CN205119356U - Family measurement system is divided to VRV central air conditioning energy consumption - Google Patents

Abstract

The utility model discloses a family measurement system is divided to VRV central air conditioning energy consumption, include: VRV air conditioner host computer and control terminal, be provided with the electric energy meter between VRV air conditioner host computer and the control terminal, still parallelly connectedly between VRV air conditioner host computer and the control terminal be provided with many VRV air conditioner internal unit, all be provided with electronic expansion valve between every VRV air conditioner internal unit and the VRV air conditioner host computer, all be provided with data collection station between every VRV air conditioner internal unit and the control terminal, every data collection station all is connected to VRV air conditioner internal unit, electronic expansion valve and electric energy meter. The utility model discloses a through data collection station can effectual statistics every electric quantity that VRV air conditioner internal unit consumed, independently accomplish by every data collection station self VRV air conditioner internal unit's data acquisition, need not the internal signal with the help of VRV central air -conditioning system, to the requirement of VRV central air -conditioning system un -specificness, therefore the commonality is strong, is applicable to the VRV central air -conditioning system of all kinds of brands.

Description

VRV air-conditioning energy consumption household metering system

Technical field

The utility model relates to a kind of energy consumption household metering system based on VRV central air conditioner system.

Background technology

Along with the development and progression of society, the continuous lifting of the living standard of people, it is also proposed more and more higher requirement to building central air conditioner system, the kind of central air conditioner system also gets more and more.VRV (VariableRefrigerantVolume) air-conditioning system---variable refrigerant volume multi-connected air conditioning system (abbreviation multi-connected machine) is as a kind of central air conditioning system with plurality of advantages such as energy-conservation, comfortable, smooth runnings, also there is each room can independently regulate with the appellative function of the different air conditioner load of satisfied not chummery simultaneously, obtain in the air-conditioning system of modern architecture and use widely.

But the energy consumption household metering problem of VRV central air conditioner system is the difficult problem perplexing air-conditioning applying unit and mansion operating organization always, especially when taxi type office block VRV air-conditioning system uses in a large number, the problem of household metering is particularly outstanding.

Utility model content

For solving the problems of the technologies described above, the utility model provides a kind of VRV air-conditioning energy consumption household metering system, to realize energy consumption household metering that is independent, accurate, VRV central air-conditioning efficiently.

For achieving the above object, the technical solution of the utility model is as follows:

A kind of VRV air-conditioning energy consumption household metering system, comprising:

VRV air-conditioner host and control terminal;

Electric energy meter is provided with between described VRV air-conditioner host and control terminal;

Multiple stage VRV air-conditioning internal machine has also been arranged in parallel, VRV air-conditioning internal machine described in every platform and be provided with electric expansion valve between described VRV air-conditioner host between described VRV air-conditioner host and control terminal;

Data acquisition unit is provided with between VRV air-conditioning internal machine and described control terminal described in every platform, every platform data acquisition unit is all connected to described VRV air-conditioning internal machine, electric expansion valve and electric energy meter, for gathering the electric quantity consumption of the pulse control signal of described electric expansion valve, the air inlet of described VRV air-conditioning internal machine and air outlet temperature and described VRV air-conditioning internal machine, to divide family energy consumption by described control terminal accurate count.

Wherein, described data acquisition unit comprises:

Central controller MCU;

Controlled by described MCU and be arranged in parallel two temperature sensors, two temperature sensors are separately positioned on air inlet and the air outlet of described VRV air-conditioning internal machine;

The module for metering electric quantity controlled by described MCU, the input of described module for metering electric quantity is connected with metering and selects module, described metering selects model calling to have current sensor and voltage sensor, described metering selects the input of module to be connected directly to described MCU and temperature sensor, and described current sensor and voltage sensor are all connected to described electric energy meter;

The input of described MCU is also connected with valve opening decoder module, for the control signal of the described electric expansion valve of decoding;

Also comprise the communication modulation module controlled by described MCU, be connected to described control terminal by conveying communication modulation module.

Wherein, described communication modulation module is the communication modulation chip of the models such as RS485.

By technique scheme, the VRV air-conditioning energy consumption household metering system that the utility model provides, it has following superior part:

1. by the valve opening decoder module of data acquisition unit, effectively can monitor the electric expansion valve pulse control signal of every platform VRV air-conditioning internal machine, calculate valve opening, and realize VRV air-conditioner host energy consumption apportioning foundation according to cold medium flux ratio;

2. by two temperature sensors of data acquisition unit, can carry out data acquisition to the intake air temperature of every platform VRV air-conditioning internal machine and air outlet temperature, data acquisition unit effectively can distinguish duty and the pattern of VRV air-conditioning internal machine, improves the precision of metering;

3. the electricity of every platform VRV air-conditioning internal machine consumption effectively can be added up by data acquisition unit;

4. to the data acquisition of VRV air-conditioning internal machine by every self complete independently of platform data acquisition unit, without the need to by VRV central air conditioner system internal signal, to VRV central air conditioner system without particular/special requirement, therefore highly versatile, be applicable to the VRV central air conditioner system of all kinds of brand, the difficulty and the cost that effectively reduce central air conditioner system energy consumption household metering drop into.

Accompanying drawing explanation

In order to be illustrated more clearly in the technical scheme in the utility model embodiment, below the accompanying drawing used required in describing embodiment is briefly described.

Fig. 1 is the structural representation of the VRV air-conditioning energy consumption household metering system disclosed in the utility model embodiment;

Fig. 2 is the data acquisition unit structural representation disclosed in the utility model embodiment;

Fig. 3 is the control flow schematic diagram of the VRV air-conditioning energy consumption household metering system disclosed in the utility model embodiment.

