JPH06125678A - System for multi-stage temperature control of water temperature in many water tanks by taking advantage of heat pump - Google Patents

Abstract

PURPOSE:To secure the fittest water-temperature environmental circumstances for organisms living in a water tank. CONSTITUTION:In this multi-tank system equipped with a heat pump 1, a central control device 4 and plural water tanks 5, 6 and 7, water temperatures in the water tanks 5, 6 and 7 are detected by sensors attached to the tanks. The central control device 4 and the heat pump 1 are worked in the order of the water tank having a larger difference between the detected value (actual temperature) and a set value of the water tank. When the detected value (actual temperature) is approximately equal to the set value of the water tanks 5, 6 and 7, water or warm water in the water tanks 5, 6 and 7 is recycled between the water tank and the central control device 4, and the water tank is controlled with a water-temperature environment fittest to organisms living in the water tanks 5, 6 and 7.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION The present invention relates to an organism that reproduces in an aquarium,
For example, multi-stage temperature control by using a heat pump that can ensure optimum water temperature environment conditions for organisms in each application field such as seafood for culture or experiments, seaweed, seaweed spores for seeding or seeding, other live fish or organisms for breeding It is about the system.

[0002]

2. Description of the Related Art Conventionally, this type of heat pump has advantages such as high energy utilization efficiency, heating and cooling by a single machine, and easy operation and maintenance. Therefore, it is widely used in the air conditioning field.

However, the energy utilization efficiency is high and the operation and maintenance is easy, and attention is paid to the advantages such as the utilization in the fishery field.

For example, it is used for the production of seedlings (fruit spores) of seaweed in the spring and for the land-based seedling collection (seeding of nets) of the seaweed in the spring.

The result of this use is that the water temperature can be easily adjusted and the water quality can be severed, so that the best fruit spores are produced, which is useful for improving the quality of seaweed, or enables seeding on land, thus improving workability. A number of advantages are mentioned, such as the fact that workability is facilitated.

The following technical documents are mentioned as the water temperature adjusting system which is considered to be related to the environmental control of this type of seafood or the present invention.

(1) There is a "shellfish spawning method" in Japanese Patent Publication No. 41288/1992.

[0008] The gist thereof is to provide electrical stimulation to shellfish cultivated in an aquarium to promote spawning of shellfish.

(2) There is a shellfish and plant growing plant of Japanese Patent Publication No. 28301/1990.

[0010] The gist of the invention is to connect a fish and fish culture plant having a circulation path provided with a pH adjusting unit and a dissolved oxygen adjusting unit with a plant plant for cultivating vegetables such as vegetables to provide circulating water for the aquaculture plant. The purpose is to effectively utilize the nutrients such as fish excrement and residual food contained in plant cultivation.

(3) Japanese Patent Publication No. 2-49688 entitled "Fish raising method and apparatus".

[0012] The gist of the invention is to irradiate far-infrared rays to a fishpond for rearing juvenile fish to efficiently heat it, and mainly to promote the growth.

[0013]

However, the conventional water temperature adjusting method using a heat pump has been a single-stage temperature control.

Therefore, it has not been sufficiently utilized as a main reason that a large number of aquariums cannot be centrally managed or cannot be controlled individually and in multiple stages.

Further, the temperature difference between the detected value (actual temperature) and the set value of a large number of water tanks can be easily detected, and then the temperature difference of each water tank can be utilized through the priority control system. It is not possible to secure the efficiency of energy use and the optimum water temperature environment condition for living beings because it is not configured to be managed according to the above.

Further, in the experimental plant, the inability to control the multi-stage temperature of each of the water tanks makes it impossible to effectively utilize the plant facilities.

This is where problems such as the above can be considered.

Further, the above-mentioned prior art can be interpreted in the same manner.

[0019]

Therefore, the present invention is to control each water temperature of a large number of water tanks in multiple stages and individually, and maintain each water tank at a water temperature that is optimal for living things. To efficiently control the temperature of many aquariums and ensure energy utilization efficiency. To achieve the above, the following configuration is adopted.

