WO2022156632A1

WO2022156632A1 - Method for detecting power consumption of multi-split air conditioner, heat recovery multi-split air conditioner, storage medium, and device

Info

Publication number: WO2022156632A1
Application number: PCT/CN2022/072344
Authority: WO
Inventors: 张宇晟; 丁云霄; 吴敌
Original assignee: 广东美的暖通设备有限公司; 美的集团股份有限公司
Priority date: 2021-01-21
Filing date: 2022-01-17
Publication date: 2022-07-28
Also published as: EP4269894A1; CN112665133A; CN112665133B; US20230366574A1

Abstract

The present application discloses a method for detecting the power consumption of a multi-split air conditioner, a heat recovery multi-split air conditioner, a storage medium, and a device. Compared to the existing means in which only the overall power consumption of a multi-split air conditioner is detected, the present application comprises: acquiring hydraulic module data of a heat recovery multi-split air conditioner, and determining a hydraulic module heat absorption value according to the hydraulic module data; acquiring outdoor unit data, indoor unit data, and power consumption data of the heat recovery multi-split air conditioner; determining, according to the outdoor unit data, the indoor unit data, and the hydraulic module data, the heating capacity of a condenser and the cooling capacity of an evaporator; and determining, according to the hydraulic module heat absorption value, the power consumption data, the heating capacity of the condenser, and the cooling capacity of the evaporator, the power consumption of an indoor unit and the power consumption of a hydraulic module. Therefore, the disadvantage in the existing technology in which the power consumed by each indoor unit and hydraulic module cannot be detected is overcome. Accordingly, the power consumption of each indoor unit and hydraulic module of a heat recovery multi-split air conditioner can be rapidly detected.

Description

Multi-connection power consumption detection method, heat recovery multi-connection, storage medium and device

priority information

This application claims the priority of the Chinese patent application filed on January 21, 2021 with application number 202110086371.6, the entire contents of which are incorporated into this application by reference.

technical field

The present application relates to the technical field of air conditioners, and in particular, to a method for detecting power consumption of multiple circuits, multiple circuits for heat recovery, a storage medium and a device.

Background technique

With the continuous progress of society and the continuous development of science and technology, the application of multi-line as a building HVAC equipment is more and more extensive. Existing heat recovery multi-line systems require high energy consumption due to the need for cooling, heating and hot water supply.

However, the existing power consumption detection system can only detect the overall power consumption of multiple connections, and cannot independently detect the power consumption of each indoor unit and hydraulic module, so that it is impossible to optimize the power consumption of the indoor unit and the hydraulic module respectively. .

The above content is only used to assist the understanding of the technical solutions of the present application, and does not mean that the above content is the prior art.

Application content

The main purpose of the present application is to provide a multi-connection power consumption detection method, heat recovery multi-connection, storage medium and device, aiming at solving the technical problem that the electric power consumed by each indoor unit and hydraulic module cannot be detected in the prior art.

In order to achieve the above object, the present application provides a method for detecting power consumption of multiple connections. The method for detecting power consumption of multiple connections includes the following steps:

Acquiring the hydraulic module data of the heat recovery multi-line, and determining the heat absorption value of the hydraulic module according to the hydraulic module data;

acquiring outdoor unit data, indoor unit data and power consumption data of the heat recovery multi-connection;

Determine the condenser heating capacity and the evaporator cooling capacity according to the outdoor unit data, the indoor unit data and the hydraulic module data; and

The power consumption of the indoor unit and the power consumption of the hydraulic module are determined according to the absorbed heat value of the hydraulic module, the power consumption data, the heating capacity of the condenser and the cooling capacity of the evaporator.

In an embodiment, the step of determining the power consumption of the indoor unit and the power consumption of the hydraulic module according to the value of the heat absorbed by the hydraulic module, the power consumption data, the heating capacity of the condenser and the cooling capacity of the evaporator , including:

obtaining the current working mode of the heat recovery multi-line; and

The power consumption of the indoor unit and the power consumption of the hydraulic module are determined according to the current working mode, the heat value absorbed by the hydraulic module, the power consumption data, the heating capacity of the condenser and the cooling capacity of the evaporator.

In one embodiment, the power consumption and hydraulic power of the indoor unit are determined according to the current working mode, the heat value absorbed by the hydraulic module, the power consumption data, the heating capacity of the condenser and the cooling capacity of the evaporator. The steps of module power consumption include:

When the current working mode of the heat recovery multi-line is a preset main cooling mode, extracting the power consumption data to obtain target power consumption data;

The power consumption of the heating internal unit is determined by the preset first heating internal unit power consumption model according to the absorbed heat value of the hydraulic module, the target power consumption data, the heating capacity of the condenser and the cooling capacity of the evaporator ;

Determine the power consumption of the internal refrigeration unit by presetting the first power consumption model of the internal refrigeration unit according to the heat absorption value of the hydraulic module, the target power consumption data, the heating capacity of the condenser and the cooling capacity of the evaporator;

Determine the power consumption of the hydraulic module by a preset first hydraulic module power consumption model according to the absorbed heat value of the hydraulic module, the heating capacity of the condenser and the cooling capacity of the evaporator; and

The power consumption of the indoor unit is determined according to the power consumption of the heating internal unit and the power consumption of the cooling internal unit.

extracting the power consumption data when the current working mode of the heat recovery multi-line is the preset main heating mode, to obtain first power consumption data and second power consumption data;

The power consumption of the internal heating unit is determined by a preset second power consumption model of the internal heating unit according to the absorbed heat value of the hydraulic module, the first power consumption data, the heating capacity of the condenser and the cooling capacity of the evaporator quantity;

Determine the power consumption of the internal refrigeration unit by a preset second power consumption model of the internal refrigeration unit according to the value of the heat absorbed by the hydraulic module, the first power consumption data, the heating capacity of the condenser and the cooling capacity of the evaporator;

Determined according to the first power consumption data, the second power consumption data, the absorbed heat value of the hydraulic module, the heating capacity of the condenser and the cooling capacity of the evaporator through a preset power consumption model of the second hydraulic module the power consumption of the hydraulic module; and

In an embodiment, the step of acquiring the hydraulic module data of the heat recovery multi-line, and determining the heat absorption value of the hydraulic module according to the hydraulic module data, specifically includes:

Acquiring the hydraulic module data of the heat recovery multi-line, and determining the return air pressure, return air temperature, compressor frequency, compressor displacement, compressor volumetric efficiency and condenser outlet temperature of the hydraulic module according to the hydraulic module data;

Determine the return air density and the return air enthalpy value of the hydraulic module according to the return air pressure and the return air temperature;

determining a hydraulic module circulation flow based on the compressor frequency, the compressor displacement, the compressor volumetric efficiency, and the return air density; and

The cooling-out enthalpy value of the hydraulic module is determined according to the condenser outlet temperature, and the heat absorbed by the hydraulic module is determined according to the cooling-out enthalpy value of the hydraulic module, the circulating flow rate of the hydraulic module and the return air enthalpy value of the hydraulic module.

In an embodiment, the step of determining the heating capacity of the condenser and the cooling capacity of the evaporator according to the outdoor unit data, the indoor unit data and the hydraulic module data specifically includes:

Determine the average enthalpy value of the condenser inlet, the average enthalpy value of the condenser outlet, the average enthalpy value of the evaporator outlet and the enthalpy value of the evaporator inlet according to the outdoor unit data, the indoor unit data and the hydraulic module data;

extracting the outdoor unit data to obtain the compressor circulation flow of the outdoor unit;

Determine the condenser heating capacity according to the compressor circulation flow, the condenser inlet average enthalpy value, and the condenser outlet average enthalpy value; and

The cooling capacity of the evaporator is determined according to the circulating flow of the compressor, the average enthalpy value of the evaporator outlet, and the enthalpy value of the evaporator inlet.

