阅读说明：本技术 空调设备、空调设备的运行控制方法和可读存储介质 (Air conditioner, operation control method of air conditioner, and readable storage medium ) 是由 蒋运鹏 许永锋 李宏伟 吴晓鸿 黄志林 李鹏飞 于 2020-04-03 设计创作，主要内容包括：本发明提供了一种空调设备、空调设备的运行控制方法和可读存储介质,其中,空调设备包括：压缩机；冷凝器,冷凝器的入口与压缩机的排气口相连接；换热装置,换热装置的第一入口与冷凝器的出口相连接,换热装置的第一出口连接至压缩机的增焓口；增焓阀,设置于换热装置的第一出口与增焓口之间的管路上；控制装置,控制装置与压缩机和增焓阀相连接,并被配置为控制增焓阀开启或关闭。在换热装置与压缩机的增焓口之间设置增焓阀,一方面可以保证有效增含量,另一方面可以避免压缩机中压腔气体反流,保证空调设备的运行效率,第三方面还可以在高负荷场景下关闭增焓阀,避免增加压缩机负荷,有效地保证了空调设备的运行可靠性。(The invention provides an air conditioner, an operation control method of the air conditioner and a readable storage medium, wherein the air conditioner comprises: a compressor; the inlet of the condenser is connected with the exhaust port of the compressor; a first inlet of the heat exchange device is connected with an outlet of the condenser, and a first outlet of the heat exchange device is connected to an enthalpy increasing port of the compressor; the enthalpy increasing valve is arranged on a pipeline between the first outlet and the enthalpy increasing port of the heat exchange device; and the control device is connected with the compressor and the enthalpy increasing valve and is configured to control the opening or closing of the enthalpy increasing valve. Set up between the enthalpy addition mouth of heat transfer device and compressor and increase the enthalpy valve, can guarantee effectively to increase the content on the one hand, on the other hand can avoid compressor middling pressure chamber gas to flow backward, guarantees air conditioning equipment's operating efficiency, and the third aspect can also close the enthalpy valve under the high load scene, avoids increasing compressor load, has guaranteed air conditioning equipment's operational reliability effectively.)

1. An air conditioning apparatus, characterized by comprising:

a compressor;

the inlet of the condenser is connected with the exhaust port of the compressor;

a first inlet of the heat exchange device is connected with an outlet of the condenser, and a first outlet of the heat exchange device is connected to an enthalpy increasing port of the compressor;

the enthalpy increasing valve is arranged on a pipeline between the first outlet of the heat exchange device and the enthalpy increasing port;

a control device connected with the compressor and the enthalpy increasing valve and configured to control the enthalpy increasing valve to open or close.

2. The air conditioning apparatus according to claim 1, wherein the control device includes:

a memory configured to store a computer program;

a processor configured to execute the computer program to implement:

acquiring parameter information of the air conditioning equipment, determining enthalpy-increasing port pressure corresponding to the compressor according to the parameter information, and determining pre-valve pressure corresponding to the enthalpy-increasing valve;

and controlling the enthalpy-increasing port to open or close according to the parameter information, the enthalpy-increasing port pressure and the pre-valve pressure.

3. The air conditioning apparatus according to claim 2, wherein the parameter information includes a return air pressure of the compressor, an internal volume ratio of the compressor, a process index corresponding to the compressor, a discharge pressure of the compressor, and a pressure drop coefficient of the condenser;

the processor executes the computer program to determine the enthalpy-increasing port pressure corresponding to the compressor according to the parameter information, and determine the pre-valve pressure corresponding to the enthalpy-increasing valve, specifically including:

calculating the enthalpy-increasing port pressure according to the return air pressure of the compressor, the internal volume ratio of the compressor and the process index corresponding to the compressor;

and calculating the pressure before the valve according to the discharge pressure of the compressor and the pressure drop coefficient of the condenser.

4. The air conditioning apparatus according to claim 3, wherein the processor executes the computer program to implement controlling the enthalpy addition valve to open or close according to the parameter information, the enthalpy addition port pressure, and the pre-valve pressure, specifically comprising:

determining that the pre-valve pressure is smaller than or equal to the enthalpy-increasing port pressure, or determining that the exhaust pressure is smaller than or equal to the product of the return air pressure and a preset constant, and controlling the enthalpy-increasing valve to close;

and determining that the pressure before the valve is greater than the pressure of the enthalpy-increasing port, determining that the exhaust pressure is greater than the product of the return air pressure and the preset constant, and controlling the opening of the enthalpy-increasing valve.

