JP2002115885A - Energy control system for air conditioner - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an energy control system capable of reducing the energy consumption of an existing air conditioner. SOLUTION: An energy saving executing device for executing energy saving and an energy saving measuring device for measuring the amount of energy saving are installed on the existing air conditioner to effect energy saving. An inverter 107 for controlling the number of rotation of a fan 103 for the air conditioner 101 is employed as the energy saving executing device while a watthour meter 1 for measuring the electric power consumption of the fan 103 of the air conditioner 101, an operating hour integrating meter 2 for the air conditioner 101 and an energy saving amount calculating means 3 for calculating the amount of saved energy by the measured values of the watthour meter 1 and the operating hour integrating meter 2 are employed for the saved energy measuring device.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention has been achieved by an energy saving execution device for reducing the energy consumption of an air conditioner for an air conditioner already installed in an office building or the like, and the above energy saving execution device. The present invention relates to an energy management system for an air conditioner that saves energy by newly installing an energy saving measurement device that measures an amount of energy consumption reduction (hereinafter referred to as an energy saving amount).

[0002]

_2. Description of the Related Art In recent years, there has been an increasing need for reduction of energy consumed in office buildings for the purpose of reducing the amount of CO _{2 that} causes global warming. In particular, the demand for reducing the energy consumption of air conditioning, which accounts for the majority of energy consumed in office buildings, has become very high,
There is a demand for an air conditioner having an energy saving function.

As a typical air conditioner having an energy saving function, there is an air conditioner equipped with an inverter for controlling the air flow as shown in FIG.

[0004] In FIG. 4, an air conditioner 101 removes air cooled or superheated by a heat exchanger 102 from a fan 103.
To the room 104. The air in the room 104 passes through the return air duct 105, and part of the air is exchanged with the outside air through the outside air duct 106, and then returns to the air conditioner to air-condition the room 104.

[0005] An inverter 107 for changing the number of rotations of the fan is attached to the fan 103. The consumption of the fan is changed by changing the number of rotations of the fan according to the air-conditioning load condition (the number of people, the number of OA equipments, etc.) of the room 104. Energy is saved by reducing power.

[0006]

However, in general, air conditioners having an energy saving function have few examples of measuring the energy saving at the operation stage, and it is difficult to know whether the energy saving function is operating effectively. Because it is more expensive than air conditioners, it is rarely adopted due to budgetary restrictions, and the reality is that the energy consumption of air conditioning is not easily reduced.

[0007] The present invention solves the above-mentioned problems, and energy saving is provided by newly installing an energy saving execution device for saving energy for an existing air conditioner without an energy saving function and an energy saving measuring device for measuring the amount of energy saving. The purpose of the present invention is to provide an energy management system for an air conditioner.

[0008]

Means for Solving the Problems One means of the energy management system for an air conditioner of the present invention for solving the above problems is to reduce the energy consumption of the air conditioner with respect to an existing air conditioner. The present invention is characterized in that energy saving is performed by newly installing an energy saving execution device for reducing energy consumption and an energy saving measurement device for measuring the amount of energy consumption reduction achieved by the energy saving execution device.

Further, another means is an energy saving execution device for reducing the energy consumption of the air conditioner with respect to the existing air conditioner, and measuring the energy consumption reduction achieved by the energy saving execution device. An energy management system for an air conditioner that saves energy by newly installing an energy saving measurement device that performs energy saving, wherein an inverter that controls a fan rotation speed of the air conditioner is used as the energy saving execution device, and air is used as the energy saving measurement device. A power meter that measures the fan power consumption of the air conditioner, an operation time integrator that measures the operation time of the air conditioner, and an energy saving amount that calculates the energy saving amount from the measurement value of the power meter and the measurement value of the operation time accumulator. It is characterized by using arithmetic means.

[0010] Further, another means is an energy saving execution device for reducing the energy consumption of the air conditioner with respect to an existing air conditioner, and measuring an energy consumption reduction amount achieved by the energy saving execution device. An energy management system for an air conditioner that saves energy by newly installing an energy saving measurement device that performs energy saving, wherein the energy saving measurement device uses a total heat exchanger that exchanges heat between indoor air and outside air as the energy saving execution device. An outside temperature and humidity sensor that measures the temperature and humidity of the outside air, a heat exchange air temperature and humidity sensor that measures the temperature and humidity of the outside air that has been heat-exchanged by the total heat exchanger, and an air volume that measures the amount of exchange between room air and outside air A sensor, and an energy saving amount calculating means for calculating an energy saving amount from the outside air temperature / humidity sensor, the heat exchange air temperature / humidity sensor, and the air volume sensor. That.

