An ice slurry cold storage device with an integrated ice storage and melting pipeline structure

Abstract

The present invention discloses an ice slurry cold storage device with an integrated ice storage and ice melting pipeline structure, which belongs to the technical field of cold storage equipment. It includes a tank body for storing energy storage medium; a column, including an inner casing and an outer casing, the upper and lower ends of the column are respectively provided with an upper ice melting water distributor and a lower ice melting water distributor, and an ice melting return pipe; connected to the outer casing; an ice storage inlet pipe, connected to the inner casing; the inner casing is an ice storage channel and is connected to the inner pipeline, and the space between the inner casing and the outer casing is an ice melting channel and is connected to the outer pipeline. Through the present invention, when the inner casing and the inner pipeline are frozen during the process of transporting ice slurry, the frozen position can be immediately melted by introducing ice melting medium into the outer pipeline, ensuring the smooth flow of the entire ice slurry transport pipeline, thereby improving the working efficiency of the entire ice storage device.

Description

Technical Field

[0001] The invention relates to an ice slurry cold storage device with an integrated ice storage and ice melting pipeline structure, belonging to the technical field of cold storage equipment. Background Art

[0002] Ice slurry cold storage device is a highly efficient cold storage technology that is widely used in central air-conditioning systems, industrial refrigeration and other fields. It uses low-voltage electricity at night to produce ice slurry for storage and releases the cold energy during the day to achieve energy peak shifting and valley filling and cost savings.

[0003] At present, during the storage of ice slurry in an ice slurry cold storage tank, the pipeline for conveying the ice slurry is prone to freezing, thereby hindering the subsequent circulation of the ice slurry and reducing the working efficiency of the entire cold storage device. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to provide an ice slurry cold storage device with an integrated ice storage and ice melting pipeline structure, which solves the problem in the prior art that ice slurry conveying pipelines are prone to freezing.

[0005] The technical problem to be solved by the present invention is achieved by adopting the following technical solutions: an ice slurry cold storage device with an integrated ice storage and ice melting pipeline structure, including a tank body for storing energy storage medium; a column, including an inner casing and an outer casing, and the upper and lower ends of the column are respectively provided with an upper ice melting water distributor and a lower ice melting water distributor, and the upper ice melting water distributor includes an outer pipeline and an inner pipeline arranged in the cavity of the outer pipeline; an ice melting return pipe; connected to the outer casing; an ice storage inlet pipe, connected to the inner casing; wherein the inner casing and the outer casing are coaxially installed to form a double-layer casing structure, the inner casing is an ice storage channel and is connected to the inner pipeline, and the space between the inner casing and the outer casing is an ice melting channel and is connected to the outer pipeline.

[0006] By adopting the above technical solution, it is possible to prevent ice slurry accumulation and blockage inside the ice slurry conveying pipeline. The conveying pipelines in the columns and the upper ice-melting water distributor are arranged in the form of sleeves, and the inner sleeve for conveying ice slurry is arranged in the outer sleeve, and the inner pipeline is arranged in the outer pipeline. When the inner sleeve and the inner pipeline are conveying ice slurry and the pipeline is frozen, the frozen position can be immediately melted by introducing ice-melting medium into the outer pipeline, ensuring the smooth flow of the entire ice slurry conveying pipeline, thereby improving the working efficiency of the entire ice storage device.

[0007] On the other hand, during the ice melting process, the return water enters the space between the outer casing and the inner casing through the ice melting return pipe, and then wraps the inner casing to melt the ice slurry remaining inside the inner casing, so that after the ice storage in the tank is completed, there is no need to flush out the residual ice slurry in the ice slurry transport pipeline through water flow.

[0008] The present invention is further configured as follows: the outer casing is provided with a return water section and a water outlet section from top to bottom, the ice melting return water pipe is connected to the return water section, the ice melting outlet water pipe is connected to the water outlet section, and the lower ice melting water distributor is connected to the water outlet section.

