JPH11142030A - Ice storage tank - Google Patents

Abstract

PROBLEM TO BE SOLVED: To reduce costs required for the design and manufacture by achieving extensibility in a heat storage capacity to accomplish the standardization of parts. SOLUTION: Unit panel bodies 16, 17, 18 and 19 are so formed that the width and length of panels are set to almost one in integer of any of the width W, the depth D and the height H of the body 1 of a tank and at least a bottom surface and surrounding sides of the tank body 1 are built up with the plurality of unit panel bodies. Moreover, a heat exchanger tube 5 is so formed in a rectangular prism-shaped heat exchanger tube block 11 that the width of the block is almost equal to the panel width W1 of the unit panel body 16 composing the side along the width of the tank body 1 and the depth of the block is almost equal to the panel width W2 of the unit panel body 17 composing the side along the depth of the tank body 1.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an ice storage tank for mainly utilizing ice-melted water from ice making for cooling and air conditioning of food.

[0002]

2. Description of the Related Art Conventionally, as this kind of ice heat storage tank, there is one described in, for example, JP-A-7-174369. 11 and 12 showing this ice heat storage tank, reference numeral 1a denotes a tank main body, 2 denotes a water inlet, 3 denotes a water outlet, 4 denotes water, 5
Is a heat transfer tube, 6 is a heat transfer medium inlet, and 7 is a heat transfer medium outlet. A refrigerator (not shown) for circulating the heat transfer medium through the heat transfer tube 5 is provided at the heat transfer medium inlet 6 and the heat transfer medium outlet 7.
Alternatively, a brine pump (not shown) is connected. In FIG. 12, reference numeral 10 denotes a collecting pipe communicating with the water inlet 2, and the collecting pipe 10 is provided with a plurality of water discharge holes. Reference numeral 2a denotes a water jet port provided at the end of the pipe communicating with the collecting pipe 10.

Next, the operation will be described. During the ice making operation, the water 4 around the heat transfer tube 5 is frozen by flowing the low-temperature heat transfer medium cooled by the refrigerator or the brine pump into the heat transfer tube 5 inside the tank body 1a. Also,
Since this ice heat storage tank is of an external melting type, relatively high-temperature water from an air conditioner or the like flows through the water inlet 2 from the water discharge hole of the collecting pipe 10 and the water jet port 2a into the tank body 1a during the de-icing operation. Discharged. As a result, the ice formed around the heat transfer tube 5 is melted, and the water 4 cooled to a low temperature by the ice melting is sent from the water outlet 3 to an air conditioner or the like. In this manner, the cold stored as ice in the tank body 1a is taken out and used.

The tank body 1a in the form of a rectangular box is integrally molded using, for example, a synthetic resin, or is formed by joining a plurality of plate members constituting each side and bottom surface around the tank body 1a one by one. In the latter case, a maximum of five plate members are used. The heat transfer tube 5 is bent back in a meandering shape so as to have a size that can be accommodated inside the tank body 1a.

[0005]

By the way, in the ice heat storage tank, there are many types of ice storage tanks having different capacities depending on the amount and temperature of cold water (that is, heat storage capacity) required by an air conditioner or a food cooling device. Since the tank main body must be prepared, when the tank main body 1a is formed of a synthetic resin in the above-mentioned conventional ice heat storage tank, it is necessary to manufacture a different molding die for each volume of the tank main body 1a. On the other hand, when the tank body 1a is formed from a plurality of plate members, it is necessary to prepare plate members having different dimensions according to the width, depth, and height of the tank body 1a. In addition, various types of heat transfer tubes have to be prepared according to the volume of the tank main body 1a, each having a different ice-forming ability (that is, heat exchange ability). Conventionally, the structure of the heat storage capacity is poor as described above, so the standardization of the components that make up the ice heat storage tank does not proceed, and the development and manufacture of the ice heat storage tank takes a lot of cost and time. Met.

[0006] In the de-icing operation, a relatively high temperature water flowing from the water inlet 2 into the tank body 1a immediately flows to the water outlet 3 through a short distance path, which may cause a so-called short cycle. In this case, the water did not uniformly exchange heat with all of the ice around the heat transfer tube 5, and the melting rate of the ice varied in some parts. As described above, there is a problem that the low-temperature water of a desired temperature cannot be stably supplied to an air conditioner, a food cooling device, or the like because of poor ice-melting characteristics.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-described problems. By providing expandability to the heat storage capacity, it is possible to standardize parts and reduce costs for design and manufacture. It aims to provide an ice thermal storage tank that can be reduced. Another object of the present invention is to provide an ice heat storage tank that has good thawing characteristics and can stably supply low-temperature water in addition to the above objects.