[0011] Further, another means is an energy saving execution device for reducing the energy consumption of the air conditioner with respect to the existing air conditioner, and measuring the energy consumption reduction achieved by the energy saving execution device. An energy management system for an air conditioner that saves energy by newly installing an energy saving measurement device that performs energy saving, wherein an outside air damper that adjusts the amount of outside air introduced is used as the energy saving execution device, and indoor temperature is used as the energy saving measurement device. An indoor temperature / humidity sensor for measuring humidity, an external temperature / humidity sensor for measuring the temperature / humidity of outside air, an air volume sensor for measuring the amount of exchange between room air and outside air, a measurement value of the indoor temperature / humidity sensor, and the outside temperature / humidity An energy saving amount calculating means for calculating an energy saving amount from a measurement value of the sensor and a measurement value of the air flow sensor is used.

According to the present invention, energy can be saved for the existing air conditioner.

[0013] Further, the present invention is characterized in that a part or all of a fee corresponding to the energy saving amount measured by the energy saving measuring device is charged.

[0014] Further, the present invention is characterized in that a fee is charged based on the measurement result measured by the energy saving measuring device every predetermined period.

[0015] Further, the present invention is characterized in that data measured by the energy saving measuring device is obtained, the amount to be charged is calculated based on the obtained data, and the calculated amount is output.

According to the present invention, by the above means, the energy-saving device installer and the air conditioner user can continuously obtain the energy-saving benefits, reduce the cost of the energy-saving device, and easily manufacture the energy-saving device. It can be installed, increasing the number of energy-saving devices installed, and greatly contributing to reducing the energy consumption of air conditioners.

[0017]

BEST MODE FOR CARRYING OUT THE INVENTION
For an existing air conditioner, newly installing an energy saving execution device for reducing the energy consumption of the air conditioner and an energy saving measurement device for measuring the amount of energy consumption reduction achieved by the energy saving execution device. This is an energy management system for an air conditioner characterized by performing energy saving by using an air conditioner, and has an effect of saving energy for an existing air conditioner.

According to a second aspect of the present invention, an energy saving execution device for reducing the energy consumption of the air conditioner with respect to the existing air conditioner, and the energy consumption reduction amount achieved by the energy saving execution device are provided. An energy management system for an air conditioner that saves energy by installing a new energy saving measurement device to measure.It uses an inverter that controls the fan rotation speed of the air conditioner as an energy saving execution device in the first half, and as an energy saving measurement device in the first half. An energy meter that measures the fan power consumption of the air conditioner, an operation time integrator that measures the operation time of the air conditioner, and an energy saving device that calculates an energy saving amount from the measurement value of the power meter and the measurement value of the operation time integrator. The energy management system for an air conditioner is characterized by the use of quantity calculation means. It has an effect of performing the energy-saving reduce emissions conveying power.

According to a third aspect of the present invention, an energy saving execution device for reducing the energy consumption of the air conditioner with respect to an existing air conditioner, and the energy consumption reduction amount achieved by the energy saving execution device are provided. An energy management system of an air conditioner that saves energy by newly installing an energy saving measurement device to measure, using a total heat exchanger that performs heat exchange between indoor air and outside air as the energy saving execution device,
An outside temperature and humidity sensor that measures the temperature and humidity of the outside air as the energy saving measurement device, a heat exchange air temperature and humidity sensor that measures the temperature and humidity of the outside air that has been heat-exchanged by the total heat exchanger, and an exchange amount between room air and outside air And an energy management system for an air conditioner, characterized by using energy saving amount calculating means for calculating an energy saving amount from the outside air temperature / humidity sensor, the heat exchange air temperature / humidity sensor, and the air volume sensor. This has the effect of saving energy by reducing the outside air load.

According to a fourth aspect of the present invention, an energy saving execution device for reducing the energy consumption of the air conditioner and an energy consumption reduction amount achieved by the energy saving execution device are compared with the existing air conditioner. An energy management system of an air conditioner that saves energy by newly installing an energy saving measurement device to measure, using an outside air damper that adjusts an introduction amount of outside air as the energy saving execution device, and indoors as the energy saving measurement device. An indoor temperature / humidity sensor for measuring temperature / humidity, an outside temperature / humidity sensor for measuring the temperature / humidity of outside air, and an air volume sensor for measuring the exchange amount of room air and outside air,
An energy management system for an air conditioner, comprising: an energy saving amount calculating means for calculating an energy saving amount from a measurement value of the indoor temperature / humidity sensor, a measurement value of the outside temperature / humidity sensor, and a measurement value of the air flow sensor. This has the effect of saving energy by using outside air as cooling energy.

