An ice storage coil with a bottom thin ice blasting pipe and its usage method

Abstract

This invention relates to the field of pastry processing equipment, specifically to ice storage coils. An ice storage coil with a bottom thin ice venting pipe includes an ice storage coil body, which comprises a coil support, ice storage pipelines, and a venting device. The ice storage pipelines are mounted on the coil support and include an inlet manifold, an outlet manifold, a first pipe, and a second pipe. The venting device is located below the ice storage pipelines; the venting device includes a venting pipe with a first venting hole and a second venting hole. This invention improves the consistency of ice accumulation at different coil heights during ice storage and promotes the melting of the bottom thin ice during melting, thereby increasing the melting rate of the internal melting ice storage coil.

Description

Technical Field

[0001] This invention relates to the field of machinery, and more specifically, to ice storage coils. Background Technology

[0002] Ice storage systems can be used for localized cooling in factories or workshops, and can also achieve peak-shaving and valley-filling of electricity consumption, reducing the operating costs of ice storage central air conditioning systems. Currently, most ice storage systems use internal ice-melting coils. These coils are made of materials such as galvanized steel, HPDE, and stainless steel. Some HDPE and stainless steel internal ice-melting coils employ an air-blowing device. This device is only activated during ice melting. Three to four air-blowing pipes are evenly arranged along the length of the ice storage coil at its bottom, with air holes spaced approximately 0.2m-0.5m apart. The air holes face downwards. This device primarily enhances the ice melting rate in the later stages of the melting process. Typically, the air-blowing device is activated only when the ice volume has reached over 50%. Even with the air-blowing device activated, the average ice melting rate per hour is only about 15%, which is insufficient to meet user needs, affecting the localized cooling effect on the factory or workshop and reducing the overall effectiveness of the ice storage system.

[0003] No effective solutions have yet been proposed to address the problems in the relevant technologies. Summary of the Invention

[0004] The purpose of this invention is to provide an ice storage coil with a bottom thin ice blasting pipe and a method of using the same, in order to solve at least one of the above-mentioned technical problems.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] An ice storage coil with a bottom thin ice blowing pipe includes an ice storage coil body, characterized in that the ice storage coil body includes a coil support, an ice storage pipeline and a blowing device, the ice storage pipeline is disposed on the coil support, and the blowing device is disposed below the ice storage pipeline.

[0007] The ice storage pipeline includes an inlet manifold, an outlet manifold, at least three first pipes, and at least two second pipes flowing in the opposite direction to the first pipes. The first pipes and the second pipes are arranged sequentially and at intervals along the length of the coil support. The inlets of the first pipes and the second pipes are respectively connected to the upper and lower sides of the inlet manifold, and the outlets of the first pipes and the second pipes are respectively connected to the lower and upper sides of the outlet manifold.

[0008] The air-blowing device includes an air-blowing pipe disposed below the first pipe. The length direction of the air-blowing pipe is the same as that of the first pipe. The air-blowing pipe is provided with a first air-blowing hole and a second air-blowing hole. The air-blowing directions of the first air-blowing hole and the second air-blowing hole on the air-blowing pipe are respectively directed toward the second pipe located on both sides above the air-blowing pipe.

[0009] There are multiple first air holes and multiple second air holes, and the multiple first air holes and multiple second air holes are arranged sequentially and at intervals along the length of the air pipe.

[0010] The two ends of the blower are connected to two air inlet pipes respectively.

[0011] The two intake pipes are respectively located on both sides of the coil support.

[0012] The liquid inlet manifold includes a longitudinally arranged main liquid inlet pipe, a transversely arranged first secondary liquid inlet pipe, and a transversely arranged second secondary liquid inlet pipe. The middle part of the first secondary liquid inlet pipe is connected to the upper part of the main liquid inlet pipe, and the middle part of the second secondary liquid inlet pipe is connected to the lower part of the main liquid inlet pipe. The liquid inlet of the first pipe is connected to the first secondary liquid inlet pipe, and the liquid inlet of the second pipe is connected to the second secondary liquid inlet pipe.

