Double-pipe type ice storage device

Abstract

The utility model provides a double-pipe type ice storage device which comprises a tank body, a refrigerant pipe and an ice melting pipe, the refrigerant pipe and the ice melting pipe are sleeved in a spiral pipe sleeve side by side to form a spiral coil pipe, the spiral coil pipe is vertically arranged in an inner cavity of the tank body, the refrigerant pipe is connected with a refrigerating unit through a pipeline, and the ice melting pipe is connected with an ice melting heat exchanger through a pipeline. According to the double-pipe ice storage device, the refrigerant pipe and the ice melting pipe are arranged in the spiral pipe sleeve side by side in the sleeved mode to form the spiral coil pipe, internal pipelines can be modularized, the elasticity of the pipelines is improved, the heat exchange area is increased, and therefore the double-pipe ice storage device is longer in service life, higher in heat exchange efficiency and more convenient to maintain in the later period.

Description

Technical Field

[0001] The utility model relates to the technical field of ice storage, in particular to a double-tube ice storage device. Background Art

[0002] As the electricity consumption in society continues to grow, more and more regions are beginning to implement time-based electricity prices in order to meet the electricity demand. Ice storage technology can make a large amount of ice during the night when electricity prices are low, and use the cold energy stored in ice during the day when electricity prices are high to cool down and industrial production, so it has attracted the attention of more and more companies.

[0003] At present, ice storage devices are equipped with refrigerant pipes and ice melting pipes. The refrigerant pipes are used to make ice, and the ice melting pipes are used to circulate the refrigerant and exchange heat with ice. In order to speed up the ice making speed and the ice melting heat exchange speed, the ice storage device is usually densely covered with refrigerant pipes and ice melting pipes, which makes the subsequent maintenance very difficult. In addition, the change in the volume of the ice layer during the freezing and melting process will cause the refrigerant pipes and ice melting pipes to deform. Frequent deformation will cause some pipes to be unable to recover, causing the spacing between the pipes to change, thereby affecting the efficiency of ice making and ice melting, and even damaging these pipes. Utility Model Content

[0004] In view of the defects of the background technology, the utility model proposes a double-tube ice storage device, which arranges the refrigerant pipe and the ice melting pipe side by side in a spiral pipe sleeve to form a spiral coil, so that the internal pipeline can be modularized, the pipeline elasticity can be improved, and the heat exchange area can be increased, so that the double-tube ice storage device has a longer service life, higher heat exchange efficiency, and is more convenient for later maintenance.

[0005] The utility model proposes a double-tube ice storage device, comprising a tank body, a refrigerant pipe and an ice-melting pipe. The refrigerant pipe and the ice-melting pipe are arranged side by side in a spiral pipe sleeve to form a spiral coil. The spiral coil is vertically arranged in the inner cavity of the tank body. The refrigerant pipe is connected to a refrigeration unit through a pipeline, and the ice-melting pipe is connected to an ice-melting heat exchanger through a pipeline.

[0006] Preferably, the spiral tube sleeve is made of stainless steel, and its cross section is in a horizontal shuttle shape.

[0007] Preferably, the tank body is divided into an ice storage compartment, a top compartment and a bottom compartment by horizontally arranged partitions, the top end of the ice melting pipe is connected to the top compartment, and the bottom end is connected to the bottom compartment, the top compartment is provided with an ice melting water inlet pipe and an air inlet, the bottom compartment is provided with an ice melting drainage pipe and an air outlet, and the air inlet is provided with an air pump.

[0008] Preferably, a condenser pipe is provided in the bottom cabin, the condenser pipe and the refrigerant pipe are connected in series, and a condensate drain pipe is also provided in the bottom cabin;

[0009] The air inlet and the air outlet are connected via a circulating air duct.

[0010] Preferably, a plurality of spiral coils are arranged in a ring shape in the ice storage compartment.

[0011] Preferably, a section of condenser is connected in series at the bottom end of the refrigerant tube in each spiral coil, a first refrigerant distributor is provided in the middle of the bottom cabin, and all the condenser tubes are connected to the first refrigerant distributor.

[0012] Preferably, the condenser is serpentine-shaped.

[0013] Preferably, the top compartment is provided with a second refrigerant distributor, and the top end of the refrigerant pipe in each spiral coil is connected to the second refrigerant distributor through a pipeline.

[0014] Preferably, an agitator is also provided in the ice storage compartment.

