JPH0339836A - Ice heat accumulating tank device - Google Patents

Abstract

PURPOSE:To cause a refrigerant to flow to a heat accumulating tank in a laminar air flow state, to keep temperature distribution in the tank in a uniform state, and to improve thermal efficiency by a method wherein a discharge pipe is extended from an ice making machine to the heat accumulating tank, and discharge holes are formed in the peripheral surface of the discharge pipe positioned in the heat accumulating tank. CONSTITUTION:A discharge pipe 5 is formed in the lower side of a tank body 16 of a heat accumulating tank and extended from an ice making machine to a position located in a level higher than that of a water suction pipe 4 and a feed pipe 6. The discharge pipe 5 is formed with four pipes the tips of which are closed, and arranged in parallel to each other in the heat accumulating tank in which the pipes are extended. A plurality of oblong hole 27 serving as an up-discharge hole are formed on the upper side of the peripheral surface of each pipe at intervals of a specified distance in the longitudinal direction of a pipe. The oblong hole 27 is formed in size determined through calculation of the hole part so that an influence is prevented from being exercised on surroundings by a velocity of flow when ice R delivered through the oblong hole 27 is raised 1m in order to prevent the generation of a turbulent flow at the lower part of the interior of the tank due to the velocity of flow of the ice R. This constitution generates a laminar air flow in which an influence is prevented from being exercised on the periphery of the interior of the tank by the velocity of flow in a position where the ice R delivered through the oblong hole 27 is raised 1m.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to an ice heat storage tank device installed for storing heat a in large-scale air conditioning equipment such as office buildings and hospitals.

[Prior Art] Conventionally, in an ice heat storage tank device, the refrigerant generated by the ice maker is sent into the heat storage tank through a connecting pipe that penetrates into the tank body, and the refrigerant is discharged from the opening at the tip of the connecting pipe. It had become.

[Problems to be Solved by the Invention] However, in the conventional ice heat storage tank device, turbulence occurs in the lower part of the tank due to the refrigerant being discharged from the opening at the end of the connecting pipe penetrated into the heat storage tank. Therefore, there was a problem that the temperature distribution within the tank was not maintained uniformly, resulting in a decrease in thermal efficiency.

This invention was made to solve these problems with the conventional technology, and its purpose is to flow the refrigerant from the ice maker into the heat storage tank in a laminar flow without causing turbulence. An object of the present invention is to provide an ice heat storage tank device capable of increasing thermal efficiency by maintaining uniform temperature distribution within the tank.

[Means for Solving the Problems] In order to achieve the above object, the present invention penetrates a discharge pipe from an ice maker into a heat storage tank, and provides a discharge hole in the circumferential surface of the discharge pipe located in the heat storage tank. It is something that is formed. The discharge pipe may be a pipe inserted horizontally into the heat storage tank, and the discharge holes may be a plurality of elongated holes formed upward on the circumferential surface of the pipe inside the heat storage tank.

[Operation] In the ice heat storage tank device configured as described above, the refrigerant sent from the ice maker is not blown out from the tip of the discharge pipe at the mainstream velocity, but is formed on the circumferential surface of the discharge pipe. The main flow velocity is suppressed and the fluid is discharged from the plurality of discharge holes. The refrigerant discharged from the lower part of the tank without causing turbulence flows upward in a laminar flow.

[Example] Hereinafter, an example embodying the present invention will be described with reference to FIGS. 1 to 1.
This will be explained according to Figure 8.

As shown in FIG. 3, the heat storage tank 1 of the ice heat storage tank device is interconnected to an ice maker 2 that generates slurry water (hereinafter abbreviated as "ice") R as a refrigerant and an air conditioner 3. ing.

The ice maker 2 generates the ice R by sucking cold water from the heat storage tank 1 through a water suction pipe 4, and supplies the water R to the heat storage tank 1 through a discharge pipe 5, which will be described later. Further, the air conditioner 3 exchanges heat for cooling etc. by using the cold water supplied from the lower part of the heat storage tank 1 via the supply pipe 6, and also transfers the water whose temperature has become high due to the heat exchange to the water supply pipe 6. The heat is sent to the heat storage tank 1 via the heat storage tank 1.

