JP2965295B2 - Operation control method of thermal storage tank with multiple water tanks - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention is intended for use as a heat source for air conditioning equipment and the like.
For example, inside buildings, green spaces, sports facilities, underground parking lots
Multiple water tanks, which are installed on
Connected to each other in a heat storage tank composed of
Operation of a heat storage tank that changes the number of tanks according to the heat load of the heat storage tank
It relates to a control method. [Prior art] With the improvement of the living environment, supply of hot water and
Demand for cooling and heating, including the purpose of supply, has increased significantly. Special
In commercial buildings, computers and office automation equipment
Demand for cooling and heating for the heat generated by
Addition is remarkable. Therefore, the peak load of heat load and power consumption
To improve economic efficiency by using midnight power
In order to measure, for example, a commercial building or a large-scale building
In some cases, water storage tanks are used for storing heat underground and in the surroundings of buildings.
Is installed. In addition, targeting multiple buildings
When performing district heating and cooling, especially large capacity storage tanks are installed.
Be killed. Generally, such a water storage tank for heat storage, that is, a heat storage tank,
In order to improve the heat storage efficiency by rectifying the water flow in the tank,
To secure structural and structural strength,
It consists of several water tanks. By the way, such heat storage
For efficient cooling and heating using water in the tank,
The amount of water to be heated or cooled according to fluctuations in cooling and heating demand
It is desirable to adjust appropriately. Under these circumstances,
The water tank that constitutes the heat tank may be one or multiple
Block consisting of a number of water tanks, and open between each block.
Provide a communication path that can be closed, and open and close this communication path appropriately.
Depending on the seasonal fluctuations of cooling and heating demand, each block
Can be used alone or in combination.
Therefore, adjust the amount of hot or cold water used for air conditioning.
I have. The heat storage tank drains water at regular intervals,
It is necessary to perform maintenance and inspection of the
is there. To do this, pass some water tank blocks of the heat storage tank.
While operating in normal condition, other non-operating tank
Drain the water in the tank and perform maintenance and
It is desirable to replace the water. So this
It is necessary to open and close the communication passage between each tank block for the purpose
Becomes Conventionally, a hand for opening and closing the communication passage between the tank blocks
Machines such as sliding gate valves and butterfly valves
A dynamic valve mechanism was used. Any of these valve mechanisms
Also has a valve operating mechanism above the heat storage tank.
Pulling the valve upward or rotating it
Thus, a communication passage is opened. [Problems to be Solved by the Invention] The above-described conventional valve mechanism for opening and closing the communication passage is a heat storage tank.
Large space for installing the valve operating mechanism above the
Required, and frequent maintenance of the valve mechanism and valve operating mechanism
Need to be done. For example, with a sliding gate valve
Need to pull up the valve member to open the valve
Yes, and the space for that must be secured above the heat storage tank.
No. When a butterfly valve is used, heat is stored in the valve shaft.
It is provided above the tank and extends to this valve shaft.
Need to be installed. If the size of the building gets bigger
The amount of heat required for cooling and heating increases, and the size of the heat storage tank increases.
Be a type. Therefore, the open / close valve of the communication passage becomes large,
The mechanism for opening and closing the valve is larger, making it easier for maintenance work.
Space is required. Therefore, large
Space is needed for that. For this reason, the heat storage tank
The leasable area on the floor immediately above is reduced, and machine rooms and parking lots
The available space is crushed, causing economic losses.
I will. Another problem with conventional valve mechanisms is their durability. You
That is, the temperature of the water in the heat storage tank is about 5 to
10 ° C, 50 to 60 ° C during heating.
The valve body, valve seat, seal, etc. are left in water for a long time
Quality of the valve and seal,
Rust, sticking of seals and leakage from valves occur. This
Replacement of seals and maintenance of sliding parts of valves
Must be performed relatively frequently, and this
Always messy and requires a lot of time, effort and money
In some cases, wastewater is wasted. The present invention solves the above-described problem in the communication path of the heat storage tank.
The main purpose is to More specifically, this invention
Ming requires only a small space for opening and closing operations,
No heat storage tank with excellent durability and open / close function
Using a communication device between the tanks, the storage that fluctuates seasonally
Change the number of water tanks connected to each other according to the heat load of the heat tank
To provide an operation control method of a heat storage tank
Things. [Means for Solving the Problems] In order to solve the above problems, the present invention provides
Two water tanks that constitute a heat storage tank by controlling the power
Communication and shutoff between That is, an operation control method of the heat storage tank according to one embodiment of the present invention.
The law defines a storage system consisting of a plurality of water tanks separated by partition walls.