[0015] Preferably, the agitator comprises a mixing drum and a pressing piece, wherein the mixing drum is vertically arranged in the center of the ice storage compartment, and the pressing piece is slidably arranged in the mixing drum;

[0016] The pressing piece comprises a first pressing rod, a second pressing rod, a first pressing plate and a second pressing plate, wherein the first pressing plate is arranged at the bottom end of the first pressing rod, the second pressing plate is arranged at the bottom end of the second pressing rod, the first pressing rod is sleeved in the second pressing rod, and the first pressing plate and the second pressing plate are provided with a residual part;

[0017] When the pressing piece is pressed downward, the first pressing rod is retracted inside the second pressing rod, and the first pressing plate and the second pressing plate are spliced ​​into a complete pressing plate;

[0018] When the pressing piece rises, the first pressing rod extends out of the second pressing rod, and the first pressing plate is separated from the second pressing plate.

[0019] The beneficial effects of the utility model include: after the refrigerant pipe and the ice-melting pipe are arranged side by side in the spiral pipe sleeve to form a spiral coil, the spiral pipe sleeve can protect the refrigerant pipe and the ice-melting pipe to prevent them from rusting due to long-term immersion in liquid, and can expand the heat exchange area of ​​the refrigerant pipe and the ice-melting pipe, so that the double-tube ice storage device can obtain higher heat exchange efficiency; the modular spiral coil can be replaced more conveniently, which is convenient for later maintenance; the ice-melting pipe can not only circulate the refrigerant, but also ventilate to dry its interior, so as to prevent the internal water from condensing into ice and affecting the ice melting efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The present invention is described in detail below with reference to the embodiments and drawings, wherein:

[0021] Figure 1 The utility model is a three-dimensional schematic diagram of a double-tube ice storage device.

[0022] Figure 2 It is a cross-sectional view of the double-tube ice storage device of the utility model.

[0023] Figure 3 It is an interior view of the top cabin of the utility model.

[0024] Figure 4 It is an interior view of the bottom cabin of the utility model.

[0025] Figure 5 It is an inner view of the ice storage cabin of the utility model.

[0026] Figure 6 It is a cross-sectional view of the spiral coil of the utility model.

[0027] Figure 7 It is a structural diagram of the pressing piece of the utility model.

[0028] Reference numerals:

[0029] 1-tank body, 11-ice storage tank, 12-top tank, 13-bottom tank, 2-spiral coil, 21-refrigerant pipe, 22-ice melting pipe, 221-ice melting water inlet pipe, 222-air inlet, 223-ice melting drain pipe, 224-air outlet, 225-circulating air duct, 23-spiral pipe sleeve, 3-air pump, 4-condenser, 41-condensate drain pipe, 51-first refrigerant distributor, 52-second refrigerant distributor, 6-mixer, 61-mixing drum, 62-first pressure rod, 63-second pressure rod, 64-first pressure plate, 65-second pressure plate, 66-remaining part, 67-water inlet hole. DETAILED DESCRIPTION

[0030] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0031] Thus, a feature indicated in this specification will be used to illustrate one of the features of an embodiment of the utility model, rather than implying that each embodiment of the utility model must have the described feature. In addition, it should be noted that this specification describes many features. Although some features can be combined together to illustrate possible system designs, these features can also be used in other combinations that are not explicitly described. Thus, unless otherwise stated, the described combinations are not intended to be limiting.

[0032] The principle of the present utility model is described in detail below with reference to the accompanying drawings and embodiments.

[0033] Reference Figure 1-7The utility model proposes a double-tube ice storage device, including a tank body 1, a refrigerant pipe 21 and an ice-melting pipe 22. The refrigerant pipe 21 and the ice-melting pipe 22 are arranged side by side in a spiral pipe sleeve 23 to form a spiral coil 2. The spiral coil 2 is vertically arranged in the inner cavity of the tank body 1. The refrigerant pipe 21 is connected to the refrigeration unit through a pipeline, and the ice-melting pipe 22 is connected to the ice-melting heat exchanger through a pipeline. After the refrigerant pipe 21 and the ice-melting pipe 22 are arranged side by side in the spiral pipe sleeve 23 to form a spiral coil 2, the spiral pipe sleeve 23 can protect the refrigerant pipe 21 and the ice-melting pipe 22 from rusting due to long-term immersion in liquid, and can expand the heat exchange area of ​​the refrigerant pipe 21 and the ice-melting pipe 22, so that the double-tube ice storage device can obtain a higher heat exchange efficiency; the modular spiral coil 2 can be replaced more conveniently, which is convenient for later maintenance.