[0008]

In order to achieve the above object, the present invention comprises a rectangular box-shaped tank main body, and a heat transfer tube bent in a meandering shape and housed inside the tank main body, In an ice heat storage tank in which water is stored in the tank body and ice is generated around the heat transfer tube by flowing a low-temperature heat transfer medium through the heat transfer tube, the panel width and panel length are the width of the tank body. , Forming a unit panel body each set to an approximately integral fraction of either the depth or the height,
At least the bottom surface and the peripheral side surface of the tank main body are formed from the plurality of unit panel bodies, and the heat transfer tubes are formed such that the block width is substantially equal to the panel width of the unit panel body forming the side surface along the width direction of the tank main body. Are formed in a rectangular parallelepiped heat transfer tube block substantially equal to the panel width of the unit panel body constituting the side surface along the depth direction of the tank body.

[0009] In the above structure, the unit panel body which forms one side surface along a direction in which either the width or the depth of the tank body is shorter is located at a corner portion of the side surface facing each other, and A water inlet and a water outlet for communicating the inside and the outside respectively are formed.

In the above structure, the heat transfer tube block is provided with a partition plate for partitioning the heat transfer tube block into a pair of left and right sub-blocks, and the partition plate divides the inside of the tank body into at least a water channel on the water inlet side and a water outlet. It is almost divided into a side waterway.

In the above structure, a fitting member for fitting to an edge of a partition plate is provided on an inner surface of each unit panel body constituting a bottom surface of the tank body and a side surface having a water inlet and a water outlet. It is.

Further, in the above structure, adjacent heat transfer tube blocks are connected by a connecting member.

Further, in the above structure, the inlet side of the heat transfer medium is provided for each sub-block so that the flow direction of water in each water passage in the tank body and the flow direction of the heat transfer medium in the heat transfer tube are opposite. And the position on the exit side.

[0014]

Embodiments of the present invention will be described below with reference to the drawings.

Embodiment 1 of the Invention 1 to 3 show an ice heat storage tank according to Embodiment 1 of the present invention. In the drawings, reference numeral 1 denotes a tank main body, 4 denotes water, and 5 denotes a heat transfer tube. As shown in FIG. 1, a rectangular box-shaped tank body 1 that stores water 4 has a panel width and a panel length that are substantially integers of any of the width W, depth D, or height H of the tank body 1. Each of the unit panels 16, 17, 18, and 19 is set to 1.

More specifically, a pair of side surfaces along the width W direction of the tank main body 1 are constituted by two unit panel bodies 16 each. Each unit panel body 16
Indicates that the panel width W1 is almost half (1/2) of the width W of the tank body 1.
And the panel length L1 is set substantially equal to the height H of the tank body 1 (1/1).

A pair of side surfaces along the direction D in the depth direction of the tank body 1 are each constituted by one unit panel body 17. Each unit panel body 17 has a panel width W
2 is set substantially equal to the depth D of the tank body 1 (1/1), and the panel length L2 is set almost equal to the height H of the tank body 1 (1/1). (Therefore, L1 = L2
It has become. )

Further, the bottom surface of the tank body 1 is constituted by one unit panel body 18, and the top surface of the tank body 1 is constituted by one unit panel body 19. In these unit panel bodies 18 and 19, the panel width W3 is set substantially equal to the depth D of the tank body 1 (1/1), and the panel length L3 is almost equal to the width W of the tank body 1 (1/1). ) Is set.

Each unit panel body 16, 17, 18, 1
9 has a structure in which the edge portions of adjacent unit panel bodies can be detachably joined to each other. When assembling the tank body 1 of FIG. 1, two of the four unit panel bodies 16 are bolted together. And a connecting member 20a such as a nut, and a joint member 20b having an L-shaped cross section is attached to each of the unconnected end faces of the connected unit panel body 16.
The unit panel body 17 is connected with the connector 20a via the connector (see FIGS. 1 and 6), whereby the unit panel body 18 is attached to the lower end surfaces of the unit panel bodies 16 and 17 assembled in a square frame shape, and the upper end surface The unit panel body 19
Each of them is connected by the joint 20a. Of course, it is conceivable to interpose an appropriate sealing material or the like in order to ensure the watertightness of the connection between the unit panel bodies.