In an embodiment, the average enthalpy value of the condenser inlet, the average enthalpy value of the condenser outlet, the average enthalpy value of the evaporator outlet, and the average enthalpy value of the evaporator are determined according to the data of the outdoor unit, the data of the indoor unit, and the data of the hydraulic module. The steps of the inlet enthalpy value include:

Extracting the outdoor unit data to obtain the compressor discharge pressure of the outdoor unit, the compressor return air pressure, the inlet temperature of the external heat exchanger and the outlet temperature of the external heat exchanger;

Extracting the indoor unit data to obtain the inlet temperature of the heat exchanger of the heating inner unit, the outlet temperature of the heating inner unit and the outlet temperature of the cooling inner unit;

Extracting the hydraulic module data to obtain the inlet temperature of the hydraulic module heat exchanger and the outlet temperature of the hydraulic module heat exchanger;

Determine the average enthalpy value of the condenser inlet according to the inlet temperature of the hydraulic module heat exchanger, the inlet temperature of the heating internal heat exchanger, the inlet temperature of the outer heat exchanger, and the exhaust pressure of the compressor;

The average enthalpy value of the condenser outlet is determined according to the outlet temperature of the hydraulic module heat exchanger, the outlet temperature of the heating inner unit and the outlet temperature of the outer heat exchanger, and the average enthalpy value of the condenser outlet is used as the inlet enthalpy value of the evaporator ;as well as

The average enthalpy value of the evaporator outlet is determined according to the outlet temperature of the refrigerator and the return air pressure of the compressor.

In addition, in order to achieve the above object, the present application also proposes a heat recovery multi-line, the heat recovery multi-line includes a memory, a processor, and a multi-line power consumption stored on the memory and running on the processor A power consumption detection program, the multi-connection power consumption detection program is configured to implement the steps of the multi-connection power consumption detection method as described above.

In addition, in order to achieve the above object, the present application also proposes a storage medium, where a multi-line power consumption detection program is stored on the storage medium, and the multi-line power consumption detection program is executed as described above when the multi-line power consumption detection program is executed. The steps of the multi-connection power consumption detection method.

In addition, in order to achieve the above purpose, the present application also proposes a multi-line power consumption detection device, the multi-line power consumption detection device includes: a determination module, an acquisition module and a detection module;

The determining module is used to obtain the hydraulic module data of the heat recovery multi-line, and determine the absorbed heat value of the hydraulic module according to the hydraulic module data;

the obtaining module, configured to obtain the outdoor unit data, indoor unit data and power consumption data of the heat recovery multi-connection;

The determining module is further configured to determine the heating capacity of the condenser and the cooling capacity of the evaporator according to the outdoor unit data, the indoor unit data and the hydraulic module data;

The detection module is configured to determine the power consumption of the indoor unit and the power consumption of the hydraulic module according to the heat absorption value of the hydraulic module, the power consumption data, the heating capacity of the condenser and the cooling capacity of the evaporator.

In the present application, it is disclosed to obtain the hydraulic module data of the heat recovery multi-connection, determine the heat absorption value of the hydraulic module according to the hydraulic module data, obtain the outdoor unit data, indoor unit data and power consumption data of the heat recovery multi-connection, according to the outdoor unit data. , indoor unit data and hydraulic module data to determine the heating capacity of the condenser and the cooling capacity of the evaporator, and determine the power consumption of the indoor unit and the power consumption of the hydraulic module according to the absorbed heat value of the hydraulic module, power consumption data, the heating capacity of the condenser and the cooling capacity of the evaporator Compared with the existing method of only detecting the overall power consumption of multiple connections, the power consumption of the indoor unit can be determined according to the calorific value absorbed by the hydraulic module, the power consumption data, the heating capacity of the condenser and the cooling capacity of the evaporator. The power consumption of each indoor unit and hydraulic module in the prior art is overcome, and the power consumption of each indoor unit and hydraulic module with multiple heat recovery connections can be quickly detected.

Description of drawings

FIG. 1 is a schematic structural diagram of a heat recovery multi-connection of the hardware operating environment involved in the solution of the embodiment of the present application;

FIG. 2 is a schematic flowchart of a first embodiment of a method for detecting power consumption of multiple connections according to the present application;

FIG. 3 is a schematic diagram of a power consumption detection system of a heat recovery multi-connection according to an embodiment of a multi-connection power consumption detection method of the present application;

FIG. 4 is a schematic flowchart of a second embodiment of a method for detecting power consumption of multiple connections according to the present application;

FIG. 5 is a schematic diagram of a system cycle in which only the high-temperature hydraulic module is turned on according to an embodiment of the multi-connection power consumption detection method of the present application;

6 is a schematic flowchart of a third embodiment of a method for detecting power consumption of multiple connections according to the present application;

FIG. 7 is a schematic diagram of a heat recovery multi-connection system operating in a main cooling mode according to an embodiment of a multi-connection power consumption detection method of the present application;

FIG. 8 is a schematic flowchart of a fourth embodiment of a method for detecting power consumption of multiple connections according to the present application;

9 is a schematic diagram of a heat recovery multi-line system operating in a main heating mode according to an embodiment of a method for detecting power consumption of multiple lines of the present application;

FIG. 10 is a structural block diagram of the first embodiment of the multi-connection power consumption detection apparatus of the present application.

Description of reference numbers:

The realization, functional characteristics and advantages of the purpose of the present application will be further described with reference to the accompanying drawings in conjunction with the embodiments.

Detailed ways

It should be understood that the specific embodiments described herein are only used to explain the present application, but not to limit the present application.

Referring to FIG. 1 , FIG. 1 is a schematic structural diagram of a heat recovery multi-line structure of the hardware operating environment involved in the solution of the embodiment of the present application.

As shown in FIG. 1 , the heat recovery multi-line may include: a processor 1001 , such as a central processing unit (Central Processing Unit, CPU), a communication bus 1002 , a user interface 1003 , a network interface 1004 , and a memory 1005 . Among them, the communication bus 1002 is used to realize the connection communication between these components. The user interface 1003 may include a display screen (Display), and the optional user interface 1003 may also include a standard wired interface and a wireless interface, and the wired interface for the user interface 1003 may be a USB interface in this application. Optionally, the network interface 1004 may include a standard wired interface and a wireless interface (such as a wireless fidelity (WIreless-FIdelity, WI-FI) interface). The memory 1005 can be a high-speed random access memory (Random Access Memory, RAM) memory, or can be a stable memory (Non-volatile Memory, NVM), such as a disk memory. Optionally, the memory 1005 may also be a storage device independent of the aforementioned processor 1001 .

Those skilled in the art can understand that the structure shown in FIG. 1 does not constitute a limitation on the heat recovery multi-line, and may include more or less components than shown, or combine some components, or arrange different components.

As shown in FIG. 1 , the memory 1005 identified as a computer storage medium may include an operating system, a network communication module, a user interface module, and a multi-line power consumption detection program.

In the heat recovery multi-connection shown in FIG. 1 , the network interface 1004 is mainly used to connect to the background server and perform data communication with the background server; the user interface 1003 is mainly used to connect the user equipment; the heat recovery multi-connection passes through the processor 1001 calls the multi-connection power consumption detection program stored in the memory 1005, and executes the multi-connection power consumption detection method provided by the embodiment of the present application.

Based on the above hardware structure, an embodiment of the multi-connection power consumption detection method of the present application is proposed.

Referring to FIG. 2 , FIG. 2 is a schematic flowchart of a first embodiment of a method for detecting power consumption of multiple connections according to the present application, and a first embodiment of the method for detecting power consumption of multiple connections in the present application is proposed.

Step S10: Acquire the data of the hydraulic module of the heat recovery multi-connection, and determine the heat absorption value of the hydraulic module according to the data of the hydraulic module.

It should be understood that the execution subject of this embodiment is the heat recovery multi-line, which is not limited in this embodiment.

It should be noted that the hydraulic module data may include return air pressure, return air temperature, compressor frequency, compressor displacement, compressor volumetric efficiency, and condenser outlet temperature of the hydraulic module, which are not limited in this embodiment.