[0034] In this embodiment, the spiral tube sleeve 23 is made of stainless steel to prevent surface corrosion. The cross section of the spiral tube sleeve 23 is a horizontal shuttle shape, which can increase the heat exchange area of ​​the refrigerant tube 21 and the ice melting tube 22.

[0035] In this embodiment, the tank body 1 is divided into an ice storage tank 11, a top tank 12 and a bottom tank 13 by a horizontally arranged partition. The top end of the ice melting pipe 22 is connected to the top tank 12, and the bottom end is connected to the bottom tank 13. The top tank 12 is provided with an ice melting water inlet pipe 221 and an air inlet 222, and the bottom tank 13 is provided with an ice melting drainage pipe 223 and an air outlet 224. The air inlet 222 is provided with an air pump 3. A large amount of aqueous solution is stored in the ice storage tank 11 for ice making and ice storage. When making ice, the refrigerant passes through the refrigerant pipe 21, and the aqueous solution gradually condenses on the outside of the spiral coil 2. When melting ice, the refrigerant used for melting ice enters the top tank 12 from the ice melting water inlet pipe 221, and then the refrigerant enters from the opening at the top end of the ice melting pipe 22, flows through the ice melting pipe 22, and then enters the bottom tank 13 from the opening at the bottom end of the ice melting pipe 22, and then flows from the ice melting drainage port to the heat exchanger to exchange heat with the air conditioning return water. Due to the spiral shape, a portion of the brine may remain in the ice melting pipe 22. The remaining brine will condense in the ice melting pipe 22 during ice making and block the pipe, affecting the efficiency during ice melting. Therefore, after ice melting, the water in the ice melting pipe 22 is discharged, and the remaining brine is ventilated in the ice melting pipe 22 to discharge.

[0036] In this embodiment, a condenser pipe 4 is provided in the bottom cabin 13, and the condenser pipe 4 and the refrigerant pipe 21 are connected in series. The bottom cabin 13 is also provided with a condensed water drain pipe 41, and the air inlet 222 and the air outlet 224 are connected by a circulating air pipe 225. The air used to dry the ice melting pipe 22 is circulated in the top cabin 12 and the bottom cabin 13, and the water vapor in the circulating air is extracted by using the coldness of the refrigerant remaining in the refrigerant pipe 21 during ice making.

[0037] In this embodiment, six spiral coils 2 are arranged in a ring shape in the ice storage tank 11. A section of condenser tube 4 is connected in series at the bottom end of the refrigerant tube 21 in each spiral coil 2. A first refrigerant distributor 51 is provided in the middle of the bottom tank 13, and all condenser tubes 4 are connected to the first refrigerant distributor 51. The condenser tube 4 is serpentine, and the six condenser tubes 4 are evenly distributed in the bottom tank 13 in a fan shape.

[0038] The top compartment 12 is provided with a second refrigerant distributor 52, and the top end of the refrigerant tube 21 in each spiral coil 2 is connected to the second refrigerant distributor 52 through a pipeline. The refrigerant enters from the second refrigerant distributor 52, and then is distributed into the refrigerant tubes 21 of the six spiral coils 2, and then is collected in the first refrigerant distributor 51 through the condensing pipe 4 in the bottom compartment 13, and finally flows back to the refrigeration host.

[0039] In this embodiment, a stirrer 6 is further provided in the ice storage chamber 11, and the stirrer 6 is used to stir the aqueous solution so that the aqueous solution can fully contact with the spiral coil 2 before freezing, thereby increasing the overall cooling speed.