Next, the heat transfer tube 5 housed in the tank body 1 will be described. As shown in FIG. 1, the heat transfer tubes 5 are a pair of heat transfer tube blocks 1 arranged in the width W direction of the tank body 1.
1 is formed. The heat transfer tube block 11 will be described with reference to FIG. 2 which is a side view as viewed from the direction of the width W of the tank body 1 and FIG. 3 which is a plan view. 11a and 11b. Each of the sub-blocks 11a and 11b includes four pillars 12 extending in the height H direction of the tank body 1, four beams 14a extending in the depth D direction of the tank body 1, and a width W of the tank body 1.
It has a rectangular parallelepiped frame structure composed of four beams 14b extending in the direction. Three heat transfer tube fixing rods 15 are respectively bridged between the pair of beams 14a, 14a.

Each of the sub-blocks 11a and 11b has 3
It has a heat transfer tube 5 for each book. Each of the heat transfer tubes 5 is bent back in a meandering manner, and upper and lower curved portions forming a U-shape are fixed to the heat transfer tube fixing rods 15 via stoppers 21. These heat transfer tubes 5 are arranged in a staggered manner along the heat transfer tube fixing rods 15, and as shown in FIG. 3, adjacent heat transfer tubes 5 form an equilateral triangle therebetween in plan view. The positional relationship is fixed.

In FIG. 1, 5a is a distributor, 5b is a header, and one distributor 5a and one header 5b are provided for each sub-block 11a, 11b. Each of the heat transfer tubes 5 in each of the sub-blocks 11a and 11b has an end on the inlet side of the heat transfer medium connected to the distributor 5a and an end on the outlet side of the heat transfer medium connected to the header 5b. The distributor 5a and the header 5b of each of the sub-blocks 11a and 11b are connected to a refrigerator (not shown) or a brine pump (not shown) via connection pipes (not shown). As a result, the heat transfer medium from the refrigerator or the brine pump is supplied to the distributor 5a of each of the sub-blocks 11a and 11b through the connection pipe, and is distributed to each of the heat transfer tubes 5 in the sub-block by the distributor 5a. After flowing through the heat pipe 5, it is collected in the header 5b and further returns to the refrigerator or the brine pump via the connection pipe.

The sub-block 11 configured as described above
a and 11b are connected to each other by two beams 13 extending in the depth D direction of the tank main body 1, and constitute a rectangular parallelepiped heat transfer tube block 11 as a whole. Each heat transfer tube block 11 has a block width W4 equal to the width W of the tank body 1.
The panel width W1 of the unit panel body 16 forming the side surface along the direction is substantially equal to the block width D1 and the block depth D4 is
The panel width W2 of the unit panel body 17 constituting the side surface along the depth D direction is substantially the same, and the block height H4 is equal to the panel length L1 of the unit panel bodies 16 and 17.
It is formed to have dimensions substantially equal to L2.

Next, the operation will be described. During the ice making operation, a low-temperature heat transfer medium cooled by the refrigerator or the brine pump is allowed to flow through each heat transfer tube 5,
The water 4 around the heat transfer tube 5 is frozen. Further, the ice heat storage tank of this embodiment is of an internal melting type, and a relatively high-temperature heat transfer medium is circulated through each heat transfer tube 5 during the de-icing operation.
By cooling by heat exchange with surrounding ice, and sending the cooled heat transfer medium to an air conditioner or the like, cold heat stored as ice in the tank body 1a is used.

In the ice heat storage tank of this embodiment, depending on the heat storage capacity required by an air conditioner, a food cooling device, or the like,
Many types of tank bodies 1 having different volumes can be assembled. That is, in the above, each side surface in the width W direction of the tank main body 1 is configured by two unit panel bodies 16 and each side surface in the depth D direction is configured by one unit panel body 17. Are formed by one unit panel body 16, and each side in the depth D direction is formed by three unit panel bodies 17 connected to each other. By changing the number of unit panel bodies 16 and 17 constituting each side surface, the width W and the depth D of the tank body 1 are changed, and the tank body 1 having a desired volume can be obtained.

In this case, for each of the bottom surface and the top surface of the tank body 1, one of the panel width and the panel length is set substantially equal to the width W of the tank body 1 (1/1). The other may be constituted by a single unit panel body which is set to be substantially equal to (1/1) the depth D of the tank body 1, and similar to the side surface constituted by the unit panel bodies 16 and 17, May be configured using a plurality of unit panel bodies that can be connected to the camera.