It can be understood that obtaining the data of the hydraulic module of the multi-connection heat recovery may be to obtain the data of the hydraulic module of the multi-connected heat recovery through a preset sensor arranged on the hydraulic module, wherein the preset sensor can be obtained by the manufacturer of the multi-connected heat recovery. It is preset, which is not limited in this embodiment.

It should be understood that, determining the heat absorption value of the hydraulic module according to the hydraulic module data may be determining the heat absorption value of the hydraulic module through a preset heat absorption model according to the hydraulic module data. The preset heat absorption model may be preset by the manufacturer of the heat recovery multi-line, which is not limited in this embodiment.

Further, in order to improve the accuracy and reliability of the hydraulic module absorbing the heat of the external machine, the obtaining of the hydraulic module data of the heat recovery multi-line, and determining the absorbed heat value of the hydraulic module according to the hydraulic module data, including:

Obtain the hydraulic module data of the heat recovery multi-line, and determine the return air pressure, return air temperature, compressor frequency, compressor displacement, compressor volumetric efficiency and condenser outlet temperature of the hydraulic module according to the hydraulic module data. The return air pressure and the return air temperature determine the return air density and the return air enthalpy value of the hydraulic module, and determine the hydraulic power according to the compressor frequency, the compressor displacement, the compressor volumetric efficiency and the return air density module circulation flow, determine the cooling-out enthalpy value of the hydraulic module according to the outlet temperature of the condenser, and determine the cooling-out enthalpy value of the hydraulic module, the circulation flow rate of the hydraulic module, and the return air enthalpy value of the hydraulic module to determine the absorption external enthalpy value of the hydraulic module. machine heat.

Step S20: Acquire the outdoor unit data, indoor unit data and power consumption data of the heat recovery multi-connection.

It should be noted that the outdoor unit data may include the compressor discharge pressure of the outdoor unit, the compressor return air pressure, the inlet temperature of the external heat exchanger, and the outlet temperature of the external heat exchanger, etc., which are not limited in this embodiment; The indoor unit data may be data such as the inlet temperature of the heating inner unit heat exchanger, the outlet temperature of the heating inner unit, and the outlet temperature of the cooling inner unit, which are not limited in this embodiment; the power consumption data may include the first power consumption data and The second power consumption data, wherein the first power consumption data may be the power consumption data of the outdoor unit, and the second power consumption data may be the power consumption data of the hydraulic module, which is not limited in this embodiment.

In a specific implementation, for ease of understanding, description is made with reference to FIG. 3 . Figure 3 is a schematic diagram of the power consumption detection system of the heat recovery multi-line, wherein 1 is the outdoor unit of the heat recovery multi-line, 2 is the refrigerant switching device of the heat recovery multi-line, 3 is the indoor unit of the heat recovery multi-line, 4 is the heat recovery multi-line indoor unit. In the hydraulic module, 5 is the electricity meter 1, 6 is the electricity meter 2, the electricity meter 1 is used to measure the power consumption data of the outdoor unit, and the electricity meter 2 is used to measure the electricity consumption data of the hydraulic module.

Step S30: Determine the heating capacity of the condenser and the cooling capacity of the evaporator according to the outdoor unit data, the indoor unit data and the hydraulic module data.

It should be noted that the heating capacity of the condenser can be used to represent the total condensing capacity. When the heat recovery multi-line is in the main cooling mode, the total condensing capacity includes the capacity of the outdoor unit heat exchanger, the heating capacity of the indoor unit, and the capacity of the hydraulic module to absorb external heat. When the heat recovery multi-line is in the main heating mode, the total condensing capacity includes the heating capacity of the indoor unit and the water power module to absorb the heat of the outdoor unit. The total condensing capacity is represented by Q _h in this and other embodiments.

The evaporator cooling capacity can be used to represent the total evaporation capacity. When the heat recovery multi-line is in the main cooling mode, the total evaporation capacity includes the total capacity of the cooling internal unit; when the heat recovery multi-line is in the main heating mode, the total evaporation capacity includes The total capacity of the cooling indoor unit and the heat exchanger capacity of the outdoor unit. The total evaporation capacity is represented by Q _c in this and other embodiments.

It should be understood that determining the heating capacity of the condenser and the cooling capacity of the evaporator according to the outdoor unit data, the indoor unit data and the hydraulic module data may be based on the outdoor unit data, the indoor unit data and the The hydraulic module data determines the average enthalpy value of the condenser inlet, the average enthalpy value of the condenser outlet, the average enthalpy value of the evaporator outlet, and the enthalpy value of the evaporator inlet, and extracts the outdoor unit data to obtain the compressor circulation flow of the outdoor unit. The compressor circulation flow rate, the average enthalpy value of the condenser inlet and the average enthalpy value of the condenser outlet determine the heating capacity of the condenser, according to the compressor circulation flow rate, the average enthalpy value of the evaporator outlet and the evaporator inlet The enthalpy value determines the cooling capacity of the evaporator.

Step S40: Determine the power consumption of the indoor unit and the power consumption of the hydraulic module according to the heat absorption value of the hydraulic module, the power consumption data, the heating capacity of the condenser and the cooling capacity of the evaporator.

It should be understood that determining the power consumption of the indoor unit and the power consumption of the hydraulic module according to the value of the heat absorbed by the hydraulic module, the power consumption data, the heating capacity of the condenser and the cooling capacity of the evaporator can be obtained by obtaining the power consumption of the indoor unit and the power consumption of the hydraulic module. The current working mode of the heat recovery multi-line, according to the current working mode, the absorbed heat value of the hydraulic module, the power consumption data, the heating capacity of the condenser and the cooling capacity of the evaporator to determine the power consumption of the indoor unit and The power consumption of the hydraulic module.

It can be understood that the power consumption of the indoor unit and the power consumption of the hydraulic module are determined according to the current working mode, the heat value absorbed by the hydraulic module, the power consumption data, the heating capacity of the condenser and the cooling capacity of the evaporator. The amount of electricity can be obtained by extracting the power consumption data when the current working mode of the heat recovery multi-line is the preset main cooling mode to obtain target power consumption data, and according to the calorific value absorbed by the hydraulic module, the target power consumption The electricity data, the heating capacity of the condenser and the cooling capacity of the evaporator are determined by the preset first heating internal unit power consumption model, and the power consumption of the heating internal unit is determined according to the heat absorption value of the hydraulic module, the target The power consumption data, the heating capacity of the condenser and the cooling capacity of the evaporator are determined by the preset first power consumption model of the internal cooling unit to determine the power consumption of the internal cooling unit. The heating capacity and the cooling capacity of the evaporator are determined by the preset first hydraulic module power consumption model to determine the power consumption of the hydraulic module, and the power consumption of the indoor unit is determined according to the power consumption of the heating internal unit and the power consumption of the cooling internal unit. power;

It can also be that when the current working mode of the heat recovery multi-line is the preset main heating mode, the power consumption data is extracted to obtain the first power consumption data and the second power consumption data, according to the hydraulic module. The absorbed calorific value, the first power consumption data, the heating capacity of the condenser and the cooling capacity of the evaporator determine the power consumption of the internal heating unit by using a preset second power consumption model of the internal heating unit, and according to the The calorific value absorbed by the hydraulic module, the first power consumption data, the heating capacity of the condenser, and the cooling capacity of the evaporator determine the power consumption of the internal cooling unit by using a preset second power consumption model of the internal cooling unit, and according to the The first power consumption data, the second power consumption data, the value of the heat absorbed by the hydraulic module, the heating capacity of the condenser, and the cooling capacity of the evaporator are determined by using a preset power consumption model of the second hydraulic module to determine the power consumption of the hydraulic module. The power consumption of the indoor unit is determined according to the power consumption of the heating indoor unit and the power consumption of the cooling indoor unit.

