CN114322369A - Air source heat pump system, control method, computer device and storage medium - Google Patents
Air source heat pump system, control method, computer device and storage medium Download PDFInfo
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Abstract
The invention discloses an air source heat pump system, a control method, a computer device and a storage medium, wherein the air source heat pump system comprises a compressor, a main loop pipeline, an auxiliary loop pipeline, an economizer and a control module, the main loop pipeline is respectively connected with a first refrigerant interface and a second refrigerant interface of the compressor, one end of the auxiliary loop pipeline is communicated with the middle part of the main loop pipeline, the other end of the auxiliary loop pipeline is connected with a third refrigerant interface of the compressor, the main loop pipeline and the auxiliary loop pipeline exchange heat through the economizer, and the control module is used for controlling the auxiliary loop pipeline to be synchronously started with the compressor. The auxiliary loop pipeline can be started in advance in the compressor, so that the function of the auxiliary loop pipeline can be exerted in advance, the effect of controlling the exhaust temperature of the compressor is enhanced, and the exhaust temperature of the compressor is not easy to be too high even if the ambient temperature is too low, so that the good operation of the compressor is ensured. The invention is widely applied to the technical field of heat pumps.
Description
Technical Field
The invention relates to the technical field of heat pumps, in particular to an air source heat pump system, a control method, a computer device and a storage medium.
Background
The working principle of the heat pump is a mechanical device which forces heat to flow from a low-temperature object to a high-temperature object in a reverse circulation mode, and the heat pump can obtain larger heat supply amount only by consuming a small amount of reverse circulation net work, and can effectively utilize low-grade heat energy which is difficult to apply to achieve the purpose of energy conservation. When the heat pump water heater is applied to electric appliances such as a heat pump water heater, a low-temperature object faced by a heat pump is an outdoor low-temperature environment, and a high-temperature object is hot water to be heated. In the related art of the existing heat pump, when the outdoor environment temperature is too low, the exhaust temperature of the compressor in the heat pump is easily too high, for example, when the outdoor environment temperature is lower than 0 ℃, the exhaust temperature of the compressor is easily over 130 ℃, which causes phenomena of thinning of lubricating oil, carbonization of lubricating oil, or cylinder pulling of the compressor, and damages to the compressor, so that the existing heat pump electrical appliance generally cannot normally operate when the outdoor environment temperature is lower than 0 ℃, which results in a narrow adaptation range of the heat pump electrical appliance.
Disclosure of Invention
The invention aims to provide an air source heat pump system, a control method, a computer device and a storage medium, aiming at least one technical problem of overhigh exhaust of the heat pump and the like caused by overlarge temperature difference between a heat absorption end and a heat generation end of the heat pump in the working process of the heat pump.
In one aspect, an embodiment of the present invention includes an air-source heat pump system, including:
a compressor; the compressor includes a first refrigerant interface, a second refrigerant interface, and a third refrigerant interface; the refrigerant flow directions of the first refrigerant interface and the second refrigerant interface are opposite, and the refrigerant flow directions of the second refrigerant interface and the third refrigerant interface are the same;
a main loop line; one end of the main loop pipeline is connected with the first refrigerant interface, and the other end of the main loop pipeline is connected with the second refrigerant interface;
an auxiliary loop line; one end of the auxiliary loop pipeline is communicated with the middle position of the main loop pipeline, and the other end of the auxiliary loop pipeline is connected with the third refrigerant interface;
an economizer; the main loop pipeline and the auxiliary loop pipeline exchange heat through the economizer;
a control module; the control module is used for controlling the auxiliary loop pipeline to be opened before the compressor is started.
Further, the controlling the auxiliary circuit pipeline to be opened before the compressor is started comprises:
and before the compressor is started, controlling the auxiliary loop pipeline to be opened at an initial opening degree.
Further, the controlling the auxiliary circuit pipeline to be opened before the compressor is started comprises:
predicting the starting time of the compressor to obtain the predicted starting time;
and controlling the auxiliary loop pipeline to be opened at an initial opening degree in a first time period before the predicted starting time.