In the heat tank, the water tank is divided into a plurality of groups, and at least one
One group contains a plurality of aquariums communicating with each other,
At least the upper part is closed and the lower part is
A control room opened to the water tank of the group, and one end of the control room
Open to the water tank, the other end rises into the control room,
A passage opening in the upper part of the inside and controlling the pressure in the control chamber
And a pressure control means. Soshi
The level above the other end of the passage according to the heat load of the heat storage tank.
The water level in the control room is raised to
The tanks are communicated with each other or below the other end of the passage.
Water level in the control room is reduced to
In order to cut off the communication between the two tank groups,
The pressure is controlled by pressure control means and connected to each other
Change the number of water tanks according to the heat load of the heat storage tank. According to another aspect of the present invention, there is provided a method comprising:
In a heat storage tank composed of a plurality of water tanks, the water tank is
Number of groups and at least one group
Number of aquariums, with one end between
Open to one group's aquarium, the other end opens to the other group's aquarium
An inverted U-shaped passage, and
A control room formed at an intermediate portion of the inverted U-shaped passage;
Pressure control means for controlling the internal pressure, and a communication device comprising:
Place. Then, according to the heat load of the heat storage tank, the control room
The water level in the passage is raised to a level above the top of
This allows communication between the two aquarium groups, or
The water level in the passage is lowered to a level below the control room,
So that communication between the two aquarium groups is cut off.
The pressure in the passage is controlled by the pressure control means,
Change the number of water tanks connected to the tank according to the heat load of the heat storage tank.
You. In any of the above aspects of the invention, the pressure control
Means or vacuum suction means to pressurization and vacuum suction means
Replace, suction for communication between two adjacent aquariums
And pressurize to cut off communication
be able to. [Operation] In the communication control device according to the first aspect of the present invention, the control room
The end of the passage opening to the top is above the normal water level in the tank.
It is arranged to be placed. Therefore, above the control room
When no vacuum is introduced into the part, two adjacent
Communication with the aquarium is shut off. So a vacuum is placed on top of the control room
When introduced, the water level in the control room rises and this water level is controlled.
When reaching above the open end of the passage in the room, two water
The vessels are communicated with each other via a control room. In the communication control device according to the second aspect of the present invention,
The middle part of the inverted U-shaped passage is located above the normal water level of the water tank
In such a case, in the normal state, an empty space is formed at an intermediate portion of the inverted U-shaped passage.
The air is stagnant and the communication between two adjacent tanks is cut off
Is done. When a vacuum acts on the middle of the inverted U-shaped passage,
As the water level in the passage rises and water enters the passage,
The two tanks are communicated by the passage. Inverted U-shaped passage
Is located below the normal water level in the tank
In the normal state, water enters the inverted U-shaped passage and
The two aquariums are communicated with each other. Middle of passage
When a positive pressure is applied to, the communication is cut off. Pressure control is performed by pressurizing and vacuum suction means.
In such a case, a positive pressure was applied to the control room or the inverted U-shaped passage.
When the communication between two adjacent water tanks is interrupted, a negative pressure is applied.
The two aquariums are communicated when they are removed. This embodiment uses water
When the distance between the normal water level in the tank and the upper wall of the tank is small
It is advantageous. [Explanation of Embodiment] Hereinafter, a communication control device that can be used in the method of the present invention will be described.
An example will be described. FIG. 1 shows two adjacent water tanks 1 constituting a heat storage tank,
10 shows a communication control device 2 installed between 10. Communication system
The control device 2 has a control room 24 formed therein, and an entrance 3 and an exit.
A control tank having a mouth 4 on both the left and right sides, that is, a box-shaped housing
5 The housing 5 is fixed to the bottom of the water tank 1.
It is installed on a support base 6
And a tube extending horizontally toward the outside of the housing 5
7 are integrally formed. At the end of the tube 7 is a connecting franc
A flange 8 is formed, and a connection flange of the communication pipe 11 is
The nozzle 12 is connected. The water tanks 1 and 10 are separated by a partition wall 9 as described above.
The communication pipe 11 is supported by the partition wall 9. The figure shows
Although not shown in detail, the end of the communication pipe is opened in the water tank 10.
To connect the water tank 10 to the control room 24 inside the housing 5
It constitutes a passage. Inside the housing 5, upward from the outlet 4
A rising tube 13 that rises is provided. This tube 13
The tip 14 of the inside of the housing 5
And higher than the upper edge of any of the outlets 4 and the water tanks 1, 10
Normal water level in the water tanks 1 and 10 in normal use
Open into the control room 24 at a position higher than the generated water level WL.
You. The tip 14 of this tube 13 is supported by a plurality of radial supports 15
The riser 13 is supported by the housing 5 and the force of the fluid is
To prevent swaying. A gas passage 16 is attached to the upper wall of the housing 5.