In the first embodiment, it is disclosed to obtain the hydraulic module data of the heat recovery multi-connection, and determine the absorbed heat value of the hydraulic module according to the hydraulic module data, and obtain the outdoor unit data, indoor unit data and power consumption data of the heat recovery multi-connection. The outdoor unit data, indoor unit data, and hydraulic module data determine the heating capacity of the condenser and the cooling capacity of the evaporator, and determine the power consumption and hydraulic capacity of the indoor unit according to the heat absorption value of the hydraulic module, power consumption data, the heating capacity of the condenser, and the cooling capacity of the evaporator. Module power consumption; compared with the existing method of only detecting the overall power consumption of multiple connections, this embodiment can be determined according to the calorific value absorbed by the hydraulic module, the power consumption data, the heating capacity of the condenser and the cooling capacity of the evaporator The power consumption of the indoor unit and the power consumption of the hydraulic module overcomes the defect in the prior art that the power consumption of each indoor unit and the hydraulic module cannot be detected, and thus can quickly detect the power consumption of each indoor unit and the hydraulic module with multiple heat recovery connections. power consumption.

Referring to FIG. 4 , FIG. 4 is a schematic flowchart of the second embodiment of the method for detecting power consumption of multiple connections according to the present application. Based on the first embodiment shown in FIG. 2 above, a second embodiment of the method for detecting power consumption of multiple connections in the present application is proposed. example.

In the second embodiment, the step S10 includes:

Step S101: Acquire the hydraulic module data of the heat recovery multi-line, and determine the return air pressure, return air temperature, compressor frequency, compressor displacement, compressor volume efficiency and condenser outlet temperature of the hydraulic module according to the hydraulic module data .

It should be noted that the water conservancy module data may include return air pressure, return air temperature, compressor frequency, compressor displacement, compressor volumetric efficiency, and condenser outlet temperature of the hydraulic module, which are not limited in this embodiment.

Step S102: Determine the return air density and the return air enthalpy value of the hydraulic module according to the return air pressure and the return air temperature.

It should be understood that, since the hydraulic module is in a single-phase region when the hydraulic module returns air, the return air enthalpy value of the hydraulic module can be directly determined according to the return air pressure and return air temperature of the hydraulic module.

Step S103: Determine the circulating flow rate of the hydraulic module according to the compressor frequency, the compressor displacement, the compressor volumetric efficiency, and the return air density.

It can be understood that, determining the circulating flow rate of the hydraulic module according to the compressor frequency, compressor displacement, compressor volumetric efficiency and return air density can be determined by pre-determining the compressor frequency, compressor displacement, compressor volumetric efficiency and return air density. It is assumed that the flow model determines the circulating flow of the hydraulic module, wherein the preset flow model may be preset by the manufacturer of the heat recovery multi-line, which is not limited in this embodiment.

Step S104: Determine the cooling-out enthalpy value of the hydraulic module according to the condenser outlet temperature, and determine the hydraulic module absorbs the external machine according to the cooling-out enthalpy value of the hydraulic module, the circulation flow rate of the hydraulic module, and the return air enthalpy value of the hydraulic module heat.

It should be understood that, since the refrigerant is in a liquid state when the hydraulic module is returning air, the cooling-out enthalpy value of the hydraulic module can be directly determined according to the outlet temperature of the condenser.

It can be understood that, according to the cooling enthalpy value of the hydraulic module, the circulating flow of the hydraulic module and the enthalpy value of the return air of the hydraulic module, the heat absorbed by the hydraulic module of the external machine can be determined as the heat absorbed by the hydraulic module of the external machine = the circulating flow of the hydraulic module * (the return air of the hydraulic module. Enthalpy - Hydraulic module cooling out enthalpy). In this embodiment and other embodiments, Q _hydraulic is used to indicate that the hydraulic module absorbs the heat of the external machine.

In the second embodiment, the hydraulic module data of the heat recovery multi-line is obtained, and the return air pressure, return air temperature, compressor frequency, compressor displacement, and compressor volumetric efficiency of the hydraulic module are determined according to the hydraulic module data. and the condenser outlet temperature, according to the return air pressure and the return air temperature to determine the return air density and the return air enthalpy value of the hydraulic module, according to the compressor frequency, the compressor displacement, the compressor volumetric efficiency And the return air density determines the circulating flow rate of the hydraulic module, determines the cooling-out enthalpy value of the hydraulic module according to the condenser outlet temperature, and determines the cooling-out enthalpy value of the hydraulic module, the circulation flow rate of the hydraulic module and the return flow of the hydraulic module. The enthalpy value determines that the hydraulic module absorbs the heat of the external machine, so that the accuracy and reliability of the hydraulic module absorbing the heat of the external machine can be improved.

In the second embodiment, the step S30 includes:

Step S301: Determine the average enthalpy value of the condenser inlet, the average enthalpy value of the condenser outlet, the average enthalpy value of the evaporator outlet, and the enthalpy value of the evaporator inlet according to the outdoor unit data, the indoor unit data and the hydraulic module data.

It should be understood that determining the average enthalpy value of the condenser inlet, the average enthalpy value of the condenser outlet, the average enthalpy value of the evaporator outlet and the enthalpy value of the evaporator inlet according to the outdoor unit data, the indoor unit data and the hydraulic module data may be based on the outdoor unit data. , indoor unit data and hydraulic module data to determine the average enthalpy value of the condenser inlet, the average enthalpy value of the condenser outlet, the average enthalpy value of the evaporator outlet and the enthalpy value of the evaporator inlet through the preset enthalpy value model. Wherein, the preset enthalpy model may be preset by the manufacturer of the heat recovery multi-line, which is not limited in this embodiment.

Further, in order to improve the accuracy of the enthalpy value, the step S301 includes:

The average enthalpy value of the condenser outlet is determined according to the outlet temperature of the hydraulic module heat exchanger, the outlet temperature of the heating inner unit and the outlet temperature of the outer heat exchanger, and the average enthalpy value of the condenser outlet is used as the inlet enthalpy value of the evaporator ;

It should be noted that the compressor discharge pressure is the system high pressure value, and the compressor return air pressure is the system low pressure value, which is not limited in this embodiment.

It should be understood that determining the average enthalpy value of the condenser inlet according to the inlet temperature of the hydraulic module heat exchanger, the inlet temperature of the heating inner heat exchanger, the inlet temperature of the outer heat exchanger and the compressor discharge pressure may be based on the heat exchange of the hydraulic module. The inlet enthalpy value of each condenser component is determined by the inlet temperature of the condenser, the inlet temperature of the heating inner heat exchanger, the inlet temperature of the outer heat exchanger and the exhaust pressure of the compressor, and the average enthalpy of the condenser inlet is determined according to the inlet enthalpy value of each condenser component. value.

It can be understood that determining the average enthalpy value of the condenser outlet according to the outlet temperature of the hydraulic module heat exchanger, the outlet temperature of the heating inner unit and the outlet temperature of the outer heat exchanger can be based on the outlet temperature of the hydraulic module heat exchanger, the outlet temperature of the heating inner unit The temperature and the outlet temperature of the external heat exchanger determine the outlet enthalpy value of each condenser part, and the average enthalpy value of the condenser outlet is determined according to the outlet enthalpy value of each condenser part.

Step S302: Extract the outdoor unit data to obtain the compressor circulation flow of the outdoor unit.

It should be understood that, extracting the outdoor unit data to obtain the compressor circulation flow of the outdoor unit may be to extract the outdoor data by identification, obtain the data identification, and determine the compressor circulation flow of the outdoor unit according to the data identification. The data identifier may be an identity identifier set for the outdoor unit data when the outdoor unit data is stored, which is not limited in this example.

Step S303: Determine the heating capacity of the condenser according to the circulating flow of the compressor, the average enthalpy value of the condenser inlet, and the average enthalpy value of the condenser outlet.