Further, the predicting the starting time of the compressor and obtaining the predicted starting time comprises:
the water flow detection time is a first time period;
the starting delay of the fan is a second time period;
the shortest shutdown time of the compressor is a third time period;
the starting time of the compressor is the time when the first time interval, the second time interval and the third time interval are met simultaneously.
Further, the predicting the starting time of the compressor and obtaining the predicted starting time comprises:
recording a plurality of actual start times of the compressor;
establishing a prediction model according to the actual starting times;
determining the predicted launch time according to the predictive model.
Further, the control module is further configured to:
acquiring an ambient temperature and an effluent temperature;
and determining the initial opening according to the environment temperature and the outlet water temperature.
Further, the controlling the auxiliary circuit pipeline to be opened before the compressor is started comprises:
acquiring an ambient temperature and an effluent temperature;
and when the ambient temperature is lower than a first temperature threshold and the outlet water temperature is higher than a second temperature threshold, controlling the auxiliary loop pipeline to be started before the compressor is started, otherwise, controlling the auxiliary loop pipeline to be started after the compressor is started for a period of time.
In another aspect, an embodiment of the present invention further includes a method for controlling an air source heat pump system, where the air source heat pump system includes:
a compressor; the compressor includes a first refrigerant interface, a second refrigerant interface, and a third refrigerant interface; in the same working mode of the compressor, the refrigerant flow directions of the first refrigerant interface and the second refrigerant interface are opposite, and the refrigerant flow directions of the second refrigerant interface and the third refrigerant interface are the same;
a main loop line; one end of the main loop pipeline is connected with the first refrigerant interface, and the other end of the main loop pipeline is connected with the second refrigerant interface;
an auxiliary loop line; one end of the auxiliary loop pipeline is communicated with the middle position of the main loop pipeline, and the other end of the auxiliary loop pipeline is connected with the third refrigerant interface;
an economizer; the main loop pipeline and the auxiliary loop pipeline exchange heat through the economizer;
the control method comprises the following steps:
and controlling the auxiliary loop pipeline to be opened before the compressor is started.
In another aspect, the present invention further includes a computer device, including a memory for storing at least one program and a processor for loading the at least one program to execute the control method of the air source heat pump system in the embodiment.
In another aspect, the present invention further includes a storage medium in which a processor-executable program is stored, the processor-executable program being configured to execute the control method of the air source heat pump system in the embodiment when executed by the processor.
The invention has the beneficial effects that: according to the air source heat pump system in the embodiment, the exhaust volume of the compressor can be increased on the basis of the main loop pipeline by opening the auxiliary loop pipeline, so that the exhaust temperature of the compressor is prevented from being too high. Under extreme working conditions, when the compressor starts, the exhaust temperature soaks. At the moment, the auxiliary loop pipeline can be opened before the compressor is started, so that the compressor is ensured to be in a state before the exhaust temperature is increased sharply. The function of reducing the exhaust temperature of the auxiliary circuit is exerted earlier. Thereby making the rising trend of the exhaust temperature more stable. The situation that the compressor is started, the excessive temperature discharge caused by surge temperature discharge protects the alarm and stops is avoided. Because the air source heat pump system in the embodiment has a good exhaust temperature effect, even if the ambient temperature is too low, the exhaust temperature of the compressor is not easy to be too high, thereby ensuring good operation of the compressor.
Drawings
Fig. 1 is a schematic diagram of the structure and the operation principle of an air source heat pump system in an embodiment.
Detailed Description
In this embodiment, the structure of the air source heat pump system is as shown in fig. 1, the air source heat pump system includes a compressor, a main loop pipeline, an auxiliary loop pipeline, an economizer, a control module and the like, wherein the compressor, the main loop pipeline, the auxiliary loop pipeline and the economizer are all shown in fig. 1, the control module is not shown in fig. 1, a single chip microcomputer or a dedicated controller can be used as the control module, the control module can obtain corresponding control functions through programming, the control module can collect data from sensors such as an exhaust temperature probe and an intake temperature probe in fig. 1, and a control algorithm program is operated to generate instructions, so as to control components such as an auxiliary electronic expansion valve and a main electronic expansion valve in fig. 1.