[0013] The liquid outlet manifold includes a longitudinally arranged main liquid outlet pipe, a transversely arranged first secondary liquid outlet pipe, and a transversely arranged second secondary liquid outlet pipe. The middle part of the first secondary liquid outlet pipe is connected to the upper part of the main liquid outlet pipe, and the middle part of the second secondary liquid outlet pipe is connected to the lower part of the main liquid outlet pipe. The outlet of the first pipe is connected to the second secondary liquid outlet pipe, and the outlet of the second pipe is connected to the first secondary liquid outlet pipe.

[0014] The main inlet pipe and the main outlet pipe are arranged side by side and located on one side of the coil support. The first secondary inlet pipe is located above the first secondary outlet pipe, and the second secondary inlet pipe is located above the second secondary outlet pipe.

[0015] A method for using an ice storage coil with a bottom thin ice blasting pipe, characterized by comprising the following steps;

[0016] Step 1: Pre-cooling. Turn on the air blower to cause the water temperature around the ice storage coil to drop evenly until the return water temperature of the ice storage coil reaches below the preset temperature, and then the ice storage coil will start to store ice.

[0017] Step 2, ice storage: The flow path of the low-temperature refrigerant in the ice storage coil is divided into two paths. One path is the outlet on the upper side of the inlet manifold, the first pipe, and the inlet on the lower side of the outlet manifold, which forms a thick ice layer on the outside of the first pipe. The other path is the outlet on the lower side of the inlet manifold, the second pipe, and the inlet on the upper side of the outlet manifold, which forms a thin ice layer on the outside of the second pipe.

[0018] Step 3: Ice melting. Once the amount of ice melting in the ice storage coil reaches the preset value and the ice melting rate is lower than the cooling demand, the air blowing device is turned on. Air is blown into the thin ice layer on the outside of the second pipe located on both sides above the air blowing pipe through the first air blowing hole and the second air blowing hole on the air blowing pipe.

[0019] In step one, one hour before the ice storage coil begins storing ice, the air blower is turned on to cause the water temperature around the ice storage coil to drop evenly until the return water temperature of the coil reaches below 0°C.

[0020] In step three, when the amount of ice melted in the ice storage coil reaches 10% and the ice melt rate is lower than the cooling demand, the air blower is turned on.

[0021] In the process before ice storage, because some residual ice remains at the top of the ice storage coil after the internal ice-melting coil has melted, the water outside the ice storage coil will form a gradient distribution with a high temperature at the bottom and a low temperature at the top. During the initial ice storage stage, an air venting device is activated to cool the water outside the coil, ensuring a uniform water temperature along the vertical direction and avoiding the imbalance of ice storage volume caused by different vertical water temperatures.

[0022] During the ice-melting process, this invention uses an air-blowing device to specifically ventilate the thin ice at the bottom, which facilitates the preferential breaking of the thin ice at the bottom of the ice storage coil and promotes the breaking of ice layer by layer upwards. This effectively increases the ice-melting rate of the inner ice-melting coil and improves the ice-melting capacity of the ice storage system during peak and low electricity demand periods.

[0023] This invention provides an ice storage coil with a bottom thin ice venting pipe, which improves the consistency of ice accumulation at different heights of the coil during ice storage and promotes the melting of the bottom thin ice during ice melting, thereby increasing the melting rate of the internal ice-melting ice storage coil. Attached Figure Description

[0024] Figure 1 This is a partial structural side view of the present invention;

[0025] Figure 2 This is a top view of a portion of the structure of the air tube of the present invention;

[0026] Figure 3 This is a schematic diagram showing a portion of the structure of the present invention in use. Detailed Implementation

[0027] The specific embodiments of the present invention will be further described below with reference to the accompanying drawings.