[0009] By adopting the above technical solution and through the independent layered design of return water section and outlet water section, the ice melting return water and outlet water paths are separated, thus avoiding the mixing of cold and hot water flows and improving the heat exchange efficiency.

[0010] The present invention is further configured as follows: the lower ice-melting water distributor includes a hollow cavity plate inside, and the downward side of the cavity plate is designed with a flow hole connected to its cavity. The ice-melting cold water at the bottom enters the cavity through the flow hole and then flows out from the ice-melting water outlet pipe.

[0011] By adopting the above technical solution, the interior of the cavity plate is hollow, and its inner cavity is connected to the ice-melting outlet pipe through the water outlet section, so that the cold water flow after ice melting can be discharged through the flow holes evenly distributed on the cavity plate, thereby improving the uniformity of water discharge, so that the drain outlet is no longer limited to a single point, and the temperature of the discharged ice-melting cold water flow can be maintained continuously and stably without large temperature fluctuations, thereby improving the heat exchange efficiency of the device.

[0012] The present invention is further configured as follows: the lower ice-melting water distributor divides the inner cavity of the tank body into two layers, an upper layer and an lower layer; a plurality of through holes are opened on the cavity plate to connect the upper and lower layers of the tank body; the ice-melting cold water from the upper layer of the tank body enters the lower layer through the through holes, and the ice slurry is blocked in the upper layer of the tank body.

[0013] By adopting this technical solution, cold water from the melted ice slurry above the cavity plate flows through the through-holes into the cavity plate below. During this process, the ice slurry is blocked by the cavity plate in the upper layer of the tank body, preventing it from flowing with the cold water into the ice melt outlet pipe and clogging it, thereby improving the stability of the entire device. The through-holes evenly distributed in the cavity plate also help to uniformly distribute the fluid, allowing the cold water generated during the ice melting process to flow more evenly from the top of the cavity plate to the bottom of the cavity plate.

[0014] The present invention is further configured such that: the outer pipelines are fixed to the upper end of the pillars at equal intervals in the circumferential direction, and each inner pipeline is coaxially arranged in the inner cavity of the outer pipeline.

[0015] By adopting this technical solution, the axial flow of the inner pipe and the annular flow of the outer pipe form a synergistic heat exchange interface, increasing the effective heat exchange area and shortening the temperature gradient transmission path. The coaxial nested design also saves installation space and unifies the flow path of the entire water body and ice slurry.

[0016] The present invention is further configured as follows: a plurality of ice slurry branches with openings facing upwards are provided on the inner pipeline, and a plurality of return water branches with openings facing downwards are provided on the outer pipeline.

[0017] By adopting the above technical solution, multiple ice slurry branches and multiple return water branches can have multiple ice discharge ports and drainage ports during ice melting and ice storage, so that the ice slurry is laid more evenly inside the tank during ice storage, and the phenomenon of local ice slurry accumulation can be avoided. During the ice melting process, the return water is discharged through multiple drainage ports, so that the return water is in more complete contact with the ice slurry in the tank, and the ice melting efficiency is faster.

[0018] The present invention is further configured as follows: the upper end of the column is in contact with the upper top plate of the tank body, and a support column is provided at the bottom of the cavity plate, and the support column extends downward and is fixed to the bottom of the tank body.

[0019] By adopting the above technical solution, the upright column and the lower ice-melting water distributor are supported and fixed by the support column, which can effectively improve the stability of both.

[0020] The present invention is further configured as follows: a heat insulation board is provided between the return water section and the outlet water section to separate the inner cavity of the return water section from the inner cavity of the outlet water section, and the bottom of the inner sleeve abuts against the heat insulation board.

[0021] By adopting this technical solution, the insulation board effectively blocks heat transfer between return and outlet water, reducing energy loss and improving system thermal efficiency. The abutment between the inner casing and the insulation board forms a rigid support, dissipating stress caused by pipeline vibration or pressure fluctuations.