It should be understood that, according to the compressor circulation flow rate, the average enthalpy value of the condenser inlet and the average enthalpy value of the condenser outlet, the heating capacity of the condenser can be determined as the total condensing capacity Q _h = the compressor circulation flow rate * (the average enthalpy value of the condenser inlet - average enthalpy of condenser outlet).

Step S304: Determine the cooling capacity of the evaporator according to the circulating flow of the compressor, the average enthalpy value at the outlet of the evaporator, and the enthalpy value at the inlet of the evaporator.

It should be noted that the cooling capacity of the evaporator can be used to represent the total evaporation capacity. When the heat recovery multi-line is in the main cooling mode, the total evaporation capacity includes the total capacity of the cooling internal unit; when the heat recovery multi-line is in the main heating mode , the total evaporative capacity includes the total capacity of the cooling indoor unit and the heat exchanger capacity of the outdoor unit. The total evaporation capacity is represented by Q _c in this and other embodiments.

It can be understood that the cooling capacity of the evaporator can be determined according to the compressor circulation flow, the average _enthalpy value of the evaporator outlet and the enthalpy value of the evaporator inlet. inlet enthalpy).

In the second embodiment, the average enthalpy value of the condenser inlet, the average enthalpy value of the condenser outlet, the average enthalpy value of the evaporator outlet, and the evaporator are determined according to the outdoor unit data, the indoor unit data, and the hydraulic module data. Inlet enthalpy value, extract the outdoor unit data, obtain the compressor circulation flow of the outdoor unit, and determine the condenser heating amount according to the compressor circulation flow, the condenser inlet average enthalpy value and the condenser outlet average enthalpy value , the evaporator cooling capacity is determined according to the compressor circulation flow, the evaporator outlet average enthalpy value and the evaporator inlet enthalpy value, so that the accuracy of the condenser heating capacity and the evaporator cooling capacity can be improved.

In the second embodiment, the step S40 includes:

Step S401: Obtain the current working mode of the heat recovery multi-line.

It should be noted that, the working mode of the heat recovery multi-line may include a preset only hydraulic module mode, a preset main cooling mode, and a preset main heating mode, etc., which are not limited in this example. Among them, the default mode of only opening the hydraulic module can be the working mode when the hydraulic module with multiple connections of heat recovery is turned on, and the indoor unit is not turned on; And the working mode when the outdoor unit heat exchanger is a condenser; the preset main heating mode can be the working mode when the indoor unit and the high-temperature hydraulic module with heat recovery multi-line are turned on at the same time and the outdoor unit heat exchanger is an evaporator.

In a specific implementation, for ease of understanding, description is made with reference to FIG. 5 . Figure 5 is a schematic diagram of the system cycle when only the high temperature hydraulic module is turned on, wherein 1 is the outdoor unit of the heat recovery multi-line system, 2 is the refrigerant switching device, 3 is the indoor unit of the heat recovery multi-line system, and 4 is the high temperature hydraulic module. The outdoor unit contains 11 as a compressor, 12 and 13 as a four-way valve, 12 is used to switch the state of the external heat exchanger 14, switch the external heat exchanger 14 to be an evaporator or a condenser, and the function of 13 is to switch the high pressure The state of the gas pipe, 14 is the external heat exchanger, 15 is the electronic expansion valve of the main circuit of the outdoor unit, 16 is the economizer, 17 is the electronic expansion valve of the auxiliary circuit of the economizer, 18 is the liquid pipe stop valve, 19 is the high pressure gas pipe stop valve, 110 It is a low-pressure gas pipe stop valve, and 111 is a low-pressure tank. 21 and 23 are the heating solenoid valves of the refrigerant switching device, and 22 and 24 are the cooling solenoid valves of the refrigerant switching device. 31 is an indoor unit electronic expansion valve, and 32 is an indoor unit heat exchanger. 41 is the compressor of the hydraulic module, 42 is the condenser of the hydraulic module, which is the refrigerant and water heat exchange of the hydraulic module, 43 is the electronic expansion valve 1 of the hydraulic module, and 44 is the evaporator of the hydraulic module, which is the internal refrigerant of the hydraulic module and the external unit. Heat, 45 is the hydraulic module electronic expansion valve 2, which controls the refrigerant flow from the external machine into the hydraulic module.

At this time, the circulation of the outer refrigerant R410a only passes through the high temperature hydraulic module, and the high temperature hydraulic module absorbs the heat of the refrigerant R410a of the external unit and then heats the water through the circulation of the refrigerant R134a. Meter 2 is the power consumption of the hydraulic module itself, and meter 1 is the power consumption of the outdoor unit. At this time, the outdoor unit is only used to operate the high-temperature hydraulic module. Therefore, the electricity of meter 1 is consumed by the hydraulic module. The power consumption of the hydraulic module is summed up.

Step S402: Determine the power consumption of the indoor unit and the power consumption of the hydraulic module according to the current working mode, the heat value absorbed by the hydraulic module, the power consumption data, the heating capacity of the condenser and the cooling capacity of the evaporator.

It should be understood that the power consumption of the indoor unit and the power consumption of the hydraulic module are determined according to the current working mode, the heat value absorbed by the hydraulic module, the power consumption data, the heating capacity of the condenser and the cooling capacity of the evaporator. The amount of electricity can be obtained by extracting the power consumption data when the current working mode of the heat recovery multi-line is the preset main cooling mode to obtain target power consumption data, and according to the calorific value absorbed by the hydraulic module, the target power consumption The electricity data, the heating capacity of the condenser and the cooling capacity of the evaporator are determined by the preset first heating internal unit power consumption model, and the power consumption of the heating internal unit is determined according to the heat absorption value of the hydraulic module, the target The power consumption data, the heating capacity of the condenser and the cooling capacity of the evaporator are determined by the preset first power consumption model of the internal cooling unit to determine the power consumption of the internal cooling unit. The heating capacity and the cooling capacity of the evaporator are determined by the preset first hydraulic module power consumption model to determine the power consumption of the hydraulic module, and the power consumption of the indoor unit is determined according to the power consumption of the heating internal unit and the power consumption of the cooling internal unit. power;

In the second embodiment, by acquiring the current working mode of the heat recovery multi-line, according to the current working mode, the heat value absorbed by the hydraulic module, the power consumption data, the heating capacity of the condenser, and the The cooling capacity of the evaporator determines the power consumption of the indoor unit and the power consumption of the hydraulic module, so that the power consumption of the indoor unit and the power consumption of the hydraulic module can be quickly determined.

Referring to FIG. 6 , FIG. 6 is a schematic flowchart of the third embodiment of the method for detecting power consumption of multiple connections according to the present application. Based on the second embodiment shown in FIG. 4 above, a third embodiment of the method for detecting power consumption of multiple connections according to the present application is proposed. example.

In the third embodiment, the step S402 includes:

Step S4021: When the current working mode of the heat recovery multi-line is a preset main cooling mode, extract the power consumption data to obtain target power consumption data.

In a specific implementation, for ease of understanding, description is made with reference to FIG. 7 . Figure 7 is a schematic diagram of the heat recovery multi-line system operating in the main cooling mode. When the current working mode is the main cooling mode, the indoor unit and the high-temperature hydraulic module are turned on at the same time, and the heat exchanger of the outdoor unit is a condenser. At this time, the R410a of the outdoor unit The refrigerant condenses and releases heat in the external heat exchanger, the heating indoor unit and the high-temperature hydraulic module, condenses into a liquid refrigerant, and then enters the cooling indoor unit to evaporate and return to the compressor for recirculation. At this time, the hydraulic module absorbs the heat of the R410a refrigerant of the outdoor unit. , and then go through a R134a cycle, exchange heat with water and condense, and release heat to make hot water. At this time, for the user side, the refrigerant of the outdoor unit circulates through the high-temperature hydraulic module, heating the indoor unit and cooling the indoor unit. Therefore, calculating the power consumption ratio of each part requires calculating the capacity ratio of each part.

In a specific implementation, the target power consumption data may be the measurement data of the electric meter 1, which is not limited in this example.