[0040] The agitator 6 includes a mixing drum 61 and a pressing piece. The mixing drum 61 is vertically arranged in the center of the ice storage chamber 11, and the pressing piece is slidably arranged in the mixing drum 61; the pressing piece includes a first pressing rod 62, a second pressing rod 63, a first pressing plate 64 and a second pressing plate 65. The first pressing plate 64 is arranged at the bottom end of the first pressing rod 62, and the second pressing plate 65 is arranged at the bottom end of the second pressing rod 63. The first pressing rod 62 is sleeved in the second pressing rod 63, and the first pressing plate 64 and the second pressing plate 65 are provided with a missing portion 66; when the pressing piece is pressed down, the first pressing rod 62 shrinks in the second pressing rod 63, and the first pressing plate 64 and the second pressing plate 65 are spliced ​​into a complete pressing plate; when the pressing piece rises, the first pressing rod 62 extends out of the second pressing rod 63, and the first pressing plate 64 and the second pressing plate 65 are separated. The operating principle of the agitator 6 is as follows: when the pressing piece is pressed down, the first pressing plate 64 and the second pressing plate 65 are spliced ​​into a pressing plate, and the pressing plate presses the aqueous solution out of the opening at the bottom of the agitator 61 in the agitator drum 61, and the water flow spreads to the surroundings at the bottom of the ice storage tank 11, and then rises along the tank wall. The water inlet hole 67 on the side wall of the agitator drum 61 near the water surface will continuously take in water to replenish the pressed aqueous solution. After the pressing plate reaches the bottom, it will be lifted up, and the separated first pressing plate 64 and second pressing plate 65 will reveal a gap, so that the first pressing plate 64 and second pressing plate 65 can rise smoothly; in addition, the speed of pressing down will be faster than the speed of lifting up, reducing the water outflow from the water inlet hole during lifting to affect the water circulation. During the ice making process, floating ice may be generated in the water, and floating ice will remain if the ice is not fully melted. If an ordinary fan blade type agitator 6 is used, these floating ice will collide and damage the fan blades. The agitator 6 of this embodiment can avoid this situation.

[0041] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A double-tube ice storage device, comprising a tank, a refrigerant pipe and an ice melting pipe, characterized in that: The refrigerant pipe and the ice-melting pipe are arranged side by side in the spiral pipe sleeve to form a spiral coil, and the spiral coil is vertically arranged in the inner cavity of the tank body. The refrigerant pipe is connected to the refrigeration unit through a pipeline, and the ice-melting pipe is connected to the ice-melting heat exchanger through a pipeline.

2. The double-tube ice storage device according to claim 1, characterized in that: The spiral tube sleeve is made of stainless steel, and its cross section is in a horizontal shuttle shape.

3. The double-tube ice storage device according to claim 2, characterized in that: The tank body is divided into an ice storage compartment, a top compartment and a bottom compartment by horizontally arranged partitions. The top end of the ice melting pipe is connected to the top compartment, and the bottom end is connected to the bottom compartment. The top compartment is provided with an ice melting water inlet pipe and an air inlet, the bottom compartment is provided with an ice melting drainage pipe and an air outlet, and the air inlet is provided with an air pump.

4. The double-tube ice storage device according to claim 3, characterized in that: The bottom cabin is provided with a condenser pipe, the condenser pipe and the refrigerant pipe are connected in series, and the bottom cabin is also provided with a condensate drainage pipe; The air inlet and the air outlet are connected via a circulating air duct.

5. The double-tube ice storage device according to claim 4, characterized in that: A plurality of spiral coils are arranged in a ring shape in the ice storage compartment.

6. The double-tube ice storage device according to claim 5, characterized in that: A section of condenser is connected in series at the bottom end of the refrigerant tube in each spiral coil, a first refrigerant distributor is provided in the middle of the bottom tank, and all the condenser tubes are connected to the first refrigerant distributor.

7. The double-tube ice storage device according to claim 6, characterized in that: The condenser is in a snake shape.

8. The double-tube ice storage device according to claim 7, characterized in that: The top compartment is provided with a second refrigerant distributor, and the top end of the refrigerant pipe in each spiral coil is connected to the second refrigerant distributor through a pipeline.

9. The double-tube ice storage device according to claim 8, characterized in that: A stirrer is also provided in the ice storage compartment.

10. The double-tube ice storage device according to claim 9, characterized in that: The agitator comprises a mixing drum and a pressing piece, wherein the mixing drum is vertically arranged in the center of the ice storage compartment, and the pressing piece is slidably arranged in the mixing drum; The pressing member comprises a first pressing rod, a second pressing rod, a first pressing plate and a second pressing plate, wherein the first pressing plate is arranged at the bottom end of the first pressing rod, the second pressing plate is arranged at the bottom end of the second pressing rod, the first pressing rod is sleeved in the second pressing rod, and the first pressing plate and the second pressing plate are provided with a broken part; When the pressing member is pressed downward, the first pressing rod is contracted inside the second pressing rod, and the first pressing plate and the second pressing plate are spliced ​​into a complete pressing plate; When the pressing member rises, the first pressing rod extends out of the second pressing rod, and the first pressing plate and the second pressing plate are separated.

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