JPH087290Y2 - Distributor of temperature stratified heat storage tank - Google Patents

Description

[Detailed Description of the Invention] [Industrial field of application] The present invention relates to an improvement in a distributor of a thermal stratification type heat storage tank which uses water as a heat medium and utilizes a density difference between hot water and cold water.

[Conventional technology]

Conventionally, as a thermal stratification type heat storage tank of this type, for example,
The one shown in FIG. 4 is known.

In the figure, reference numeral 1 denotes a temperature stratified heat storage tank having a rectangular parallelepiped shape. In this temperature stratification type heat storage tank 1, a temperature stratification composed of hot water and cold water as a heat medium (water) is formed. And, in the hot water layer 2A and the cold water layer 2B,
Distributors 3 and 4 are arranged so as to be parallel to each other. Each distributor 3, 4 has a plurality of blades radially between two parallel disks 31, 32 and 41, 42.
33 and 43 are provided. Also, the lower disks 32, 42,
Short tube 3 provided with holes 34 and 44 and having flanges 36 and 46
5,45 are connected. One distributor 3
A pipe 5 having a pump 7 in the middle is connected via a flange 51. A pipe 6 having a pump 8 in the middle is connected to the other distributor 4 via a flange 61. Further, the one pipe 5 is connected to the pipe 111 of the air conditioner 11 and the pipe 121 of the cooler 12 via the three-way valve 9. The other pipe 6 is connected to the pipe 112 of the air conditioner 11 and the pipe 122 of the cooler 12 via the three-way valve 10.

When the temperature stratified heat storage tank 1 configured as described above is used for cooling, the three-way valve 9 is operated to connect the pump 7 and the cooler 12 when the air conditioner 11 at night is not used. At the same time, the three-way valve 10 is operated to connect the pump 8 and the cooler 12.

In this state, set the pump 7 to the upper distributor 3
When the hot water in the hot water tank 2A in the temperature stratified heat storage tank 1 is operated to be sucked from the hot water sucked from between the upper and lower discs 31 and 32 of the upper distributor 3, the pipe 5 and the three-way valve 9 are used. And to the cooler 12 via the pipe 121. In this cooler 12, hot water is cooled to cold water. In this case, the electricity bill is charged at night, which is cheaper.

Next, when the pump 8 is operated so as to supply cold water from the lower distributor 4 into the temperature stratified heat storage tank 1, the cold water supplied from the cooler 12 is connected to the pipe 122 and the three-way valve 1.
It is supplied to the distributor 4 below via 0 and the pipe 6.

The cold water supplied to the lower distributor 4 is supplied into the temperature stratified heat storage tank 1 from between the upper and lower discs 41 and 42. Then, the cold water hits the central portion of the disc 41,
As shown by the arrow in the figure and FIG. 5, each wing 33 diffuses in the direction of the arrow to form a cold water layer 2B, and the temperature stratification of the cold water is formed from the lower part to the upper part of the temperature stratification type heat storage tank 1. .

When the temperature stratified heat storage tank 1 is filled with cold water, the pump
Stop 7, 8 and cooler 12.

Next, when cooling is performed using the cold water, the three-way valve 10 is operated to connect the pump 8 and the air conditioner 11, and the three-way valve 9 is operated to operate the pump 7 and the air conditioner 11. And are connected.

In this state, set the pump 8 to the lower distributor 4
When it is operated so as to suck the cold water in the temperature stratification type heat storage tank 1 from the
The cold water sucked from between 1, 42 is supplied to the air conditioner 11 via the pipe 6, the three-way valve 10 and the pipe 112.

The air conditioner 11 performs cooling with cold water, and the cold water is converted into hot water.

Next, when the pump 7 is operated to supply hot water from the upper distributor 3 into the temperature stratified heat storage tank 1, the hot water sucked from the air conditioner 11 passes through the pipe 111, the three-way valve 9 and the pipe 5. Is supplied to the upper distributor 3.