According to a fifth aspect of the present invention, the energy management of the air conditioner according to any one of the first to fourth aspects, wherein a part or all of a fee corresponding to the energy saving amount measured by the energy saving measuring device is charged. It is a system, and has the effect of giving a sense of value as a product by charging a part or all of a fee corresponding to the energy saving amount measured by the energy saving measuring device.

The invention according to claim 6 is characterized in that a fee is charged based on the measurement result measured by the energy saving measuring device at predetermined time intervals. This is a system and has the effect of charging periodically.

According to a seventh aspect of the present invention, the data measured by the energy saving measuring device is obtained, the amount to be charged is calculated based on the obtained data, and the calculated amount is output. An energy management system for an air conditioner according to any one of Items 1 to 4, which has an effect of obtaining energy saving data and determining an amount to be charged.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.

[0025]

(Embodiment 1) FIG. 1 uses an inverter 107 for controlling the number of revolutions of a fan 103 of an air conditioner 101 as an energy saving execution device, and measures the power consumption of the fan 103 of the air conditioner 101 as an energy saving measurement device. A watt-hour meter 1 to measure, an operation time integrator 2 to measure the operation time of the air conditioner 101, and an energy-saving amount calculating means for calculating an energy-saving amount from the measurement value of the power meter 1 and the measurement value of the operation time integrator 2. 3 is a block diagram in the case of using No. 3. FIG.

The same parts as those in the conventional example are denoted by the same reference numerals, and description thereof is omitted.

In FIG. 1, the power consumption of the fan 103 is measured by a watt hour meter 1, the operating state of the fan 103 is monitored by an operating time integrator 2, and the operating time integrator 2 The operation time of the air conditioner 101 is determined by integrating the operation states. The energy saving amount calculation device 3 calculates the energy saving amount effect amount S1 from the measured value H of the watt hour meter 1 and the measured value Ton of the operation time integrator 2 as S1 = W * Ton-H. Here, W is the rated power of the fan 3.

That is, the amount of power consumption reduction of the fan by installing the inverter is regarded as the energy saving amount.

The energy-saving device provider 4 periodically (for example, once a month) obtains the data of the energy-saving amount S1 calculated by the energy-saving amount calculating means 3, determines a billing amount based on the energy saving, and determines the amount. It is charged to the air conditioner user 5. The charge amount Y1 is determined by Y1 = S1 * K1. Here, K1 is an energy saving coefficient and is determined by consultation between the energy saving device provider 4 and the air conditioner user 5.

As described above, according to the air conditioner energy management system of the first embodiment of the present invention, the energy saving device provider 4 calculates the energy saving amount due to the installation of the inverter 107 and gives the air conditioner user 5 the energy saving amount. Will be charged.

As a result, it is possible to obtain an energy management system for an air conditioner that can clarify the profit generated by the energy saving device and charge the amount according to the profit.

(Embodiment 2) FIG. 2 uses a total heat exchanger 6 for exchanging heat between outside air and room air as an energy saving execution device, and measures the temperature and humidity of the outside air before passing through the total heat exchanger 6 as an energy saving measurement device. An outside temperature and humidity sensor 7 to calculate, a heat exchange air temperature and humidity sensor 8 to measure the temperature and humidity of outside air after passing through the total heat exchanger, an air volume sensor 9 to measure the amount of outside air introduced, and an outside temperature and humidity sensor 7 is a block diagram in the case of using an energy saving amount calculating means 10 for calculating an energy saving amount from a measurement value 7, a measurement value 8 of a heat exchange air temperature / humidity sensor, and a measurement value of an air flow sensor 9.

The same parts as those in the conventional example are denoted by the same reference numerals, and the description is omitted.