That is, according to the present invention, a heat pump, a central control device, and a large number of water tanks, and two or a large number (several) provided between each of the water tanks and the heat pump and the central control device. In a multi-tank system equipped with the above piping, the water temperature is detected through a sensor equipped in each water tank, and the difference between this detected value (actual temperature) and the set value (set temperature sensitivity) of each water tank is large. From the water tank, the central control device and the heat pump are operated in sequence, and when the detected value and the set value of each layer are almost the same, the water or hot water in each water tank is replaced by the water tank and the central control device. A system for controlling the water temperature of multiple aquariums using a heat pump, which is characterized by managing the water temperature environment that is optimal for the organisms that circulate among the aquariums and reproduce in each of the aquariums described above. It is.

[0021]

Next, the temperature control of each water tank of the present invention will be described with reference to the flow charts of FIGS.

First, each device such as a heat pump and a central control device is turned on (start in FIG. 3).

As a result, each device such as the heat pump and the central control device operates (ST100), and each device self-diagnoses to determine whether or not the device normally operates.

If normal (ST101), a command is issued to the sensor of each water tank (ST102).

On the other hand, in ST101 and ST102,
In the case of an abnormality (N), an emergency stop is applied and the device is stopped (ST101a, ST102a).

It is to be noted that the emergency stop in ST102 includes a situation in which one of the water tanks is stopped in advance (for example, there are tanks A to C described later, of which, for example, only tank A is stopped. I say the situation.).

Through ST102, the sensor of each water tank operates to measure the temperature of each water tank (measure the water temperature) (ST1
03), it is determined whether each water tank is individually (of course, each water tank may be the same, the same applies to the following) within the set temperature sensitivity (see FIG. 6, the same applies to the following) (ST104).

As described above, the water temperature of each water tank is measured, and the actual temperature thereof is as shown in FIG.
Assuming that the tank is within the set temperature sensitivity, ST105 is reached.

Assuming that the actual temperature of the other water tanks (for example, B tank and C tank) is outside the set temperature sensitivity, ST105
-1.

The individual processes are traced as follows.

Therefore, first in ST105, since the actual temperature (the water temperature of each water tank) is within the set temperature sensitivity (set value = actual temperature, the same applies hereinafter), either heating or cooling is required. However, water or warm water (hereinafter, collectively referred to as water) repeats circulation (hereinafter, referred to as normal circulation operation).

Specifically, in the case of cooling (the same applies in the case of heating, as will be described later), operation of the heat pump is stopped, and the heat pump and the central control device are provided in pipes for communication. For example, a multi-valve inlet / outlet valve (hereinafter, other water tanks are also simply referred to as a multi-valve).
Is closed, and the communication between the heat pump and tank A is closed (indicated as closed on the drawing. The same applies hereinafter).

However, a circulation pump provided in the circulation pipe provided between the central control device and the A tank and between the circulation pipe and the return pipe (hereinafter, in the case of other water tanks, simply In the so-called circulation operation (hereinafter, circulation operation in the case of cooling refers to such a situation), which is operated by a circulation pump), the circulation is performed between the tank A and the circulation pipe ( ST106).

Then, in the process in which the cooling circulation operation is repeated, the process returns to the first ST103, and the sensor constantly measures the water temperature of the tank A, and the actual temperature (detected value, the same applies hereinafter) is the set temperature. If it is within the sensitivity, the normal circulation operation is similarly repeated.

In ST105, in case of heating,
Operation of the heat pump is stopped, and, for example, a multi-valve inlet / outlet valve (hereinafter, simply referred to as a multi-valve in other water tanks) provided in piping connecting the heat pump and the central control device is closed, and the heat pump and the tank A are closed. The communication with and is closed (indicated as closed on the drawing. The same applies below).

However, a circulation pump provided in the circulation pipe provided between the central control device and the A tank and between the circulation pipe and the return pipe (hereinafter, in the case of other water tanks, simply A circulation pump is operated, that is, a so-called circulation operation (hereinafter, a circulation operation in the case of heating refers to such a situation), and the circulation is performed between the tank A and the circulation pipe. (ST116).