Referring to fig. 1, the compressor includes a first refrigerant port 1, a second refrigerant port 2, and a third refrigerant port 3. The refrigerant flow directions of the first refrigerant interface 1 and the second refrigerant interface 2 are opposite, and the refrigerant flow directions of the second refrigerant interface 2 and the third refrigerant interface 3 are the same.
When the compressor is in operation, that is, to carry heat of the wind-side heat exchanger in fig. 1 to the water-side heat exchanger, the first refrigerant interface 1 of the compressor is used as a discharge port, that is, to discharge refrigerant compressed by the compressor, and the refrigerant flow direction of the second refrigerant interface 2 and the third refrigerant interface 3 is the same and opposite to the refrigerant flow direction of the first refrigerant interface 1, then the second refrigerant interface 2 and the third refrigerant interface 3 of the compressor are used as suction ports, that is, to input refrigerant into the compressor for compression.
Referring to fig. 1, the main circuit pipeline includes pipelines led out from a first refrigerant interface 1 and a second refrigerant interface 2, and an exhaust temperature probe, a high-pressure switch, a four-way valve, a wind-side heat exchanger, a fin temperature probe, a drying filter, a main circuit electronic expansion valve, a liquid reservoir, a water-side heat exchanger, an intake temperature probe, a low-pressure switch, an intake pressure probe, and the like connected to the pipelines, that is, one end of the main circuit pipeline is connected to the first refrigerant interface 1, and the other end of the main circuit pipeline is connected to the second refrigerant interface 2.
Referring to fig. 1, the auxiliary circuit lines include portions of the lines marked by slash segments in fig. 1, and auxiliary electronic expansion valves connected to these lines. One end of the auxiliary circuit line is connected to the middle of the main circuit line, i.e., a point near the main circuit electronic expansion valve in fig. 1, and extends to be connected to the third refrigerant port 3.
Referring to fig. 1, a part of the main loop pipeline and a part of the auxiliary loop pipeline are both led into the economizer, and the main loop pipeline and the auxiliary loop pipeline can exchange heat through the economizer.
The components in fig. 1 and their functions are shown in table 1.
TABLE 1
In fig. 1, the circulation of refrigerant in the piping is indicated by arrows, wherein the solid arrows indicate the flow direction of the refrigerant in the case where the air source heat pump system operates in the heating mode, i.e., the heat of the wind side heat exchanger is carried to the water side heat exchanger; the dashed arrows indicate the direction of flow of the refrigerant when the air source heat pump system is operating in defrost mode, i.e. when the heat from the water side heat exchanger is being carried to the wind side heat exchanger.
In this embodiment, the control module may control the conduction of four interfaces of the four-way valve, thereby controlling the flow direction of the refrigerant. Referring to fig. 1, the four-way valve includes A, B, C, D four interfaces, when the control module controls the connection between the interface a and the interface B, and the connection between the interface C and the interface D, the compressed refrigerant gas discharged from the first refrigerant interface 1 of the compressor enters the main loop pipeline, passes through the interface a and the interface B of the four-way valve to reach the water side heat exchanger, heats the water in the water side heat exchanger, and the circulating water absorbing heat and raising the temperature can be used for heating; the refrigerant continuously reaches the economizer through the main loop pipeline and exchanges heat with the refrigerant in the auxiliary loop pipeline, and specifically, the refrigerant in the main loop pipeline transfers heat to the refrigerant in the auxiliary loop pipeline; the refrigerant continues to reach the wind side heat exchanger through the main loop pipeline, after absorbing the heat of the environment through the wind side heat exchanger, reaches the second refrigerant interface 2 of the compressor through the interface C and the interface D of the four-way valve, is compressed by the compressor and then is discharged from the first refrigerant interface 1, thereby completing a cycle.