As described above, the heat transfer tube block 11 has a block width W4 equal to the panel width W1 of the unit panel body 16.
And the block depth D4 is substantially equal to the panel width W2 of the unit panel body 17, so that the width W of the tank body 1 is
In the direction, the same number of heat transfer tube blocks 11 as the number of unit panel bodies 16 constituting each side surface in this direction can be accommodated side by side, and in the depth D direction of the tank body 1, each side surface in this direction is formed. The same number of heat transfer tube blocks 11 as the number of unit panel bodies 17 can be accommodated side by side. For example, FIG.
Each of the side surfaces in the width W direction of the tank main body 1 is constituted by two unit panel bodies 16, and each of the side surfaces in the depth D direction of the tank main body 1 is formed by one unit panel body 17.
In this case, the number of the heat transfer tube blocks 11 arranged in the width W direction of the tank body 1 is two, and the number of the heat transfer tube blocks 11 arranged in the depth D direction of the tank body 1 is one. . After all, if the number of panels constituting each side in the width W direction of the tank body 1 is m, and the number of panels constituting each side in the depth D direction is n, m × n transmissions, which is the product of both the numbers, will be described. The heat tube block 11 is accommodated in the tank body 1, whereby the ice generation capacity (heat exchange capacity) of the entire heat transfer tube 5 becomes substantially proportional to the volume of the tank body 1.

As is clear from the above description, in the ice heat storage tank of this embodiment, the combination of the standardized unit panel body and the standardized heat transfer tube block allows the different type of ice heat storage tank. Capacity can be easily realized. This makes it possible to improve the efficiency of the operation in each stage of designing, testing and evaluating the ice heat storage tank, and to supply the ice heat storage tank at low cost.

Embodiment 2 of the Invention FIG. 4 is a perspective view of an ice heat storage tank according to Embodiment 2 of the present invention, in which 1 is a tank main body, 2 is a water inlet, 3 is a water outlet, 4 is water, 11 is a heat transfer tube block, Reference numeral 16 denotes a unit panel body that forms a side surface in the width direction of the tank body 1, 17 and 17a denote unit panel bodies that form a side surface in the depth direction of the tank body 1, and 18 denotes a tank body 1
, A unit panel body constituting the top surface of the tank body 1, and 20a a connector for connecting the unit panel bodies to each other.

The ice heat storage tank of this embodiment is of an external melting type, and has one side surface along a direction in which either the width or the depth of the tank body 1 is shorter (here, the depth direction) as shown in FIG. A water inlet 2 and a water outlet 3 are provided on a unit panel body 17a. The water inlet 2 and the water outlet 3 are disposed at corners of the side surface thereof facing each other, and communicate the inside and the outside of the tank body 1 respectively.

In the ice heat storage tank as shown in FIG. 4, for example, only one water inlet 2 is provided in one unit panel body 17a constituting a side surface in the depth direction of the tank body 1, and the other unit panel body opposed to this is provided. If the water outlet 3 is provided at 17, when the ice heat storage tank is installed at the place of use, the entrance and exit of the ice are separated on both sides of the tank body 1, so that there is a problem that an extra installation space is required. On the other hand, in the configuration of FIG. 4 in which the water inlets 2 and the water outlets 3 are arranged diagonally on the same surface of one unit panel body 17, the above-described problem does not occur, and The effect of standardizing the unit panel described in the first embodiment is not lost. When the circulation of the water 4 in the tank body 1 is considered, the water inlet 2 and the water outlet 3 are arranged at the opposite corners of the same side surface,
An effect that a short cycle from the water inlet 2 to the water outlet 3 hardly occurs can also be expected.

Embodiment 3 of the Invention FIG. 5 is a side view of a heat transfer tube block according to Embodiment 3 of the present invention.
5 is a heat transfer tube, 11 is a heat transfer tube block, 11a and 11b are sub-blocks, 12 is a column, 13 and 14 are beams, 21 is a stopper, 22 is a partition plate, and 23 is a partition plate fixing device. Also,
FIG. 6 is a cross-sectional plan view of the ice heat storage tank according to the present embodiment using the heat transfer tube block 11 of FIG. In the figure, 1 is a tank body,
2 is a water inlet, 3 is a water outlet, 16 is a unit panel body constituting a side surface in the width direction of the tank body 1, and 17 and 17a are unit panel bodies constituting a side surface of the tank body 1 in the depth direction.
Reference numeral 0a denotes a connector, and reference numeral 20b denotes a joint material disposed between the unit panel body 16 and the unit panel bodies 17, 17a. Other components are the same as those in FIG.