Next, to explain about this heat storage tank 1, as shown in Fig. 1.2, the heat storage tank 1 is formed into a cylindrical shape with a circular planar cross-section inside the tank, and is made of a base concrete of protrusions provided on the roof of a building. 8 is supported and fixed via a support frame 9 or the like.

As shown in Fig. 6.8, the support frame 9 consists of a peripheral portion 9a, a branch portion 9b, a reinforcing portion 9C, and a fixed portion 9d.

The peripheral edge part 9a is formed of a steel material with a channel-shaped cross section,
They are arranged on the base concrete 8 in a circular shape that is substantially the same as the lower edge of the heat storage tank 1. Incidentally, the peripheral edge part 9a can be divided into four circular arc parts.The zero chord part 9b is formed of a steel material with a short cross-sectional area, and is constructed at a constant interval within the peripheral edge part 9a. . The reinforcing portions 9c are made of a steel material having a cross-sectional shape, and are installed perpendicularly to the branch portions 9b at equal intervals between each of the branch portions 9b and the peripheral portion 9a. Note that the upper end surfaces of the peripheral portion 9a, the branch portions 9b, and the reinforcing portions 9c form the same plane. The fixing portion 9d is formed into a plate shape, and is welded and protrudes horizontally from the inner side of the lower edge of the peripheral edge portion 9a that contacts the base concrete 8. This support frame 9 is fixedly supported by foundation bolts 10 buried in the base concrete 8 at the fixed portions 9d.

A substrate 11 made of stainless steel is placed on the upper end surface of the support frame 9, and is formed in a circular shape approximately the same as the outer periphery of the upper end surface of the peripheral edge portion 9a. cradle 1 shown
2 is placed.

The pedestal 12 consists of a wooden frame 13 and a heat insulating material 14.
3 is formed to have the same shape as the upper end surface of the support frame 9, and similarly includes a peripheral portion 13a, a chord portion 13b, and a reinforcing portion 13C. Note that a heat insulating material 13 made of styrene foam is fitted into a space partitioned by the chord part 13b and the reinforcing part 13C within the peripheral edge part 13a of the wooden frame 13. The substrate 11 and the pedestal 12 make up the heat storage tank 1.
], constitutes a heat insulation structure for 5.

A stainless steel bottom plate 15 formed in a regular dodecagon is placed on the pedestal 12, as shown by the two-dot chain line in FIG. A tank body 16 of the heat storage tank 1 is placed.

The tank main body 16 is composed of stainless steel cylinders formed in the same diameter and stacked in four stages, and the joint portion of each cylinder is a flange portion 17 that abuts each other on the outer surface side of the tank main body 16.
are wedged and welded at equal intervals, and their joints are fixed by welding on the inner surface of the tank body 16. Note that among the stacked cylinders, the height of only the uppermost cylinder is half that of the other cylinders.

The lower edge of the tank body 16 is fixed to the bottom plate 15 by welding, and the outer peripheral edge of the lower edge is tightly surrounded by a fixing member 18. The fixing member 18 has an angular cross section and is formed in an arc shape along the outer peripheral edge of the tank body 16. Note that the fixing member 18 is provided with reinforcing ribs at regular intervals. As shown in FIG. 8, the fixing member 18 is attached to the peripheral edge 9a of the support frame 9 by bolts 19 and nuts 20, together with the bottom plate 15, the wooden frame peripheral part 13a of the pedestal 12, and the base plate 11, which are overlapped below. It is tightened and fixed.