Then, in the process in which the heating circulation operation is repeated, the process returns to the first step ST103, and the sensor constantly measures the water temperature of the tank A, and when the actual temperature is within the set temperature sensitivity, , The normal circulation operation is repeated in the same manner.

Then, the actual temperature detected by the sensor again is
If only tank A is within the set temperature sensitivity and the actual temperature of tank B or tank C is outside the set temperature sensitivity, the above-mentioned ST105-
ST206 or ST206, which is the water tank that reaches 1, and has a larger difference between the actual temperature and the set value, which is tank B in this example.
-1.

In this case, the actual temperature detected by the sensor is
When the temperature sensitivity is out of the set temperature range (set value <actual temperature, indicated by <in the drawing, the same applies below) (ST206), cooling operation of the heat pump starts because cooling is required.
In addition, the multi-valve is opened and the circulation pump is stopped, and the piping and the central control device are communicated with the B tank (the same applies to other water tanks, so the same applies hereinafter) (drawing). Displayed on top, open (cold), same below.

As a result, the cooling water flows through the supply pipe,
Circulate supply to tank B (naturally, water outside the set temperature sensitivity of tank B,
The same applies hereafter, including returning to the heat pump. ) Will be
A so-called cooling operation (hereinafter, the cooling operation in the case of cooling means such a situation) is performed (ST207).

In the process of performing the cooling operation, the first S
The process returns to T103, and returns to the initial state in which the water temperature in tank B is detected by the sensor.

On the other hand, when the actual temperature detected by the sensor is out of the set temperature sensitivity (set value> actual temperature, indicated by> in the drawing, the same applies hereafter) in the process of reaching ST206-1. Since heating is required, the heating operation of the heat pump is started, and the multi-valve is opened and the circulation pump is stopped. The piping, the central control unit, and the B tank (the same applies to other water tanks). Can be considered
Hereinafter, the same applies. ) And (communication with
Display with. same as below).

As a result, hot water is supplied to the B pipe via the supply pipe.
The so-called warming operation (hereinafter, the heating operation in the case of heating is performed in this way is circulated and supplied to the tank (including, of course, returning water outside the set temperature sensitivity of the tank B to the heat pump). This situation is performed (ST217).

In the process of performing the heating operation, the first S
The process returns to T103, and returns to the initial state in which the water temperature in tank B is detected by the sensor.

As described above, the initial state ST103
Returning to step B, the actual temperature of the B tank is detected, and when the actual temperature is within the set temperature sensitivity, the B tank, like the A tank, has a cooling or heating circulation operation or a normal circulation. Driving is performed.

That is, the same process as ST105 → ST106 or ST116 of tank A is followed (not shown).

When it is assumed that the actual temperatures of the tanks B and A are within the set temperature sensitivity, the normal circulation operation is repeated in the tanks A and B as described above.

In the normal circulation operation described above, there are tank A and tank B, and when the water temperature of the tank C is measured by a sensor provided in another tank, for example, tank C, the actual temperature is the set temperature. When out of sensitivity is detected, the process goes to ST305-2.

In this case, the actual temperature detected by the sensor is
When the temperature is outside the set temperature sensitivity (set value <actual temperature,) (ST
306) Since the cooling is required, the cooling operation of the heat pump is started, and the multi-valve is opened and the circulation pump is stopped to connect the piping and the central control device to the C tank.

Thereby, the cooling water is supplied through the supply pipe.
Circulation supply to tank C (of course, water outside the set temperature sensitivity of tank C
The same applies hereafter, including returning to the heat pump. ) Will be
A so-called cooling operation is performed (ST307).

In the process of performing the cooling operation, the first S
Returning to T103, the state returns to the initial state in which the water temperature in tank C is detected by the sensor.

On the other hand, when the actual temperature (detected value) detected by the sensor is outside the set temperature sensitivity (set value> actual temperature) in the process of reaching ST306-1, heating is required. Therefore, the heating operation of the heat pump is started, and the multi-valve is opened and the circulation pump is stopped, respectively, and the piping and the central control device and the C tank (the same applies to other water tanks. , And the same.)
Communicate with.