[0022] The beneficial effects of the present invention are:

[0023] By installing columns within the tank and designing the columns and upper ice-melting water distributor as inner and outer casings for conveying ice slurry and return water, the ice slurry can be prevented from freezing and clogging the pipes, thereby improving the efficiency of the entire ice slurry pipe. During the ice-melting process, the return water can exchange heat with the inner casing and the inner pipe that conveys the ice slurry, melting any remaining ice slurry in both pipes and reducing subsequent maintenance costs.

[0024] The lower ice melt water distributor divides the tank cavity into two sections: the upper section stores ice slurry, and the lower section stores melted return water, preventing ice slurry from flowing into the drain and causing blockage. Multiple through-holes in the cavity plate also balance the water flow within the tank, ensuring a uniform temperature and minimal temperature fluctuations. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a cross-sectional view of the internal structure of the present invention;

[0026] Figure 2 It is a schematic diagram of the three-dimensional structure of the column, the upper ice-melting water distributor and the lower ice-melting water distributor of the present invention;

[0027] Figure 3 This is a cross-sectional view of the upper ice-melting water distributor and the upper end of the column of the present invention;

[0028] Figure 4 This is a schematic diagram of the three-dimensional structure of the lower ice-melting water distributor of the present invention from the bottom perspective.

[0029] In the figure: 1. Tank body; 2. Column; 201. Inner casing; 202. Outer casing; 2021. Return water section; 2022. Outlet water section; 3. Upper ice-melting water distributor; 301. External pipeline; 302. Internal pipeline; 303. Ice slurry branch pipe; 304. Return water branch pipe; 4. Lower ice-melting water distributor; 401. Cavity plate; 402. Flow hole; 403. Through hole; 5. Ice-melting return water pipe; 6. Ice storage inlet pipe; 7. Ice-melting outlet pipe; 8. Support column; 9. Drain pipe. DETAILED DESCRIPTION

[0030] In order to make the technical means, creative features, objectives and effects of the present invention easier to understand, the present invention is further explained below with reference to specific illustrations.

[0031] like Figure 1 As shown, an ice slurry cold storage device with an integrated ice storage and ice melting pipeline structure includes a tank body 1 for storing energy storage medium, a column 2 fixed coaxially with the tank body 1 in the inner cavity of the tank body 1, and an upper ice melting water distributor 3 and a lower ice melting water distributor 4 installed at the upper and lower ends of the column 2.

[0032] Specifically, the column 2 includes an inner casing 201 and an outer casing 202, which are coaxially mounted to form a double-layer casing structure. Similarly, the upper ice-melting water distributor 3 includes an outer pipeline 301 and an inner pipeline 302 disposed within the cavity of the outer pipeline 301. The outer pipeline 301 and the inner pipeline 302 are coaxially mounted to form a double-layer casing structure. The double-layer casing structure of the column 2 is interconnected with the double-layer casing structure of the upper ice-melting water distributor 3. That is, the inner casing 201 of the column 2 is connected to the inner pipeline 302 of the upper ice-melting water distributor 3, and the outer casing 202 of the column 2 is connected to the outer pipeline 301 of the upper ice-melting water distributor 3.

[0033] An ice melt return pipe 5 is fixedly mounted on the outer casing 202. Return water flows through the ice melt return pipe 5 into the outer casing 202 and is sprayed into the tank body 1 through the upper ice melt water distributor 3. An ice storage inlet pipe 6 is fixedly mounted on the inner casing 201. This ice storage inlet pipe 6 passes through the wall of the outer casing 202 and communicates with the inner casing 201. Prepared ice slurry enters the inner casing 201 through the ice storage inlet pipe 6 and is sprayed into the tank body 1 through the upper ice melt water distributor 3.

[0034] By adopting a double-layer casing structure for pipeline arrangement, not only can the internal space of the entire tank body 1 be saved, so that the ice melting space inside the tank body 1 is larger, but also the function of rapid de-icing of the pipeline can be achieved to prevent freezing inside the pipeline.

[0035] When the tank body 1 stores ice, the prepared ice slurry first enters the inner sleeve 201 of the column 2 through the ice storage inlet pipe 6, moves upward along the inner sleeve 201, and is ejected from the inner pipe 302 of the upper ice melting water distributor 3.

