JPH0775498B2 - A system that controls the water temperature of multiple aquariums using a heat pump. - Google Patents

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 using a heat pump that can ensure optimal 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, the operation and maintenance are easy, and the like, and attention is paid to such advantages, and they are being used in the marine product field. For example, it is used for the production of seedlings (fruit spores) of seaweed in the spring season and for the land-based seedling collection (seeding of nets) of the seaweed in the spring season. The result of this use is that the water temperature can be adjusted easily and it can be severe, so that the best fruit spores are produced, which helps improve the quality of seaweed, or enables seeding on land, improving workability. A number of advantages are mentioned, such as the facilitation of sex being achieved.

The following technical documents are available as the water temperature adjusting system that is considered to be related to the environmental control of this type of seafood or the present invention. (1) Japanese Patent Publication 1-4128
There is No. 8 "Shell spawning method". The purpose of this study is to stimulate shellfish to be spawned by applying electrical stimulation to shellfish cultivated in an aquarium. (2) Japanese Patent Publication No. 2830
There is No. 1 "Growing plant for shellfish and plants". The gist is to connect a fish culture plant having a circulation path including a pH adjusting unit and a dissolved oxygen adjusting unit with a plant plant for cultivating plants such as vegetables, and to include fish contained in the circulating water of the culture plant. The purpose is to effectively utilize the nutrients such as excrement and leftover food for plant cultivation. (3) Japanese Patent Fair 2-496
There is No. 88 "Fish raising method and its equipment". The gist is to irradiate far-infrared rays to a fishpond for rearing fry and heat it efficiently, and its purpose is mainly to promote growth. Therefore, the temperature difference targeted by the present invention is
Priority control system that manages the water temperature sequentially from a large tank
A relatively large-scale aquarium that incorporates a
The configuration does not correspond to the installation situation.

[0004]

However, the conventional water temperature adjusting method using a heat pump has been a single-stage temperature control. For this reason, many water tanks are still underutilized, mainly because they cannot be centrally managed or cannot be controlled individually and in multiple stages.

On the other hand, the conventional control system simply detects the temperature difference between the detected value (actual temperature) and the set value of a large number of water tanks, and then uses this temperature difference to measure the temperature of each water tank. Since it is not configured to be managed via the priority control system, it is impossible to improve the efficiency of energy use and ensure the optimum water temperature environment condition for living things. Further, in the experimental plant, the inability to control the multi-stage temperature of each water tank cannot effectively utilize the plant facility. It is a place where issues such as Further, the above-mentioned conventional technique is also interpreted in the same manner. Further, as described above, the object of the present invention is to
Priority system that manages the water temperature sequentially from the water tank with a large temperature difference
A relatively large-scale aquarium that incorporates a control system
The structure is far from the configuration corresponding to the free installation situation of
ing.

[0006]

Therefore, according to the present invention, heating is performed.
Sensitivity and cooling sensitivity with a certain range of temperature
Heating or cooling at a temperature within 10 degrees, or the neutral zone of the set value
Stop heating or cooling within the range of
And energy saving and efficient temperature control of many aquariums.
Energy efficiency through temperature control and water temperature control
And control the water temperature severely to control the water temperature.
Achieve stabilization, etc., or detect water temperature in each tank
From the water tank with a large difference between the set value and the set value, the water temperature is managed sequentially,
More severe water temperature control, moreover temperature
Priority control system that sequentially manages water temperature from water tanks with large differences
A relatively large-scale aquarium incorporating a system
The following configurations will be adopted in order to respond to various installation conditions .

That is, the water temperature of many water tanks of the present invention is
Systems that multistage temperature control by using a pump, the heat pump, the central control unit, and a number of the tank, as well as multi provided with several pipes disposed between said central control unit and the respective water tank and said heat pump In the tank system, the
For the detection value obtained by detecting the water temperature and this detection value
The heating and cooling sensitivities have a certain range.
Heating or cooling at a temperature within the constant temperature sensitivity, or the set value
While stopping heating or cooling within the range of the neutral zone,
In any of the above cases, the difference between the detected value and the set value is large.
From the water tank, the central control device and the heat
Operating the Toponpu by warming or cooling, the ideal for organisms reproductive each aquarium, the water temperature of the multi-tank aquarium, characterized in that managing the temperature environment in a system for multi-stage temperature control using a heat pump is there.

