice storage tank. Along the height direction of the tank body, the cross section of the ice storage space is rectangular, and four ice storage tubes are respectively arranged at the four corners of the rectangle, and the extension line of at least one rib plate of each ice storage tube bisects the corresponding corner of the tank body, so that the space on both sides of the rib plate is equivalent to the space on both sides of the corner, thereby ensuring that the ice making speed of the two spaces between the two sides of the rib plate and the two sides of the corner is equivalent. And because the rib plate faces the corner of the ice storage space, it can ensure that the ice making speed at the corner of the ice storage space is equivalent to the ice making speed at other positions of the ice storage space, thereby improving the overall ice making rate of the ice storage space. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a structural schematic diagram of an ice storage pipe according to an embodiment of the present disclosure;

[0022] Figure 2 for Figure 1 A partial enlarged view of

[0023] Figure 3 for Figure 1 Schematic diagram of rib plate;

[0024] Figure 4 It is a structural schematic diagram of an ice storage tank according to an embodiment of the present disclosure;

[0025] Figure 5 It is a structural schematic diagram of an ice storage tank according to another embodiment of the present disclosure;

[0026] Figure 6 for Figure 5 Figure 2 shows the simulation results of the ice storage tank.

[0027] The reference numerals in the accompanying drawings represent the following:

[0028] 1. Refrigerant inlet; 2. Refrigerant outlet; 3. Tube body; 4. Ribs; 4-1. First rib; 4-2. Second rib; 4-3. Third rib; 4-4. Fourth rib; 5. Circulation section; 6. Ice storage tank; 6-1. First corner; 6-2. Second corner; 6-3. Third corner; 6-4. Fourth corner; 7. Ice storage pipe; 7-1. First ice storage pipe; 7-2. Second ice storage pipe; 7-3. Third ice storage pipe; 7-4. Fourth ice storage pipe; C-1. First central area; C-2. Second central area; C-3. Third central area; C-4. Fourth central area. DETAILED DESCRIPTION

[0029] The exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although the exemplary embodiments of the present disclosure are shown in the accompanying drawings, it should be understood that the present disclosure can be implemented in various forms and should not be limited by the embodiments described herein. On the contrary, these embodiments are provided in order to enable a more thorough understanding of the present disclosure and to fully convey the scope of the present disclosure to those skilled in the art.

[0030] It should be understood that the terms used herein are only for the purpose of describing specific example embodiments and are not intended to be limiting. Unless the context clearly indicates otherwise, the singular forms "one", "an" and "said" as used herein may also be meant to include plural forms. The terms "include", "comprise", "contain", and "have" are inclusive, and therefore specify the existence of stated features, steps, operations, elements and / or parts, but do not exclude the existence or addition of one or more other features, steps, operations, elements, parts, and / or combinations thereof. The method steps, processes, and operations described herein are not interpreted as necessarily requiring them to be performed in the specific order described or illustrated, unless the execution order is clearly indicated. It should also be understood that additional or alternative steps may be used.

[0031] Although the terms first, second, third, etc. can be used in the text to describe multiple elements, components, regions, layers and / or sections, these elements, components, regions, layers and / or sections should not be limited by these terms. These terms can only be used to distinguish an element, component, region, layer or section from another region, layer or section. Unless the context clearly indicates, terms such as "first", "second" and other numerical terms do not imply order or sequence when used in the text. Therefore, the first element, component, region, layer or section discussed below can be referred to as the second element, component, region, layer or section without departing from the teaching of the example embodiments.

[0032] For ease of description, spatial relative terms may be used herein to describe the relationship of one element or feature relative to another element or feature as shown in the figure, such as "inside", "outside", "inner side", "outer side", "below", "below", "above", "above", etc. Such spatial relative terms are intended to include different orientations of the device in use or operation in addition to the orientation depicted in the figure. For example, if the device in the figure is turned over, then the elements described as "below other elements or features" or "below other elements or features" will subsequently be oriented as "above other elements or features" or "above other elements or features". Therefore, the example term "below..." can include both upper and lower orientations. The device can be oriented otherwise (rotated 90 degrees or in other directions) and the spatial relative descriptors used in the text are interpreted accordingly.