[0036] When the tank body 1 melts ice, the return water with a higher external temperature enters the outer casing 202 of the column 2 through the ice melting return pipe 5, flows upward along the column 2 in the space between the outer casing 202 and the inner casing 201, and finally sprays out from the outer pipe 301 of the upper ice melting water distributor 3.

[0037] During the ice melting process, due to the high temperature of the return water, the inner casing 201 and the inner pipe 302 are wrapped around the return water as it flows along the column 2 and the outer pipe 301. This allows the return water to exchange heat with the inner casing 201 and the inner pipe 302 during the flow, thereby melting the residual ice slurry in the two pipes and preventing it from accumulating and affecting the subsequent ice storage efficiency. In other words, the double-layer casing structure allows the tank body 1 to simultaneously clean the ice slurry transport pipe during the ice melting process, keeping the ice slurry transport pipe unobstructed. There is no need to flush the ice slurry out of the pipe with water after ice storage is completed, reducing the subsequent maintenance cost of the ice slurry transport pipe and improving the working efficiency of the entire ice storage tank.

[0038] On the other hand, during the ice storage process, if local freezing occurs and the ice slurry transportation is not smooth, high-temperature water can be directly introduced into the outer pipeline 301 and the outer casing 202 to quickly melt the frozen area, thereby eliminating the need for on-site maintenance by staff or removing ice by introducing deicing media into the ice slurry pipeline, making the ice storage process more convenient.

[0039] like Figure 2 As shown, outer casing 202 is provided with a return water section 2021 and an outlet water section 2022 from top to bottom. The ice melt return water pipe 5 is connected to the return water section 2021, the outlet water section 2022 is connected to the ice melt outlet water pipe 7, and the lower ice melt water distributor 4 is connected to the outlet water section 2022. The independent layered design of the return water section 2021 and the outlet water section 2022 separates the ice melt return water and outlet water paths, prevents mixing of cold and hot water flows, and improves heat exchange efficiency.

[0040] Further, such as Figure 2 and Figure 3As shown, the outer pipes 301 are circumferentially equidistantly fixed to the upper end of the column 2, and each inner pipe 302 is coaxially arranged within the inner cavity of the outer pipe 301. The inner pipes 302 are provided with a number of upward-facing ice slurry branches 303, while the outer pipes 301 are provided with a number of downward-facing return water branches 304. In this embodiment, there are eight outer pipes 301, and each outer pipe 301 is connected to three return water branches 304. Similarly, the number of inner pipes 302 is equal to the number of outer pipes 301, and the number of ice slurry branches 303 is equal to the number of return water branches 304.

[0041] The axial flow of inner pipe 302 and the annular flow of outer pipe 301 form a synergistic heat exchange interface. During ice melting, this increases the effective heat exchange area between the return water and inner pipe 302 and shortens the temperature transfer path. The coaxial nested design also saves installation space and unifies the flow path of the entire water and ice slurry.

[0042] Multiple ice slurry branches 303 and multiple return water branches 304 can have multiple ice discharge ports and water drain ports during ice melting and ice storage, so that the ice slurry is laid more evenly inside the tank body 1 during ice storage, and the phenomenon of local ice slurry accumulation can be avoided. During the ice melting process, the return water is discharged through multiple drain ports, so that the return water is in more complete contact with the ice slurry in the tank body 1, and the ice melting efficiency is faster.

[0043] An insulation board is installed between the return section 2021 and the outlet section 2022, separating the inner cavity of the return section 2021 from the inner cavity of the outlet section 2022. The bottom of the inner casing 201 abuts the insulation board. The insulation board separates the return section 2021 from the outlet section 2022 and reduces heat exchange between them during the ice melting process. The abutment of the bottom of the inner casing 201 with the insulation board improves the overall support strength of the inner casing 201.