[0008]

Next, the temperature control of each water tank of the present invention will be described with reference to the flow charts of FIGS. First,
Turn on each device such as the heat pump and central controller (start in Fig. 3). As a result, each device such as the heat pump and the central control unit operates (ST1
00), each device self-diagnoses and determines whether or not it operates normally. If this judgment is normal (such as Y
Ku), (ST 101), sensor commands for the water tank, issued (ST 102). On the other hand, if it is abnormal (such as N
), Like ST101 and ST102 above
Emergency stop is applied and the device is stopped (ST101
a, ST102a). The emergency stop of 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 mean the situation.). In addition, the ST
Through 102, the sensor of each water tank operates, the temperature of each water tank is measured (water temperature measurement) (ST103), and each water tank is individually (of course, each water tank can be the same, the same applies below) within the set temperature sensitivity (Fig. No. 6 (the same applies hereinafter) is determined (ST104). As described above, the water temperature of each water tank is measured, and assuming that the actual temperature of some water tanks (for example, tank A) is within the set temperature sensitivity as shown in FIG. 4, ST1
05. Assuming that the actual temperature of the other water tanks (for example, the B tank and the C tank) is outside the set temperature sensitivity, ST105
-1. The individual process is followed.

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 performed. There is no need, and water or warm water (hereinafter, collectively referred to as water) is repeatedly circulated (hereinafter, referred to as normal circulation operation). Specifically, in the case of cooling (the same applies in the case of heating, as described later), the operation of the heat pump is stopped, and the pipes that connect the heat pump and the central control device are arranged, for example, a multi-valve. The inlet / outlet valve (hereinafter, simply referred to as a multi-valve for other water tanks) is closed, and the communication between the heat pump and the tank A is closed (indicated as closed on the drawing. The same applies to the following). 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, also in the case of other water tanks, simply referred to as the circulation pump). In the so-called circulation operation (hereinafter, the circulation operation in the case of cooling means such a situation),
Distribution is performed between the tank A and the circulation pipe (ST10
6).

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. Further, in ST105, in the case of heating, the operation of the heat pump is stopped, and the pipes that connect the heat pump and the central control device are arranged. Is closed), and the communication between the heat pump and the A tank is closed (indicated as closed on the drawing. The same applies hereinafter). However, a circulation pump installed 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 the circulation pump. In the so-called circulation operation (hereinafter, the circulation operation in the case of heating means such a situation), 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 ST103, the sensor constantly measures the water temperature of the tank A, and when the actual temperature is within the set temperature sensitivity, The circulation operation is similarly repeated.

Therefore, 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 to B
The so-called cooling operation (hereinafter, cooling operation in the case of cooling) 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). Is performed) (ST207). In the process of performing the cooling operation, return to the first ST103,
Return to the initial state where 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 hereinafter) 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). Thereby, hot water is circulated and supplied to the B tank via the supply pipe (naturally, water having temperature sensitivity outside the set temperature of the B tank is returned to the heat pump, the same applies hereinafter), so-called heating operation (hereinafter The heating operation in the case of heating means such a situation (S).
T217). 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, ST105 to ST106 or ST1 of tank A
Follow the same process as 16 (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 out of the set temperature sensitivity. When it is detected, the process goes to ST305-2. In this case, when the actual temperature detected by the sensor is outside the set temperature sensitivity (set value <actual temperature) (ST306), cooling is required, so the cooling operation of the heat pump starts and the multi-valve The opening and the stop of the circulation pump are performed to connect the piping and the central control device to the C tank. As a result, the cooling water is circulated and supplied to the C tank through the supply pipe (of course, C
The same applies hereafter, including returning water outside the set temperature sensitivity of the tank to the heat pump. The so-called cooling operation is performed (ST307). In the process of performing the cooling operation, the process returns to the first ST103 and returns to the first state in which the water temperature of the C tank 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, so that the piping and the central control device and the C tank (the same can be considered in the case of other water tanks. The same shall apply). As a result, the warm water flows through the supply pipe to 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 process returns to the first ST103 and returns to the first state in which the water temperature of the C tank is detected by the sensor. And
After that, the process returns to the initial 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 cooled or cooled in the same manner as the A tank described above. A warming circulation operation or a normal circulation operation is performed. That is, the same process as ST105 to ST106 or ST116 of the tank A is followed (not shown).