As a result, the warm water is supplied to the C
The so-called heating operation is performed in which the water is circulated and supplied to the tank (including, of course, returning water outside the set temperature sensitivity of the tank C to the heat pump, the same) (ST317).

In the process of performing the heating operation, the first S
Returning to T103, the state returns to the initial state in which the water temperature in tank C is detected by the sensor.

Then, after returning to the first state ST103, the actual temperature of the C tank is detected, and when the actual temperature is within the set temperature sensitivity, the C tank is the above-mentioned A tank or the like. Similarly, a cooling or heating circulation operation or a normal circulation operation is performed.

That is, the same process as ST105 → ST106 or ST116 in the tank A is followed (not shown).

As described above, when the water temperature of each water tank is detected and the processing for each water tank is completed, the temperature measurement of each water tank is returned to the first one.

At the time of this return, the water temperature of each water tank is measured again, and if the difference between the actual temperature and the set value is controlled sequentially from the larger water tank, or if it is within the set temperature sensitivity, the water tank concerned. Only normal circulation operation is repeated.

Further, FIG. 5 shows a situation in which the actual temperature of each water tank is outside the set temperature sensitivity, and this example will be described below.

In this case, in ST103, the water temperature of each water tank is measured. If the actual temperature is outside the set temperature sensitivity, the process goes to ST105-3 and the difference between the actual temperature and the set value is larger. Water tank, in this example, tank A is ST405
Reach.

In this case, the actual temperature detected by the sensor is
When the temperature is outside the set temperature sensitivity (set value <actual temperature) (ST4
06), since cooling is required, the cooling operation is performed as described above (ST407).

In the process of performing the cooling operation, the first S
The process returns to T103, and returns to the initial state in which the water temperature in tank A is detected by the sensor.

On the other hand, when the actual temperature detected by the sensor is outside the set temperature sensitivity (set value> actual temperature) (ST41
6) Since the heating is required, the heating operation is performed as described above (ST417).

In the process of performing the heating operation, the first S
The process returns to T103, and returns to the initial state in which the water temperature in tank A is detected by the sensor.

As described above, the treatment of the tank A having the largest difference is completed, the actual temperature of the tank A is kept within the set temperature sensitivity (not shown), and the tank B or the tank C is not used. The actual temperature of
When the temperature sensitivity is out of the range, ST105-31 or S105
Reach T105-32.

In this case, the water tank having a large difference is subjected to the treatment, and in this example, the tank B having the next largest difference is treated.

Specifically, the actual temperature detected by the sensor is
When the temperature is outside the set temperature sensitivity (set value <actual temperature) (ST5
06), since cooling is required, the cooling operation is performed as described above (ST507).

In the process of performing the cooling operation, the first S
The process returns to T103, and returns to the initial state in which the water temperature in tank B is detected by the sensor.

On the other hand, when the actual temperature detected by the sensor is outside the set temperature sensitivity (set value> actual temperature) (ST51
6) Since heating is required, the heating operation is performed as described above (ST517).

In the process of performing the heating operation, the first S
The process returns to T103, and returns to the initial state in which the water temperature in tank B is detected by the sensor.

As described above, the treatment of the B tank having the next largest difference is completed, the actual temperatures of the B tank and the A tank are maintained within the set temperature sensitivity (not shown), and When the actual temperature of the C tank is outside the set temperature sensitivity, ST105-32 is reached.

In this case, the C tank having the largest difference is the target of the treatment, and the treatment is performed.

Specifically, the actual temperature detected by the sensor is
When the temperature is outside the set temperature sensitivity (set value <actual temperature) (ST6
06), since cooling is required, the cooling operation is performed as described above (ST607).

In the process of performing the cooling operation, the first S
Returning to T103, the state returns to the initial state in which the water temperature in tank C is detected by the sensor.