[0028] like Figures 1-3 As shown, an ice storage coil with a bottom thin ice blowing pipe includes an ice storage coil body, which includes a coil support 1, ice storage pipelines, and a blowing device. The ice storage pipelines are mounted on the coil support 1, and the blowing device is located below the ice storage pipelines. The ice storage pipelines include an inlet manifold 2, an outlet manifold 3, at least three first pipes 8, and at least two second pipes 9 flowing in the opposite direction to the first pipes 8. The first pipes 8 and second pipes 9 are arranged sequentially and at intervals along the length of the coil support 1. The inlets of the first pipe 8 and the second pipe 9 are respectively connected to the upper and lower sides of the inlet manifold 2, and the outlets of the first pipe 8 and the second pipe 9 are respectively connected to the lower and upper sides of the outlet manifold 3. The aeration device includes an aeration pipe 5 located below the first pipe 8. The length direction of the aeration pipe 5 is the same as that of the first pipe 8. The aeration pipe 5 is provided with a first aeration hole 6 and a second aeration hole 7. The aeration direction of the first aeration hole 6 and the second aeration hole 7 on the aeration pipe 5 is respectively towards the second pipe 9 located on both sides above the aeration pipe 5. Through this design, the present invention provides an ice storage coil with a bottom thin ice aeration pipe 5, which improves the consistency of ice accumulation in coils of different heights during ice storage; and promotes the melting of the bottom thin ice during ice melting, thereby improving the melting rate of the internal ice melting type ice storage coil.

[0029] There are multiple first air holes 6 and multiple second air holes 7. The multiple first air holes 6 and multiple second air holes 7 are arranged sequentially and at intervals along the length of the air pipe 5 to ensure the air blowing effect of a single air pipe 5 on the ice layer outside the second pipes 9 on both sides above it, thereby accelerating the ice melting rate of the ice storage coil.

[0030] To ensure uniform airflow in each air-blowing pipe 5, two air inlet pipes 4 are connected to each end of the air-blowing pipe 5. The two air inlet pipes 4 are respectively located on both sides of the coil support 1. The air-blowing device includes a blower, and both air inlet pipes 4 are connected to the air outlet of the blower.

[0031] The inlet manifold 2 includes a longitudinally arranged main inlet pipe, a transversely arranged first secondary inlet pipe, and a transversely arranged second secondary inlet pipe. The middle part of the first secondary inlet pipe is connected to the upper part of the main inlet pipe, and the middle part of the second secondary inlet pipe is connected to the lower part of the main inlet pipe. The inlet of the first pipe 8 is connected to the first secondary inlet pipe, and the inlet of the second pipe 9 is connected to the second secondary inlet pipe. The outlet manifold 3 includes a longitudinally arranged main outlet pipe, a transversely arranged first secondary outlet pipe, and a transversely arranged second secondary outlet pipe. The middle part of the first secondary outlet pipe is connected to the upper part of the main outlet pipe, and the middle part of the second secondary outlet pipe is connected to the lower part of the main outlet pipe. The outlet of the first pipe 8 is connected to the second secondary outlet pipe, and the outlet of the second pipe 9 is connected to the first secondary outlet pipe. The main inlet pipe and the main outlet pipe are arranged side by side and located on one side of the coil support 1. The first secondary inlet pipe is located above the first secondary outlet pipe, and the second secondary inlet pipe is located above the second secondary outlet pipe. To facilitate the connection of the first pipe 8 to the inlet manifold 2 or the outlet manifold 3, and the connection of the second pipe 9 to the inlet manifold 2 or the outlet manifold 3, the structural layout of the ice storage coil is optimized.