5. The air conditioning apparatus according to claim 4, wherein the preset constant is greater than 0 and less than or equal to 10.

6. The air conditioning apparatus according to any one of claims 1 to 5, wherein the second inlet of the heat exchanging device is connected to the outlet of the condenser, the air conditioning apparatus further comprising:

an inlet of the evaporator is connected with a second outlet of the heat exchange device, and an outlet of the evaporator is connected to a return air port of the compressor;

the throttling device is arranged on a pipeline between the second outlet of the heat exchange device and the inlet of the evaporator;

the first inlet of the heat exchange device is communicated with the first outlet of the heat exchange device, and the second inlet of the heat exchange device is communicated with the second outlet of the heat exchange device.

7. An operation control method of an air conditioning apparatus for controlling the air conditioning apparatus according to any one of claims 1 to 6, characterized by comprising:

acquiring parameter information of the air conditioning equipment, determining enthalpy-increasing port pressure corresponding to the compressor according to the parameter information, and determining pre-valve pressure corresponding to the enthalpy-increasing valve;

and controlling the enthalpy-increasing port to open or close according to the parameter information, the enthalpy-increasing port pressure and the pre-valve pressure.

8. The operation control method of an air conditioning apparatus according to claim 7, wherein the parameter information includes a return air pressure of the compressor, an internal volume ratio of the compressor, a process index corresponding to the compressor, a discharge pressure of the compressor, and a pressure drop coefficient of the condenser;

the step of determining the enthalpy-increasing port pressure corresponding to the compressor and determining the pre-valve pressure corresponding to the enthalpy-increasing valve according to the parameter information specifically includes:

calculating the enthalpy-increasing port pressure according to the return air pressure of the compressor, the internal volume ratio of the compressor and the process index corresponding to the compressor;

and calculating the pressure before the valve according to the discharge pressure of the compressor and the pressure drop coefficient of the condenser.

9. The operation control method of an air conditioning apparatus according to claim 8, wherein the step of controlling the opening or closing of the enthalpy-increasing port according to the parameter information, the enthalpy-increasing port pressure, and the pre-valve pressure specifically includes:

determining that the pre-valve pressure is smaller than or equal to the enthalpy-increasing port pressure, or determining that the exhaust pressure is smaller than or equal to the product of the return air pressure and a preset constant, and controlling the enthalpy-increasing valve to close;

and determining that the pressure before the valve is greater than the pressure of the enthalpy-increasing port, determining that the exhaust pressure is greater than the product of the return air pressure and the preset constant, and controlling the opening of the enthalpy-increasing valve.

10. The operation control method of an air conditioning apparatus according to claim 9, wherein the preset constant is greater than 0 and the preset constant is less than or equal to 10.

11. A computer-readable storage medium on which a computer program is stored, characterized in that the computer program, when executed by a processor, implements the operation control method of an air conditioning apparatus according to any one of claims 7 to 10.

Technical Field

The present invention relates to the field of air conditioning equipment, and in particular, to an air conditioning equipment, an operation control method of the air conditioning equipment, and a computer-readable storage medium.

Background

In the related art, the enhanced vapor injection compressor performs vapor injection on an enhanced vapor path of the compressor after the compressor is started, but in some practical scenes, the pressure of a medium pressure cavity of the compressor is greater than the pressure of middle vapor injection, and at the moment, the enhanced vapor injection can cause gas in the medium pressure cavity of the compressor to reversely flow into a system, so that the operation efficiency of the system is reduced, and if the enhanced vapor is always performed in some high-load scenes, the load of the compressor can be increased to influence the reliability of the system.

Therefore, there is a need for an air conditioning apparatus capable of effectively controlling an enthalpy increasing process.

Disclosure of Invention

The present invention is directed to solving at least one of the problems of the prior art or the related art.

To this end, a first aspect of the invention proposes an air conditioning system.

A second aspect of the present invention provides an operation control method of an air conditioning apparatus.

A third aspect of the invention proposes a computer-readable storage medium.

In view of this, a first aspect of the present invention provides an air conditioning apparatus including: a compressor; the inlet of the condenser is connected with the exhaust port of the compressor; a first inlet of the heat exchange device is connected with an outlet of the condenser, and a first outlet of the heat exchange device is connected to an enthalpy increasing port of the compressor; the enthalpy increasing valve is arranged on a pipeline between the first outlet and the enthalpy increasing port of the heat exchange device; and the control device is connected with the compressor and the enthalpy increasing valve and is configured to control the opening or closing of the enthalpy increasing valve.