Step S4022: Determine the internal heating unit according to the calorific value absorbed by the hydraulic module, the target power consumption data, the heating capacity of the condenser, and the cooling capacity of the evaporator through a preset first heating internal unit power consumption model power consumption.

It should be noted that the power consumption of the heating internal unit may be the power consumption of the i-th heating internal unit with multiple heat recovery connections, where i may be preset by the user, which is not limited in this embodiment.

It should be understood that the preset first heating internal unit power consumption model may be as follows:

In the formula, I _{i heating} is the power consumption of the i-th internal heating unit, j~j+n is the time period for detecting power consumption, K _i is the heat transfer coefficient of the i-th internal heating unit, A _i is the heat exchange area of the i-th heating internal unit, T _1i is the high pressure saturation temperature, K is the heat exchange coefficient of the outdoor unit, A is the heat exchange area of the outdoor unit, T ₄ is the ambient temperature of the outdoor unit, Q _hydraulic Absorb the heat of the external machine for the hydraulic module, Q _h is the total condensation capacity, that is, the heating capacity of the condenser, Q _c is the total evaporation capacity, that is, the cooling capacity of the evaporator, and M _i1 is the target power consumption data.

It should be noted that the heat exchange coefficient and heat exchange area of the heating internal unit can be obtained from the data of the indoor unit; the heat transfer coefficient, heat exchange area and ambient temperature of the outdoor unit can be obtained from the data of the outdoor unit, which is not included in this example. limit.

Step S4023: Determine the power consumption of the internal refrigeration unit by presetting the power consumption model of the first internal refrigeration unit according to the calorific value absorbed by the hydraulic module, the target power consumption data, the heating capacity of the condenser and the cooling capacity of the evaporator. quantity.

It should be noted that the power consumption of the internal refrigeration unit may be the power consumption of the kth internal refrigeration unit with multiple heat recovery connections, where k may be preset by the user, which is not limited in this embodiment.

It should be understood that the preset first refrigerator internal unit power consumption model may be as follows:

In the formula, I _{k cooling} is the power consumption of the kth refrigerating indoor unit, j～j+n is the time period for detecting the power consumption, cvk is the flow coefficient of the kth indoor unit, and K _i is the ith system. The heat transfer coefficient of the heat internal unit, A _i is the heat transfer area of the i-th heating internal unit, T _1i is the high pressure saturation temperature, K is the heat transfer coefficient of the outdoor unit, A is the heat transfer area of the outdoor unit, T ₄ is the ambient temperature of the outdoor unit, Q _hydraulic is the heat absorbed by the hydraulic module of the outdoor unit, Q _h is the total condensing capacity, that is, the heating capacity of the condenser, Q _c is the total evaporating capacity, that is, the cooling capacity of the evaporator, M _i1 is the target consumption electrical data.

Step S4024: Determine the power consumption of the hydraulic module by using a preset power consumption model of the first hydraulic module according to the heat absorption value of the hydraulic module, the heating capacity of the condenser and the cooling capacity of the evaporator.

It can be understood that the preset power consumption model of the first hydraulic module can be as follows:

In the formula, I _hydraulic is the power consumption of the hydraulic module, j~j+n is the time period for detecting power consumption, K _i is the heat transfer coefficient of the i-th heating internal unit, and A _i is the i-th heating unit The heat exchange area of the indoor unit, T _1i is the high pressure saturation temperature, K is the heat transfer coefficient of the outdoor unit, A is the heat exchange area of the outdoor unit, T ₄ is the ambient temperature of the outdoor unit, and Q _hydraulic is the heat absorbed by the hydraulic module of the outdoor unit , Q _h is the total condensing capacity, that is, the heating capacity of the condenser, Q _c is the total evaporating capacity, that is, the cooling capacity of the evaporator, and M _i1 is the target power consumption data.

Step S4025: Determine the power consumption of the indoor unit according to the power consumption of the heating indoor unit and the power consumption of the cooling indoor unit.

It should be noted that the power consumption of the indoor unit can be the sum of the power consumption of the i-th heating indoor unit and the power consumption of the k-th cooling indoor unit, or it can be the sum of the power consumption of all heating indoor units and all The sum of the power consumption of the cooling unit.

In the third embodiment, the target power consumption data is obtained by extracting the power consumption data when the current working mode of the heat recovery multi-line is the preset main cooling mode, and the absorption heat value of the hydraulic module is based on the hydraulic module. , the target power consumption data, the heating capacity of the condenser and the cooling capacity of the evaporator determine the power consumption of the heating internal unit through the preset first heating internal unit power consumption model, and absorb the heat according to the hydraulic module value, the target power consumption data, the heating capacity of the condenser and the refrigerating capacity of the evaporator are determined by the preset first power consumption model of the internal cooling unit to determine the power consumption of the internal cooling unit, according to the value of the heat absorbed by the hydraulic module , The heating capacity of the condenser and the cooling capacity of the evaporator are determined by the preset first hydraulic module power consumption model, and the power consumption of the hydraulic module is determined according to the power consumption of the heating internal unit and the power consumption of the cooling internal unit. The power consumption of the indoor unit can be determined by the power consumption of the indoor unit, so that when the current working mode of the heat recovery multi-line is the preset main cooling mode, the power consumption of each heating indoor unit, cooling indoor unit and hydraulic module can be calculated separately, thereby improving the The accuracy of power consumption detection of indoor units and hydraulic modules.

Referring to FIG. 8, FIG. 8 is a schematic flowchart of the fourth embodiment of the method for detecting power consumption of multiple connections according to the present application. Based on the second embodiment shown in FIG. 4, a fourth embodiment of the method for detecting power consumption of multiple connections according to the present application is proposed. example.

In the fourth embodiment, the step S402 includes:

Step S4021 ′: When the current working mode of the heat recovery multi-connection is the preset main heating mode, extract the power consumption data to obtain the first power consumption data and the second power consumption data.

In a specific implementation, for ease of understanding, description is made with reference to FIG. 7 . FIG. 7 is a schematic diagram of the heat recovery multi-line system operating in the main heating mode. When the current working mode of the heat recovery multi-line system is the preset main heating mode, the indoor unit and the high-temperature hydraulic module are turned on at the same time, and the outdoor unit exchanges heat. At this time, the R410a refrigerant of the outdoor unit condenses and releases heat in the heating indoor unit and the high-temperature hydraulic module, condenses into a liquid refrigerant, and then enters the cooling indoor unit and the outdoor unit heat exchanger to evaporate and return to the compressor again. Circulation, at this time, the hydraulic module absorbs the heat of the R410a refrigerant of the external unit, and goes through a R134a cycle again, exchanging heat with water and condensing, releasing heat to make hot water. At this time, for the user side, the refrigerant circulation of the outdoor unit passes through the high-temperature hydraulic module, the heating indoor unit and the cooling indoor unit. Similarly, to calculate the power consumption ratio of each part, it is necessary to calculate the capacity ratio of each part.

It should be noted that the first power consumption data may be the power consumption data of the outdoor unit, and the second power consumption data may be the power consumption data of the hydraulic module, which is not limited in this embodiment.

Step S4022': Determine heating according to the calorific value absorbed by the hydraulic module, the first power consumption data, the heating capacity of the condenser, and the cooling capacity of the evaporator through a preset second heating internal unit power consumption model Internal power consumption.

It should be understood that the preset power consumption model of the second heating internal unit may be as follows:

In the formula, I′ _{i heating} is the power consumption of the i-th internal heating unit, j~j+n is the time period for detecting power consumption, K _i is the heat transfer coefficient of the i-th internal heating unit, A _i is the heat exchange area of the i-th heating internal unit, T _1i is the high pressure saturation temperature, cvk is the flow coefficient of the k-th indoor unit, cv is the flow coefficient of the electronic expansion valve of the outdoor unit, and Q _hydraulic is the hydraulic module absorption The heat of the external machine, Q _h is the total condensing capacity, that is, the heating capacity of the condenser, Q _c is the total evaporating capacity, that is, the cooling capacity of the evaporator, and M _i1 is the first power consumption data.