[0033] like Figures 1 to 5 As shown, an embodiment of the present invention proposes an ice storage tank 6, which includes: a tank body and a plurality of ice storage tubes 7, the tank body having an open ice storage space, the plurality of ice storage tubes 7 being spaced and evenly arranged in the ice storage space, the cross-section of the ice storage space being rectangular along the height direction of the tank body, and the extension line of the rib plate 4 of the ice storage tube 7 closest to the corner of the ice storage space divides the corner into two uniform spaces.

[0034] In the ice storage tank 6 of the disclosed embodiment, a plurality of ice storage tubes 7 are arranged at intervals and evenly in the ice storage space, so that uniform ice cubes are formed in the ice storage space, avoiding space waste in the ice storage tank 6, and ensuring the ice storage formation speed in the ice storage tank 6. Along the height direction of the tank body, the cross-section of the ice storage space is a rectangle, and four ice storage tubes 7 are respectively arranged at the four corners of the rectangle, and the extension line of at least one rib plate 4 of each ice storage tube 7 bisects the corresponding corner of the tank body, so that the space on both sides of the rib plate 4 is equivalent to the space on both sides of the corner, thereby ensuring that the ice-making speed of the two spaces between the two sides of the rib plate 4 and the two sides of the corner is equivalent. And because the rib plate 4 faces the corner of the ice storage space, it can ensure that the ice-making speed at the corner of the ice storage space is equivalent to the ice-making speed at other positions of the ice storage space, thereby improving the overall ice-making rate of the ice storage space.

[0035] Furthermore, multiple ice storage pipes 7 are arranged at intervals and evenly at other positions of the ice storage space. Figure 4 As shown, n rows of ice storage tubes 7 are arranged along the length direction of the rectangle, and m columns of ice storage tubes 7 are arranged along the width direction of the rectangle, wherein four ice storage tubes 7 are respectively located at the four corner positions of the rectangular ice storage tank 6, and a rib plate 4 of each ice storage tube 7 points to the corner corresponding to the ice storage tank 6, and the extension line of the rib plate 4 divides the corner corresponding to the rib plate 4 into two uniform spaces. Furthermore, the first rib plate 4-1 of the first ice storage tube 7-1 divides the first corner 6-1 into two uniform spaces; the second rib plate 4-2 of the second ice storage tube 7-2 divides the second corner 6-2 into two uniform spaces; the third rib plate 4-3 of the third ice storage tube 7-3 divides the third corner 6-3 into two uniform spaces; the fourth rib plate 4-4 of the fourth ice storage tube 7-4 divides the fourth corner 6-4 into two uniform spaces. In this embodiment, the outer wall of each ice storage tube 7 is provided with four ribs 4, and two opposite ribs 4 are respectively located at the two ends of the diameter of the tube body 3. Therefore, in this embodiment, the extension lines of the two ribs 4 of each ice storage tube 7 divide the corner of an ice storage tank 6 into two uniform spaces.

[0036] like Figure 5As shown, in this embodiment, an ice storage tank 6 accommodating 3×3 ice storage tubes 7 is taken as an example, that is, 3 rows×3 columns of ice storage tubes 7 are arranged in the ice storage tank 6, and the cross section of the ice storage space is a square along the height direction of the ice storage tank 6, that is, along the length direction of the ice storage tube. An ice storage tube 7 is arranged at each of the four corners of the square, and the extension line of a rib plate 4 of each ice storage tube 7 divides the corresponding corner into two uniform spaces, and the reverse extension line of another rib plate 4 opposite to the rib plate 4 also divides the above corner into two uniform spaces. Specifically, the first rib plate 4-1 of the first ice storage tube 7-1 divides the first corner 6-1 into two uniform spaces; the second rib plate 4-2 of the second ice storage tube 7-2 divides the second corner 6-2 into two uniform spaces; the third rib plate 4-3 of the third ice storage tube 7-3 divides the third corner 6-3 into two uniform spaces; the fourth rib plate 4-4 of the fourth ice storage tube 7-4 divides the fourth corner 6-4 into two uniform spaces.