The hot water supplied to the upper distributor 3 is supplied into the temperature stratified heat storage tank 1 from between the two disks 31, 32. The hot water supplied into the temperature stratified heat storage tank 1 from between the wings 34 hits the central portion of the disk 31 and diffuses in the directions shown by the arrows in FIGS. 4 and 5 to form the hot water layer 2A. Then, the temperature stratification of the hot water is formed from the upper part to the lower part of the temperature stratified heat storage tank 1.

[Problems to be solved by the device]

However, the temperature stratified heat storage tank 1 has a rectangular shape, and the distance between the opposing walls 1A, 1B and the distributors 3, 4 and the distance between the other opposing walls 1C, 1D and the distributors 3, 4 are
Since it is not constant, the hot water or cold water supplied from the distributors 3 and 4 hits the facing walls 1C and 1D at a higher speed than the facing wall tanks 1A and 1B, and the hot and cold water in these parts sneak in and the temperature stratification is disturbed. However, there was a problem that the thermal efficiency decreased.

The present invention was made in order to solve such a conventional problem, and its purpose is to reduce thermal efficiency due to disturbance of the temperature stratification of hot water or cold water as a heat medium in the temperature stratification type heat storage layer. It is to provide a distributor of a thermal stratification type heat storage layer capable of reducing the above.

[Means for solving the problem]

The temperature stratification type heat storage layer distributor according to the present invention is arranged so as to be positioned in parallel with each other in the hot water layer and the cold water layer in the heat storage tank forming the temperature stratification consisting of hot water and cold water. Are connected to the air conditioner and the cooler or the heater via the respective pipes, and the hot water or the cold water supplied from the air conditioner and the cooler or the heater are discharged into the heat storage tank, or in the heat storage tank. In a distributor of a temperature stratified heat storage tank that draws in hot or cold water of the above and supplies it to an air conditioner and a cooler or a heater, a plurality of semi-cylindrical straightening plates are placed between two disks arranged in parallel. Are arranged in the same direction.

[Action]

In the present invention, when hot water or cold water is sent from the air conditioner and the cooler or the heater, the hot water or cold water hits the central portion of the outer disk and then follows the semi-cylindrical straightening plate Flow into the thermal stratification type thermal storage layer and then diffuse into the thermal stratification type heat storage layer.

〔Example〕

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

FIG. 1 shows a distributor A according to an embodiment of the present invention, in which reference numeral 20 represents a short pipe.

The short pipe 20 is attached with a flange 21 for connecting to the pipe 5 or 6 in FIG. Also, short tube 20
A disk 22 having a hole 221 in the center is attached to the opposite side of the flange 21.

A plurality of semi-cylindrical rectifying plates 24 are arranged on the circular plate 22 in the same direction at a predetermined interval.

In addition, through the plurality of semi-cylindrical straightening plates 24, the circular plate
A disc 23 having the same diameter as 22 is arranged so as to be parallel to the disc 22.

The thus configured distributor A is used in the temperature stratified heat storage tank 1 in place of the distributors 3 and 4 shown in FIG.

Since the method of using the temperature stratified heat storage tank 1 is the same as the conventional method, the description thereof will be omitted.

When hot water or cold water is sent to the distributor A, it hits the outer disk 23 from the hole 221 and the flow direction is changed laterally there, and the temperature stratified heat storage tank is placed between the two disks 22 and 23. I try to flow into 1. At that time, the hot water or the cold water which is about to flow in the lateral direction is converted by the semi-cylindrical flow straightening plates 24 arranged at predetermined intervals into a flow that rotates clockwise as seen in FIG. As such, it becomes a vortex.

As a result, the swirling hot or cold water hits the opposing walls 1C, 1D of the temperature stratified heat storage tank 1 not as a head-on collision but as an oblique hit, and the impact is soft. After that, facing wall 1C, 1D
Flows horizontally along.