In the ice heat storage tank of this embodiment, the symmetrical sub-blocks 11a and 11 shown in the first embodiment are provided.
b, a partition plate 22 is fixed by a partition plate fixing member 23, and the heat transfer tube block 11 is partitioned by the partition plate 22 into a sub-block 11a side and a sub-blotter 11b side. By arranging such heat transfer tube blocks 11 in the width direction of the tank main body 1 as shown in FIG. 6 by the same number (two in this case) as the number of unit panel bodies 16 in that direction, The inside of the tank body 1 is substantially divided into a water channel A on the water inlet 2 side and a water channel B on the water outlet 3 side. As a result, the water that has entered the water channel A from the water inlet 2 mainly fills the gap between the pair of heat transfer tube blocks 11 and the heat transfer tube block 11 and the unit panel body 1 as indicated by arrows in FIG.
7 and exits to the water channel B side, so that a short cycle from the water inlet 2 to the water outlet 3 is unlikely to occur, the outlet temperature characteristics at the time of thawing are improved, and low-temperature water is removed. The effect that it can supply stably is produced.

Embodiment 4 of the Invention 7 is a cross-sectional plan view of an ice heat storage tank according to Embodiment 4 of the present invention, and FIG. 8 is a side sectional view thereof. In the figure, 1 is a tank main body, 2 is a water inlet, 3 is a water outlet, 16, 17, 17a, 18 and 19 are unit panel bodies, 22 is a partition plate, 24 is a vertical rail (an example of a fitting member), and 25 is a horizontal rail (an example of a fitting member). Note that the heat transfer tube block 11 in this embodiment is the same as that shown in FIGS.
Illustration is omitted except for 2.

In this embodiment, the water inlet 2 and the water outlet 3
A vertical rail 24 is provided on the inner surface of the unit panel body 17a having the above-described shape to fit with the edge of the partition plate 22 facing this surface. This vertical rail 24 is a unit panel body 1
7a, which is located at the center in the panel width direction and extends vertically from the vicinity of the bottom surface of the tank main body 1 constituted by the unit panel body 18 to a height position exceeding the water inlet 2. Further, a horizontal rail 25 is provided on the inner surface of the unit panel body 18 constituting the bottom surface of the tank main body 1 so as to be fitted to the edge of the partition plate 22 facing this surface. The horizontal rail 25 is located at the center of the unit panel body 18 in the panel width direction, and from the vicinity of one side in the depth direction of the tank body 1 configured by the unit panel body 17a, the tank body 1 configured by the unit panel body 17 Extend in the horizontal direction to the vicinity of the other side in the depth direction.

With the above configuration, the gap between the inner surface of the unit panel body 17a and the partition plate 22 and the gap between the inner surface of the unit panel body 18 and the partition plate 22 are closed. A short cycle from the outlet to the water outlet 3 is prevented. Therefore, the third embodiment
The effect that the low-temperature water can be supplied more stably than in the case of FIG.

Embodiment 5 of the Invention FIG. 9 is an exploded perspective view of the ice heat storage tank according to Embodiment 5 of the present invention. In the figure,
1 is a tank body, 2 is a water inlet, 3 is a water outlet, 11 is a heat transfer tube block, 12 is a column, 22 is a partition plate, and 26 is a connecting member, and provided with a partition plate 22 as in the third embodiment. In the pair of heat transfer tube blocks 11, the upper portions of the columns 12 adjacent to each other are connected by a connection member 26. After the adjacent heat transfer tube blocks 11 are connected in advance and integrated as described above, these are inserted into the inside of the tank body 1 from above so that the pair of heat transfer tube blocks 11 can be separately separated from each other. As a result, the assembling work time can be reduced as compared with the case where the storage unit 1 is accommodated.

Embodiment 6 of the Invention FIG. 10 is a perspective view of an ice heat storage tank according to Embodiment 6 of the present invention.
Is a tank body, 2 is a water inlet, 3 is a water outlet, 5 is a heat transfer tube, 5a
Is a distributor, 5b is a header, 11 is a heat transfer tube block, 11
Reference numerals a and 11b denote sub-blocks constituting each heat transfer tube block 11, 16, 17, 17a, 18, and 19 denote unit panel bodies, respectively, and reference numeral 22 denotes a partition that divides each heat transfer tube block 11 into a sub-block 11a and a sub-block 11b. It is a board.