The gas passage 16 is connected to a vacuum pump 17.
You. An electromagnetic valve 18 is provided between the vacuum pump 17 and the gas passage 16.
And between the housing 5 and the solenoid valve 18
, Another gas passage 19 is branched. This gas passage 19
Are open to the atmosphere via an on-off valve 20. House
On the upper wall of the probe 5, the liquid level in the control room 24 is detected.
A liquid level gauge 21 is attached. This liquid level gauge 21
In a capacitive level meter, the electrode 22 is set up inside the housing 5.
It is inserted into the control room 24 outside the rising pipe 13. liquid
The output terminal of the level gauge 21 is connected to the input terminal of the liquid level adjuster 23.
The output terminal of the liquid level controller 23 is connected to the solenoid valve 18.
It is connected. Next, the operation of the above-described communication control device will be described with reference to FIG.
explain. To bring the communication control device into communication, the valve 20 must be turned on.
It is closed and the solenoid valve 18 opens and closes according to the water level in the control room 24.
It is. When the solenoid valve 18 is opened, the vacuum pump 17
A negative pressure is introduced into the control chamber 24 through As a result, Howe
The water level H in the jing 5 is the height of the tip 14 of the riser 13
Two adjacent water tanks 1 and 10 communicate with each other
Let me do. The opening and closing of the solenoid valve 18 maintains this communication.
As described above, the water level H in the control room 24 is detected and controlled. On the other hand, when the communication between the water tanks 1 and 10 is cut off,
The on-off valve 20 of the passage 19 is opened, and the solenoid valve 18 is closed. The result
As a result, atmospheric pressure is introduced into the control room through the gas passage 16 and is controlled.
The water level in Omuro 24 is at the same level as the water level WL in water tanks 1 and 10.
And the communication between the water tanks 1 and 10 is interrupted. In this communication control device, the liquid level gauge 21 and the liquid level adjustment
The liquid level in the control chamber 24 in the communicating state rises
Work so that it is maintained higher than the height of the tip
To use. For this purpose, the electrode 22 of the level gauge 21 is
It is configured to detect the two set reference liquid levels.
If the liquid level drops due to leakage from the gas passage,
The actual liquid level is always between the two reference liquid levels.
The electromagnetic valve 18 is controlled such that In this embodiment, normal water level WL in water tanks 1 and 10 and water
If there is not enough space between the upper walls of tanks 1 and 10
The tip 14 of the riser 13 from the water surface of the tanks 1 and 10
It cannot be protruded sufficiently upward, and the shut-off state is reliable
May not be maintained. Under these conditions
Then, the tip 14 of the riser 13 is set to the normal water level of the water tanks 1 and 10.
Position at almost the same height as WL, and valve 20 is operated by solenoid valve
As shown in FIG. 2, pressure is applied to the solenoid valve 20 as shown in FIG.
The compressor 17a is connected. If you cut off the communication between tanks 1 and 10
In the meantime, the solenoid valve 18 is closed and the solenoid valve 20 is operated to control
Compressed air is introduced into the chamber 24. With this control, the control room
The water level in 24 is lower than the water level WL in the tanks 1 and 10.
The tip 14 of the riser 13 is at the water level of the control room 24.
L is maintained at a position sufficiently higher than
Be held. If the tanks 1 and 10 are to communicate with each other,
The solenoid valve 20 is closed, and the solenoid valve 18 is operated. With this control
The water level H in the control room 24 is higher than the tip 14 of the riser 13
It is held high enough to achieve communication. System
The control of the water levels H and L in the chamber 24 is performed by communicating with the liquid level controller 23.
Switching to cutoff as appropriate and using the liquid level controller 23
Good. 3 to 5 show other examples of the communication control device.
Things. In the communication control device shown in FIG.
Is placed in the water tank 1 and the pipe 7 connected to the water tank 10
Rises to the control room 24 in the jing 5
Constitute. This riser tube 25 is connected to the riser in FIG.
Similar to the pipe 13, a position higher than the normal water level WL in the water tanks 1 and 10.
Extending upwards. Standing on the side wall of the housing 5
Open into the water tank 1 at a position lower than the upper end of the riser 25
A tube 26 is provided. The communication control device of FIG. 4 has the same stand-up as the structure of FIG.
It has a riser 25, but the housing 5 is open at the bottom
It is configured in a hood format. In this example,
The upper end of the pipe 25 is located above the water level in the water tanks 1 and 10 in the control room 24.
It is open to. In the communication control device of FIG. 5, the riser tube 25 of FIG.