Further, a support plate 21 is attached to each side portion 15a constituting the outer edge of the bottom plate 15, as shown in FIG. The support plate 21 has a vertical piece 2 extending upward from the side portion 15a.
A diagonal piece 2 extending obliquely downward from the side 15a as in 1a.
1b, and the tip of the diagonal piece 21b is clamped and fixed between the substrate 11 and the wooden frame 13. A heat insulating material 22 is fitted into a space surrounded by the diagonal piece 21b of the support plate 21, the bottom plate 15, and the wooden frame peripheral portion 13a.

Note that the outer surface of each lower end of the lowermost heat insulating panel 23 of the heat insulating panels 23 to be described later comes into contact with the inside of the vertical piece 21a of the support plate 21, that is, the side corresponding to the tank body 16, and this vertical piece 21a The lower end of the gA temperature panel 23 is positioned and supported.

A lagging layer 2 made of expanded polystyrene is sprayed on the outer peripheral surface of the tank body 16 along the shape of the tank body 16.
4 is applied to the tank body 16, and a large number of heat insulation panels 23 shown in FIGS. 9 and 10 are attached to the surface thereof so as to cover the entire outer peripheral surface of the tank body 16. The inner surface of the heat insulation panel 23 corresponding to the outer peripheral surface of the tank body 16 is pressed into a concave shape, and a heat insulation member 25 made of foamed polystyrene molded to fit into the recess is fitted into the recess. It is.

As shown in FIG. 4.5, a water suction pipe 4 connected to the ice maker 2 is installed through the lower side of the tank body 16, and a supply pipe 6 connected to the air conditioner 3 is also installed through the lower side surface of the tank body 16. Further, a lower inspection port 26 with a double glass structure for inspecting the inside of the tank is provided at a height that is visible to the operator. Further, a discharge pipe 5 extending from the ice maker 2 is passed through the lower side surface at a position above the water suction pipe 4 and the supply pipe 6.

The discharge pipe 5 has a closed end 4 as shown in FIG.
The pipes are arranged parallel to each other in the penetrated heat storage tank 1, and each pipe has a plurality of elongated holes 27 as upward discharge holes at regular intervals in the longitudinal direction of the pipes on the upper side of the circumferential surface of each pipe. It is formed. In order to prevent turbulence in the lower part of the tank due to the flow rate of the ice R being discharged, the long hole 27 is designed so that when the ice R discharged from the long hole 27 rises by 1 m, the influence of the flow rate on the surrounding area disappears. The hole portion is formed to the calculated size.

Incidentally, in this example, the pipe cross-sectional area is 50CII.
, the flow rate Q of ice R in the pipe is set to 14 ofl/nin, and the pipe is provided with three elongated holes 27 each having a width of 2 C11 and a length of 50 cm. Therefore, the area A of the discharge hole constituted by the elongated hole 27 is A = (0,5x0°02)x3
==o, 03 m2, and the initial flow velocity VO of ice R from the same discharge hole is found to be 0°078 m/s from VO=Q/A. From this, assuming that the powder flow constant in the stationary fluid is 3.5 (experimental value), the flow velocity Um of the ice R at a position where the distance MX from the discharge hole is 1 m is calculated as follows: Um = (3,5
xUo ) ÷ J7fudingdingτE2.73X10-”m/
It becomes s. Therefore, the ice R discharged from the long hole 27 is 1 m.
At the elevated position, the flow velocity creates a laminar flow that does not affect the surroundings inside the tank.

Note that the discharge pipes 5 are fixedly supported in a horizontal state by support rods 28 that extend from the bottom plate 15 at the tip ends of each pipe.

As shown in Figures 13 and 14, the tip of a first fall prevention member 29 is welded and fixed to the outer surface of a part of the middle part of the tank body 16, and the base end of the first fall prevention member 29 is bolted to the concrete beam A. It is worn. Also, the tank body 16 is located 180 degrees opposite to the first fall prevention member 29 with respect to the tank body 16.
The tip of the second fall prevention member 30 is welded and fixed to a position near the upper end of the second fall prevention member 6, and the base end of the second fall prevention member 30 is bolted to the concrete beam B. In addition, the mA
Since the beam B is provided at a distance from the outer circumferential surface of the tank body 16, the arm portion 2 of the first fall prevention member 29
The arm portion 30a of the second fall prevention member 30 is formed longer than the arm portion 9a.