In this embodiment, when the control module controls the connection between the interface a and the interface D and the connection between the interface B and the interface C, the flow direction of the refrigerant in the main loop pipeline is opposite to the flow direction when the interface a and the interface B are connected and the connection between the interface C and the interface D is connected, so that the heat of the water-side heat exchanger can be transported to the air-side heat exchanger, and the functions of defrosting and the like are realized.
Since the difference between the heating function and the defrosting function of the air source heat pump system is mainly that the refrigerant flow directions in the main loop pipelines are opposite, only the heating function of the air source heat pump system can be explained.
In this embodiment, after heat exchange is performed by the water side heat exchanger, the condensed refrigerant is divided into two paths before reaching the main path electronic expansion valve, and one path continues to flow along the main loop pipeline and continues to flow along the original flow direction to reach the main path electronic expansion valve. The control module can control the opening and closing of the auxiliary circuit pipeline by controlling the opening degree of the auxiliary electronic expansion valve, namely if the opening degree of the auxiliary electronic expansion valve is smaller than a threshold value or 0, the refrigerant cannot flow into the auxiliary circuit pipeline, the auxiliary circuit pipeline is closed, and if the opening degree of the auxiliary electronic expansion valve is larger than the threshold value or reaches the maximum value, the refrigerant flows into the auxiliary circuit pipeline, and the auxiliary circuit pipeline is opened. With the auxiliary circuit line open, the other of the refrigerant enters the auxiliary circuit line.
The refrigerant liquid in the auxiliary loop pipeline is decompressed to a certain intermediate pressure by an auxiliary electronic expansion valve and then is changed into a medium-pressure gas-liquid mixture, and then the medium-pressure gas-liquid mixture reaches the economizer. The refrigerant in the auxiliary loop pipeline exchanges heat with refrigerant liquid with higher temperature in the main loop pipeline in the economizer, the refrigerant liquid in the auxiliary loop pipeline absorbs heat and turns into gas, the gas is supplemented into a working cavity of the compressor through a third refrigerant interface 3 of the compressor, and the gas is discharged from a first refrigerant interface 1 after being compressed by the compressor. Meanwhile, refrigerant in the main loop pipeline is supercooled through heat exchange in the economizer, and the part of supercooled refrigerant in the main loop pipeline enters the air side heat exchanger after passing through the main circuit electronic expansion valve, so that heat is absorbed by the air side heat exchanger and returns to the compressor.
The refrigerant returning to the compressor from the second refrigerant interface 2 in the main loop pipeline is mixed with the refrigerant returning to the compressor from the third refrigerant interface 3 in the auxiliary loop pipeline in the working chamber of the compressor, then the two parts of refrigerants are mixed while being compressed along with the rotation of the working chamber until the mixing process is finished, and the mixed refrigerant is further compressed by the compressor and then is discharged out of the compressor through the first refrigerant interface 1. Thus, a complete closed cycle is formed.
In this embodiment, the main circuit serves as a refrigeration circuit and the auxiliary circuit serves as a jet circuit. Specifically, the compressor is compressed by adopting a two-stage throttling middle air injection technology, namely, the compressor is compressed and cooled by mixing air injection at medium and low pressure, then is normally compressed at high pressure, the air displacement of the compressor is improved, gas-liquid separation is carried out by an economizer, an auxiliary loop pipeline and the economizer are arranged, heat exchange is carried out between a refrigerant in the auxiliary loop pipeline and a refrigerant in a main loop pipeline, the enthalpy increasing effect can be realized, and the purpose of improving the heating capacity in a low-temperature environment is achieved.
In this embodiment, the control module controls the start and stop of the compressor according to factors such as heating requirements, for example, the compressor is started when heating is needed, the compressor is stopped after one round of heating is completed, and the compressor is restarted when a new round of heating is performed.
In this embodiment, the control module controls the auxiliary circuit pipeline to be started in advance when the compressor is started.