[0044] like Figure 2 and Figure 4 As shown, the lower ice-melting water distributor 4 includes a hollow cavity plate 401. The downward side of the cavity plate 401 is designed with a flow hole 402 connected to its cavity. The ice-melting cold water at the bottom enters the cavity through the flow hole 402 and then flows out from the ice-melting water outlet pipe 7.

[0045] The cavity plate 401 is hollow inside, and its inner cavity is connected to the ice-melting water outlet pipe 7 through the water outlet section 2022, so that the cold water flow after ice melting can be discharged through the flow holes 402 evenly distributed on the cavity plate 401, thereby improving the uniformity of water discharge, so that the drain outlet is no longer limited to a single point, and the temperature of the discharged ice-melting cold water flow can be maintained continuously and stably without large temperature fluctuations, thereby improving the heat exchange efficiency of the device.

[0046] The flow hole 402 on the cavity plate 401 is opened toward the lower side of the tank body 1, so that when the cold water is drawn out through the ice-melting outlet pipe 7, the ice slurry can be prevented from being drawn into the cavity plate 401 along with the water flow, thereby affecting the heat exchange efficiency. Similarly, when impurities enter the tank body 1, the impurities will directly settle to the bottom of the tank body 1, and will not accumulate near the flow hole 402 of the cavity plate 401.

[0047] A drain pipe 9 is also installed at the bottom of the tank body 1 to discharge the residual water and deposited sludge at the bottom of the tank body 1 during subsequent maintenance.

[0048] Furthermore, the upper end of the column 2 is in contact with the upper plate of the tank body 1, and a support column 8 is provided at the bottom of the cavity plate 401. The support column 8 extends downward and is fixed to the bottom of the tank body 1. The tank body 1 can be supported by the column 2, thereby improving the overall strength of the tank body 1.

[0049] like Figure 1 As shown, the lower ice-melting water distributor 4 divides the inner cavity of the tank body 1 into two layers, upper and lower. The cavity plate 401 is provided with a number of through-holes 403 connecting the upper and lower layers of the tank body 1. The ice-melting cold water from the upper layer of the tank body 1 flows into the lower layer through the through-holes 403, while the ice slurry is blocked in the upper layer of the tank body 1. After the ice slurry above the cavity plate 401 melts, the cold water flows through the through-holes 403 into the lower layer of the cavity plate 401. During this process, the ice slurry is blocked by the cavity plate 401 in the upper layer of the tank body 1, preventing the ice slurry from flowing with the cold water to the ice-melting water outlet pipe 7 and clogging it, thereby improving the stability of the entire device. The through-holes 403 evenly distributed in the cavity plate 401 also play a role in uniform fluid distribution, allowing the cold water generated during the ice melting process to flow more evenly from the upper cavity plate 401 to the lower cavity plate 401.

[0050] On the other hand, Figure 4 As shown, since multiple through holes 403 are opened on the cavity plate 401, and each through hole 403 is independently opened on the cavity plate 401, each through hole 403 has a vertical inner wall and is integrally connected to the cavity plate 401, thereby improving the support strength of the entire cavity plate 401 in the vertical direction.

[0051] Working principle, please refer to Figure 1 When ice is stored, ice slurry enters the inner casing 201 through the ice storage inlet pipe 6. Since the ice slurry is a fluid mixture of ice and water, after the ice slurry is continuously introduced into the inner casing 201, the liquid level of the ice slurry in the inner casing 201 gradually rises. Figure 1 As shown by the arrow direction in the middle inner casing 201, the ice finally enters the inner pipe connected to the inner casing 201 and is discharged into the tank body 1 through multiple ice slurry branches 303 installed on the inner pipe.

[0052] When the ice melts, the return water enters the outer casing 202 through the ice melting return pipe 5. Similarly, the return water level is continuously raised by continuously passing the return water into the outer casing 202. Figure 1 As indicated by the arrow between the walls of the outer casing 202 and the inner casing 201, the ice slurry is ultimately discharged into the tank 1 through the return branch 304 to melt the ice. In the lower ice-melting water distributor 4, the cold water from the melted ice slurry flows through the through-holes 403 in the cavity plate 401 into the lower cavity plate 401, and then flows again through the circulation holes 402 in the cavity plate 401 into the interior of the cavity plate 401, and is discharged through the ice-melting water outlet pipe 7 to supply the cold source to the terminal cooling equipment.