Step S4023': According to the calorific value absorbed by the hydraulic module, the first power consumption data, the heating capacity of the condenser and the cooling capacity of the evaporator, determine the internal cooling unit by presetting the power consumption model of the second internal cooling unit power consumption.

It should be understood that the preset power consumption model of the second refrigerator internal unit may be as follows:

In the formula, I′ _{k cooling} is the power consumption of the kth cooling internal unit, j～j+n is the time period for detecting power consumption, K _i is the heat transfer coefficient of the ith heating internal unit, A _i is the heat exchange area of the i-th heating internal unit, T _1i is the high-pressure saturation temperature, cvk is the flow coefficient of the k-th indoor unit, cv is the flow coefficient of the electronic expansion valve of the outdoor unit, and Q _hydraulic is the hydraulic module that absorbs the external unit Heat, Q _h is the total condensing capacity, that is, the heating capacity of the condenser, Q _c is the total evaporating capacity, that is, the cooling capacity of the evaporator, and M _i1 is the first power consumption data.

Step S4024': According to the first power consumption data, the second power consumption data, the absorbed heat value of the hydraulic module, the heating capacity of the condenser, and the cooling capacity of the evaporator, the second hydraulic module consumes a predetermined amount of power. The electricity model determines the electricity consumption of the hydraulic module.

It can be understood that the preset power consumption model of the second hydraulic module can be as follows:

In the formula, I′ _hydraulic is the power consumption of the hydraulic module, cvk is the flow coefficient of the kth indoor unit, cv is the flow coefficient of the electronic expansion valve of the outdoor unit, Q _hydraulic is the heat absorbed by the hydraulic module of the outdoor unit, and Q _h is the total The condensation capacity, that is, the heating capacity of the condenser, Q _c is the total evaporation capacity, that is, the cooling capacity of the evaporator, M _i1 is the first power consumption data, and M _i2 is the second power consumption data.

Step S4025': Determine the power consumption of the indoor unit according to the power consumption of the heating internal unit and the power consumption of the cooling internal unit.

It should be noted that the power consumption of the indoor unit can be the sum of the power consumption of the i-th heating indoor unit and the k-th cooling indoor unit, or the power consumption of all heating indoor units and all cooling indoor units. Sum of power consumption.

In the fourth embodiment, the first power consumption data and the second power consumption data are obtained by extracting the power consumption data when the current working mode of the heat recovery multi-line is the preset main heating mode, The power consumption of the internal heating unit is determined by a preset second power consumption model of the internal heating unit according to the absorbed heat value of the hydraulic module, the first power consumption data, the heating capacity of the condenser and the cooling capacity of the evaporator The power consumption of the internal cooling unit is determined by the preset second power consumption model of the internal cooling unit according to the calorific value absorbed by the hydraulic module, the first power consumption data, the heating capacity of the condenser and the cooling capacity of the evaporator. The power consumption of the second hydraulic module is preset according to the first power consumption data, the second power consumption data, the heat value absorbed by the hydraulic module, the heating capacity of the condenser and the cooling capacity of the evaporator. The model determines the power consumption of the hydraulic module, and determines the power consumption of the indoor unit according to the power consumption of the heating internal unit and the cooling internal unit, so that the current working mode of the heat recovery multi-line can be the default master system. In thermal mode, the power consumption of each heating unit, cooling unit and hydraulic module is calculated separately, thereby improving the accuracy of power consumption detection of the indoor unit and hydraulic module.

In addition, an embodiment of the present application further provides a storage medium, where a multi-connection power consumption detection program is stored on the storage medium, and the multi-connection power consumption detection program as described above is implemented when the multi-connection power consumption detection program is executed by the processor. The steps of the power consumption detection method.

In addition, referring to FIG. 7 , an embodiment of the present application further proposes a multi-line power consumption detection device, the multi-line power consumption detection device includes: a determination module 10 , an acquisition module 20 and a detection module 30 ;

The determining module 10 is configured to obtain the hydraulic module data of the heat recovery multi-line, and determine the absorbed heat value of the hydraulic module according to the hydraulic module data;

The obtaining module 20 is configured to obtain the outdoor unit data, indoor unit data and power consumption data of the heat recovery multi-connection;

The determining module 10 is further configured to determine the heating capacity of the condenser and the cooling capacity of the evaporator according to the outdoor unit data, the indoor unit data and the hydraulic module data;

The detection module 30 is configured to determine the power consumption of the indoor unit and the power consumption of the hydraulic module according to the heat absorption value of the hydraulic module, the power consumption data, the heating capacity of the condenser and the cooling capacity of the evaporator.

In this embodiment, it is disclosed to obtain the hydraulic module data of the heat recovery multi-connection, determine the heat absorption value of the hydraulic module according to the hydraulic module data, and obtain the outdoor unit data, indoor unit data and power consumption data of the heat recovery multi-connection. Determine the heating capacity of the condenser and the cooling capacity of the evaporator according to the data of the machine, indoor unit and hydraulic module, and determine the power consumption of the indoor unit and the cooling capacity of the evaporator according to the absorbed heat value of the hydraulic module, the power consumption data, the heating capacity of the condenser and the cooling capacity of the evaporator. Power consumption; compared with the existing method of only detecting the overall power consumption of multiple connections, in this embodiment, the indoor temperature can be determined according to the calorific value absorbed by the hydraulic module, the power consumption data, the heating capacity of the condenser and the cooling capacity of the evaporator. The power consumption of each indoor unit and the hydraulic module can not be detected in the prior art, so that the power consumption of each indoor unit and hydraulic module with multiple heat recovery connections can be quickly detected. power.

For other embodiments or specific implementation manners of the multi-connection power consumption detection apparatus described in the present application, reference may be made to the foregoing method embodiments, and details are not described herein again.

It should be noted that, herein, the terms "comprising", "comprising" or any other variation thereof are intended to encompass non-exclusive inclusion, such that a process, method, article or system comprising a series of elements includes not only those elements, It also includes other elements not expressly listed or inherent to such a process, method, article or system. Without further limitation, an element qualified by the phrase "comprising a..." does not preclude the presence of additional identical elements in the process, method, article or system that includes the element.

The above-mentioned serial numbers of the embodiments of the present application are only for description, and do not represent the advantages or disadvantages of the embodiments. In a unit claim enumerating several means, several of these means may be embodied by one and the same item of hardware. The use of the words first, second, and third, etc. do not denote any order and may be interpreted as names.

From the description of the above embodiments, those skilled in the art can clearly understand that the methods of the above embodiments can be implemented by means of software plus a necessary general hardware platform, and of course hardware can also be used, but in many cases the former is better implementation. Based on this understanding, the technical solutions of the present application can be embodied in the form of software products that are essentially or contribute to the prior art, and the computer software products are stored in a storage medium (such as a read-only memory image). Memory image, ROM)/Random Access Memory (Random Access Memory, RAM), disk, CD), including several instructions to make a terminal device (which can be a mobile phone, computer, server, heat recovery multi-connection, or network equipment, etc.) to execute the methods described in the various embodiments of the present application.

The above are only the preferred embodiments of the present application, and are not intended to limit the patent scope of the present application. Any equivalent structure or equivalent process transformation made by using the contents of the description and drawings of the present application, or directly or indirectly applied in other related technical fields , are similarly included within the scope of patent protection of this application.