Further, an upper inspection port 31 similar to the lower inspection port 26 is provided on the upper surface of the tank body 16, that is, the topmost cylindrical portion, and extends horizontally through approximately the center point of the planar section of the tank body 16. Photosensor windows 32 are provided at two positions where the straight line intersects the upper side surface of the homogeneous main body 16. In addition, a water pipe 7 installed from the air conditioner 3 to send water after heat exchange is penetrated into the upper side of the tank body 16, and a water supply pipe 33 for supplying refrigerant solution is penetrated. .

A top plate 34 having an umbrella-shaped cross section is fitted to the upper edge of the tank body 16, and its peripheral edge is welded and fixed to the tank body i6. As shown in FIG. 5, on the upper surface of the top plate 34, the upper end of a pillar 35, which will be described later, is exposed at the center, and manholes 36 as entrances for internal inspection are provided on all sides around the pillar 35. In the figure, 37 is the upper end of a thermopipe for detecting the hot water temperature in the tank exposed on the upper surface of the top plate 34, and 38 is a preliminary hole for detection.

Further, the upper surface of the top plate 34 is lagged with foamed polystyrene having heat retaining properties, as shown by the two-dot chain line in FIG. 15, and a stainless steel plate is coated thereon. Further, a handrail 39 is provided on the peripheral edge of the upper surface, and a handrail ladder 4o connected to the regenerative handrail 39 extends downward along one outer surface of the tank body 16.

Further, a cylindrical support 35 is erected at the center of the heat storage tank 1, which is made up of the bottom plate 15, the tank body 16, and the top plate 34, and penetrates through the bottom plate 15 and the top plate 34. In addition, the same pillar 35
A thermopipe 37 for detecting the temperature inside the tank is erected on one side of the heat storage tank 1 in parallel with this, penetrating from the bottom plate 15 to the top plate 34. A ventilation hole 41 is provided at the upper end of the pillar 35 exposed above the top plate 34, while a joint part with a support/holding member 42 that fixedly supports the pillar 35 with respect to the bottom plate 15 is provided at the lower end of the pillar 35. An opening 43 is formed in the opening 43 .

As shown in FIGS. 15 and 16, in the heat storage tank 1, a main water sprinkling plate 44 as a water sprinkling plate is inserted through the upper part of the support column 35 in a horizontal state and tightly fitted to the inner circumferential surface of the tank body 16. Further above the water sprinkling plate 44, a secondary water forming plate 45 having a tray-shaped cross section and a smaller diameter than the main water sprinkling plate 44 is inserted through the central portion thereof. The main water sprinkling plate 44 is above the installation position of the upper inspection port 31 and the optical sensor window 32 provided in the upper opening of the tank body 16, and is also located at the penetration position of the water supply pipe 33 and the water supply pipe 7. It is spot welded onto an angle 46 located below the tank body 16 and constructed between the inner peripheral surfaces of the tank body 16. Additionally, above the sub-water forming plate 45, a water inlet 7a of a water pipe 7 branched into two in the heat storage tank 1 is arranged so that water can be injected from above.

On the other hand, an overflow hole 47 is provided in the support column 35 between the main water distribution plate 44 and the sub-water generation plate 45. In addition,
In this embodiment, it is provided at a position 10 cm above the main water plate 44. Further, a communication hole 48 is provided in the support column 35 at a position directly below the main water spray plate 44 .

The ventilation hole 41, overflow hole 47, communication hole 48, and opening 43 are in communication with each other, and the support column 35 functions as an overflow pipe and a pipe for adjusting negative pressure in the tank. There is.

The support column 35 has an inner cylinder 49 formed between the communication hole 48 and the opening 43, and an inner cylinder 49 is formed between the inner peripheral surface of the support column 35 and the inner f.
! 'i49 The gap between the outer peripheral surface and the polyurethane foam 5
It is filled with 0 and has a double structure.