In this technical scheme, air conditioning equipment includes heat transfer device, and heat transfer device's first entry is connected to the export of condenser, and heat transfer device's first exit linkage is to the enthalpy increasing mouth of compressor to carry out the tonifying qi enthalpy increase to the compressor. Between the enthalpy-increasing mouth of heat transfer device and compressor, be provided with the enthalpy-increasing valve, open or close through the steerable enthalpy-increasing valve of controlling means, and then the enthalpy-increasing process of effectual control compressor, can guarantee effectively to increase the content on the one hand, on the other hand can avoid the compressor middling pressure chamber gas to flow backward, guarantees air conditioning equipment's operating efficiency, and the third aspect can also close the enthalpy-increasing valve under the high load scene, avoids increasing the compressor load, has guaranteed air conditioning equipment's operational reliability effectively.

In addition, the air conditioning equipment in the above technical solution provided by the present invention may further have the following additional technical features:

in the above technical solution, the control device includes: a memory configured to store a computer program; a processor configured to execute a computer program to implement: acquiring parameter information of air conditioning equipment, determining enthalpy-increasing port pressure corresponding to a compressor according to the parameter information, and determining pre-valve pressure corresponding to an enthalpy-increasing valve; and controlling the enthalpy-increasing valve to open or close according to the parameter information, the enthalpy-increasing port pressure and the pre-valve pressure.

According to the technical scheme, in the running process of the air conditioning equipment, parameter information of the air conditioning equipment is obtained in real time, and enthalpy-increasing port pressure of the compressor and pre-valve pressure of the enthalpy-increasing valve are determined according to the parameter information. The control device determines the actual operation condition of the compressor according to the parameter information, the enthalpy-increasing port pressure and the pressure before the valve, and correspondingly controls the opening or closing of the enthalpy-increasing port so as to effectively control the enthalpy-increasing process. On the one hand, open the enthalpy-increasing valve in order to make up the gas and increase the enthalpy to the compressor when the operating mode is suitable, guaranteed effectively to increase the content, on the other hand in time closes the enthalpy-increasing valve in the operating mode is unsuitable, avoids compressor middling pressure chamber gas to flow backward, guarantees air conditioning equipment's operating efficiency, avoids increasing compressor load simultaneously, has guaranteed air conditioning equipment's operational reliability effectively.

In any of the above technical solutions, the parameter information includes a return air pressure of the compressor, an internal volume ratio of the compressor, a process index corresponding to the compressor, an exhaust pressure of the compressor, and a pressure drop coefficient of the condenser; the processor executes a computer program to determine the enthalpy-increasing port pressure corresponding to the compressor according to the parameter information and determine the pre-valve pressure corresponding to the enthalpy-increasing valve, and specifically includes: calculating enthalpy-increasing port pressure according to the return air pressure of the compressor, the internal volume ratio of the compressor and the process index corresponding to the compressor; and calculating the pressure before the valve according to the discharge pressure of the compressor and the pressure drop coefficient of the condenser.

In the technical scheme, the enthalpy-increasing port pressure is calculated according to the return air pressure of the compressor, the internal volume ratio of the compressor and the process index corresponding to the compressor. Specifically, the enthalpy gain port pressure may be determined by the following function:

Ph＝Pe×^CP；

wherein Ph is enthalpy-increasing port pressure, Pe is return air pressure, is internal volume ratio, CP is process index, and CP are constants.

Meanwhile, the pre-valve pressure is calculated according to the discharge pressure of the compressor and the pressure drop coefficient of the condenser, and specifically, the pre-valve pressure may be determined by the following function:

Ph’＝Pc-Pη；

where Ph' is the pre-valve pressure, Pc is the exhaust pressure, and P η is the pressure drop coefficient and is a constant.

In the above formula, CP is associated with the specification of the scroll of the compressor, and CP is a range value where the maximum value of CP is taken P η is associated with the specification of the condenser.

In any of the above technical solutions, the processor executes a computer program to control opening or closing of the enthalpy-increasing port according to the parameter information, the enthalpy-increasing port pressure, and the pre-valve pressure, and specifically includes: determining that the pressure before the valve is smaller than or equal to the pressure of the enthalpy-increasing port, or determining that the exhaust pressure is smaller than or equal to the product of the return air pressure and a preset constant, and controlling the enthalpy-increasing valve to close; and determining that the pressure before the valve is greater than the pressure of the enthalpy-increasing port, determining that the exhaust pressure is greater than the product of the return air pressure and a preset constant, and controlling the opening of the enthalpy-increasing valve.