In this embodiment, as in the third embodiment, the inside of the tank body 1 is divided into a water passage A on the water inlet 2 side and a water passage B on the water outlet 3 side by the partition plate 22. In the channel A, the flow direction of the water is mainly from the unit panel body 17a side to the unit panel body 17 side, and in the channel B, the flow direction is mainly the direction from the unit panel body 17 side to the unit panel body 17a side. I'm going.

Then, the flow direction of the ice in the water passages A and B and the flow direction of the heat transfer medium in the heat transfer tube 5 are opposite to each other so that the sub block 11a, 11b has an inlet side of the heat transfer medium. And the position on the exit side are set.
More specifically, in the sub-block 11a of each heat transfer tube block 11 located in the water channel A, each heat transfer tube 5 has an end on the unit panel body 17 side (that is, the end farther from the water inlet 2). While being connected to the container 5a, the end on the unit panel body 17a side (that is, the end closer to the water inlet 2) is connected to the header 5b. On the other hand, in the sub-block 11b of each heat transfer tube block 11 located in the water passage B, the end of each heat transfer tube 5 on the unit panel body 17a side (that is, the end closer to the water outlet 3) is connected to the distributor 5a. And unit panel body 1
The end on the seventh side (that is, farther from the water outlet 3) is connected to the header 5b. Each distributor 5a and header 5b are connected to a refrigerator (not shown) or a brine pump (not shown) via connection pipes (not shown), respectively. The transmission medium is supplied to each distributor 5a through the connection pipe, is distributed to each heat transfer pipe 5 in the sub-block by each distributor 5a, flows through each heat transfer pipe 5, and is collected in the header 5b. Is returned to the refrigerator or the brine pump through the same manner as in the first embodiment.

With the above configuration, in each sub-block 11a, the heat transfer medium in each heat transfer tube 5 meanders up and down along the shape of the heat transfer tube 5, and as a whole a unit panel body It flows from the 17 side toward the unit panel body 17a side. On the other hand, each sub-block 11
In b, the heat transfer medium in each heat transfer tube 5 flows from the unit panel body 17a side toward the unit panel body 17 side as a whole while meandering up and down along the shape of the heat transfer tube 5. Therefore, the flow direction of each heat transfer medium is opposite to the flow direction of water in each of the water passages A and B, and thus, by making the water and the heat transfer medium counter flow, the deicing characteristics are improved. As a result, low-temperature water at a predetermined temperature can be taken out for a long time.

[0042]

As described above, in the ice heat storage tank according to the present invention, the unit panel body in which the panel width and the length are set to approximately 1 / integral of the size of the tank body is used. Since the bottom and peripheral sides are configured, it is possible to assemble various kinds of tank bodies with different volumes by changing the number of unit panel bodies to be used.
Since the heat transfer tube block is formed in a rectangular parallelepiped heat transfer tube block having a block width and a depth substantially equal to the panel width of the corresponding unit panel body, the number of the heat transfer tube blocks is set to a value corresponding to the width or depth of the tank body. By increasing or decreasing the number in accordance with the number of sheets, the ice generating capacity can be made to correspond to the volume of the tank body. And, by using the unit panel body and the heat transfer tube block that are standardized in this way in combination, when the capacity of the ice heat storage tank is to be changed, the efficiency can be improved in each stage of the design, test evaluation, and manufacture, The effect that an ice heat storage tank can be supplied at low cost is produced.

In addition, a water inlet and a water outlet are formed in a unit panel body constituting one side surface along a direction in which either the width or the depth of the tank main body is short, which are located at mutually opposing corners of the side surface. Thus, the installation space for the water pipe can be reduced, and a so-called short cycle from the water inlet to the water outlet can be suppressed.

The heat transfer tube block is provided with a partition plate for partitioning the heat transfer tube block into a pair of left and right sub-blocks. This partition plate allows the inside of the tank body to be at least connected to a water channel on the water inlet side and a water channel on the water outlet side. By substantially dividing the temperature, the thawing characteristics are improved, and the effect of stably supplying low-temperature water is obtained.