Specifically, the auxiliary circuit pipeline is started in advance when the compressor is started, which may mean that the auxiliary circuit pipeline is started in advance when the compressor is started, and the auxiliary circuit pipeline is started means that the auxiliary electronic expansion valve is opened.
In this embodiment, if the auxiliary circuit pipe is also started within a short period of time before the compressor is started each time, the predicted start time may be obtained by predicting the start time of the compressor, and the auxiliary circuit pipe is controlled to be opened within a first period of time before the predicted start time.
Specifically, the starting time of the compressor is a time that a first time period, a second time period and a third time period are simultaneously met, wherein the first time period is a water flow detection time, the second time period is a fan starting delay time, and the third time period is the shortest stopping time of the compressor, so that the starting time of the compressor is predicted and the starting time of the compressor includes the water flow detection time, the fan starting delay time and the shortest stopping time of the compressor.
In this embodiment, an initial opening degree may be set whether the auxiliary circuit pipeline is controlled to be kept started simultaneously with the compressor or the auxiliary circuit pipeline is controlled to be started slightly earlier than the compressor, and the opening degree of the auxiliary electronic expansion valve is controlled to reach the initial opening degree when the auxiliary circuit pipeline is controlled to be just started. After the auxiliary loop pipeline is opened, the control module can control the opening degree of the auxiliary electronic expansion valve through a PID control algorithm.
In this embodiment, the initial opening degree of the electronic expansion valve of the control auxiliary may be different at different ambient temperatures and different water outlet temperatures, that is, the control module may set the initial opening degree according to the ambient temperature and the water outlet temperature. The control module can measure the ambient temperature through the fin temperature probe in fig. 1, and measure the water temperature through the water outlet temperature probe. Then, the corresponding initial opening degree can be obtained by inquiring the corresponding relation among the environmental temperature, the outlet water temperature and the initial opening degree shown in table 2, and then the opening degree of the auxiliary electronic expansion valve is controlled to reach the initial opening degree.
TABLE 2
In this embodiment, through opening the auxiliary circuit pipeline, can be on the basis of main loop pipeline through the refrigerant flow who adjusts the auxiliary circuit pipeline, carry out supplementary row temperature control to the compressor to avoid the compressor high temperature. Under extreme working conditions, when the compressor starts, the exhaust temperature soaks. At the moment, the auxiliary loop pipeline can be opened before the compressor is started, so that the compressor is ensured to be in front of the rapid temperature rise of the exhaust. The function of reducing the exhaust temperature of the auxiliary circuit is exerted earlier. Thereby making the rising trend of the exhaust temperature more stable. The situation that the compressor is started, the excessive temperature discharge caused by surge temperature discharge protects the alarm and stops is avoided. Because the air source heat pump system in the embodiment has a good exhaust temperature control effect, even if the ambient temperature is too low, for example, the exhaust temperature of the compressor is not easily too high when the ambient temperature is lower than 0 ℃, thereby ensuring good operation of the compressor.
In this embodiment, the control module may divide the initial opening interval of the auxiliary loop pipeline according to the first temperature threshold and the second temperature threshold, and the control module detects a relationship between the ambient temperature and the first temperature threshold and a relationship between the effluent temperature and the second temperature threshold to obtain which set initial opening of the auxiliary loop pipeline is applicable under the current working condition; when the detected ambient temperature is larger than or smaller than the maximum value or the minimum value of the first threshold value, taking the maximum value or the minimum value of the first threshold value; and when the detected water temperature is larger than or smaller than the maximum value or the minimum value of the second threshold value, taking the maximum value or the minimum value of the second threshold value.