In the technical scheme, if the pre-valve pressure of the enthalpy-increasing valve is determined to be less than or equal to the enthalpy-increasing port pressure, the enthalpy-increasing valve is opened, so that the risk of backflow of gas in the middle-pressure cavity is indicated, and the enthalpy-increasing valve is closed. If it is determined that the discharge pressure of the compressor is less than or equal to the product of the return air pressure and the preset constant, which indicates that the compressor load is high, opening the enthalpy increasing valve may affect the operation stability of the compressor, so that the enthalpy increasing valve also needs to be closed.

And if and only if the pressure before the valve is greater than the pressure of the enthalpy-increasing port and the exhaust pressure is determined to be greater than the product of the return air pressure and the preset constant, determining that the current working condition of the compressor is more appropriate, controlling the enthalpy-increasing valve to open at the moment, supplementing air and increasing enthalpy to the compressor, and ensuring effective content increase.

In any of the above technical solutions, the predetermined constant is greater than 0, and the predetermined constant is less than or equal to 10.

In the technical scheme, the value range of the preset constant is greater than 0 and less than or equal to 10, and the specific value of the preset constant can be determined according to the actual operation environment of the air conditioner.

In any of the above technical solutions, the second inlet of the heat exchanger is connected to the outlet of the condenser, and the air conditioning apparatus further includes: the inlet of the evaporator is connected with the second outlet of the heat exchange device, and the outlet of the evaporator is connected to the return air port of the compressor; the throttling device is arranged on a pipeline between the second outlet of the heat exchange device and the inlet of the evaporator; the first inlet of the heat exchange device is communicated with the first outlet of the heat exchange device, and the second inlet of the heat exchange device is communicated with the second outlet of the heat exchange device.

In the technical scheme, the condenser, the compressor and the evaporator are sequentially connected to form a closed refrigerant loop. The high-temperature and high-pressure refrigerant compressed by the compressor enters the condenser, is condensed and released heat in the condenser, then enters the evaporator for evaporation after being throttled by the throttling device, absorbs heat, and realizes the 'transportation' of the heat from the evaporator side to the condenser side through the circulation of the refrigerant, thereby realizing the refrigeration or heating of the heat pump.

The heat exchange device comprises a first pipeline and a second pipeline, the first pipeline is communicated with the condenser and the evaporator, the second pipeline is communicated with the enthalpy increasing ports of the condenser and the compressor, and air and enthalpy are added to the compressor.

A second aspect of the present invention provides an operation control method for an air conditioning apparatus, for controlling the air conditioning apparatus provided in any one of the above technical solutions, the control method including: acquiring parameter information of air conditioning equipment, determining enthalpy-increasing port pressure corresponding to a compressor according to the parameter information, and determining pre-valve pressure corresponding to an enthalpy-increasing valve; and controlling the enthalpy-increasing valve to open or close according to the parameter information, the enthalpy-increasing port pressure and the pre-valve pressure.

According to the technical scheme, in the running process of the air conditioning equipment, parameter information of the air conditioning equipment is obtained in real time, and enthalpy-increasing port pressure of the compressor and pre-valve pressure of the enthalpy-increasing valve are determined according to the parameter information. The control device determines the actual operation condition of the compressor according to the parameter information, the enthalpy-increasing port pressure and the pressure before the valve, and correspondingly controls the opening or closing of the enthalpy-increasing port so as to effectively control the enthalpy-increasing process. On the one hand, open the enthalpy-increasing valve in order to make up the gas and increase the enthalpy to the compressor when the operating mode is suitable, guaranteed effectively to increase the content, on the other hand in time closes the enthalpy-increasing valve in the operating mode is unsuitable, avoids compressor middling pressure chamber gas to flow backward, guarantees air conditioning equipment's operating efficiency, avoids increasing compressor load simultaneously, has guaranteed air conditioning equipment's operational reliability effectively.

In the technical scheme, the parameter information comprises return air pressure of the compressor, an internal volume ratio of the compressor, a process index corresponding to the compressor, exhaust pressure of the compressor and a pressure drop coefficient of the condenser; the method comprises the steps of determining enthalpy-increasing port pressure corresponding to a compressor according to parameter information, and determining pre-valve pressure corresponding to an enthalpy-increasing valve, and specifically comprises the following steps: calculating enthalpy-increasing port pressure according to the return air pressure of the compressor, the internal volume ratio of the compressor and the process index corresponding to the compressor; and calculating the pressure before the valve according to the discharge pressure of the compressor and the pressure drop coefficient of the condenser.