Instead of a partition wall extending upward from the bottom of the housing 5
28 are provided. The upper end of this partition wall 28
5, higher than the height of the upper edge of the entrance 3 and the exit 4;
In addition, it is located at a position higher than the normal water level WL in the water tanks 1 and 10. Separation
The wall 28 divides the control room 24 in the housing 5 into two rooms 24a, 24b.
The chambers 24a and 24b are located above the upper end of the partition wall 28.
Communicate with each other. The room 24a is connected to the water tank 10 through the entrance 3.
The chamber 24b is connected to the water tank 1 via the outlet 4 respectively.
Have been. In the embodiments shown in FIGS. 3 to 5,
The upper part of the control room 24 formed in the housing 5 is shown in FIG.
And a vacuum through the valve as in the embodiment of FIG.
Connected to a pump (not shown). Therefore, aquarium
The control of communication and cutoff of 1, 10 is shown in FIG. 1 and FIG.
This is the same as in the embodiment. 1 to 5
In the embodiment, the communication between the water tanks 1 and 10 is cut off,
If water with different temperatures is stored in 1 and 10,
Water with different temperatures is led into the riser and the control room.
And the communication between the riser, housing and water tanks 1 and 10
It is necessary to appropriately arrange the heat insulating material on the wall of the road. In the embodiment of FIGS. 3 to 5, the control room
Control the pressure in the compressor 24 and vacuum port as described above.
It is also possible to use both of the pumps. Of course,
When pressurized air is introduced from the compressor into the cubicle 24, the water tank 1,
When the communication is cut off and a negative pressure is introduced into the control room,
The tanks 1 and 10 are communicated with each other. In the embodiment of FIG. 6, the communication control device is a water tank.
Inverted U-shaped tube arranged so as to straddle the partition wall 9 between 1 and 10
29. The inverted U-tubes 29 are adjacent to each other
A water tank that curves downward inside the water tanks 1 and 10 that are in contact
Open to the bottom of 1,10. The inverted U-tube 29
The position of the middle part 30 is the highest, and
Intermediate passage 31 is located higher than both ends
Have been. Both ends of the inverted U-shaped pipe 29 are lower than the water level WL in the water tanks 1 and 10.
And the intermediate passage 31 is at a position higher than the water level WL.
The gas passage 16 is connected to the intermediate passage 31. Through
Normally, when the solenoid valve 18 is open and the valve 20 of the gas passage 19 is closed
The water level rises to the level indicated by H in FIG.
Water enters the channel 31 to form a water channel, and the water tanks 1 and 10
Be communicated with each other. Open valve 20 and close solenoid valve 18
The inside of the intermediate passage 31 is filled with air, and the adjacent water tank 1,
Communication between 10 is cut off. Pressure regulator 33 in gas passage 16
Is connected. Pressure regulator 33 is also connected to solenoid valve 18
Have been. The pressure regulator 33 has a built-in negative pressure gauge,
The solenoid valve 18 is controlled in accordance with the output signal of the negative pressure gauge.
To introduce the negative pressure from the vacuum pump 17 into the gas passage 16 as needed
Then, the negative pressure in the gas passage 16 is maintained at a predetermined value. This
In the communication control device, if water enters the gas passage 16 as well,
In the meantime, the detection of the communication status is more
It is more preferable to use a pressure gauge as in the embodiment. In addition, this
As in the embodiment, the communication control device is constituted by an inverted U-shaped tube.
And an intermediate passage formed by the inverted U-shaped pipe is provided in the water tank.
In configurations where the liquid level is above the normal water level,
Water-tight work between the U-tube and the partition wall is no longer required
The advantage is obtained. In addition, the inverted U-shaped tube
When the communication control device is configured by the passage, the communication between the water tanks is blocked.
At the time of disconnection, the inside of the inverted U-shaped passage is filled with air,
Insulation between the water tanks is secured by this air,
When water with different temperatures is stored in two aquariums
However, heat loss is slightly suppressed. Therefore, inverted U-shape
Eliminates the need for thermal insulation especially on pipes and other parts
Advantage. In the embodiment shown in FIG.
The control chamber formed by 30 or the intermediate passage 31 is
Arrange at almost the same height as the normal water level WL in 1 and 10, and communicate
The shutoff is performed by pressurizing the intermediate passage 31, and the communication is performed by the intermediate passage 31.
It is also possible to carry out by introducing a negative pressure into the system. FIGS. 7 and 8 show the reverse U in the embodiment of FIG.
An embodiment in which a U-shaped passage is constituted by an upper wall of a water storage tank is shown.
In FIG. 7, two adjacent water tanks 1 and 10 are partition walls.