[0037] The ice storage tank 6 of this embodiment that accommodates 3×3 ice storage tubes 7 is simulated, where βl is the liquid volume fraction, and βl decreases from 1 to 0 from dark red to dark blue, representing the transformation from liquid phase (water) to solid phase (ice). The larger the blue area and the darker the color, the better the ice storage effect. Figure 6 It can be seen that the ice storage capacity ( Figure 6 The lower half) is larger than the ice storage tank 6 of the prior art ( Figure 6 In particular, the ice storage capacity of the four corner areas of the first corner 6-1, the second corner 6-2, the third corner 6-3 and the fourth corner 6-4 and the first central area C-1, the second central area C-2, the third central area C-3 and the fourth central area C-4 between the four tube bundles has been significantly increased.

[0038] In some embodiments of the present disclosure, the ice storage pipe 7 includes a pipe body 3 and a rib 4. Specifically, the pipe body 3 has a refrigerant inlet 1 and a refrigerant outlet 2, and the refrigerant inlet 1 and the refrigerant outlet 2 are respectively located at two ends of the pipe body 3. The rib 4 is arranged on the outer wall of the pipe body 3. Along the direction from the refrigerant inlet 1 to the refrigerant outlet 2, the heat exchange area of ​​the rib 4 gradually increases. As the coolant flows from the coolant inlet 1 to the coolant outlet 2, the coolant absorbs the heat of the water, ice or ice-water mixture outside the cold storage tube through the tube body 3 and the ribs 4, that is, the coldness of the coolant is gradually released as the coolant flows, that is, the coldness that can be released by the coolant gradually decreases during the flow of the coolant. By setting the heat exchange area of ​​the ribs 4 to gradually increase along the direction from the coolant inlet 1 to the coolant outlet 2, when the coolant in the ice storage tube 7 flows from the coolant inlet 1 to the coolant outlet 2, the heat exchange area between the coolant and the water, ice or ice-water mixture outside the ice storage tube 7 is gradually increased. By increasing the heat exchange area between the coolant and the liquid or solid-liquid mixture outside the ice storage tube 7, the gradual decrease in the coolness of the coolant is compensated, so that the diameter of the ice column formed outside the ice storage tube 7 is comparable, even if the ice column formed outside the ice storage tube 7 is cylindrical, the space waste in the ice storage tank 6 is avoided, the ice making amount in the ice storage tank 6 is increased, and the cold energy storage effect in the ice storage tank 6 is improved.

[0039] In some embodiments of the present invention, the number of ribs 4 is multiple, and multiple ribs 4 can further increase the heat exchange area of ​​the coolant in the tube body 3 to improve the heat exchange between the coolant and the water, ice or ice-water mixture outside the tube body 3. Multiple ribs 4 are evenly arranged on the outer wall of the tube body 3 along the circumference of the tube body 3 to evenly exchange the coldness of the coolant in the tube body 3 to the water, ice-water mixture or ice around the tube body 3, improve the uniformity of the ice column formed outside the tube body 3, and then improve the ice making speed in the ice storage tank 6.

[0040] In some embodiments of the present invention, the number of ribs 4 is four, and the four ribs 4 can form icicles with uniform wall thickness on the outer wall of the tube body 3, thereby ensuring the speed of icicle formation. The angle between two adjacent ribs 4 is a right angle, and the line connecting the two ribs 4 passes through the center line of the tube body 3, that is, the four ribs 4 are evenly and spaced along the circumference of the tube body 3, and the height direction of each rib 4 is tangent to the outer wall of the tube body 3, so as to ensure that a relatively uniform space is formed on both sides of the rib 4, thereby forming icicles with relatively uniform wall thickness outside the tube body 3, thereby improving the speed of icicle formation.

[0041] In some embodiments of the present invention, the length of the rib plate 4 is the same as the length of the tube body 3, that is, the rib plate 4 extends along the outer wall of the tube body 3 from one end of the coolant inlet 1 to one end of the coolant outlet 2 to increase the heat exchange area of ​​the rib plate 4. In some other embodiments of the present invention, the rib plate 4 can also be set at one end of the coolant outlet 2 of the tube body 3 to increase the heat exchange area at one end of the coolant outlet 2 of the tube body 3, and can also balance the uniformity of the thickness of the ice column formed outside the tube body 3 to ensure that the thickness of the ice column is uniform along the direction from the coolant inlet 1 to the coolant outlet 2. In order to ensure that the ice storage pipe 7 has a larger heat exchange area, the length of the rib plate 4 of the present invention is set to be the same as the length of the tube body 3.