In FIG. 2, a total heat exchanger 6 is installed in the outside air duct 106, and before and after the total heat exchanger 6, an outside temperature / humidity sensor 7 for measuring the temperature and humidity of the outside air passes through the total heat exchanger. A heat exchange air temperature / humidity sensor 8 for measuring the temperature and humidity of the outside air and an air volume sensor 9 for measuring the amount of outside air introduced are installed. The energy saving amount calculating means 10 calculates the enthalpy of the outside air from the measurement value of the outside temperature / humidity sensor 7. Io is calculated from the measured value of the heat exchange air temperature / humidity sensor 8 to calculate the enthalpy Ie of the heat exchange air, and the energy saving amount S2 is calculated by S2 = ∫G * (Io−Ie) * Qdt at the time of cooling, and at the time of heating. , S2 = ∫G * (Ie−I0) * Qdt. Here, Q is a measurement value of the air volume sensor 9,
G is the specific gravity of air.

That is, the amount of energy saving is defined as the amount of reduction in external air load by installing the total heat exchanger.

The energy-saving device provider 4 periodically (for example, once a month) obtains the data of the energy-saving amount S2 calculated by the energy-saving amount calculating means 10, determines a billing amount based on the energy saving, and determines the amount. To the air conditioner user 5. The charge amount Y2 is determined by Y2 = S2 * K2. Here, K2 is an energy saving coefficient, which is determined by consultation between the energy saving device provider 4 and the air conditioner user 5.

As described above, according to the energy management system for an air conditioner of the second embodiment of the present invention, the energy saving apparatus provider 4 calculates the amount of energy saving by installing the total heat exchanger 6 and Will be charged a fee commensurate with the amount of energy saved.

As a result, an energy management system for an air conditioner can be obtained which clarifies the profit generated by the energy saving device and can charge an amount corresponding to the profit.

(Embodiment 3) FIG. 3 uses an outside air damper 11 for adjusting the amount of outside air introduced as an energy saving execution device, an outside temperature / humidity sensor 7 for calculating the temperature and humidity of outside air as an energy saving measurement device, and a room temperature / humidity. Temperature / humidity sensor 12 for measuring temperature
And an air flow sensor 9 for measuring the amount of outside air introduced, and an energy saving amount calculating means 13 for calculating an energy saving amount from a measurement value of the outside temperature and humidity sensor 7, a measurement value of the indoor temperature and humidity sensor 12, and a measurement value of the air flow sensor 9. It is a block diagram in the case of using.

The same parts as those in the conventional example are denoted by the same reference numerals, and description thereof will be omitted.

In FIG. 3, the outside air damper 11 installed in the outside air duct 106 adjusts the amount of outside air introduced. When the enthalpy of outside air is smaller than the enthalpy of the room during cooling, the outside air is actively introduced ( So-called outdoor air cooling). Before and after the outside air damper 11, an outside temperature and humidity sensor 7 for measuring the temperature and humidity of the outside air and an air volume sensor 9 for measuring the amount of outside air introduced are installed. Is installed. The energy saving amount calculating means 13 calculates the enthalpy Io of the outside air from the measurement value of the outside temperature and humidity sensor 7 and the enthalpy Ii of the room air from the measurement value of the indoor temperature and humidity sensor 12, and calculates the energy saving amount S3 when the outside air is cooled. G * (Ii-Io) * Qdt is calculated, otherwise S3 = 0. Here, Q is the measurement value of the air flow sensor 9, and G is the specific gravity of air.

That is, the amount of energy saving is defined as the amount of reduction in cooling load due to outside air cooling.

The energy-saving device provider 4 periodically (for example, once a month) obtains the data of the energy-saving amount S3 calculated by the energy-saving amount calculating means 13, determines a billing amount based on the energy saving, and determines the amount. To the air conditioner user 5. The charge amount Y3 is determined by Y3 = S3 * K3. Here, K3 is an energy saving coefficient and is determined by consultation between the energy saving device provider 4 and the air conditioner user 5.

As described above, according to the energy management system for an air conditioner of the third embodiment of the present invention, the energy saving device provider 4 calculates the energy saving by installing the outside air damper, and provides the air conditioner user 5 with a fee corresponding to the energy saving. Will be charged.

As a result, an energy management system for an air conditioner that can clarify the profit generated by the energy-saving device and can charge an amount corresponding to the profit can be obtained.

Although not shown in the drawings of the first to third embodiments, the energy-saving device provider obtains the energy-saving amount data calculated by the energy-saving amount calculating means at the site where the air conditioner is installed. , Internet and LAN (Local A
It can also be obtained by using communication means such as a “rea.network” and “Fax”.