[0032] When installing the ice storage coil, the coil support 1 can be 5618mm long, 1749mm wide, and 1660mm high. The air inlet pipe 4 of the air blowing device is made of DN32 PE pipe and is buried in the bottom frame of the coil support 1. The air blowing pipe 5 connected to the air inlet pipe 4 is made of 8 DN25 PE pipes and is located below the first pipe 8 between the two second pipes 9. Each air blowing pipe 5 has 16 air holes with a diameter of 6mm, which are respectively crisscrossed and face the two second pipes 9 above the air blowing pipe 5. The spacing between the air holes is 345mm. Through the optimized design of the air blowing pipe 5 and the air holes, the ice melting rate of the internal ice melting ice storage coil is greatly improved.

[0033] A method for using an ice storage coil with a bottom thin ice venting pipe 5 includes the following steps: Step 1, pre-cooling: turn on the venting device to uniformly lower the water temperature around the ice storage coil until the return water temperature of the ice storage coil reaches below the preset temperature, and then the ice storage coil begins to store ice; Step 2, ice storage: the flow path of the low-temperature refrigerant in the ice storage coil is divided into two paths. One path is the outlet on the upper side of the liquid inlet manifold 2, the first pipe 8, and the inlet on the lower side of the liquid outlet manifold 3 connected in sequence, so that a thick ice layer 10 is formed on the outside of the first pipe 8; the other path is the outlet on the lower side of the liquid inlet manifold 2, the second pipe 9, and the inlet on the upper side of the liquid outlet manifold 3 connected in sequence, so that a thin ice layer 11 is formed on the outside of the second pipe 9; Step 3, ice melting: after the amount of ice melting in the ice storage coil reaches the preset value, and the ice melting rate is lower than the cooling demand, turn on the venting device, and vent air through the first venting hole 6 and the second venting hole 7 on the venting pipe 5 to the thin ice layer on the outside of the second pipe 9 located on both sides above the venting pipe 5. In step one, one hour before the ice storage coil begins storing ice, the aeration device is turned on to promote a uniform decrease in the water temperature around the ice storage coil until the return water temperature of the coil reaches below 0°C. In step three, after the ice melting amount in the ice storage coil reaches 10% and the ice melting rate is lower than the cooling demand, the aeration device is turned on.

[0034] The ice storage coil in this patent undergoes pre-cooling during use, ensuring a uniform water temperature along the longitudinal direction. This avoids the imbalance in ice storage volume caused by varying longitudinal water temperatures, improving the consistency of ice accumulation at different heights of the coil. During ice storage, if... Figure 3 As shown, the temperature of the refrigerant in the ice storage coil changes with the flow path, with a low inlet temperature and a high outlet temperature. When the refrigerant flows through the inlet manifold 2, the first pipe 8, and the outlet manifold 3, a thick ice layer 10 forms on the outside of the first pipe 8. When the refrigerant flows through the inlet manifold 2, the second pipe 9, and the outlet manifold 3, a thin ice layer 11 forms on the outside of the second pipe 9. During ice melting, the air blower 5 is used to blow air into the thin ice layer at the bottom, which helps to break the thin ice at the bottom of the ice storage coil preferentially and promotes the breaking of ice layer by layer upwards, effectively improving the ice melting rate of the inner ice melting coil.