On the other hand, when the actual temperature detected by the sensor is outside the set temperature sensitivity (set value> actual temperature) (ST61
6) Since heating is required, heating operation is performed as described above (ST617).

In the process of performing the heating operation, the first S
Returning to T103, the state returns to the initial state in which the water temperature in tank C is detected by the sensor.

Through the above operations, the water temperature environment of each water tank is controlled individually or in multiple stages based on the set value of each water tank, and normal operation is continued as in ST102 described above. As long as the operation is performed, the operation is managed by the above-mentioned operations or procedures.

The set value of each aquarium is managed individually, simultaneously, or in a multi-step system, etc., depending on each situation, living thing, or reproductive environment.

The examples shown in FIGS. 3 to 6 are also examples.
As long as the concept of the multi-stage temperature control system is adopted, it is within the scope of the present invention.

[0080]

DESCRIPTION OF THE PREFERRED EMBODIMENTS An example of the multi-stage temperature control system of the present invention will be described below.

A heat pump 1 is usually installed outdoors, and a supply side pipe 2 and a return side pipe 3 from the heat pump 1 are usually a central control unit 4 installed indoors.
It is connected to the.

Reference numerals 5, 6, and 7 denote water tanks. In this example, 5 tank A, 6 tank B, and 7 tank C are illustrated, but the number and form of water tanks, dimensions, etc. Is not limited in principle.

Reference numerals 8, 9, and 10 in the figure denote supply pipes for connecting the A tank 5, B tank 6, and C tank 7, respectively.

Further, the A tank 5, the B tank 6 and the C tank 7 and the central control device 4 are respectively provided with a return pipe 1.
It is connected via 1, 12, and 13.

As a result, the water heated or cooled through the heat pump 1 is supplied to the supply side pipe 2 → the central control device 4 → respectively or individually to the supply pipes 8, 9, 10
It is supplied to the A tank 5 to the C tank 7 via (shown as a whole).

Further, the sensor 1 set in the A tank 5 to the C tank 7
When the actual temperature at 4, 15, 16 is less than or equal to the set value, cold water in each aquarium, water or hot water, or cold water in the aquarium to be corrected, water or hot water is returned to the return pipes 11, 12, 13 (shown as a whole ) →
It is returned to the heat pump 1 via the central control device 4 → return side pipe 3.

In the figure, 17 to 19 are circulation pipes, and the circulation pipe 17 therein is provided between the supply pipe 8 and the return pipe 11 of the A tank 5, and the A tank 5 concerned. The actual temperature of
When it is almost equal to the set value, the water or hot water in the A tank 5 is circulated through the operation of the circulation pump 20 and the opening of the valve 23.

Further, another circulation pipe 18 is provided between the supply pipe 9 and the return pipe 12 of the B tank 6, and when the actual temperature of the B tank 6 is substantially equal to the set value. In addition, the water or hot water in the B tank 6 is circulated through the operation of the circulation pump 21 and the opening of the valve 24.

Still another circulation pipe 19 is provided between the supply pipe 10 and the return pipe 13 of the C tank 7, and when the actual temperature of the C tank 7 is substantially equal to the set value. To
The water or warm water in the C tank 7 is circulated through the operation of the circulation pump 22 and the opening of the valve 25.

The central control unit 4 is equipped with a water temperature control panel 26 equipped with switches, control circuits and the like, multi valves 27 to 29 (corresponding to each water tank) and the like. In addition, reference numeral 30 in the drawing denotes piping.

A is a supply pipe 8 for tanks A-5 to C-7
10 is the water temperature at the outlet, B is the water temperature at approximately the center of tanks A to C and 7 and approximately the middle in the depth direction, and C is the return pipes 11 to 11 of tanks 5 to C. The water temperature of the inlet part of 13 is shown, respectively.

Further, D indicates the room temperature of the factory, the test site, and other buildings, and E indicates the outside air temperature.

Then, in the "Development research of multi-stage water temperature control system" for submitting the temperature measurement at the experimental stage of each of the temperatures A, B, D, E in the "Development research of multi-stage water temperature control system", A is discharge temperature, B is intermediate temperature , D is the room temperature and E is the outside air temperature.