[0042] Specifically, Figure 2 As shown, the height h2 of the end of the rib plate 4 close to the coolant outlet 2 is greater than the height h1 of the end of the rib plate 4 close to the coolant inlet 1, and h2 is greater than h1.

[0043] In some embodiments of the present invention, a plurality of flow portions 5 are provided on the rib 4, each flow portion 5 passes through the thickness direction of the rib 4, and the spaces on opposite sides of the rib 4 are connected through the flow portions 5, so that water or ice-water mixture on opposite sides of the rib 4 can flow during ice making and melting, thereby avoiding damage to the rib 4 or the tube body 3 due to volume change during the phase change of ice and water.

[0044] In some embodiments of the present invention, multiple flow portions 5 are provided at one end of the rib plate 4 close to the refrigerant outlet 2 to ensure that the wall thickness of the ice column formed at the end of the rib plate 4 close to the refrigerant outlet 2 is relatively uniform, thereby preventing the end of the rib plate 4 close to the refrigerant outlet 2 from being damaged due to the ice-water phase change.

[0045] In some embodiments of the present invention, each rib 4 is provided with a plurality of flow portions 5, and the plurality of flow portions 5 are spaced and evenly arranged along the length direction of the rib 4 to ensure that the rib 4 has sufficient heat exchange area and that the ice-water mixture on opposite sides of the rib 4 flows more evenly.

[0046] In some embodiments of the present invention, the circulation portion 5 is a through hole, and the circulation portion 5 may also be a through groove. For the convenience of processing, the flow portion of the present invention is provided with a circular through hole.

[0047] It is to be understood that the above embodiments are merely exemplary embodiments used to illustrate the principles of the present disclosure, but the present disclosure is not limited thereto. For those of ordinary skill in the art, various modifications and improvements can be made without departing from the spirit and substance of the present disclosure, and these modifications and improvements are also considered to be within the scope of protection of the present disclosure.

Claims

1. An ice storage tank, characterized in that: The ice storage tank comprises: A tank body, wherein the tank body has an open ice storage space; A plurality of ice storage tubes are arranged in the ice storage space at intervals and evenly. The cross section of the ice storage space is rectangular along the height direction of the trough body. The extension line of the rib of the ice storage tube closest to the corner of the ice storage space divides the corner into two even spaces.

2. The ice storage tank according to claim 1, characterized in that: The ice storage pipe comprises: A tube body, wherein the tube body has a coolant inlet and a coolant outlet, and the coolant inlet and the coolant outlet are respectively located at two ends of the tube body; The rib plate is arranged on the outer wall of the tube body, and the heat exchange area of ​​the rib plate gradually increases along the direction from the coolant inlet to the coolant outlet.

3. The ice storage tank according to claim 2, characterized in that: There are multiple ribs, and the multiple ribs are evenly arranged on the outer wall of the tube body along the circumference of the tube body.

4. The ice storage tank according to claim 3, characterized in that: The number of the ribs is four, and the angle between two adjacent ribs is a right angle.

5. The ice storage tank according to claim 2, characterized in that: The length of the rib plate is the same as that of the tube body.

6. The ice storage tank according to claim 2, characterized in that: The rib plate is provided with a plurality of flow portions, and each of the flow portions penetrates the rib plate in a thickness direction.

7. The ice storage tank according to claim 6, characterized in that: The plurality of flow portions are arranged at one end of the rib plate close to the refrigerant outlet.

8. The ice storage tank according to claim 6 or 7, characterized in that: The plurality of flow portions are spaced apart and evenly arranged along the length direction of the rib plate.

9. The ice storage tank according to claim 6, characterized in that: The flow portion is a through hole.

10. The ice storage tank according to claim 1, characterized in that: The coolant flowing through the ice storage pipe is an ethylene glycol aqueous solution.

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