9, the upper end of the partition wall 9 is a water tank
Has a gap with the upper wall 9a. Water tank on the upper wall 9a
A passage forming wall 50 is provided on one side, and a passage forming wall 51 is provided on the water tank 10 side.
However, each extends downward across the partition wall 9.
Is formed. The passage forming walls 50 and 51 are connected to the partition wall 9.
In addition, an inverted U-shaped passage 52 is formed.
It is higher than the normal water level WL in the water tanks 1 and 10,
The water tank is located at a position lower than the normal water level WL in the water tanks 1 and 10.
Open downward to 1,10. Gas on the upper wall 9a of the water tank
A passage connecting pipe 53 is provided so as to open to the passage 52.
The same gas as in each of the above-described examples is added to the gas passage connecting pipe 53.
The passage 16 is connected. Upper end of partition wall 9 as shown in the example shown
Is higher than the normal water level WL in aquariums 1 and 10,
The gas passage 16 is connected to a vacuum pump via an electromagnetic valve.
When the solenoid valve is opened and a negative pressure is introduced into the passage 52, the passage
Water rises in 52, and water tanks 1 and 10 are communicated with each other.
You. The upper end of the partition wall 9 is lower than the normal water level WL of the water tanks 1 and 10.
In the case of a so-called dive weir, the gas passage 16 is a solenoid valve
Compressed air is introduced into the passage 52
Thus, communication between the water tanks 1 and 10 is interrupted. gas
The electrode 22 of the liquid level gauge 21 is inserted into the passage 52 through the passage connecting pipe 53.
The liquid level gauge 21 detects the water level in the passage 52.
You. Figures 9 and 10 show the inverted U-shaped passage in the upper wall of the reservoir.
1 shows an example in which the device can be removably mounted on a vehicle.
In the figure, an upper wall 9a located above the partition wall 9 has:
An opening 9b is formed, and a lid is formed on the upper wall 9a so as to close the opening 9b.
60 is installed. An inverted U-shaped passage 62 is provided on the lower surface of the lid 60.
A passage forming member 61 having
When the lid 61 is in a position to close the opening 9b, the component 61
It is arranged so as to straddle the wall 9. In this position, the inverted U
In the shape passage 62, the middle portion is located above the water level in the water tanks 1 and 10.
With both ends below the water level in water tanks 1 and 10
Open downward. 7 and 8 in the embodiment of FIG.
Similarly, the gas passage connection connected to the inverted U-shaped passage 62
A tube 63 is provided. In this example, this connection pipe 63 is
It is formed integrally with the passage forming member 61. Gas in connection pipe 63
The passage 16 is connected, and also penetrates the connection pipe 63 so that the level gauge 21
Electrode 22 is inserted into passage 62. FIG. 11 shows a modification of the structure of FIG.
In the figure, an opening is formed in an inverted U-shaped passage 52 in the upper wall 9a of the water storage tank.
The connection passage 70 is attached so that
Is connected to a small-diameter pumping reservoir 71. The upper part of the pumping reservoir 71 is described above.
Connected to the same gas passage 16 as in each of the embodiments.
The electrode 22 of the liquid level gauge 21 is inserted into the pumping reservoir 71.
The operation of the liquid level gauge 21 is the same as in the above-described embodiment.
You. In this example, when the water tanks 1 and 10 are communicated with each other,
Is raised to the position of the pumping reservoir 71. In this case, fried
Since the water reservoir 71 has a relatively small diameter, a relatively insensitive
Fluctuations in liquid level can be detected sensitively even with an alarm
become. As in this embodiment, adjacent water tanks 1 and 10 are connected to each other.
When you let it pass, the upper wall of the communication passage will be filled with water
In such a case, the flow path area during communication
Is kept constant at all times, and the flow path resistance of the communication path remains unchanged.
Therefore, a stable water flow can be obtained and the surrounding water
The advantage is that water level fluctuations in the tank can be prevented.
You. In addition, the water surface in the pumping reservoir 71 can be seen from outside.
Can visually confirm the presence or absence of communication.
And convenient. FIG. 12 shows an example in which the principle of FIG. 11 is applied to the structure of FIG.
FIG. 4 shows an embodiment, and a portion corresponding to the structure of FIG.
The same reference numerals as in FIG. 4 denote the same parts, and a description thereof will be omitted. In this example
In this case, a pumping pipe 75 extending upward is formed in the housing 5.
The gas passage 16 is connected to the water pump 75. further,
The electrode 22 of the liquid level gauge 21 is inserted into the water pump 75. Aquarium 1,
When communicating 10 the water rises to the pumping line 75
It is. An advantage obtained by this configuration is that the embodiment shown in FIG.
Is the same as described above. Also in the embodiment of FIGS. 7 to 12, the communication is interrupted.