In this example, the control module determines whether to open and close the auxiliary loop pipeline according to the third temperature threshold and the fourth temperature threshold. When the control module detects that the ambient temperature is higher than the third temperature threshold, the control module may not control the auxiliary loop pipeline to be opened before the compressor is started, for example, the control module may control the auxiliary loop pipeline to be started after the compressor is started for a period of time. Because the situations of over-low ambient temperature and over-high outlet water temperature do not exist, the possibility of overheating the compressor is low without applying the technology of opening the auxiliary loop pipeline in advance in the embodiment, so that the compressor is not easily damaged by overheating, and the auxiliary loop pipeline is controlled to be started after the compressor is started for a period of time. Under the condition that the auxiliary loop pipeline is opened, when the control module detects that the exhaust temperature is lower than a fourth temperature threshold value, the auxiliary loop pipeline can be closed. The working time of the auxiliary loop pipeline can be reduced, and the input power is reduced, so that the energy is saved.
The same technical effects as those of the air source heat pump system in the embodiment can be achieved by writing a computer program for executing the control method of the air source heat pump system in the embodiment, writing the computer program into a computer device or a storage medium, and executing the control method of the air source heat pump system in the embodiment when the computer program is read out and run.
It should be noted that, unless otherwise specified, when a feature is referred to as being "fixed" or "connected" to another feature, it may be directly fixed or connected to the other feature or indirectly fixed or connected to the other feature. Furthermore, the descriptions of upper, lower, left, right, etc. used in the present disclosure are only relative to the mutual positional relationship of the constituent parts of the present disclosure in the drawings. As used in this disclosure, the singular forms "a", "an", and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. In addition, unless defined otherwise, all technical and scientific terms used in this example have the same meaning as commonly understood by one of ordinary skill in the art. The terminology used in the description of the embodiments herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used in this embodiment, the term "and/or" includes any combination of one or more of the associated listed items.
It will be understood that, although the terms first, second, third, etc. may be used herein to describe various elements, these elements should not be limited by these terms. These terms are only used to distinguish one element of the same type from another. For example, a first element could be termed a second element, and, similarly, a second element could be termed a first element, without departing from the scope of the present disclosure. The use of any and all examples, or exemplary language ("e.g.," such as "or the like") provided with this embodiment is intended merely to better illuminate embodiments of the invention and does not pose a limitation on the scope of the invention unless otherwise claimed.
It should be recognized that embodiments of the present invention can be realized and implemented by computer hardware, a combination of hardware and software, or by computer instructions stored in a non-transitory computer readable memory. The methods may be implemented in a computer program using standard programming techniques, including a non-transitory computer-readable storage medium configured with the computer program, where the storage medium so configured causes a computer to operate in a specific and predefined manner, according to the methods and figures described in the detailed description. Each program may be implemented in a high level procedural or object oriented programming language to communicate with a computer system. However, the program(s) can be implemented in assembly or machine language, if desired. In any case, the language may be a compiled or interpreted language. Furthermore, the program can be run on a programmed application specific integrated circuit for this purpose.
Further, operations of processes described in this embodiment can be performed in any suitable order unless otherwise indicated herein or otherwise clearly contradicted by context. The processes described in this embodiment (or variations and/or combinations thereof) may be performed under the control of one or more computer systems configured with executable instructions, and may be implemented as code (e.g., executable instructions, one or more computer programs, or one or more applications) collectively executed on one or more processors, by hardware, or combinations thereof. The computer program includes a plurality of instructions executable by one or more processors.
Further, the method may be implemented in any type of computing platform operatively connected to a suitable interface, including but not limited to a personal computer, mini computer, mainframe, workstation, networked or distributed computing environment, separate or integrated computer platform, or in communication with a charged particle tool or other imaging device, and the like. Aspects of the invention may be embodied in machine-readable code stored on a non-transitory storage medium or device, whether removable or integrated into a computing platform, such as a hard disk, optically read and/or write storage medium, RAM, ROM, or the like, such that it may be read by a programmable computer, which when read by the storage medium or device, is operative to configure and operate the computer to perform the procedures described herein. Further, the machine-readable code, or portions thereof, may be transmitted over a wired or wireless network. The invention described in this embodiment includes these and other different types of non-transitory computer-readable storage media when such media include instructions or programs that implement the steps described above in conjunction with a microprocessor or other data processor. The invention also includes the computer itself when programmed according to the methods and techniques described herein.