FIG. 6 shows the relationship between the set temperature sensitivity, the actual temperature, and the heating and cooling.
The heating sensitivity and the cooling sensitivity have a certain range, and the heating operation or the cooling operation is controlled within a certain range.

Specifically, the heating operation is performed when the actual temperature has dropped below the heating sensitivity, and this heating operation causes
When the actual temperature reaches the neutral zone of heating sensitivity, the heating operation is stopped.

On the other hand, the cooling operation is performed when the actual temperature rises above the cooling sensitivity, and the cooling operation is stopped when the actual temperature reaches the neutral zone of the cooling sensitivity by this cooling operation. .

[Data] and data for experiments and development studies using the multi-stage temperature control system of the present invention will be submitted as a reference in the property submission form. Thank you for your cooperation. As you can see, it is clear that it is possible to manage the water temperature that can be sufficiently implemented, and it is possible to manage the water temperature almost established for each aquarium.

Further, in the water tank, that is, the tanks A to C 7,
Other auxiliary equipment not shown may be provided depending on the living organisms or the objects such as animals and plants or aquatic organisms, animals and plants.

[0099]

The system (invention) having the above-mentioned configuration has the following effects.

(1) The effect that each water temperature of a large number of aquariums can be controlled in a multi-stage system and / or an individual system and individually or simultaneously, and by this effect, an optimal water temperature environment can be provided for the organisms that reproduce in each aquarium. Can be given.

(2) It is a control system that makes good use of the comparative difference between the actual temperature and the set value, and this enables quick and severe control (management) or efficient control of the water temperature. .

Further improvement in energy utilization efficiency can be expected.

(3) Utilizing the benefits of the heat pump,
For example, the efficiency of energy utilization can be improved, the advantages of maintenance management can be exerted, and the miniaturization of the system can be achieved.

[Brief description of drawings]

FIG. 1 is a plan view of the entire system.

FIG. 2 is a side view of the entire system.

FIG. 3 is a flowchart of a basic system.

FIG. 4 is a flowchart showing an example of the entire system.

FIG. 5 is a flowchart showing another example of the entire system.

FIG. 6 is a schematic diagram illustrating the inside of the set temperature sensitivity.

[Explanation of symbols]

 1 heat pump 2 supply side pipe 3 return side pipe 4 central control unit 5 A tank 6 B tank 7 C tank 8 supply pipe 9 supply pipe 10 supply pipe 11 return pipe 12 return pipe 13 return pipe 14 sensor 15 Sensor 16 Sensor 17 Circulation pipe 18 Circulation pipe 19 Circulation pipe 20 Circulation pump 21 Circulation pump 22 Circulation pump 23 Valve 24 Valve 25 Valve 26 Water temperature control panel 27 Multi-valve 28 Multi-valve 29 Multi-valve 30 Piping

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Tadashi Kamiyanagi Tadashi 1-chome, Akatsukidai, Yokkaichi-shi, Mie 258 (72) Inventor Hiroyuki Hirose 1-7, Nishiyama, Wakabayashi-nishimachi, Toyota-shi, Aichi

Claims (3)

[Claims] 1. A heat pump, a central control device,
In a multi-tank system including a plurality of water tanks, and each of the water tanks and several pipes arranged between the heat pump and the central control device, the water temperature is detected via a sensor equipped in each of the water tanks. , From the water tank having a large difference between the detected value and the set value of each water tank, operate the central control device and the heat pump in order, and manage the water temperature environment optimal for the organisms that reproduce in each water tank, A system that uses a heat pump to control the temperature of water in multiple water tanks. 2. A system for performing multi-stage temperature control of water temperatures of a large number of water tanks by using a heat pump, wherein the set values of the respective water tanks of claim 1 are individually set. 3. The water or hot water in each of the water tanks between the water tank and the circulation pipe, and the supply pipe and A system that multi-stages temperature control using a heat pump for the water temperature in a number of water tanks, which uses a part of the return pipe for circulation.