Further, in the case where a fitting member for fitting with the edge of the partition plate is provided on the inner surface of each unit panel body constituting the bottom surface of the tank body and the side surface having the water inlet and the water outlet, A short cycle through the gap between the inner surface of the panel body and the partition plate can be prevented, and low-temperature water can be supplied more stably.

In the case where the adjacent heat transfer tube blocks are connected to each other by the connecting member, the operation of housing the heat transfer tube blocks inside the tank body can be facilitated, and the time required for assembling the ice heat storage tank can be reduced.

Further, the flow direction of the ice in each of the water passages in the tank main body and the flow direction of the heat transfer medium in the heat transfer tube are opposite to each other, so that the heat transfer medium at the inlet side and the outlet side of each sub-block are provided. When the position is set, the deicing characteristics are further improved, so that low-temperature water with a more stable temperature can be supplied for a longer time.

[Brief description of the drawings]

FIG. 1 is a perspective view of an ice heat storage tank according to Embodiment 1 of the present invention.

FIG. 2 is a side view of the heat transfer tube block according to Embodiment 1 of the present invention.

FIG. 3 is a plan view of the heat transfer tube block according to Embodiment 1 of the present invention.

FIG. 4 is a perspective view of an ice heat storage tank according to Embodiment 2 of the present invention.

FIG. 5 is a side view of a heat transfer tube block according to Embodiment 3 of the present invention.

FIG. 6 is a cross-sectional plan view of an ice heat storage tank according to Embodiment 3 of the present invention.

FIG. 7 is a cross-sectional plan view of an ice heat storage tank according to Embodiment 4 of the present invention.

FIG. 8 is a side sectional view of an ice heat storage tank according to Embodiment 4 of the present invention.

FIG. 9 is an exploded perspective view of an ice heat storage tank according to Embodiment 5 of the present invention.

FIG. 10 is a perspective view of an ice heat storage tank according to Embodiment 6 of the present invention.

FIG. 11 is a perspective view of a conventional ice heat storage tank.

FIG. 12 is a side sectional view of a conventional ice heat storage tank.

[Explanation of symbols]

1 tank body, 2 water inlet, 3 water outlet, 4 water, 5 heat transfer tube, 11 heat transfer tube block, 11a, 11b sub-block, 16, 17, 17a, 18, 19 unit panel body, 22 partition plate, 24 vertical rail (Fitting member), 25 horizontal rails (fitting member), 26 connecting members, A, B waterways.

Claims (6)

[Claims] 1. A tank body having a rectangular box shape, and a heat transfer tube bent back in a meandering shape and housed inside the tank body, wherein water is stored in the tank body and inside the heat transfer tube. In an ice heat storage tank configured to generate ice around the heat transfer tube by flowing a low-temperature heat transfer medium, a panel width and a panel length may be any one of a width, a depth, and a height of the tank body. Forming unit panel bodies each set to substantially a fraction of an integer, forming at least a bottom surface and peripheral side surfaces of the tank main body from a plurality of the unit panel bodies, and forming the heat transfer tubes with a block width of the tank main body. The rectangular parallelepiped is substantially equal to the panel width of the unit panel body forming the side surface along the width direction, and the block depth is substantially equal to the panel width of the unit panel body forming the side surface along the depth direction of the tank body. Ice thermal storage tank, characterized in that formed in the heat transfer tube block. 2. A unit panel body constituting one side surface along a direction in which either the width or the depth of the tank body is short,
The ice heat storage tank according to claim 1, wherein a water inlet and a water outlet are formed at opposite corners of the side surface and communicate the inside and the outside of the tank body, respectively. 3. A partition plate for partitioning the heat transfer tube block into a pair of left and right sub-blocks is provided on the heat transfer tube block, and the partition plate allows the inside of the tank body to be at least connected to a water passage on the water inlet side and a water passage on the water outlet side. The ice heat storage tank according to claim 2, wherein the ice heat storage tank is substantially divided into: 4. A fitting member fitted to an edge of a partition plate is provided on an inner surface of each unit panel body constituting a bottom surface of a tank body and a side surface having a water inlet and a water outlet. The ice storage tank according to 1. 5. The ice heat storage tank according to claim 1, wherein adjacent heat transfer tube blocks are connected by a connecting member. 6. The heat transfer medium inlet side and outlet side for each sub-block such that the flow direction of water in each water passage in the tank body and the flow direction of the heat transfer medium in the heat transfer tube are opposite to each other. The ice heat storage tank according to any one of the third to fifth aspects, wherein the position is set.