The main sprinkler plate 44 is composed of ten punching boards 51 formed by dividing the planar shape of the heat storage tank 1, as shown in FIG. The joint surface with the peripheral surface is spot welded. In the same figure, 52 is a support through hole through which the support 35 passes, 53 is a temperature detection thermopipe through hole, and 54 is a preliminary through hole. Also,
55 is an inspection hole located below the manhole 36.

Each punching board 51 constituting the main sprinkler plate 44 is provided with a drip hole 56 having a tapered cross-section with a small diameter at the top, as shown in FIG. This drip hole 56
is a hole for uniformly dropping water onto the water surface in the heat storage tank 1, and the water injected from the water pipe 7 onto the main water spray plate 44 via the sub-water generation plate 45 and stagnant water increases the water level from 41 to 10 cm.
The size and number of the holes are calculated to ensure uniform dripping.

Incidentally, in this embodiment, the diameter of the main water spray plate 44 is 35,501 mm.
11. The diameter of the dripping hole 56 is 61, and the water sprinkling amount Q is 2 at maximum.
The dripping holes 56 for uniform dripping when set to 2oo1771in, a small and 440J2/nin are arranged as follows.

That is, the flow rate C is 0.76 (experimental value), the area A of the drip hole 56 is 2.83 x 10'm2, the water level height H on the main sprinkler plate 44 is 0.1 m, and the spray per unit of the drip hole 56 is calculated. The amount of water Ql is calculated from Q1 = CA 7K, and then the number N of drip holes 56 is calculated from N = Q/Ql.The result of the calculation is Q1 = 1.807.(/min, N = 121
There are 7 pieces. Further, the pitch P in the arrangement pattern as shown in FIG. 17 is determined using D=1.15PN'°5, and the pitch P between each drip hole 54 is set to 9oIlll.

In addition, the number of holes that can be calculated as described above is 1217.
each punching board 5 pieces but spot welded
Taking into consideration that leakage may occur from the gap in 1, the actual number is 109.
Eight drip holes 56 are provided.

Further, a sub-water generation plate 45 provided on the main water distribution plate 44
There is a sub drip hole 5 with a tapered cross section for dripping water injected from the water inlet 7a of the water pipe 7 and stagnant onto the main water sprinkling plate 44.
There are 12 numbers 7.

Note that the sub-drop hole 57 is formed to have a larger diameter than the drop hole 56.

Next, the operation of the ice heat storage tank device configured as described above will be explained.

First, water supplied from the water supply pipe 33 and stored in the heat storage tank 1 is sent to the ice making 812 via the water intake pipe 4. The ice R produced by the ice maker 2 is discharged into the lower part of the heat storage tank 1 through the elongated hole 27 of the discharge pipe 5. When the discharged ice R rises 10 degrees from the elongated hole 27, the flow velocity becomes approximately O1, and thereafter it flows upward in a laminar flow due to the difference in specific gravity between the water and the ice R.

Therefore, no turbulence occurs in the lower part of the heat storage tank 1, and the ice R flows upward, so that cold water is always stored below the discharge pipe 5.

From this state, the cold water in the lower part of the heat storage tank 1 is sent to the air conditioner 3 via the supply pipe 6. At this time, since the heat storage tank 1 according to this embodiment has a cylindrical internal shape, the ice R and cold water in the tank flow as a whole, and no part of them stagnates.

Further, when the cold water in the lower part of the heat storage tank 1 is sent out of the tank through the supply pipe 6, the water level in the tank decreases accordingly. Then, the space above the water surface in the tank becomes a negative pressure, but it is communicated with the outside air through the ventilation hole 41 and the communication hole 48, and the negative pressure is adjusted.