A computer program can be applied to input data to perform the functions described in the present embodiment to convert the input data to generate output data that is stored to a non-volatile memory. The output information may also be applied to one or more output devices, such as a display. In a preferred embodiment of the invention, the transformed data represents physical and tangible objects, including particular visual depictions of physical and tangible objects produced on a display.
The above description is only a preferred embodiment of the present invention, and the present invention is not limited to the above embodiment, and any modifications, equivalent substitutions, improvements, etc. within the spirit and principle of the present invention should be included in the protection scope of the present invention as long as the technical effects of the present invention are achieved by the same means. The invention is capable of other modifications and variations in its technical solution and/or its implementation, within the scope of protection of the invention.
Claims (10)
1. An air source heat pump system, characterized in that the air source heat pump system comprises:
a compressor; the compressor includes a first refrigerant interface, a second refrigerant interface, and a third refrigerant interface; the refrigerant flow directions of the first refrigerant interface and the second refrigerant interface are opposite, and the refrigerant flow directions of the second refrigerant interface and the third refrigerant interface are the same;
a main loop line; one end of the main loop pipeline is connected with the first refrigerant interface, and the other end of the main loop pipeline is connected with the second refrigerant interface;
an auxiliary loop line; one end of the auxiliary loop pipeline is communicated with the middle position of the main loop pipeline, and the other end of the auxiliary loop pipeline is connected with the third refrigerant interface;
an economizer; the main loop pipeline and the auxiliary loop pipeline exchange heat through the economizer;
a control module; the control module is used for controlling the auxiliary loop pipeline to be opened before the compressor is started.
2. The air-source heat pump system of claim 1, wherein said controlling said auxiliary circuit line to open prior to starting said compressor comprises:
and before the compressor is started, controlling the auxiliary loop pipeline to be opened at an initial opening degree.
3. The air-source heat pump system of claim 1, wherein said controlling said auxiliary circuit line to open prior to starting said compressor comprises:
predicting the starting time of the compressor to obtain the predicted starting time;
and controlling the auxiliary loop pipeline to be opened at an initial opening degree in a first time period before the predicted starting time.
4. The air source heat pump system of claim 3, wherein the predicting the start-up time of the compressor, obtaining the predicted start-up time, comprises:
the water flow detection time is a first time period;
the starting delay of the fan is a second time period;
the shortest shutdown time of the compressor is a third time period;
the starting time of the compressor is the time when the first time interval, the second time interval and the third time interval are met simultaneously.
5. The air source heat pump system of claim 3, wherein the predicting the start-up time of the compressor, obtaining the predicted start-up time, comprises:
recording a plurality of actual start times of the compressor;
establishing a prediction model according to the actual starting times;
determining the predicted launch time according to the predictive model.
6. The air-source heat pump system of any of claims 2-5, wherein the control module is further configured to:
acquiring an ambient temperature and an effluent temperature;
and determining the initial opening according to the environment temperature and the outlet water temperature.
7. The air-source heat pump system according to any one of claims 1-5, wherein said controlling said auxiliary circuit line to open prior to starting said compressor comprises:
acquiring an ambient temperature and an effluent temperature;
and when the ambient temperature is lower than a first temperature threshold and the outlet water temperature is higher than a second temperature threshold, controlling the auxiliary loop pipeline to be started before the compressor is started, otherwise, controlling the auxiliary loop pipeline to be started after the compressor is started for a period of time.
8. A control method of an air source heat pump system is characterized in that:
the air source heat pump system includes:
a compressor; the compressor includes a first refrigerant interface, a second refrigerant interface, and a third refrigerant interface; in the same working mode of the compressor, the refrigerant flow directions of the first refrigerant interface and the second refrigerant interface are opposite, and the refrigerant flow directions of the second refrigerant interface and the third refrigerant interface are the same;
a main loop line; one end of the main loop pipeline is connected with the first refrigerant interface, and the other end of the main loop pipeline is connected with the second refrigerant interface;
an auxiliary loop line; one end of the auxiliary loop pipeline is communicated with the middle position of the main loop pipeline, and the other end of the auxiliary loop pipeline is connected with the third refrigerant interface;
an economizer; the main loop pipeline and the auxiliary loop pipeline exchange heat through the economizer;
the control method comprises the following steps:
and controlling the auxiliary loop pipeline to be opened before the compressor is started.