Detailed description of the invention

Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the utility model embodiment is clearly and completely described.

With reference to figure 1, the VRV air-conditioning energy consumption household metering system that the utility model provides, comprising: VRV air-conditioner host and control terminal; Electric energy meter is provided with between VRV air-conditioner host and control terminal; Also be arranged in parallel multiple stage VRV air-conditioning internal machine between VRV air-conditioner host and control terminal, between every platform VRV air-conditioning internal machine and VRV air-conditioner host, be provided with electric expansion valve; Data acquisition unit is provided with between every platform VRV air-conditioning internal machine and control terminal, every platform data acquisition unit is all connected to VRV air-conditioning internal machine, electric expansion valve and electric energy meter, for gathering the electric quantity consumption of the pulse control signal of electric expansion valve, the air inlet of VRV air-conditioning internal machine and air outlet temperature and VRV air-conditioning internal machine, to divide family energy consumption by control terminal accurate count.

Wherein, with reference to figure 2, data acquisition unit comprises: central controller MCU; Controlled by MCU and be arranged in parallel two temperature sensors, two temperature sensors are separately positioned on air inlet and the air outlet of VRV air-conditioning internal machine; The module for metering electric quantity controlled by MCU, the input of module for metering electric quantity is connected with metering and selects module, metering selects model calling to have current sensor and voltage sensor, metering selects the input of module to be connected directly to MCU and temperature sensor, and current sensor and voltage sensor are all connected to electric energy meter; The input of MCU is also connected with valve opening decoder module, for the control signal of decoding electronic expansion valve; Also comprise the communication modulation module of the models such as the RS485 controlled by MCU, be connected to control terminal by conveying communication modulation module.

With reference to figure 3, the workflow of the VRV air-conditioning energy consumption household metering system that the utility model provides is:

1. by two temperature sensors of data acquisition unit, respectively data acquisition is carried out to the intake air temperature of every platform VRV air-conditioning internal machine and air outlet temperature, by carrying out temperature difference judgement to intake air temperature and air outlet temperature, have the temperature difference then MCU control metering and select module and module for metering electric quantity to carry out electric energy meter metering, and transfer to MCU after recording corresponding electric quantity data and carry out data storage and transfer to control terminal after carrying out Data Modulation by RS485 communication modulation chip carrying out quantitative statistics and record; If without the temperature difference, then stop electricity record;

2. simultaneously, the pulse control signal from the electric expansion valve of every platform VRV air-conditioning internal machine is accepted by the valve opening decoder module of data acquisition unit, calculate valve opening by MCU and carry out aperture judgement, if there are aperture record aperture data, and carry out data to realize according to cold medium flux ratio carrying out quantitative statistics and record to VRV air-conditioner host energy consumption apportioning according to transferring to control terminal after modulation by RS485 communication modulation chip after carrying out data storage by MCU; If without aperture, then stop electricity record.

The utility model effectively can add up the electricity of every platform VRV air-conditioning internal machine consumption by data acquisition unit, and to the data acquisition of VRV air-conditioning internal machine by every self complete independently of platform data acquisition unit, without the need to by VRV central air conditioner system internal signal, to VRV central air conditioner system without particular/special requirement, therefore highly versatile, be applicable to the VRV central air conditioner system of all kinds of brand, the difficulty and the cost that effectively reduce central air conditioner system energy consumption household metering drop into.

To the above-mentioned explanation of the disclosed embodiments, professional and technical personnel in the field are realized or uses the utility model.To be apparent for those skilled in the art to the multiple amendment of these embodiments, General Principle as defined herein when not departing from spirit or scope of the present utility model, can realize in other embodiments.Therefore, the utility model can not be restricted to these embodiments shown in this article, but will meet the widest scope consistent with principle disclosed herein and features of novelty.

Claims (3)

1. a VRV air-conditioning energy consumption household metering system, comprising:

VRV air-conditioner host and control terminal;

Electric energy meter is provided with between described VRV air-conditioner host and control terminal;

Multiple stage VRV air-conditioning internal machine has also been arranged in parallel, VRV air-conditioning internal machine described in every platform and be provided with electric expansion valve between described VRV air-conditioner host between described VRV air-conditioner host and control terminal;

It is characterized in that, data acquisition unit is provided with between VRV air-conditioning internal machine and described control terminal described in every platform, every platform data acquisition unit is all connected to described VRV air-conditioning internal machine, electric expansion valve and electric energy meter, for gathering the electric quantity consumption of the pulse control signal of described electric expansion valve, the air inlet of described VRV air-conditioning internal machine and air outlet temperature and described VRV air-conditioning internal machine, to divide family energy consumption by described control terminal accurate count.

2. VRV air-conditioning energy consumption household metering system according to claim 1, it is characterized in that, described data acquisition unit comprises:

Central controller MCU;

Controlled by described MCU and be arranged in parallel two temperature sensors, two temperature sensors are separately positioned on air inlet and the air outlet of described VRV air-conditioning internal machine;

The module for metering electric quantity controlled by described MCU, the input of described module for metering electric quantity is connected with metering and selects module, described metering selects module control connection to have current sensor and voltage sensor, described metering selects the input of module to be connected directly to described MCU and temperature sensor, and described current sensor and voltage sensor are all connected to described electric energy meter;

The input of described MCU is also connected with valve opening decoder module, for the control signal of the described electric expansion valve of decoding;

Also comprise the communication modulation module controlled by described MCU, be connected to described control terminal by conveying communication modulation module.

3. VRV air-conditioning energy consumption household metering system according to claim 2, is characterized in that, described communication modulation module is communication modulation chip.