When the water whose temperature has become high after passing through the air conditioner 3 is injected onto the sub-water sprinkling plate 45 through the water inlet 7a of the water pipe 7, the water is dripped onto the main water-sprinkling plate 44 from the sub-drip hole 57. . The water accumulated on the main water sprinkling plate 44 is uniformly dripped throughout the tank through the drip holes 56.

Note that when the water remaining on the main sprinkler plate 44 reaches a water level exceeding a predetermined height exceeding the dripping capacity (loCII or higher in this embodiment), overflow water passes through the overflow hole 47 of the support post 35 into the support support 35. It flows out to the cold water side of the lower part of the heat storage tank 1 through the opening 4o.

When all the water on the main water sprinkling plate 44 is dripped, the drip hole 56 is blocked with a film of water due to the surface tension of the remaining water.

However, since the drip hole 56 has a tapered cross section with a small diameter at the top, only the small diameter portion above the drip hole 56 is blocked, and as a result, if it freezes due to cold air coming from below in the tank. Only the upper part of the drip hole 56 in the depth direction is frozen.

When the water level W in the heat storage tank 1 rises to the level immediately below the main water spray plate 44, that is, when the volume of ice R increases too much, an optical sensor (not shown) detects this through the optical sensor window 32. is detected, and the operation of the ice maker 2 is restricted.

In addition, the heat insulation panel 23 protects the heat storage tank 1 from external impact.
The heat insulating member 25 inside the heat insulating panel 23 prevents heat from being released to the outside through the tank body 16.

Further, the pedestal 12 prevents heat from being released to the outside through the bottom plate 15, and is interposed between the bottom plate 15 and the support frame 9 to absorb WI attacks and constitute a counterintelligence structure.

As described above, in this embodiment, since the tank interior is cylindrical in shape, the ice R and cold water do not stagnate in the tank, so that the tank interior capacity can be used 100% effectively. However, by making it cylindrical, if the volume is the same, the installation area can be made smaller by raising the seed head #16, and the hot water temperature distribution in the tank can be divided into upper and lower high-temperature areas and low-temperature areas, so it is easier to install heat storage tank 1. It is possible to reduce space and achieve good thermal efficiency with even temperature distribution.

In addition, the discharge pipe 5 has elongated holes 27 facing upward in the oblong direction at regular intervals on the upper side of the circumferential surface of the vibrator whose tip is closed, so that the water R can be blown out from the tip of the discharge pipe 5 at the mainstream velocity. Since the ice R is discharged upward through the elongated hole 27 with the main flow velocity being suppressed, no turbulence is caused in the lower part of the heat storage tank 1, and the ice R can be caused to flow upward in a laminar flow. As a result, mixing of the high-temperature and low-temperature parts in the tank can be prevented, an appropriate temperature distribution can be maintained, and cold water can always be stored below the discharge pipe 5, so that the efficiency of full use can be increased.

Furthermore, since the water injection structure from the water pipe 7 into the heat storage tank 1 is a dripping structure with a two-stage configuration of the sub-water formation plate 45 and the main water spray plate 44, the entire water surface in the heat storage tank 1 is more stable. As a result, heat can be exchanged uniformly, efficiently, and quickly between the ice R at the top of the tank and the warm water that has been dropped. In addition, the dripping hole 56 has a tapered cross section with a small diameter at the top, and the only part of the dripping hole 56 where the water film breaks down and freezes due to surface tension is the webbed part of the dripping hole 56. It can be melted and dripped uniformly.

In addition, when the amount of water remaining on the main sprinkler plate 44 exceeds the dripping capacity, the overflowing water passes through the overflow hole 47 into the support 35 and flows through the opening 43 at the bottom of the support 35.
Since the water flows into the lower part of the heat storage tank 1 through the main water sprinkling plate 44, an appropriate dripping state can be maintained at all times.