Is performed by applying pressure and communication is performed by introducing negative pressure.
This is also possible as in the above-described embodiment. In addition,
As shown in FIG. 7 to FIG.
The configuration in which the spout is on the floor immediately above the heat storage tank is the liquid level
There is an advantage that maintenance management of a total of 21 is convenient. As described above, the embodiment of the present invention is applied to the connection between two adjacent water tanks.
The connection is above the normal water level in the tanks,
The connection is broken and a negative pressure is applied to this connection.
To raise the liquid level to the connection part, and connect both water tanks.
Although the configuration has been described, the present invention is limited to such a configuration.
It is not specified. Below, between two adjacent tanks
In the embodiment where the connection part is located below the normal water level of the water tank
Next, the present invention will be described. 13 to 16 are FIGS. 2 to 5 respectively.
FIG. 13 shows an example of a riser tube.
13, the riser 25 in the example of FIG. 14 and FIG. 15,
In the example of FIG. 16, the upper end of the partition wall 28 is
The water tanks 1 and 10 are in the normal state
Communicate with each other. As schematically shown in FIG. 13, the control room
The gas passage 16 connected to the compressor 24 is connected via a solenoid valve 18 to the compressor.
Connected to 80. Open the solenoid valve 18 and press the compressor 80
When the compressed air is introduced into the control room 24, the liquid level in the control room rises.
As shown by L, it is lower than the upper end of the riser 13
The communication between the water tanks 1 and 10 is interrupted. FIG. 14 to FIG.
Although not shown in FIG. 16, similar structures are used in these embodiments.
Have FIG. 17 is an embodiment corresponding to FIG.
The difference from the example is that, in this example, the inverted U-shaped pipe 29 is
It is located below the normal water level WL. In this example,
The gas passage 16 connected to the passage 30 is evacuated via the solenoid valve 18.
It is connected to the gas compressor 80. FIG. 18 is a plan view showing an example of a heat storage tank to which the present invention is applied.
FIG. The heat storage tank 101 is a concrete
Are divided into a number of aquariums 102,
A plurality of tanks 102 are gathered, and each of the blocks A,
B and C are configured. In each block, water tank 102
Are connected to each other by a communication pipe 104. Water in each block
Pumping water from a water tank into one of the tanks 102 or
A pipe 105 for return is provided. In addition,
The communication control device 106 of the present invention is provided between the lock tanks.
Can be Some aquariums 102 have a
A current plate 107 is provided. Figures 19 to 23 show the operation status of the heat storage tank according to the season.
And the water tanks 102 of blocks A, B, and C
Shown in expanded state. Figure 19 shows the state of summer,
The water tanks 102 of all blocks A, B and C are used for cooling.
It is. Therefore, the communication control device 106 between each block is
Communication is established. Water goes to one aquarium 102 of block A
Is returned and passes through each water tank 102 of block A in order.
Enter the water tank of block B, and sequentially move the water tank 102 of block B.
After passing through the block C, the water tank 10 of the block C
After sequentially passing through No. 2, pump from the water tank 102 of the block C
Will be issued. As shown by 110, the water level in each tank 102
There is a difference corresponding to the communication resistance between the water tanks 102. Fig. 20 shows the driving condition around May or September.
Cold water for cooling is stored in the water tank 102 of B and B.
In this state, the communication control device 106 between the blocks A and B
The communication control unit 106 is set in the communication state, and is connected between the blocks B and C.
Are turned off. FIG. 21 and FIG. 22
Operating conditions around April or October and around March or November
In FIG. 21, the communication control device 106 between the blocks A and B is shown.
Is shut off, and only the water tank 102 of block A is cooled.
In FIG. 22, the communication control device 10 between each block is used.
6 are all shut off, and the water tank 102 of block A is cooled.
Then, the water tank 102 of the block B is used for heating. Fig. 23
Indicates the operation status in winter, and the link between blocks A and B
The communication control device 106 is in the cutoff state, and the communication between the blocks B and C is performed.
The control device 106 is set in a communication state, and the water tank 102 of the block A is
Water tanks 102 of blocks B and C are used for cooling, respectively.
Used. In the state shown in Figs. 20 to 22,
Drain the water from the tank of the unused block, and
It is also possible to perform a maintenance check. In addition, of block A
To drain the water, replace the condition shown in Fig. 21 with the same
Cut off all communication control devices 106 between blocks even in the season
And put cold water for cooling in the water tank 102 of block B.
Store the water and drain the water from the tank in Block A
No. FIG. 24 shows a state in which the water tank of block A is drained.
You. For example, the water tank of block A in the operating state of FIG.
A water tank for draining water, such as between
Use the communication control device of the present invention between the
In the case of the embodiment shown in FIG. 1 to FIG.