[0035] Finally, it should be noted that the above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. An ice storage coil with a bottom thin ice venting pipe, comprising an ice storage coil body, characterized in that, The ice storage coil body includes a coil support, an ice storage pipeline, and an air blowing device. The ice storage pipeline is installed on the coil support, and the air blowing device is installed below the ice storage pipeline. The ice storage pipeline includes an inlet manifold, an outlet manifold, at least three first pipes, and at least two second pipes flowing in the opposite direction to the first pipes. The first pipes and the second pipes are arranged sequentially and at intervals along the length of the coil support. The inlets of the first pipes and the second pipes are respectively connected to the upper and lower sides of the inlet manifold, and the outlets of the first pipes and the second pipes are respectively connected to the lower and upper sides of the outlet manifold. The air-blowing device includes an air-blowing pipe disposed below the first pipe, the length direction of the air-blowing pipe being the same as the length direction of the first pipe, the air-blowing pipe having a first air-blowing hole and a second air-blowing hole, the air-blowing direction of the first air-blowing hole and the second air-blowing hole on the air-blowing pipe respectively facing the second pipe located on both sides above the air-blowing pipe, the liquid inlet manifold includes a longitudinally arranged main liquid inlet pipe, a transversely arranged first liquid inlet auxiliary pipe, and a transversely arranged second liquid inlet auxiliary pipe, the middle part of the first liquid inlet auxiliary pipe being connected to the upper part of the main liquid inlet pipe, the middle part of the second liquid inlet auxiliary pipe being connected to the lower part of the main liquid inlet pipe, the liquid inlet of the first pipe being connected to the first liquid inlet auxiliary pipe, and the liquid inlet of the second pipe being connected to the second liquid inlet auxiliary pipe; The liquid outlet manifold includes a longitudinally arranged main liquid outlet pipe, a transversely arranged first secondary liquid outlet pipe, and a transversely arranged second secondary liquid outlet pipe. The middle part of the first secondary liquid outlet pipe is connected to the upper part of the main liquid outlet pipe, and the middle part of the second secondary liquid outlet pipe is connected to the lower part of the main liquid outlet pipe. The outlet of the first pipe is connected to the second secondary liquid outlet pipe, and the outlet of the second pipe is connected to the first secondary liquid outlet pipe.

2. An ice storage coil with a bottom thin ice blasting pipe as described in claim 1, characterized in that, There are multiple first air holes and multiple second air holes, and the multiple first air holes and multiple second air holes are arranged sequentially and at intervals along the length of the air pipe.

3. An ice storage coil with a bottom thin ice blasting pipe as described in claim 1, characterized in that, The two ends of the blower are connected to two air inlet pipes respectively.

4. An ice storage coil with a bottom thin ice blasting pipe as described in claim 3, characterized in that, The two intake pipes are respectively located on both sides of the coil support.

5. An ice storage coil with a bottom thin ice blasting pipe as described in claim 1, characterized in that, The main inlet pipe and the main outlet pipe are arranged side by side and located on one side of the coil support. The first secondary inlet pipe is located above the first secondary outlet pipe, and the second secondary inlet pipe is located above the second secondary outlet pipe.

6. A method of using an ice storage coil with a bottom thin ice blasting pipe, characterized in that, The ice storage coil with a bottom thin ice blasting pipe as described in claims 1 to 5 includes the following steps; Step 1: Pre-cooling. Turn on the air blower to cause the water temperature around the ice storage coil to drop evenly until the return water temperature of the ice storage coil reaches below the preset temperature, and then the ice storage coil will start to store ice. Step 2, ice storage: The flow path of the low-temperature refrigerant in the ice storage coil is divided into two paths. One path is the outlet on the upper side of the inlet manifold, the first pipe, and the inlet on the lower side of the outlet manifold, which forms a thick ice layer on the outside of the first pipe. The other path is the outlet on the lower side of the inlet manifold, the second pipe, and the inlet on the upper side of the outlet manifold, which forms a thin ice layer on the outside of the second pipe. Step 3: Ice melting. Once the amount of ice melting in the ice storage coil reaches the preset value and the ice melting rate is lower than the cooling demand, the air blowing device is turned on. Air is blown into the thin ice layer on the outside of the second pipe located on both sides above the air blowing pipe through the first air blowing hole and the second air blowing hole on the air blowing pipe.

7. A method of using an ice storage coil with a bottom thin ice blasting pipe as described in claim 6, characterized in that, In step one, one hour before the ice storage coil begins storing ice, the air blower is turned on to cause the water temperature around the ice storage coil to drop evenly until the return water temperature of the coil reaches below 0°C.

8. A method of using an ice storage coil with a bottom thin ice blasting pipe as described in claim 6, characterized in that, In step three, when the amount of ice melted in the ice storage coil reaches 10% and the ice melt rate is lower than the cooling demand, the air blower is turned on.

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