Also, the cold water in the heat storage tank 1 is sent out from the water absorption pipe 4 or the supply pipe 6 to the outside of the tank, and when the water level in the tank decreases, the cold water in the heat storage tank 1 is sent out to the outside of the tank. The space above the water surface inside 1 has negative pressure, but there is a ventilation hole 3 that communicates with the outside air.
8 and the communication hole 44 to adjust the negative pressure inside the tank, it is possible to prevent the tank main body 16 and the like from deforming due to the negative pressure.

Further, the heat insulating panel 23 that covers the outer peripheral surface of the tank body 16 has a heat insulating member 25 fitted into the inner recess 23a, and
A lagging layer 24 made of expanded styrene is applied to the outer peripheral surface of the tank 6, which prevents heat from being released through the tank body 16.The heat insulating member 25 and the lagging layer 24 act as shock absorbers to prevent external shocks. It is possible to prevent damage to the heat storage tank 1 due to

Furthermore, in this embodiment, in the support structure of the heat storage tank 1, a pedestal 12 made of a wooden frame 13 and a heat insulating material 14 is arranged between the bottom plate 15 and the substrate 11, so that heat release through the bottom plate 15 can be prevented. Since the pedestal 12 has a 19 absorption function, it can also function as a counterintelligence structure.

Note that the present invention is not limited to the above-mentioned embodiments, and may be arbitrarily modified without departing from the spirit of the present invention, such as changing the elongated hole as the discharge hole to a plurality of pores provided over the entire circumference. It is also possible.

[Effects] Since the present invention is configured as described above, it has the following unique effects.

In the ice W judan apparatus according to claim 1, a plurality of discharge holes are formed on the circumferential surface of the discharge pipe penetrated into the tank, so that the refrigerant is not blown out from the tip of the discharge pipe at the mainstream speed but from the discharge hole. The main flow velocity is suppressed and discharged, and as a result, no turbulence occurs in the lower part of the tank, so the temperature distribution between the high temperature and low temperature parts in the tank is maintained uniform, and good thermal efficiency can be maintained.

In the ice heat storage tank device of claim 2, the discharge pipe penetrates horizontally into the tank, and a plurality of upwardly directed long holes are formed on the upper side of the circumferential surface of the discharge pipe, so that turbulent flow of the refrigerant is caused through the long holes. By making the water flow upward in a laminar flow, it is possible to maintain good thermal efficiency while maintaining temperature distribution within the tank, and cold water can always be stored below the discharge pipe.

[Brief explanation of drawings]

FIG. 1 is a full-plane view of a heat storage tank according to an embodiment of the present invention, FIG. 2 is an A-Aili plane view of FIG. 1, and FIG. 3 is a schematic diagram of an ice heat storage tank device according to the present invention. Figure 4 is a diagram with the exterior such as a heat insulation panel removed from Figure 1, Figure 5 is the same plan view, Figure 6 is a plan view of the support rod, Figure 7 is a plan view of the pedestal, and Figure 8 is a plan view of the support rod.
The figure is a sectional view of the main part of the support structure of the heat storage tank, FIG. 9 is a front view of the heat insulation panel, FIG. The figure shows the installation position of the fall prevention member 1! ! i Schematic side view, Fig. 14 is a plan view of the same, Fig. 15 is a sectional view of the main parts inside the heat storage tank, Fig. 16 is a plan view of the main parts, Fig. 17 is a plan view of the main water plate, and Fig. 18 is a plan view of the main parts. It is a sectional view of the same part.

Claims (1)

[Claims] 1. An ice maker (2) that generates a refrigerant (R);
2), a discharge pipe (5) penetrates into the heat storage tank (1) from the ice maker (2) and stores the refrigerant (R), An ice heat storage tank device characterized in that a plurality of discharge holes (27) are formed on the circumferential surface of a discharge pipe (5) located in a tank (1). 2. The discharge pipe (5) consists of a pipe that penetrates horizontally into the heat storage tank (1), and its discharge hole (27) is connected to the heat storage tank (1).
2. The ice heat storage tank device according to claim 1, further comprising a plurality of elongated holes formed upwardly on the upper side of the circumferential surface of the pipe in the inside of the pipe.