9. A computer device comprising a memory for storing at least one program and a processor for loading the at least one program to perform the method of controlling the air source heat pump system of claim 8.
10. A storage medium having stored therein a processor-executable program, wherein the processor-executable program is configured to perform the method of controlling an air source heat pump system according to claim 8 when executed by a processor.
Priority Applications (1)
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Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11118266A (en) * | 1997-10-21 | 1999-04-30 | Daikin Ind Ltd | Refrigerant circuit |
| US20120102779A1 (en) * | 2010-10-29 | 2012-05-03 | Beers David G | Apparatus and method for refrigeration cycle elevation by modification of cycle start condition |
| CN106871486A (en) * | 2017-04-24 | 2017-06-20 | 大连中星科技开发有限公司 | Control method for electronic expansion valve and air source heat pump system |
| CN207230987U (en) * | 2017-07-31 | 2018-04-13 | 广东美芝制冷设备有限公司 | A kind of air-conditioning system and air conditioner |
| CN208238303U (en) * | 2018-05-18 | 2018-12-14 | 浙江国祥股份有限公司 | A kind of low-temperature air source heat pump Gas-supplying enthalpy-increasing system |
| CN109751723A (en) * | 2018-12-20 | 2019-05-14 | 珠海格力电器股份有限公司 | A kind of heat pump system and its control method |
| CN110726268A (en) * | 2019-11-13 | 2020-01-24 | 广东美的暖通设备有限公司 | Outdoor system, heat pump system, and method for controlling heat pump system |
| CN113432336A (en) * | 2021-04-26 | 2021-09-24 | 深圳市深蓝电子股份有限公司 | Enhanced vapor injection air source heat pump system and dynamic exhaust superheat degree control method |
| CN113758067A (en) * | 2021-09-27 | 2021-12-07 | 浙江中广电器股份有限公司 | Low-temperature heat pump spray enthalpy control method |
-
2021
- 2021-12-17 CN CN202111550750.2A patent/CN114322369B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11118266A (en) * | 1997-10-21 | 1999-04-30 | Daikin Ind Ltd | Refrigerant circuit |
| US20120102779A1 (en) * | 2010-10-29 | 2012-05-03 | Beers David G | Apparatus and method for refrigeration cycle elevation by modification of cycle start condition |
| CN106871486A (en) * | 2017-04-24 | 2017-06-20 | 大连中星科技开发有限公司 | Control method for electronic expansion valve and air source heat pump system |
| CN207230987U (en) * | 2017-07-31 | 2018-04-13 | 广东美芝制冷设备有限公司 | A kind of air-conditioning system and air conditioner |
| CN208238303U (en) * | 2018-05-18 | 2018-12-14 | 浙江国祥股份有限公司 | A kind of low-temperature air source heat pump Gas-supplying enthalpy-increasing system |
| CN109751723A (en) * | 2018-12-20 | 2019-05-14 | 珠海格力电器股份有限公司 | A kind of heat pump system and its control method |
| CN110726268A (en) * | 2019-11-13 | 2020-01-24 | 广东美的暖通设备有限公司 | Outdoor system, heat pump system, and method for controlling heat pump system |
| CN113432336A (en) * | 2021-04-26 | 2021-09-24 | 深圳市深蓝电子股份有限公司 | Enhanced vapor injection air source heat pump system and dynamic exhaust superheat degree control method |
| CN113758067A (en) * | 2021-09-27 | 2021-12-07 | 浙江中广电器股份有限公司 | Low-temperature heat pump spray enthalpy control method |
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