As described above, when the water temperature of each water tank is detected and the treatment for each water tank is completed, the process returns to the first temperature measurement of each water tank. At the time of this return, the water temperature of each water tank is measured again, and when the difference between the actual temperature and the set value is controlled sequentially from the larger water tank or within the set temperature sensitivity, only the water tank concerned, usually The circulation operation of 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, the water temperature of each water tank is measured in ST103, and if the actual temperature is out of the set temperature sensitivity, the temperature reaches the ST105-3, and the actual temperature and the water tank with the larger difference between the set values, In this example, tank A is ST
405 is reached. In this case, when the actual temperature detected by the sensor is outside the set temperature sensitivity (set value <actual temperature) (S
T406), since cooling is required, as described above,
A cooling operation is performed (ST407). In the process of performing the cooling operation, the process returns to the first ST103 and returns to the first state in which the water temperature of the tank A 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) (ST416), since heating is required, the heating operation is performed as described above (ST417). ).
In the process of performing the heating operation, the process returns to the first ST103 and returns to the first state in which the water temperature of the tank A is detected by the sensor. As described above, the treatment of the A tank having the largest difference is completed, the actual temperature of the A tank is maintained within the set temperature sensitivity (not shown), and the actual temperature of the B tank or the C tank is Is outside the set temperature sensitivity, ST105-31 or ST105
It reaches to -32. In this case, the water tank having the large difference is the target of the treatment, and in this example, the tank B having the next largest difference is treated first. Specifically, when the actual temperature detected by the sensor is outside the set temperature sensitivity (set value <actual temperature) (S
T506), since cooling is required, as described above,
A cooling operation is performed (ST507). In the process of performing the cooling operation, the process returns to the first ST103 and returns to the first state in which the water temperature of the B tank 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) (ST516), since heating is required, the heating operation is performed as described above (ST517). ).
In the process of performing the heating operation, the process returns to the first ST103, and returns to the first state in which the water temperature of the B tank 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 becomes the processing target, and the processing is performed. Specifically, when the actual temperature detected by the sensor is outside the set temperature sensitivity (set value <actual temperature) (ST606), cooling is required, and thus the cooling operation is performed as described above ( ST607). In the process of performing the cooling operation, the process returns to the first ST103 and returns to the first state in which the water temperature of the C tank 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 process returns to the first ST103 and returns to the first state in which the water temperature of the C tank is detected by the sensor. Through the operations as described above, the water temperature environment of each aquarium can be managed individually or in multiple stages,
And it is performed based on the set value of each water tank, and the above-mentioned ST10
As shown in 2, as long as the normal operation continues, the operation is managed by the above-mentioned operations or procedures. The set values for each aquarium are 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, and are included in the scope of the present invention as long as the concept of this multistage temperature control system is adopted.

[0020]

【Example】

Hereinafter, an example of the multi-stage temperature control system of the present invention will be described. 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 connected to a central control device 4 usually installed indoors.

Reference numerals 5, 6, and 7 indicate water tanks, and 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 drawing denote supply pipes for connecting the A tank 5, the B tank 6 and the 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. This allows
Water heated or cooled via the heat pump 1 passes through the supply side pipe 2 through the central control device 4 or individually or individually through the supply pipes 8, 9 and 10 (shown as a whole) to the A tanks 5 to C. It is supplied to the tank 7. When the actual temperature at the sensors 14, 15, 16 set in the A tank 5 to C tank 7 is less than or equal to the set value, the cold water, water or hot water of each water tank, or the cold water, water or hot water of the water tank to be corrected, Return pipes 11, 12, 1
Returning to the heat pump 1 from the central control device 4 via the return side pipe 3 via 3 (shown as a whole).

In the figure, 17 to 19 are circulation pipes, and the circulation pipe 17 therein is interposed 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 circulates when the actual temperature of the C tank 7 is substantially equal to the set value. Pump 22
The water or hot water in the C tank 7 is circulated through the operation of 1 and the opening of the valve 25. The central control device 4 is provided with a water temperature control panel 26 including switches, control circuits, and multi-valves 27 to 29 (corresponding to each water tank) . In addition, reference numeral 30 in the drawing denotes piping.