In normal operation, it is shut off and the communication is established by the action of negative pressure.
It is particularly advantageous to use equipment of the type
You. To explain this point in more detail, for example, FIG.
When the configuration of the embodiment of FIG. 13 is used for the communication device 106 shown in FIG.
Assuming a meeting, the water level in the tank 1 of the block A is open
When the control room 24 is lowered to a position lower than the upper edge of
Communicating with the air in the tank 1, the pressure in the control room 24
Control is lost. In this state, the water flow in the control room 24
Blockage becomes impossible, and water in the tank B of the block B is
Through the water tank 1. This outflow is due to the water level in aquarium 10.
Until it drops to the level at the top of riser 13.
And As a result, drain the water from the tank of block A
The water level of the water tank in block B
You. This is because the water in the tank of block B is wasted
Means that the water available in block B
It also means that the heat capacity decreases due to the decrease in volume,
The economic loss is large. Furthermore, in the heat storage tank,
It is always necessary to secure heat storage capacity and maintain stable operation.
Due to the necessity, a means for maintaining the water level in the tank was provided.
However, operation was performed with the water level in the tank of Block B lowered.
If you have to keep rolling, keep low water level separately
Means, and the control of the heat storage tank becomes complicated.
Generate profit. In contrast, in the embodiment of FIG.
The upper end is located above the normal water level in tanks 1 and 10.
In the shut-off state where the inside of the control room 24 becomes the atmospheric pressure,
The water level in one of the tanks in one of the blocks
Does not affect water level. This is shown in FIGS.
The same is true for the other types of embodiments shown in FIG.
The economic losses and control disadvantages mentioned above.
I do not. For example, in the use state of FIG.
The most downstream water tank 102 and the most upstream water tank 102 of block B
Large water level difference occurs when communication is interrupted
Will be. In this way, between the adjacent water tanks in a closed state
The communication control device of the present invention is used in places where a large water level difference occurs.
1 to 12 when using
As in the example, it is normally shut off and communicates by the action of negative pressure
The use of equipment of the type in which the condition is achieved is particularly
Be profitable. To explain this point in more detail with an example,
For example, as in the embodiment shown in FIG.
In a device of the type in which a blocking state is achieved by the action of pressure
In the control room only to compensate for gas leakage when communication is interrupted.
Air is blown into the control chamber appropriately to maintain the liquid level in the control room within a certain range.
It is desirable that the liquid level in the control room
Moving is a problem. In the embodiment shown in FIG.
While shutting down between 10, a difference occurs between the water surfaces of both aquariums.
The water level in 10 becomes higher than the water level in water tank 1 by h.
If so, inside the control room 24, outside the riser 13
Water level rises, water level inside riser 13 falls
I do. As a result, the water level inside and outside the riser 13 is h
Make a difference. In the embodiment of FIG. 13, the control of the pressure in the control
24 by detecting the water level outside the riser 13
The water outside the riser 13
The rise in the liquid level is measured and the pressure in the control room 24 is
It is raised as much as the rank rises. As a result,
The water level in the rising pipe 13 further decreases, and air enters the water tank 1.
It will blow through. To avoid such a stairwell
To do this, complicated controls must be performed,
is there. On the other hand, in the embodiment shown in FIG.
The chamber communicates with the atmosphere and the pressure in the control chamber must be adjusted.
Since there is no need, position the upper end of the riser 13 in the water tank 10
By setting the height to allow for the rise of the water level,
Such problems can be easily avoided. Also, the negative pressure
Implementation of a form that achieves communication by acting
In the example, as in the embodiment of FIG. 11 and FIG.
Or the provision of a pumping pipe facilitates liquid level detection.
And the communication area can be prevented from changing.
Is obtained. Thus, depending on the use of the communication control device of the present invention,
Means that the negative pressure communication type device is
It will have very good results. [Effect] In the method of the present invention, the communication device is movable in the liquid.
Since there is no need to place parts, breakdowns, damage, and
There is almost no wear. Therefore, the conventional thermal storage layer
The burden of maintenance management has been greatly reduced compared to
It is. Also, by extending the gas passage appropriately,
Remote operation becomes possible. In addition, on the floor immediately above the heat storage tank
Arrange mechanisms for valve opening and closing, and
There is no need to secure a pace,
Effective use of space becomes possible.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a cross-sectional view of a communication control device between water tanks in a heat storage tank showing one embodiment of the present invention, and FIG. 2 is a view for explaining the operation of the device of FIG. The schematic diagrams, FIGS. 3 to 6,
Schematic diagram similar to FIG. 2 showing another embodiment of the present invention, FIG.
