JPH04320752A - Air conditioner - Google Patents

Abstract

PURPOSE:To get uniform and comfortable environment by a method wherein radiation panels are mounted at a plurality of indoor surfaces or a plurality of radiation panels are mounted at one surface. CONSTITUTION:A signal from a surface temperature sensor 7 for sensing a surface temperature of each of radiation panels is inputted to a control device 3, and then a flow rate adjusting valve 9 is controlled. A program is already stored in a memory in the control device 3 so as to control a flow rate of each of the radiation panels in such a way as the surface temperatures of each of the radiation panels may become equal to each other.

Description

[Detailed description of the invention]

0001

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an air conditioner using a radiant panel, such as a domestic heat pump water cooler/heater.

0002

BACKGROUND OF THE INVENTION Recently, with the aim of improving comfort, radiant heating and cooling systems have been gaining attention in place of the blower type, which has problems with unevenness and drafts. In the future, radiant panels that also serve as wall, floor, and ceiling materials will be commercialized, and radiant panels will likely be installed on multiple sides of a room. However, the current state of the use of radiation is that it is only used to a small extent for floor heating, and ceiling radiant cooling has only been introduced experimentally.With conventional fixed-value control, multiple radiant panels are installed, and windows, etc. When a capacity shortage occurs due to heavy loads, it is difficult to keep each panel at the same temperature, and no method has been devised to control it comfortably and efficiently.

0003

[Problems to be Solved by the Invention] In the future, when a plurality of radiant panels are installed indoors, it will be necessary to create a uniform radiant environment through control that takes into account the effects of windows, furniture, etc.

SUMMARY OF THE INVENTION In view of the above problems, it is an object of the present invention to provide an air conditioner that eliminates the non-uniformity of radiation and increases comfort.

[0005]

[Means for Solving the Problems] The present invention, which solves the above problems, provides a flow rate adjustment valve for each radiant panel, and detects the surface temperature, cold (heat) medium temperature, or heat flow rate of a plurality of radiant panels. This air conditioner is characterized by having a built-in or separate control device that uses the signal as an input signal and outputs a control signal to the flow rate adjustment valve of each radiant panel.

[0006]

[Operation] By providing the above-mentioned control device, the present invention can eliminate to some extent the non-uniformity of radiation when a plurality of radiant panels are installed. Therefore, the discomfort of occupants due to non-uniform radiation is eliminated, and a more comfortable air conditioner can be constructed.

[0007]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Examples of the present invention will be described below with reference to the accompanying drawings. FIG. 1 is a block diagram of a heat pump type air conditioner showing one embodiment of the present invention. In Figure 1, 1 is a water cooler and hot water machine, which has a built-in heat exchanger 2 that produces cold and hot water, a control device 3 that receives signals from a radiation panel and sends a signal to a flow rate adjustment valve, and 2 that produces cold and hot water and a circulation pump. a heat exchanger having a connection port between an outgoing pipe 12 to the radiant panel 8 and a return pipe 13 from the radiant panel;
3 is a control device that receives a control input signal 10 from the surface temperature detector 7 and outputs a control output signal 11 to the flow rate adjustment valve 9; 4 is a ceiling radiant panel attached to the ceiling; and 5 is a floor radiant panel attached to the floor. 6 is a wall radiant panel, 7 is a surface temperature detector attached to the surface of each panel, 8 is a circulation pump that circulates cold and hot water to each radiant panel, 9 is to adjust the amount of cold and hot water circulated to each panel 10 is a control input signal sent from the surface temperature detector 7 to the control device 3; 11 is a control output signal sent from the control device 3 to the flow rate adjustment valve 9;
Reference numeral 12 indicates an outgoing pipe from the water cooler/heater 1 to each radiant panel via the circulation pump 8, and reference numeral 13 indicates a return pipe from each radiant panel to the water cooler/heater 1.

FIG. 2 shows an example of the configuration of the control device 3, in which an input converter 14 receiving a control input signal 10 inputs a signal as temperature data of each radiation panel to an arithmetic device 15. Data processing is performed in the calculation unit 15 based on a program stored in the memory in advance, and the data is output as a flow rate value to the output converter 16.The output converter 16 outputs the control output signal 11 to be sent to the flow rate regulating valve. is being converted to . FIG. 3 shows the arithmetic unit 15
This is an example of the contents of a program that is pre-installed in the .

To explain the operation of the above configuration, the arithmetic unit 15 in the control device 3 stores a program as shown in FIG. For example, during cooling operation, when the ceiling radiant panel is 28℃ and the wall/floor radiant panel is 25℃,
Each temperature is detected by a surface temperature detector 7 and input as a control input signal 10 to an input converter 14 in the control device 3, where it is converted into data that is easy to process. Figure 3 with the current temperature data as is.
Data processing will be performed according to the program of the arithmetic unit 15. The average temperature of the ceiling, walls, and floor is 26℃,
A signal is provided to the output transducer 16 to increase the flow rate of the ceiling radiant panel above the average temperature by an amount proportional to the temperature difference;
It is converted into a control output signal 11 in the output converter 16 and sent to the flow regulating valve. As a result, the amount of cold water circulating through the ceiling radiant panels increases, and if the load remains the same, the panel surface temperature decreases, and uneven radiation tends to be improved. Similarly, during heating operation, uneven radiation tends to be improved by increasing the flow rate of the radiant panel whose temperature is lower than the average temperature.

The state of each radiant panel can be detected not only by the surface temperature but also by the flow rate of the heating medium. Furthermore, the effects of windows, etc. can be dealt with programmatically. For example, in order to suppress the influence of windows, the temperature of the radiant panel on the window surface can be increased or decreased by detecting the radiant temperature of the window and inputting it to a control device.

As described above, according to the air conditioner of the embodiment of the present invention, even when radiant panels are installed on multiple surfaces in a room, the state of each radiant panel is detected and the flow rate is increased or decreased to eliminate unevenness. This improves radiation and creates a comfortable environment for occupants.

0012

[Effects of the Invention] As described above, according to the present invention, when radiant panels are installed on multiple surfaces or in a room, the condition of each radiant panel is detected and uneven radiation is improved. Since the flow rate of the radiant panel is increased or decreased in this direction, it becomes a more comfortable air conditioner that can easily create a comfortable radiant environment, which is extremely useful in practice.

[Brief explanation of drawings]

[Fig. 1] A configuration diagram of a heat pump type air conditioner according to an embodiment of the present invention.

[Figure 2] Configuration diagram of the control device in the same device

[Figure 3] Figure 2
Diagram showing the contents of the program pre-installed in the arithmetic unit shown in

[Explanation of symbols]

1　Cold/hot water machine 2 Heat exchanger 3 Control device 4 Ceiling radiant panel 5 Floor radiant panel 6 Wall radiant panel 7 Surface temperature detector 8 Circulation pump 9 Flow rate adjustment valve 10 Control input signal 11 Control output signal 12 Outbound pipe 13 Return pipe 14 Input converter 15 Arithmetic device 16 Output converter

Claims (1)

[Claims] Claim 1: A plurality of radiant panels that absorb and radiate heat from the human body are installed on at least one side of the room, the status of each panel is detected, and the flow rate of heat medium to each panel is adjusted according to the load on each panel. An air conditioner characterized by having a control device that controls.