In the technical scheme, the enthalpy-increasing port pressure is calculated according to the return air pressure of the compressor, the internal volume ratio of the compressor and the process index corresponding to the compressor. Specifically, the enthalpy gain port pressure may be determined by the following function:

Ph＝Pe×^CP；

wherein Ph is enthalpy-increasing port pressure, Pe is return air pressure, is internal volume ratio, CP is process index, and CP are constants.

Meanwhile, the pre-valve pressure is calculated according to the discharge pressure of the compressor and the pressure drop coefficient of the condenser, and specifically, the pre-valve pressure may be determined by the following function:

Ph’＝Pc-Pη；

where Ph' is the pre-valve pressure, Pc is the exhaust pressure, and P η is the pressure drop coefficient and is a constant.

In the above formula, CP is associated with the specification of the scroll of the compressor, and CP is a range value where the maximum value of CP is taken P η is associated with the specification of the condenser.

In any of the above technical solutions, the step of controlling the opening or closing of the enthalpy-increasing port according to the parameter information, the enthalpy-increasing port pressure, and the pressure before the valve specifically includes: determining that the pressure before the valve is smaller than or equal to the pressure of the enthalpy-increasing port, or determining that the exhaust pressure is smaller than or equal to the product of the return air pressure and a preset constant, and controlling the enthalpy-increasing valve to close; and determining that the pressure before the valve is greater than the pressure of the enthalpy-increasing port, determining that the exhaust pressure is greater than the product of the return air pressure and a preset constant, and controlling the opening of the enthalpy-increasing valve.

In the technical scheme, if the pre-valve pressure of the enthalpy-increasing valve is determined to be less than or equal to the enthalpy-increasing port pressure, the enthalpy-increasing valve is opened, so that the risk of backflow of gas in the middle-pressure cavity is indicated, and the enthalpy-increasing valve is closed. If it is determined that the discharge pressure of the compressor is less than or equal to the product of the return air pressure and the preset constant, which indicates that the compressor load is high, opening the enthalpy increasing valve may affect the operation stability of the compressor, so that the enthalpy increasing valve also needs to be closed.

And if and only if the pressure before the valve is greater than the pressure of the enthalpy-increasing port and the exhaust pressure is determined to be greater than the product of the return air pressure and the preset constant, determining that the current working condition of the compressor is more appropriate, controlling the enthalpy-increasing valve to open at the moment, supplementing air and increasing enthalpy to the compressor, and ensuring effective content increase.

In any of the above technical solutions, the predetermined constant is greater than 0, and the predetermined constant is less than or equal to 10.

In the technical scheme, the value range of the preset constant is greater than 0 and less than or equal to 10, and the specific value of the preset constant can be determined according to the actual operation environment of the air conditioner.

A third aspect of the present invention provides a computer-readable storage medium on which a computer program is stored, the computer program, when executed by a processor, implementing the operation control method of an air conditioning apparatus as provided in any one of the above-mentioned aspects, and therefore the computer-readable storage medium includes all the advantageous effects of the operation control method of an air conditioning apparatus as provided in any one of the above-mentioned aspects.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

fig. 1 shows a schematic configuration diagram of an air conditioning apparatus according to an embodiment of the present invention;

fig. 2 is a block diagram showing a configuration of a control apparatus of an air conditioner according to an embodiment of the present invention;

fig. 3 is a flowchart illustrating an operation control method of an air conditioner according to an embodiment of the present invention;

fig. 4 is another flowchart illustrating an operation control method of an air conditioner according to an embodiment of the present invention;

fig. 5 is still another flowchart illustrating an operation control method of an air conditioner according to an embodiment of the present invention;

fig. 6 is still another flowchart illustrating an operation control method of an air conditioner according to an embodiment of the present invention.

Wherein, the corresponding relation between the reference numbers and the part names in fig. 1 is:

102 compressor, 1022 enthalpy increasing port, 104 condenser, 106 heat exchange device, 108 enthalpy increasing valve, 110 evaporator and 112 throttling device.

Detailed Description

In order that the above objects, features and advantages of the present invention can be more clearly understood, a more particular description of the invention will be rendered by reference to the appended drawings. It should be noted that the embodiments and features of the embodiments of the present application may be combined with each other without conflict.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, however, the present invention may be practiced in other ways than those specifically described herein, and therefore the scope of the present invention is not limited by the specific embodiments disclosed below.

The air conditioner, an operation control method of the air conditioner, and a computer-readable storage medium according to some embodiments of the present invention are described below with reference to fig. 1 to 6.