[0047]

As described above, according to the present invention, the amount of energy saving when an energy saving device is installed in an existing air conditioner is measured, and an amount corresponding to the degree of energy saving is provided to the air conditioner user. As a result, an effect is obtained that the air conditioner user can install the energy saving device without spending a large amount of money. The effect is obtained that the energy-saving equipment installation company can regularly obtain stable income.

Further, the use of the energy saving device is promoted, the energy consumption is reduced, and the effect of suppressing the deterioration of the global environment is obtained.

[Brief description of the drawings]

FIG. 1 is a block diagram of an energy management system for an air conditioner according to Embodiments 1, 2, 5, 6, and 7 of the present invention.

FIG. 2 is a block diagram of an energy management system for an air conditioner according to Embodiments 1, 3, 5, 6, and 7 of the present invention.

FIG. 3 is a block diagram of an energy management system for an air conditioner according to Embodiments 1, 4, 5, 6, and 7 of the present invention.

FIG. 4 is a diagram showing a conventional air conditioner having an energy saving function.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Watt-hour meter 2 Operating time totalizer 3 Energy saving calculation means 4 Energy saving device provider 5 Air conditioner user 6 Total heat exchanger 7 Outside temperature and humidity sensor 8 Heat exchange air temperature and humidity sensor 9 Air flow sensor 10 Energy saving amount calculation means 11 Outside air damper 12 Indoor temperature / humidity sensor 13 Energy saving amount calculation means

Claims (7)

[Claims] An energy-saving execution device for reducing the energy consumption of the air conditioner with respect to an existing air conditioner,
An energy management system for an air conditioner that saves energy by newly installing an energy saving measurement device that measures an amount of reduction in energy consumption achieved by the energy saving execution device. 2. An energy saving execution device for reducing energy consumption of the air conditioner with respect to an existing air conditioner,
An energy management system for an air conditioner that saves energy by newly installing an energy saving measurement device that measures an energy consumption reduction amount achieved by the energy saving execution device, wherein the fan of the air conditioner is used as the energy saving execution device. Using an inverter that controls the rotation speed, a power meter that measures the fan power consumption of the air conditioner as the energy saving measurement device, an operation time integrator that measures the operation time of the air conditioner, and a measurement value of the power meter. An energy management system for an air conditioner, comprising an energy saving amount calculating means for calculating an energy saving amount from a measurement value of an operation time integrator. 3. An energy saving execution device for reducing energy consumption of the air conditioner with respect to an existing air conditioner,
An energy management system for an air conditioner that saves energy by newly installing an energy saving measurement device that measures an energy consumption reduction amount achieved by the energy saving execution device, wherein the energy saving execution device includes indoor air and outside air. Using an all-heat exchanger that performs heat exchange, an outside air temperature and humidity sensor that measures the temperature and humidity of the outside air as the energy saving measurement device, and a heat exchange air temperature that measures the temperature and humidity of the outside air heat exchanged by the all heat exchanger A humidity sensor, an air flow sensor that measures the amount of exchange between room air and outside air, and an energy saving amount calculation unit that calculates an energy saving amount from the outside air temperature and humidity sensor, the heat exchange air temperature and humidity sensor, and the air flow sensor. Characteristic air conditioner energy management system. 4. An energy saving execution device for reducing energy consumption of the air conditioner with respect to an existing air conditioner,
An energy management system for an air conditioner that saves energy by newly installing an energy saving measurement device that measures an energy consumption reduction amount achieved by the energy saving execution device, wherein the amount of outside air introduced is reduced as the energy saving execution device. Using an outside air damper to be adjusted, an indoor temperature and humidity sensor for measuring the temperature and humidity of the room as the energy saving measurement device, an outside temperature and humidity sensor for measuring the temperature and humidity of the outside air, and an air flow sensor for measuring the amount of exchange between room air and outside air Energy saving means for calculating an energy saving amount from a measurement value of the indoor temperature / humidity sensor, a measurement value of the outside temperature / humidity sensor, and a measurement value of the air flow rate sensor. Management system. 5. The energy management system for an air conditioner according to claim 1, wherein a part or all of a charge corresponding to the energy saving amount measured by the energy saving measuring device is charged. 6. The energy management system for an air conditioner according to claim 1, wherein a fee is charged based on a measurement result measured by said energy saving measurement device every predetermined period. 7. The method according to claim 1, further comprising obtaining data measured by the energy saving measurement device, calculating an amount to be charged based on the obtained data, and outputting the calculated amount. Energy management system for air conditioners.