A is a supply pipe 8 for the A tank 5 to C tank 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 indoor temperature of the factory, the test site, and other buildings, and E indicates the outside air temperature. And, "Development research of multi-stage water temperature control system" which submits the temperature measurement at the experimental stage of each temperature A, B, D, E in the property submission form.
Where A is the discharge temperature, B is the intermediate temperature, D is the room temperature, and E is
Is displayed as a graph of 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 width , and the heating operation or the cooling operation is controlled within a certain range. Specifically, when the actual temperature drops below the heating sensitivity,
Floor, i.e., if the temperature exceeds the set temperature sensitivity, the heating operation will not start.
The heating operation is stopped when the actual temperature reaches the neutral zone of the heating sensitivity. On the other hand, when the actual temperature rises beyond the cooling sensitivity, that is, the set temperature
When the temperature deviates, the cooling operation is performed , and when the actual temperature reaches the neutral zone of the cooling sensitivity, the cooling operation is stopped. That is, temperature control of the water tank (water temperature tube
Is always operating within the set temperature sensitivity.
Is performed, and at the stage where the neutral zone of the set temperature sensitivity is reached,
The heating operation or cooling operation has composition that will be stopped
It Therefore, there is a certain range in heating sensitivity and cooling sensitivity.
Can be heated or cooled at a temperature within the set temperature sensitivity
Or heating or cooling within the neutral zone of the set value
It is a structure that can stop, efficient temperature control and energy saving
Achieving ruggedness and efficient temperature control of multiple tanks
Energy efficiency and water through water temperature control
Severani control of temperature setting for stable water temperature control
Can be achieved.

It should be noted that we will submit data materials and photographs for experiments and development studies using the multi-stage temperature control system of the present invention in a property submission form for reference. Thank you for your cooperation. At the moment, we measure water temperature. As you can see from the graph, it is clear that it is possible to manage the water temperature sufficiently to implement it, and it is possible to manage the water temperature almost established for each aquarium.

Further, in the water tank, that is, the A tank 5 to the C tank 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.

[0030]

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

(1) The heating sensitivity and cooling sensitivity have a certain width.
Heating or cooling at a temperature within the set temperature sensitivity that is provided,
Or stop heating or cooling within the neutral zone of the set value
It has a simple structure, efficient temperature control and energy saving.
Energy efficiency and efficient temperature control of multiple tanks.
Energy efficiency improvement and water temperature control through water temperature control
Stabilize water temperature control by controlling the Sybiani setting
Etc. can be achieved.

(2) Each water temperature in a large number of water tanks is controlled in a multi-step manner.
And / or centralized management system
Water temperature control is achieved.

(3) In addition, water is sequentially supplied from a water tank having a large temperature difference.
Incorporating a priority control system for temperature management,
It is a large-scale aquarium, and is an excellent
It has the following advantages.

(4) The actual temperature of each water tank is detected and
The water temperature is managed sequentially from the water tank with the large difference.
This makes it possible to speed up the adjustment of each water temperature in many water tanks and
Ar control control (management) or efficient control is possible
It becomes Noh. On the other hand, improvement of energy use efficiency is expected
Wear. Furthermore, the optimum water temperature for living organisms or animals and plants
Management is achieved.

(5) Benefit of the water temperature type heat pump
And use, the efficiency of energy utilization can be achieved, and the advantages of the maintenance can be exhibited, and the miniaturization of the system is achieved, and the like.

[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 piping 3 return side piping 4 central control device 5 A tank 6 B tank 7 C tank 8 supply piping 9 supply piping 10 supply piping 11 return piping 12 return piping 13 return Piping 14 Sensor 15 Sensor 16 Sensor 17 Circulation Piping 18 Circulation Piping 19 Circulation Piping 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) Hiroyuki Hirose 1-7-7 Nishiyama, Wakabayashi Nishimachi, Toyota-shi, Aichi Prefecture (56) References A) JP-A-2-234619 (JP, A)

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.
The detected value obtained by the above, and a fixed range for the heating sensitivity and the cooling sensitivity with respect to this detected value.
Heating or cooling at a temperature within the set temperature sensitivity
Or heating or cooling within the neutral zone of the set value
In addition to stopping, the detection value and
From the water tank with the largest difference from the set value, the central controller
The heating device or the heat pump to heat or cool
System that, optimum, multistage temperature control using a heat pump the temperature of the multi-tank aquarium, characterized in that managing the temperature environment in organism germ said each tank. 2. A system settings for each aquarium, multistage temperature control of the water temperature using a heat pump of a large number of water tank, characterized in that the individually set according to claim 1. 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 system for controlling multi-stage temperature water temperature of a number of water tank, characterized by circulating by utilizing a part of the return pipe by using a heat pump.