JPH0285626A - Water flow distributing system in air conditioning facility - Google Patents

Abstract

PURPOSE:To make the capacity uniform throughout the units by a method wherein a water supply pipe is connected to air conditioning units to circulate cooled or warmed water from a heat source, and a distributor equipped with an orifice type adjusting mechanism is furnished at each junction of the air conditioning unit and the main water supply pipe, and each air conditioning unit is equipped with a microcomputer switch, a control pulse, etc. CONSTITUTION:Cooled or warmed water that is heated up to a specified temperature at a heat source H is supplied by a pump P to air conditioning units A, B and C. In each of the air conditioning units, while the room temperature is detected and the wind flow rate and the water flow rate are regulated by a microcomputer switch 11 and a control valve 12, the cooled or warmed water is sent toward the adjacent air conditioning unit by a distributor F. For example, in cooling operation, the wind flow rate and the water flow rate are reduced for No.1 unit because the cooled water temperature is low, increased a little for No.2 unit, and adjusted to the maximum for No.3 unit because the cooled water temperature becomes high. As this operation is automatically carried out, the optimum air conditioning state can be maintained. In addition, the amount of pipe fittings required is reduced by half and the erection period of time can be shortened because the pipelines are composed of single pipes.

Description

[Detailed Description of the Invention] [Field of Industrial Application] The present invention is a one-pipe system that equalizes the capacity of each air conditioning unit that can be arranged in large numbers, solves uneven indoor temperatures, and provides a comfortable air-conditioned environment at all times. This relates to a water flow distribution system in an air conditioner based on.

[Conventional technology]

Conventionally, a water flow distribution system that attempts to simultaneously supply cooling and heating to a large number of rooms, as shown in Fig.
, B%C and the heat source H side were connected using two or three main pipes.

[Problem to be solved by the invention]

In the conventional system, as mentioned above, it is composed of several pipes, but as the number of pipes increases, the number of cylindrical parts where the pipes go up and down increases compared to parts such as beams and columns of buildings. Of course, the installation work is complicated and time-consuming, and there is inevitably an air pocket inside the pipe, which causes a serious hindrance to the flow of water, and foreign matter such as rust adheres to the pipe, causing red water. It was also the reason.

In addition, in normal cases, a proportional electric two-way valve is installed on the water receiving side of each unit A, B', and C, so that cooling from the heat source H,
The flow of hot water to each unit A, B, and C is adjusted by the action of the pump P, and control operations such as stopping the water are performed, but the distance between each unit A, B, and C is There were serious drawbacks such as the water supply temperature changing sequentially due to the relationship between the two units, the difference in the capacity of each unit, and uneven indoor temperature.

In other words, in the conventional piping system, the temperature of the water sent from air conditioning unit A to the next air conditioning units B and C rises in the case of cold water and falls in the case of hot water because the primary water and secondary water are mixed sequentially. There was a significant difference in ability between the 1st floor unit and the hidden 3rd unit, resulting in an imbalance in temperature. For example, when the cold water temperature is 7℃ during air conditioning, water at 7℃ initially flows in the main piping of the TAT unit, but the water in the second unit rises to 8℃ due to the mixed water, and reaches the third unit. The temperature is doubled to 10°C, and it is inevitable that there will be a significant difference in performance between the units.

[Problem to be solved by the invention]

The present invention replaces multiple piping with many of the above drawbacks with a single pipe,
Furthermore, by incorporating a microcomputer switch and a control valve into the piping, it is possible to equalize the capacity of the entire unit, and the piping work is also very easy.In particular, the flow resistance in the pipes is extremely low, and the load on the pump is also reduced. Its main purpose is to significantly reduce

[Means to solve the problem]

As a means for achieving the above object, the present invention provides a piping configuration in which hot and cold water from a heat source is sent to a plurality of air conditioning units through a large number of water pipes, in which the water pipe is connected to each air conditioning unit as a single pipe. It is an object of the present invention to provide a water flow distribution system in an air conditioning mechanism, characterized in that the system is configured to circulate cold and hot water from the heat source side in a fixed direction through a first water pipe.

In addition, as described in claims 0 and 0 (each air conditioning unit is provided with a distributor having an orifice adjustment mechanism at the connecting portion of the main pipe, and each air conditioning unit is equipped with a microcomputer switch, a control valve, etc.) A feature of this system is that it incorporates a mechanism to simultaneously control and adjust the air volume and water volume in each air conditioning unit.

[For production]

Cold and hot water from the heat source side passes through piping via pump operation,
Only the required amount of cold and hot water is supplied by a distributor provided at the branch part of each unit.