Therefore, after hitting the opposing walls 1C and 1D, the force of diving down is suppressed, and the disturbance of the temperature stratification can be reduced.

Further, the same effects as the facing walls 1C and 1D are also exerted in the facing walls 1A and 1B that are farther than the facing walls 1C and 1D. In this case, since the eddy current has a large distance, the collision angle of the hot water or the cold water becomes smaller than that of the facing walls 1C and 1D.
The collision becomes even softer.

As a result, in this area, the disturbance of the temperature stratification due to diving is further reduced.

In addition, in the four corners 1E, 1F, 1G, and 1H, the stagnation at the site is reduced by the eddy current.

As described above, according to this embodiment, the hot water or the cold water discharged from the distributor A flows into the temperature stratified heat storage tank 1 as a vortex, so that the temperature stratified heat storage tank 1 has a rectangular shape. However, it is possible to reduce the diving phenomenon and reduce the decrease in thermal efficiency.

In the above embodiment, the case where the distributor according to the present invention is used for the rectangular thermal stratification type heat storage tank 1 has been described. However, by chamfering the four corners, smooth flow in the horizontal direction using vortex flow is achieved. It becomes possible to do.

Although the cooling device 12 is used for cooling in FIG. 3, the cooling device 12 may be replaced with a heating device such as a boiler or a heat pump for heating.

[Effect of device]

As described above, the distributor of the thermal stratification type heat storage tank according to the present invention is located in parallel with each other in the hot water layer and the cold water layer in the heat storage tank forming the temperature stratification consisting of hot water and cold water. Are arranged in such a manner that each is connected to an air conditioner and a cooler or a heater via a pipe, and hot water or cold water that is separated from the air conditioner and the cooler or the heater is discharged into the heat storage tank, or In a distributor of a temperature stratification type heat storage tank which sucks hot water or cold water in the heat storage tank and supplies it to an air conditioner and a cooler or a heater, a plurality of semi-cylindrical cylinders are arranged between two discs arranged in parallel. Since the straightening vanes are arranged in the same direction, the flow of hot water or cold water becomes a vortex flow, and the flow after collision with the wall surface of the thermal stratification type thermal storage tank is the horizontal flow along the wall surface. It will be possible to escape. As a result, the diving phenomenon is reduced, whereby the disturbance of the temperature stratification is reduced, and the reduction of the thermal efficiency can be prevented.

[Brief description of drawings]

FIG. 1 is a perspective view showing a distributor of a thermal stratification type heat storage tank according to an embodiment of the present invention. FIG. 2 is an explanatory view showing a flow state of hot water or cold water in the temperature stratification type heat storage tank using the distributor of the temperature stratification type heat storage tank according to one embodiment of the present invention. FIG. 3 is a schematic view showing a conventional temperature stratification type heat storage tank. FIG. 4 is a perspective view showing the action of the distributor. FIG. 5 is a plan view showing the operation of the distributor. [Explanation of symbols for main parts] 1 ... Thermal stratification type heat storage tank 5,6 ...... Piping 11 ...... Air conditioner 12 ...... Cooler 22,23 ...... Disc 24 ...... Semi-cylindrical straightening plate A ...... Distributor.

Claims (1)

[Scope of utility model registration request] 1. A heat storage tank for forming a temperature stratification composed of hot water and cold water, the hot water layer and the cold water layer being arranged so as to be parallel to each other, and each of them is conditioned by a pipe. Machine and a cooling machine or a heating machine, and discharging hot or cold water supplied from the air conditioner and the cooling machine or the heating machine into the heat storage tank,
Or, in a distributor of a temperature stratification type heat storage tank that sucks hot water or cold water in the heat storage tank and supplies it to an air conditioner and a cooler or a heater, between two discs arranged in parallel, a plurality of A distributor for a thermal stratification type heat storage tank, characterized in that semi-cylindrical straightening plates are arranged in the same direction.