[0053] The basic principles, main features, and advantages of the present invention are shown and described above. Those skilled in the art will appreciate that the present invention is not limited to the foregoing embodiments and that various modifications and improvements may be made to the present invention without departing from the spirit and scope of the present invention. Such modifications and improvements are intended to fall within the scope of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An ice slurry cold storage device with an integrated ice storage and melting pipeline structure, characterized in that: include: A tank (1) for storing an energy storage medium; A column (2) comprising an inner sleeve (201) and an outer sleeve (202); an upper ice-melting water distributor (3) and a lower ice-melting water distributor (4) are respectively provided at the upper and lower ends of the column (2); the upper ice-melting water distributor (3) comprises an outer pipeline (301) and an inner pipeline (302) provided in a cavity of the outer pipeline (301); An ice-melting return pipe (5) is connected to the outer casing (202); An ice storage inlet pipe (6) is connected to the inner casing (201); The inner casing (201) and the outer casing (202) are coaxially installed to form a double-layer casing structure, the inner casing (201) is an ice storage channel and is connected to the inner pipeline (302), and the space between the inner casing (201) and the outer casing (202) is an ice melting channel and is connected to the outer pipeline (301); The outer casing (202) is provided with a return water section (2021) and a water outlet section (2022) from top to bottom; the ice-melting return water pipe (5) is in communication with the return water section (2021); the ice-melting outlet water pipe (7) is connected to the water outlet section (2022); and the lower ice-melting water distributor (4) is in communication with the water outlet section (2022).

2. The ice slurry cold storage device with an integrated ice storage and melting pipeline structure according to claim 1, characterized in that: The lower ice-melting water distributor (4) comprises a hollow cavity plate (401) inside, and a flow hole (402) communicating with the cavity of the cavity plate (401) is designed on a downward side thereof, and the ice-melting cold water at the bottom enters the cavity through the flow hole (402) and then flows out from the ice-melting water outlet pipe (7).

3. The ice slurry cold storage device with an integrated ice storage and melting pipeline structure according to claim 2, characterized in that: The lower ice-melting water distributor (4) divides the inner cavity of the tank body (1) into an upper and lower layer. The cavity plate (401) is provided with a plurality of through holes (403) to connect the upper and lower layers of the tank body (1). The ice-melting cold water in the upper layer of the tank body (1) enters the lower layer through the through holes (403), and the ice slurry is blocked in the upper layer of the tank body (1).

4. The ice slurry cold storage device with an integrated ice storage and melting pipeline structure according to claim 1, characterized in that: The outer pipeline (301) is fixed to the upper end of the column (2) at equal intervals in the circumferential direction, and each inner pipeline (302) is coaxially arranged in the inner cavity of the outer pipeline (301).

5. The ice slurry cold storage device with an integrated ice storage and ice melting pipeline structure according to claim 4, characterized in that: The inner pipeline (302) is provided with a plurality of ice slurry branches (303) with openings facing upward, and the outer pipeline (301) is provided with a plurality of return water branches (304) with openings facing downward.

6. The ice slurry cold storage device with an integrated ice storage and melting pipeline structure according to claim 2, characterized in that: The upper end of the upright column (2) is in contact with the upper top plate of the tank body (1), and a support column (8) is provided at the bottom of the cavity plate (401). The support column (8) extends downward and is fixed to the bottom of the tank body (1).

7. The ice slurry cold storage device with an integrated ice storage and melting pipeline structure according to claim 1, characterized in that: A heat insulation board is provided between the return water section (2021) and the outlet water section (2022) to separate the inner cavity of the return water section (2021) from the inner cavity of the outlet water section (2022), and the bottom of the inner sleeve (201) abuts against the heat insulation board.

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