In such a case, the air volume and water volume of each air conditioning unit can be automatically controlled and adjusted using microcomputer switches and control valves, thereby making it possible to control the room temperature evenly and extremely easily.

〔Example〕

Hereinafter, embodiments of the present invention will be described in detail with reference to illustrative drawings. A piping circuit having a heat source H and a pump P is formed by one piping E, and the cylindrical portion of the piping E is appropriately connected to the cylindrical portion shown in the second diagram. A distributor F is provided, and the water inlet and outlet pipes G and q of each air conditioning unit A%BSC are connected to each other.

The above distributor F is an orifice distributor shown in FIGS. 3 and 4, in which reference numeral (1) is the main body, (2) is the movable orifice, (3) is the water supply adjustment port, and (4) is the orifice distributor. ) is the main piping connection port, (5) is the unit water supply connection port, (6) is the unit return water connection port, (7) is the mixing part provided in the valve body, and (8) is 12! The external adjustment mechanism for the motor, etc. (9) is the motor cover.

In addition, a heat exchanger is installed in each of the air conditioning units A%B and C, and a microcomputer switch (b) and a control valve (2) interlocked with the switch are installed.

In the above configuration, the cold and hot water that has been heat exchanged to a predetermined temperature from the heat source i is supplied to each air conditioning unit A, B, by the operation of the pump P.
In this case, the microcomputer switch (6) and control valve (6) of each air conditioning unit A, B, and C are
6) senses the room temperature, adjusts the air volume and water volume of each air conditioning unit, and flows cold and hot water to the adjacent air conditioning unit side (in the direction of the arrow) at the distributor F.

For example, during cooling, the room temperature is detected using a microcomputer switch and a control valve. Since the chilled water is low in the Al unit, the air volume and water volume are adjusted, the m2 unit is slightly increased in volume from the above, and the third unit has a higher chilled water temperature, so the air volume and water volume are adjusted to the maximum. By automatically controlling such operations, the indoor temperature becomes average, and it is possible to maintain optimal air conditioning at all times.

In addition, the orifice (2) in the distributor F is moved by an electric motor (8) that is linked to a microcomputer switch Ql) to control or adjust the flow of water in the valve, but regardless of the above, there is a slight The water flow is through the passageway (
2) flows to the other side, and the pump (D
reduce the load on

〔Effect of the invention〕

The present invention is based on configuration 1 and has the following effects.

Since the entire piping is a single pipe (one pipe), compared to conventional multiple piping, not only piping materials and heat insulating materials, but also valves, joints, and other components associated with the piping are reduced by half, making these construction work easier. The total length of the piping is short, reducing problems such as water leakage, and in particular, the water flow resistance is extremely reduced, so the energy used by the pump can be greatly reduced. , Energy saving J: Optimal.

Furthermore, since it is a single pipe arrangement, there is no need for pipes to move up and down, resulting in a simple structure and completely eliminating concerns about air accumulation and rust occurring within the pipes.

Furthermore, in the present invention, mechanisms such as microcomputer switches and control valves are incorporated in addition to the single pipe piping.
Automatically controls the amount of water and the amount of water in each air conditioning unit) A, B,
By equalizing the water supply capacity to C at will, it is possible to fundamentally solve the cause of uneven indoor temperature.

[Brief explanation of drawings]

Figure 1 is an explanatory diagram of a conventional water flow distribution system, Figure 2 is an explanatory diagram of a water flow distribution system according to the present invention, Figure 3 is an external view of each air conditioning unit distribution section, and Figure 4 clearly shows the inside of the distributor. FIG.

Claims (3)

[Claims] (1) In a piping configuration in which hot and cold water from the heat source side is distributed to multiple air conditioning units through a large number of water pipes, the water pipe is connected to each air conditioning unit as a single pipe, and the water pipe is connected to each air conditioning unit via the water pipe. 1. A water flow distribution system in an air conditioning mechanism, characterized in that the water flow distribution system is configured to circulate cold and hot water from a heat source side in a fixed direction. (2) In the piping system mentioned above, a distributor with an orifice adjustment mechanism was installed at the connection between each air conditioning unit and the main piping, so that the required amount of cold and hot water was evenly sent to each air conditioning unit. A water flow distribution system in an air conditioning system characterized by: (3) An air conditioner characterized in that a mechanism such as a microcomputer switch and a control valve is incorporated into each air conditioning unit in the above piping system, so that the air volume and water volume in each air conditioning unit can be controlled and adjusted simultaneously. Water flow distribution system in the mechanism.