Claims

A method for detecting power consumption of multiple connections, wherein the method for detecting power consumption of multiple connections includes the following steps:

Acquiring the hydraulic module data of the heat recovery multi-line, and determining the heat absorption value of the hydraulic module according to the hydraulic module data;

acquiring outdoor unit data, indoor unit data and power consumption data of the heat recovery multi-connection;

Determine the condenser heating capacity and the evaporator cooling capacity according to the outdoor unit data, the indoor unit data and the hydraulic module data; and

The power consumption of the indoor unit and the power consumption of the hydraulic module are determined according to the absorbed heat value of the hydraulic module, the power consumption data, the heating capacity of the condenser and the cooling capacity of the evaporator.
The multi-line power consumption detection method according to claim 1, wherein the indoor unit is determined according to the calorific value absorbed by the hydraulic module, the power consumption data, the heating capacity of the condenser and the cooling capacity of the evaporator The steps of power consumption and power consumption of hydraulic modules include:

obtaining the current working mode of the heat recovery multi-line; and

The power consumption of the indoor unit and the power consumption of the hydraulic module are determined according to the current working mode, the heat value absorbed by the hydraulic module, the power consumption data, the heating capacity of the condenser and the cooling capacity of the evaporator.
The method for detecting multi-line power consumption according to claim 2, wherein the method is based on the current working mode, the heat value absorbed by the hydraulic module, the power consumption data, the heating capacity of the condenser and the evaporation The steps of determining the power consumption of the indoor unit and the power consumption of the hydraulic module by the cooling capacity of the air conditioner include:

When the current working mode of the heat recovery multi-line is a preset main cooling mode, extracting the power consumption data to obtain target power consumption data;

The power consumption of the heating internal unit is determined by the preset first heating internal unit power consumption model according to the absorbed heat value of the hydraulic module, the target power consumption data, the heating capacity of the condenser and the cooling capacity of the evaporator ;

Determine the power consumption of the internal refrigeration unit by presetting the first power consumption model of the internal refrigeration unit according to the heat absorption value of the hydraulic module, the target power consumption data, the heating capacity of the condenser and the cooling capacity of the evaporator;

Determine the power consumption of the hydraulic module by a preset first hydraulic module power consumption model according to the absorbed heat value of the hydraulic module, the heating capacity of the condenser and the cooling capacity of the evaporator; and

The power consumption of the indoor unit is determined according to the power consumption of the heating internal unit and the power consumption of the cooling internal unit.
The method for detecting multi-line power consumption according to claim 2, wherein the method is based on the current working mode, the heat value absorbed by the hydraulic module, the power consumption data, the heating capacity of the condenser and the evaporation The steps of determining the power consumption of the indoor unit and the power consumption of the hydraulic module by the cooling capacity of the air conditioner include:

extracting the power consumption data when the current working mode of the heat recovery multi-line is the preset main heating mode, to obtain first power consumption data and second power consumption data;

The power consumption of the internal heating unit is determined by a preset second power consumption model of the internal heating unit according to the absorbed heat value of the hydraulic module, the first power consumption data, the heating capacity of the condenser and the cooling capacity of the evaporator quantity;

Determine the power consumption of the internal refrigeration unit by a preset second power consumption model of the internal refrigeration unit according to the value of the heat absorbed by the hydraulic module, the first power consumption data, the heating capacity of the condenser and the cooling capacity of the evaporator;

Determined according to the first power consumption data, the second power consumption data, the absorbed heat value of the hydraulic module, the heating capacity of the condenser and the cooling capacity of the evaporator through a preset power consumption model of the second hydraulic module the power consumption of the hydraulic module; and

The power consumption of the indoor unit is determined according to the power consumption of the heating internal unit and the power consumption of the cooling internal unit.
The method for detecting power consumption of multiple circuits according to any one of claims 1 to 4, wherein the step of acquiring data of hydraulic modules of multiple circuits of heat recovery, and determining the calorific value of hydraulic modules according to the data of hydraulic modules , including:

Obtain the hydraulic module data of the heat recovery multi-line, and determine the return air pressure, return air temperature, compressor frequency, compressor displacement, compressor volumetric efficiency and condenser outlet temperature of the hydraulic module according to the hydraulic module data;

Determine the return air density and the return air enthalpy value of the hydraulic module according to the return air pressure and the return air temperature;

determining a hydraulic module circulation flow based on the compressor frequency, the compressor displacement, the compressor volumetric efficiency, and the return air density; and

The cooling-out enthalpy value of the hydraulic module is determined according to the condenser outlet temperature, and the heat absorbed by the hydraulic module is determined according to the cooling-out enthalpy value of the hydraulic module, the circulating flow rate of the hydraulic module and the return air enthalpy value of the hydraulic module.
The multi-line power consumption detection method according to any one of claims 1 to 4, wherein the condenser heating amount and evaporation are determined according to the outdoor unit data, the indoor unit data and the hydraulic module data The steps of cooling capacity of the device include:

Determine the average enthalpy value of the condenser inlet, the average enthalpy value of the condenser outlet, the average enthalpy value of the evaporator outlet and the enthalpy value of the evaporator inlet according to the outdoor unit data, the indoor unit data and the hydraulic module data;

extracting the outdoor unit data to obtain the compressor circulation flow of the outdoor unit;

Determine the condenser heating capacity according to the compressor circulation flow, the condenser inlet average enthalpy value, and the condenser outlet average enthalpy value; and

The cooling capacity of the evaporator is determined according to the circulating flow of the compressor, the average enthalpy value of the evaporator outlet, and the enthalpy value of the evaporator inlet.
The method for detecting multi-line power consumption according to claim 6, wherein the average enthalpy value of the inlet of the condenser and the average enthalpy of the outlet of the condenser are determined according to the data of the outdoor unit, the data of the indoor unit and the data of the hydraulic module value, the average enthalpy value of the evaporator outlet, and the enthalpy value of the evaporator inlet, including:

Extracting the outdoor unit data to obtain the compressor discharge pressure of the outdoor unit, the compressor return air pressure, the inlet temperature of the external heat exchanger and the outlet temperature of the external heat exchanger;

Extracting the indoor unit data to obtain the inlet temperature of the heat exchanger of the heating inner unit, the outlet temperature of the heating inner unit and the outlet temperature of the cooling inner unit;

Extracting the hydraulic module data to obtain the inlet temperature of the hydraulic module heat exchanger and the outlet temperature of the hydraulic module heat exchanger;

Determine the average enthalpy value of the condenser inlet according to the inlet temperature of the hydraulic module heat exchanger, the inlet temperature of the heating internal heat exchanger, the inlet temperature of the outer heat exchanger, and the exhaust pressure of the compressor;

The average enthalpy value of the condenser outlet is determined according to the outlet temperature of the hydraulic module heat exchanger, the outlet temperature of the heating inner unit and the outlet temperature of the outer heat exchanger, and the average enthalpy value of the condenser outlet is used as the inlet enthalpy value of the evaporator ;as well as

The average enthalpy value of the evaporator outlet is determined according to the outlet temperature of the refrigerator and the return air pressure of the compressor.
A heat recovery multi-line, wherein the heat recovery multi-line includes: a memory, a processor, and a multi-line power consumption detection program stored on the memory and running on the processor, the multi-line When the power consumption detection program is executed by the processor, the steps of the multi-connection power consumption detection method according to any one of claims 1 to 7 are implemented.
A storage medium, wherein a multi-line power consumption detection program is stored on the storage medium, and when the multi-line power consumption detection program is executed by a processor, the multi-line power consumption detection program implements the method according to any one of claims 1 to 7. The steps of the multi-connection power consumption detection method.
A multi-line power consumption detection device, wherein the multi-line power consumption detection device comprises: a determination module, an acquisition module and a detection module;

The determining module is used to obtain the hydraulic module data of the heat recovery multi-line, and determine the absorbed heat value of the hydraulic module according to the hydraulic module data;

the obtaining module, configured to obtain the outdoor unit data, indoor unit data and power consumption data of the heat recovery multi-connection;

The determining module is further configured to determine the heating capacity of the condenser and the cooling capacity of the evaporator according to the outdoor unit data, the indoor unit data and the hydraulic module data;

The detection module is configured to determine the power consumption of the indoor unit and the power consumption of the hydraulic module according to the heat absorption value of the hydraulic module, the power consumption data, the heating capacity of the condenser and the cooling capacity of the evaporator.