FIG. 10 is a sectional view showing still another embodiment of the present invention, FIG. 8 is a sectional view taken along the line VIII-VIII of FIG.
FIG. 10 is a sectional view showing still another embodiment of the present invention, FIG. 10 is a sectional view taken along line XX of FIG. 9, and FIG. 11 is a schematic sectional view showing a modification of the embodiment of FIG. 12, FIG. 12 is a sectional view showing a modification of the example of FIG. 4, and FIGS. 13 to 17 are schematic sectional views of other embodiments corresponding to FIGS. 2 to 6, respectively.
FIG. 18 is a plan view showing an example of a heat storage tank to which the present invention is applied, and FIGS. 19 to 24 are schematic views showing seasonal use of the heat storage tank of FIG. 1, 10 ... water tank, 2 ... communication control device, 5 ... housing, 13, 25 ... riser, 21 ... liquid level gauge, 24 ... control room, 16, 19 ... gas passage.

Claims (1)

(57) [Claims] In a heat storage tank composed of a plurality of water tanks partitioned by partition walls, the water tank is divided into a plurality of groups, and when each group is formed of a plurality of water tanks, the water tanks in the group are always maintained in communication with each other. Between the groups, at least an upper part is closed and a lower part is opened in the water tank of one group, and a lower part is opened in the water tank of the other group. A communication device comprising: a passage that opens; and a pressure control unit that controls a pressure in the control chamber is disposed, and a water level in the control chamber reaches a level above the other end of the passage according to a heat load of a heat storage tank. Is raised, thereby causing communication between the two aquarium groups, or lowering the water level in the control chamber to a level below the other end of the passage, thereby disconnecting communication between the two aquarium groups. In addition, A method for controlling the operation of a heat storage tank, characterized in that the pressure in the room is controlled by the pressure control means, and the number of water tanks connected to each other is changed according to the heat load of the heat storage tank. 2. The method according to claim 1, wherein the portion of the passage of the communication device in the control room includes an outer wall of the control room and partition means provided in the control room. Features method. 3. The method according to claim 1 or 2, wherein the other end of the passage of the communication device is located above a normal water level, and the pressure control means is connected to the control chamber via a valve means. A method characterized by gas suction means connected to the upper part. 4. The method according to claim 1 or 2, wherein the other end of the passage of the communication device is located below a normal water level, and the pressure control means is connected to the control chamber via a valve means. A method characterized by gas pressurization means connected to the top. 5. The method according to any one of claims (1) to (4), wherein a pipe having one end opened to the upper part of the control room and the other end closed penetrates the heat storage tank ceiling above the control room. Wherein the liquid level detection means is inserted into the control room via the tube or via the tube. 6. The method according to claim 1 or 2, wherein the other end of the passage of the communication device is opened at an upper portion of the control chamber at a level near a normal water level of the water tank, and the pressure control is performed. The means has a function of suction and pressurization. 7. In a heat storage tank composed of a plurality of water tanks partitioned by partition walls, the water tank is divided into a plurality of groups, and when each group is formed of a plurality of water tanks, the water tanks in the group are always maintained in communication with each other. Between the groups, an inverted U-shaped passage having one end opening to the water tank of one group and the other end opening to the water tank of the other group, and the reverse at a position higher than the one end and the other end of the passage. A communication device comprising: a control chamber formed in an intermediate portion of a U-shaped passage; and a pressure control means for controlling a pressure in the control chamber, wherein an upper portion of the control chamber is provided in accordance with a heat load of a heat storage tank. The water level in the passage is raised to a higher level, whereby
The pressure in the passages is such that communication between the two tank groups is reduced or the water level in the passage is lowered to a level below the control chamber, thereby cutting off the communication between the two tank groups. An operation control method for a heat storage tank, wherein the number of water tanks connected to each other is changed according to the heat load of the heat storage tank by controlling the pressure control means. 8. The method according to claim 7, wherein the passage of the communication device is arranged so that an intermediate portion thereof is above a normal water level of the water tank and both ends thereof are below the water level, and the pressure is low. The method of claim 1 wherein the control means comprises gas suction means connected to the upper portion of the inverted U-shaped passage via valve means. 9. 7. The method according to claim 7, wherein said passage of said communication device is disposed so as to be entirely below a normal water level of said water tank, and said pressure adjusting means is located above said inverted U-shaped passage. A gas pressure means connected via valve means. 10. A method according to claim 7, wherein said passage of said communication device is provided in a lid removably mounted on a ceiling of said heat storage tank. 11. The method according to claim 7, wherein an intermediate portion of said inverted U-shaped passage of said communication device is placed at a level near a normal water level of said water tank, and said pressure control means comprises suction and pressurization. Method having the function of: