Operation control method and device of heat pump unit, heat pump unit and medium

Abstract

The invention discloses an operation control method and device of a heat pump unit, the heat pump unit and a medium. The invention relates to the technical field of heat pump units. The method comprises the steps that the target water outlet temperature is determined according to the obtained working mode, environment temperature and set temperature; and the real-time outlet water temperature and the indoor temperature are obtained, and the heat pump unit is adjusted according to the working mode, the real-time outlet water temperature, the indoor temperature, the set temperature and the target outlet water temperature. The heat pump unit is adjusted according to the working mode, the real-time water outlet temperature, the indoor temperature, the set temperature and the target water outlet temperature, so that the water inlet and outlet temperature difference of the heat pump unit in the operation process is within the required range, and normal and safe operation of the heat pump unit under all working conditions is guaranteed; and the service life of the heat pump unit is prolonged.

Description

Technical Field

[0001] The present invention relates to the field of heat pump unit technology, and in particular to a heat pump unit operation control method, device, heat pump unit and medium. Background Technology

[0002] For heat pump units, maintaining the inlet and outlet water temperature difference (hereinafter referred to as "inlet and outlet water temperature difference") within a reasonable range is crucial, regardless of whether the unit is operating in cooling or heating mode. An excessively large inlet and outlet water temperature difference is often a signal of unfavorable operating conditions, which may mean insufficient water flow (unable to remove enough heat), performance degradation of core components such as the compressor, etc. Operating under such conditions for a long time will, at best, lead to a decrease in cooling / heating capacity, a significant reduction in energy efficiency, and a significant increase in operating energy consumption; at worst, it may cause irreversible serious failures such as compressor burnout. Therefore, the "excessive temperature difference between inlet and outlet water protection" logic is generally designed as one of the important safety mechanisms of heat pump control systems. Its core principle is to monitor the temperature difference between the inlet and outlet water of the unit in real time. When the temperature difference between the inlet and outlet water exceeds the preset safety threshold (i.e., the protection value) and continues for a period of time, it is determined to be an abnormal operating condition and will trigger protection actions (such as frequency reduction, shutdown, and alarm). The purpose is to force the unit out of the dangerous operating condition, thereby ensuring the safety of key equipment (especially the compressor) and extending the overall service life of the unit. However, under different ambient temperatures, the unit's capacity may cause the temperature difference between the inlet and outlet water to fail to reach the protection value or frequently exceed the protection value, thus failing to play a real protective role, reducing the reliability and effectiveness of the protection, and failing to ensure the normal and safe operation of the unit under all operating conditions. Summary of the Invention

[0003] This invention provides a method, device, heat pump unit, and medium for operating control of a heat pump unit, aiming to solve the problem that existing heat pump units cannot operate normally and safely under all operating conditions.

[0004] In a first aspect, embodiments of the present invention provide an operation control method for a heat pump unit, comprising:

[0005] The target outlet water temperature is determined based on the obtained operating mode, ambient temperature, and set temperature.

[0006] The system acquires real-time outlet water temperature and indoor temperature, and adjusts the heat pump unit according to the operating mode, the real-time outlet water temperature, the indoor temperature, the set temperature, and the target outlet water temperature.

[0007] Secondly, embodiments of the present invention also provide an operation control device for a heat pump unit, comprising:

[0008] The acquisition and determination unit is used to determine the target outlet water temperature based on the acquired operating mode, ambient temperature, and set temperature.

[0009] An acquisition adjusting unit is configured to acquire a real-time outlet water temperature and an indoor temperature, and adjust the heat pump unit according to the working mode, the real-time outlet water temperature, the indoor temperature, the set temperature and the target outlet water temperature.

[0010] In a third aspect, an embodiment of the present application further provides a heat pump unit, comprising a memory and a processor, wherein the memory stores a computer program, and the processor executes the computer program to implement the method.

[0011] In a fourth aspect, an embodiment of the present application further provides a computer readable storage medium, wherein the storage medium stores a computer program, and the computer program, when executed by a processor, can implement the method.

[0012] Embodiments of the present application provide a heat pump unit operation control method, device, heat pump unit and medium. The method comprises: determining a target outlet water temperature according to an acquired working mode, environment temperature and set temperature; acquiring a real-time outlet water temperature and an indoor temperature, and adjusting the heat pump unit according to the working mode, the real-time outlet water temperature, the indoor temperature, the set temperature and the target outlet water temperature. The technical solution of the embodiments of the present application adjusts the heat pump unit according to the working mode, the real-time outlet water temperature, the indoor temperature, the set temperature and the target outlet water temperature, so that the inlet and outlet water temperature difference of the heat pump unit in the operation process is within the required range, which not only ensures the normal and safe operation of the heat pump unit under all working conditions, but also prolongs the service life of the heat pump unit. BRIEF DESCRIPTION OF DRAWINGS

[0013] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following will briefly introduce the drawings needed in the embodiment description. Obviously, the drawings in the following description are some embodiments of the present application, and other drawings can also be obtained by those skilled in the art without creative labor.

[0014] Figure 1 A flowchart of a heat pump unit operation control method provided by an embodiment of the present application is shown in the figure;

[0015] Figure 2 A structure diagram of a heat pump unit in a heat pump unit operation control method provided by an embodiment of the present application is shown in the figure;

[0016] Figure 3 A sub-flowchart of a heat pump unit operation control method provided by an embodiment of the present application is shown in the figure;

[0017] Figure 4 Another sub-flowchart of a heat pump unit operation control method provided by an embodiment of the present application is shown in the figure;

[0018] Figure 5 is a flow chart of a method for controlling operation of a heat pump unit in a heating mode according to an embodiment of the present application;

[0019] Figure 6 is a flow chart of a method for controlling operation of a heat pump unit in a cooling mode according to an embodiment of the present application;

[0020] Figure 7 is a schematic block diagram of a device for controlling operation of a heat pump unit according to an embodiment of the present application;

[0021] Figure 8 is a schematic block diagram of a heat pump unit according to an embodiment of the present application.

[0022] Reference Signs:

[0023] 1, compressor; 2, four-way valve; 3, finned heat exchanger; 4, first throttling valve; 5, second throttling valve; 6, double pipe heat exchanger; 7, gas-liquid separator; 8, circulating water pump; 9, unit inlet water temperature sensing bulb; 10, unit outlet water temperature sensing bulb; 11, exhaust temperature sensing bulb; 12, drain valve; 13, indoor inlet water stop valve; 14, display; 15, indoor outlet water stop valve; 16, unit inlet water stop valve; 17, unit outlet water stop valve. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, but not all of the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of the present application.

[0025] It should be understood that the terms "comprise" and "include" as used in the specification and the appended claims indicate the presence of the described features, integers, steps, operations, elements, and / or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and / or groups thereof.

[0026] It should also be understood that the terms used in the present application specification are only for the purpose of describing particular embodiments and are not intended to limit the present application. As used in the present application specification and the appended claims, the singular forms "a", "an" and "the" are intended to include the plural forms unless the context clearly indicates otherwise.

[0027] It should also be further understood that the term "and / or" as used in the specification and in the claims, if any, means any of the conjunctive or disjunctive sense and / or all possible combinations of the conjunctive or disjunctive sense and includes all possible combinations.

[0028] As used in the specification and in the claims, the term "if' can be interpreted as meaning "when" or "once" or "in response to a determination" or "in response to a detection" depending on the context. Similarly, the phrase "if determined" or "if detected [the described condition or event]" can be interpreted to mean "once determined" or "in response to a determination" or "once detected [the described condition or event]" or "in response to a detection [the described condition or event]" depending on the context.

[0029] Reference is made to Figure 1 , Figure 1 is a flowchart of a method for controlling operation of a heat pump unit according to an embodiment of the present application. The method for controlling operation of the heat pump unit will be described in detail below. As shown in Figure 1 , the method comprises the following steps S110-S120.

[0030] S110, determining a target outlet water temperature according to the obtained working mode, ambient temperature and set temperature.

[0031] In the embodiment of the present application, the control module in the heat pump unit first obtains the working mode, ambient temperature and set temperature, and then determines the target outlet water temperature according to the working mode, ambient temperature and set temperature. It should be noted that, in the embodiment, the heat pump unit is divided into a heat source side and a user side, as shown in Figure 2 , wherein the heat source side comprises a compressor 1, a four-way valve 2, a finned heat exchanger 3, a first throttling valve 4, a second throttling valve 5, a double-pipe heat exchanger 6, a gas-liquid separator 7, a unit inlet water temperature bulb 9 and a unit outlet water temperature bulb 10; and the user side comprises a circulating water pump 8, an exhaust temperature bulb 11, a drain valve 12, an indoor inlet water stop valve 13, a display 14, an indoor outlet water stop valve 15, a unit inlet water stop valve 16 and a unit outlet water stop valve 17. It should be noted that, in the embodiment, the real-time outlet water temperature is detected by the unit outlet water temperature bulb 10, and the first throttling valve 4 is used when the heat pump unit is in a heating mode, and the second throttling valve 5 is used when the heat pump unit is in a cooling mode.

[0032] In an embodiment, for example, the embodiment, as shown in Figure 3 , step S110 can specifically comprise steps S111-S112:

[0033] S111, if the working mode is the heating mode, determining the target outlet water temperature according to the environment temperature, the set temperature, a preset heating environment temperature interval and a preset heating temperature interval;

[0034] S112, if the working mode is the cooling mode, determining the target outlet water temperature according to the environment temperature, the set temperature, a preset cooling environment temperature interval and a preset cooling temperature interval.

[0035] In the embodiment of the present application, the preset heating environment temperature range includes a first preset heating environment temperature range, a second preset heating environment temperature range and a third preset heating environment temperature range, the preset heating temperature range includes a first preset heating temperature range and a second preset heating temperature range, and step S111 includes: if the environment temperature is in the first preset heating environment temperature range and the set temperature is in the first preset heating temperature range, setting the target outlet water temperature as a first heating outlet water temperature value; if the environment temperature is in the first preset heating environment temperature range and the set temperature is in the second preset heating temperature range, setting the target outlet water temperature as a second heating outlet water temperature value; if the environment temperature is in the second preset heating environment temperature range and the set temperature is in the first preset heating temperature range, setting the target outlet water temperature as the second heating outlet water temperature value; if the environment temperature is in the second preset heating environment temperature range and the set temperature is in the second preset heating temperature range, setting the target outlet water temperature as a third heating outlet water temperature value; if the environment temperature is in the third preset heating environment temperature range and the set temperature is in the first preset heating temperature range, setting the target outlet water temperature as the third heating outlet water temperature value; and if the environment temperature is in the third preset heating environment temperature range and the set temperature is in the second preset heating temperature range, setting the target outlet water temperature as a fourth heating outlet water temperature value. It should be noted that in the embodiment, the first preset heating environment temperature range is -25℃<T0≤-18℃ or -7℃<T0≤18℃, the second preset heating environment temperature range is -18℃<T0≤-7℃, and the third preset heating environment temperature range is -30℃<T0≤-25℃, the first preset heating temperature range is 18℃<Ts≤25℃, and the second preset heating temperature range is 25℃<Ts≤35℃. Specifically, when -25℃<T0≤-18℃ or -7℃<T0≤18℃ and 18℃<Ts≤25℃, the target outlet water temperature Tw is set as the first heating outlet water temperature value 35℃, and the capacity in the partial load can meet the load demand; when -25℃<T0≤-18℃ or -7℃<T0≤18℃ and 25℃<Ts≤35℃, the target outlet water temperature Tw is set as the second heating outlet water temperature value 41℃, and the capacity in the nominal heating can meet the load demand. When -18℃<T0≤-7℃ and 18℃<Ts≤25℃, the target outlet water temperature Tw is set as the second heating outlet water temperature 41℃, and the capacity in the nominal heating can meet the load demand; and when -18℃<T0≤-7℃ and 25℃<Ts≤35℃, the target outlet water temperature Tw is set as the third heating outlet water temperature 45℃, and the capacity in the rated heating can meet the load demand.When -30℃ < To≤ -25℃, 18℃ < Ts≤ 25℃, the target outlet water temperature Tw is set as the third heating outlet water temperature 45℃, and the capacity in the rated heating mode is sufficient to meet the load demand; when -30℃ < To≤ -25℃, 25℃ < Ts≤ 35℃, the target outlet water temperature Tw is set as the fourth heating outlet water temperature 50℃. It should be further pointed out that in the present embodiment, in the heating mode, the environmental temperature test range of the unit is generally between -35 and 18℃, the set temperature is between 18 and 35℃, and the target outlet water temperature range of the unit in normal operation is between 30 and 60℃. When the environmental temperature is between -25 and 18℃, the capacity of the unit is sufficient to match the demand of the user, and below -25℃, the unit is easily affected by humidity, use time, etc.

[0036] Further, the preset refrigeration environment temperature interval first preset refrigeration environment temperature interval and second preset refrigeration environment temperature interval, the preset refrigeration temperature interval includes first preset refrigeration temperature interval, second preset refrigeration temperature interval, third preset refrigeration temperature interval and fourth preset refrigeration temperature interval, step S112 includes: if the environment temperature is in the first preset refrigeration environment temperature interval and the set temperature is in the first preset refrigeration temperature interval, the target outlet water temperature is set to the first refrigeration outlet water temperature value; if the environment temperature is in the first preset refrigeration environment temperature interval and the set temperature is in the second preset refrigeration temperature interval, the target outlet water temperature is set to the second refrigeration outlet water temperature value; if the environment temperature is in the second preset refrigeration environment temperature interval and the set temperature is in the third preset refrigeration temperature interval, the target outlet water temperature is set to the third refrigeration outlet water temperature value; if the environment temperature is in the second preset refrigeration environment temperature interval and the set temperature is in the fourth preset refrigeration temperature interval, the target outlet water temperature is set to the fourth refrigeration outlet water temperature value. It should be noted that in the embodiment, the first preset refrigeration environment temperature interval is 40℃<To≤48℃ or 18℃<T0≤30℃, the second preset refrigeration environment temperature interval is 30℃<To≤40℃, the first preset refrigeration temperature interval, the second preset refrigeration temperature interval, the third preset refrigeration temperature interval and the fourth preset refrigeration temperature interval are 18℃<Ts≤22℃, 22℃<Ts≤25℃, 18℃<Ts≤22℃ and 22℃<Ts≤25℃ respectively, specifically, when 40℃<To≤48℃ or 18℃<T0≤30℃, 18℃<Ts≤22℃, the target outlet water temperature Tw is set to the first refrigeration outlet water temperature value 11℃, the capacity when using partial load is sufficient to meet the load demand; when 40℃<To≤48℃ or 18℃<T0≤30℃, 22℃<Ts≤25℃, the target outlet water temperature Tw is set to the second refrigeration outlet water temperature value 15℃, the capacity when using nominal heating is sufficient to meet the load demand. When 30℃<To≤40℃, 18℃<Ts≤22℃, the target outlet water temperature Tw is set to the third refrigeration outlet water temperature value 15℃, the capacity when using partial load is sufficient to meet the load demand; when 30℃<To≤40℃, 22℃<Ts≤25℃, the target outlet water temperature Tw is set to the fourth refrigeration outlet water temperature value 20℃, the capacity when using nominal heating is sufficient to meet the load demand. It should be further noted that in the embodiment, in the refrigeration mode, the test range of the environment temperature of the unit is generally between 18-48℃, the set temperature is between 18-25℃, the target outlet water temperature range of the unit is 7-22℃, the environment temperature is between the test range, and the capacity of the unit is sufficient to match the user's demand.

[0037] S120, acquire the real-time outlet water temperature and the indoor temperature, and adjust the heat pump unit according to the working mode, the real-time outlet water temperature, the indoor temperature, the set temperature and the target outlet water temperature.

[0038] In the embodiment of the present application, after the target outlet water temperature is set, as shown in Figure 4 S120, acquire the real-time outlet water temperature and the indoor temperature, and adjust the heat pump unit according to the working mode, the real-time outlet water temperature, the indoor temperature, the set temperature and the target outlet water temperature. It should be noted that in the embodiment, if the target outlet water temperature is not the fourth heating outlet water temperature value, it is determined that the control condition is met; if the target outlet water temperature is the fourth heating outlet water temperature value, and after the real-time outlet water temperature reaches the target outlet water temperature, the indoor temperature can reach the set temperature within 5 minutes, it is determined that the control condition is met; if the target outlet water temperature is the fourth heating outlet water temperature value, and after the real-time outlet water temperature reaches the target outlet water temperature, the indoor temperature cannot reach the set temperature within 5 minutes, it is determined that the control condition is not met. When the control condition is not met, the target outlet water temperature is increased by a preset adjustment temperature every first preset detection time, and when the target outlet water temperature reaches a preset maximum outlet water temperature, and the indoor temperature is less than the set temperature, the heat pump unit is controlled to alarm. That is, when the control condition is not met, Tw is increased by 2℃ every 2 minutes until the indoor temperature can reach the range of the set temperature. If Tw reaches 60℃, and the indoor temperature still cannot reach the range of the set temperature, the unit issues a warning. It should be further noted that in the embodiment, the first preset detection time is 2 minutes, the second preset detection time is 5 minutes, and the preset adjustment temperature is 2℃. When the control condition is met, the relationship between Tw and the real-time outlet water temperature Tw* is detected every 2 minutes, and when Tw*=Tw is detected, the relationship between the indoor temperature Ts* and the set temperature Ts is detected every 5 minutes.

[0039] Further, the step 124 comprises: if the working mode is the heating mode and the comparison result is that the indoor temperature is less than the set temperature, allowing the real-time outlet water temperature to be less than the target outlet water temperature within a preset time, when the preset time is exceeded, increasing the target outlet water temperature by a preset adjustment temperature every first preset detection time until the real-time outlet water temperature is not less than the target outlet water temperature; if the working mode is the heating mode and the comparison result is that the indoor temperature is not less than the set temperature, maintaining the real-time outlet water temperature detected currently to be less than the real-time outlet water temperature detected last time, and allowing the real-time outlet water temperature to be greater than the target outlet water temperature within the preset time, when the preset time is exceeded, determining that the heat pump unit is in a large water temperature difference state, and after satisfying a prediction number of times of determining that the heat pump unit is in the large water temperature difference state, controlling the heat pump unit to stop; if the working mode is the cooling mode and the comparison result is that the indoor temperature is greater than the set temperature, allowing the real-time outlet water temperature to be greater than the target outlet water temperature within the preset time, when the preset time is exceeded, decreasing the target outlet water temperature by the preset adjustment temperature every first preset detection time until the real-time outlet water temperature is not greater than the target outlet water temperature; if the working mode is the cooling mode and the comparison result is that the indoor temperature is not greater than the set temperature, maintaining the real-time outlet water temperature detected currently to be greater than the real-time outlet water temperature detected last time, and allowing the real-time outlet water temperature to be less than the target outlet water temperature within the preset time, when the preset time is exceeded, determining that the heat pump unit is in the large water temperature difference state, and performing the step of controlling the heat pump unit to stop after satisfying the prediction number of times of determining that the heat pump unit is in the large water temperature difference state. It should be noted that in the embodiment, when the working mode is the heating mode and Ts* < Ts, only allowing Tw* < Tw within three detection intervals, that is, allowing Tw* < Tw within a preset time of 6 min, otherwise, after the third interval, increasing Tw by 2℃ (the highest temperature does not exceed 60℃) every detection interval until Tw* ≥ Tw. Tw* ≥ Tw belongs to a normal water temperature difference range, that is, a high outlet water temperature causes the terminal equipment to rapidly increase the indoor temperature; when the working mode is the heating mode and Ts* ≥ Ts, adjusting the unit water temperature to avoid the unit being in overload operation all the time, maintaining ΔTw* = Tw*n-Tw*(n-1) < 0 (Tw*n is the value of Tw* detected at the nth time), that is, maintaining the real-time outlet water temperature detected currently to be less than the real-time outlet water temperature detected last time, allowing Tw* > Tw within three detection intervals (allowing Tw* > Tw within 6 min), after the three detection intervals, if Tw* > Tw is not satisfied, it is determined to be in the large water temperature difference state, after being determined to be in the large water temperature difference state for the first time, if it is still in the large water temperature difference state after three detection intervals, the heat pump unit is controlled to stop.It should be noted that in the embodiment, when the working mode is the cooling mode and Ts* > Ts, only Tw* > Tw in the third detection interval (allowed within 6 min), otherwise, Tw is reduced by 2℃ (the minimum is not more than 7℃) every detection interval after the third interval until Tw* ≥ Tw. Tw* ≤ Tw belongs to the normal water temperature difference range, that is, the high outlet water temperature makes the terminal equipment quickly warm up to increase the indoor temperature; when the working mode is the cooling mode and Ts* ≤ Ts, the unit water temperature is adjusted to avoid the unit being in overload operation all the time, and ΔTw* = Tw*n-Tw*(n-1) > 0 is maintained, that is, the current detected real-time outlet water temperature is greater than the last detected real-time outlet water temperature, only Tw* < Tw in the third detection interval, and if Tw* < Tw is not met after the third detection interval, it is determined as the large water temperature difference state, and after being determined as the large water temperature difference state for the first time, if the large water temperature difference state still exists after the third detection interval, the heat pump unit is controlled to stop running for protection.

[0040] Please refer to Figure 5 and Figure 6 , Figure 5 is a flowchart of a running control method of a heat pump unit in the heating mode provided by an embodiment of the present application, Figure 6 is a flowchart of a running control method of a heat pump unit in the cooling mode provided by an embodiment of the present application, in Figure 5 and Figure 6 , the target outlet water temperature is determined according to the working mode, the environment temperature and the set temperature, and then the heat pump unit is adjusted according to the real-time outlet water temperature, the indoor temperature, the set temperature and the target outlet water temperature, and the specific implementation process is as described above, which is not repeated here for the sake of simplicity.

[0041] As can be seen above, in the embodiment, the target outlet water temperature is determined according to the working mode, the environment temperature and the set temperature, and then the heat pump unit is adjusted according to the working mode, the real-time outlet water temperature, the indoor temperature, the set temperature and the target outlet water temperature, so that the inlet and outlet water temperature difference of the heat pump unit in the running process is within the required range, which not only ensures the normal and safe running of the heat pump unit under all working conditions, but also prolongs the service life of the heat pump unit.

[0042] Figure 7 is a schematic block diagram of a running control device 200 of a heat pump unit provided by an embodiment of the present application. As Figure 7 indicated, corresponding to the above running control method of the heat pump unit, the present application further provides a running control device 200 of a heat pump unit. The running control device 200 of the heat pump unit comprises units for executing the above running control method of the heat pump unit, and the device can be configured in the heat pump unit. Specifically, please refer to Figure 7The operation control device 200 of the heat pump unit comprises an acquisition determination unit 201 and an acquisition adjustment unit 202.

[0043] The acquisition determination unit 201 is configured to determine a target outlet water temperature according to the acquired working mode, the environment temperature and the set temperature; and the acquisition adjustment unit 202 is configured to acquire a real-time outlet water temperature and an indoor temperature, and adjust the heat pump unit according to the working mode, the real-time outlet water temperature, the indoor temperature, the set temperature and the target outlet water temperature.

[0044] In some embodiments, for example in the present embodiment, the acquisition determination unit 201 comprises a first determination unit and a second determination unit.

[0045] The first determination unit is configured to determine the target outlet water temperature according to the environment temperature, the set temperature, a preset heating environment temperature interval and a preset heating temperature interval if the working mode is the heating mode; and the second determination unit is configured to determine the target outlet water temperature according to the environment temperature, the set temperature, a preset cooling environment temperature interval and a preset cooling temperature interval if the working mode is the cooling mode.

[0046] In some embodiments, for example in the present embodiment, the first determination unit is further configured to: set the target outlet water temperature as a first heating outlet water temperature value if the environment temperature is in the first preset heating environment temperature interval and the set temperature is in the first preset heating temperature interval; set the target outlet water temperature as a second heating outlet water temperature value if the environment temperature is in the first preset heating environment temperature interval and the set temperature is in the second preset heating temperature interval; set the target outlet water temperature as the second heating outlet water temperature value if the environment temperature is in the second preset heating environment temperature interval and the set temperature is in the first preset heating temperature interval; set the target outlet water temperature as a third heating outlet water temperature value if the environment temperature is in the second preset heating environment temperature interval and the set temperature is in the second preset heating temperature interval; set the target outlet water temperature as the third heating outlet water temperature value if the environment temperature is in the third preset heating environment temperature interval and the set temperature is in the first preset heating temperature interval; and set the target outlet water temperature as a fourth heating outlet water temperature value if the environment temperature is in the third preset heating environment temperature interval and the set temperature is in the second preset heating temperature interval.

[0047] In some embodiments, such as the present embodiment, the second determining unit is further configured to: set the target outlet water temperature to a first refrigeration outlet water temperature value if the ambient temperature is in the first preset refrigeration ambient temperature range and the set temperature is in the first preset refrigeration temperature range; set the target outlet water temperature to a second refrigeration outlet water temperature value if the ambient temperature is in the first preset refrigeration ambient temperature range and the set temperature is in the second preset refrigeration temperature range; set the target outlet water temperature to a third refrigeration outlet water temperature value if the ambient temperature is in the second preset refrigeration ambient temperature range and the set temperature is in the third preset refrigeration temperature range; and set the target outlet water temperature to a fourth refrigeration outlet water temperature value if the ambient temperature is in the second preset refrigeration ambient temperature range and the set temperature is in the fourth preset refrigeration temperature range.

[0048] In some embodiments, such as the present embodiment, the obtaining adjusting unit 202 includes a detecting unit, a first comparing unit, a second comparing unit, an adjusting unit, and a controlling unit.

[0049] The detecting unit is configured to detect whether a control condition is met according to the target outlet water temperature, the real-time outlet water temperature, the indoor temperature, and the set temperature. The first comparing unit is configured to compare the real-time outlet water temperature and the target outlet water temperature every first preset detection time if the control condition is met. The second comparing unit is configured to compare the indoor temperature and the set temperature every second preset detection time to obtain a comparison result when the real-time outlet water temperature is equal to the target outlet water temperature. The adjusting unit is configured to adjust the heat pump unit according to the comparison result, the real-time outlet water temperature, the target outlet water temperature, and the working mode. The controlling unit is configured to increase the target outlet water temperature by a preset adjustment temperature every first preset detection time if the control condition is not met, and control the heat pump unit to alarm when the target outlet water temperature reaches a preset maximum outlet water temperature and the indoor temperature is less than the set temperature.

[0050] In some embodiments, such as the present embodiment, the adjusting unit is further configured to: if the working mode is the heating mode and the comparison result is that the indoor temperature is less than the set temperature, allow the real-time outlet water temperature to be less than the target outlet water temperature within a preset time, when the preset time is exceeded, increase the target outlet water temperature by a preset adjustment temperature every first preset detection time until the real-time outlet water temperature is not less than the target outlet water temperature; if the working mode is the heating mode and the comparison result is that the indoor temperature is not less than the set temperature, maintain the real-time outlet water temperature detected at present to be less than the real-time outlet water temperature detected at last time, and allow the real-time outlet water temperature to be greater than the target outlet water temperature within the preset time, when the preset time is exceeded, determine that the heat pump unit is in a large water temperature difference state, and after a predicted number of times of determining that the heat pump unit is in the large water temperature difference state are met, control the heat pump unit to stop; if the working mode is the cooling mode and the comparison result is that the indoor temperature is greater than the set temperature, allow the real-time outlet water temperature to be greater than the target outlet water temperature within the preset time, when the preset time is exceeded, decrease the target outlet water temperature by the preset adjustment temperature every first preset detection time until the real-time outlet water temperature is not greater than the target outlet water temperature; if the working mode is the cooling mode and the comparison result is that the indoor temperature is not greater than the set temperature, maintain the real-time outlet water temperature detected at present to be greater than the real-time outlet water temperature detected at last time, and allow the real-time outlet water temperature to be less than the target outlet water temperature within the preset time, when the preset time is exceeded, determine that the heat pump unit is in the large water temperature difference state, and perform the step of, after a predicted number of times of determining that the heat pump unit is in the large water temperature difference state are met, controlling the heat pump unit to stop.

[0051] The operation control device of the heat pump unit described above can be implemented in the form of a computer program which can run on a heat pump unit as shown in Figure 8 .

[0052] Please refer to Figure 8 , Figure 8 is a schematic block diagram of a heat pump unit provided by an embodiment of the present application. The heat pump unit 300 is a device with dialect recognition function.

[0053] Please refer to Figure 8 , the heat pump unit 300 includes a processor 302, a memory and a network interface 305 connected through a system bus 301, wherein the memory can include a non-volatile storage medium 303 and an internal memory 304.

[0054] The non-volatile storage medium 303 can store an operating system 3031 and a computer program 3032. The computer program 3032, when executed, can cause the processor 302 to perform the operation control method of the heat pump unit.

[0055] The processor 302 is configured to provide computing and control capabilities to support the operation of the entire heat pump unit 300.

[0056] The memory 304 provides an environment for the execution of the computer program 3032 in the non-volatile storage medium 303. The computer program 3032, when executed by the processor 302, can cause the processor 302 to perform the operation control method of the heat pump unit.

[0057] The network interface 305 is configured to perform network communication with other devices. Those skilled in the art can understand that the network interface 305 can be implemented by a network card, a network adapter, a network controller, or the like. Figure 8 The structure shown in FIG. 3 is only a block diagram of part of the structure related to the scheme of the present application, and does not constitute a limitation on the heat pump unit 300 to which the scheme of the present application is applied. Specifically, the heat pump unit 300 can include more or fewer components than those shown in the figure, or combine certain components, or have a different arrangement of components.

[0058] The processor 302 is configured to execute the computer program 3032 stored in the memory to implement any of the embodiments of the operation control method of the heat pump unit.

[0059] It should be understood that, in the embodiments of the present application, the processor 302 can be a central processing unit (CPU), and the processor 302 can also be other general-purpose processors, digital signal processors (DSPs), application specific integrated circuits (ASICs), field-programmable gate arrays (FPGAs), or other programmable logic devices, discrete gates or transistor logic devices, discrete hardware components, or the like. The general-purpose processor can be a microprocessor or the processor can also be any conventional processor.

[0060] Those of ordinary skill in the art can understand that all or part of the processes in the above-mentioned embodiments can be completed by a computer program instructing related hardware. The computer program can be stored in a storage medium, which is a computer-readable storage medium. The computer program is executed by at least one processor in the computer system to implement the process steps of the above-mentioned embodiments.

[0061] Therefore, the application further provides a storage medium. The storage medium can be a computer readable storage medium. The storage medium stores a computer program. The computer program is executed by a processor to enable the processor to perform any embodiment of the operation control method of the heat pump unit.

[0062] The storage medium can be a U disk, a mobile hard disk, a read-only memory (ROM), a magnetic disk or an optical disk, or various computer readable storage media that can store program codes.

[0063] Those skilled in the art can appreciate that the units and algorithm steps of the examples described in combination with the embodiments disclosed herein can be realized by electronic hardware, computer software or a combination of both. In order to clearly illustrate the interchangeability of hardware and software, the components and steps of the examples have been described in general terms in the above description. Whether the functions are realized in hardware or software depends on the specific application and design constraints of the technical solution. The skilled person can use different methods to realize the described functions for each specific application, but such implementation should not be considered beyond the scope of the application.

[0064] In several embodiments provided by the application, it should be understood that the disclosed devices and methods can be implemented in other ways. For example, the device embodiments described above are only illustrative. For example, the division of each unit is only a logical functional division, and actual implementation can have another division manner. For example, a plurality of units or components can be combined or integrated into another system, or some features can be omitted or not executed.

[0065] The steps in the method embodiments of the application can be adjusted, combined and reduced in sequence according to actual needs. The units in the device embodiments of the application can be combined, divided and reduced according to actual needs. In addition, each functional unit in each embodiment of the application can be integrated in one processing unit, or each unit can exist physically, or two or more units can be integrated in one unit.

[0066] The integrated unit, if realized in the form of a software functional unit and sold or used as an independent product, can be stored in a storage medium. Based on this understanding, the technical solutions of the application essentially or say the parts that make contributions to the prior art, or the whole or part of the technical solutions can be embodied in the form of a software product. The computer software product is stored in a storage medium and includes a plurality of instructions for enabling a heat pump unit to execute all or part of the steps of the method described in each embodiment of the application.

[0067] In the above embodiments, the description of each embodiment is focused on, and the part not described in detail in a certain embodiment can be referred to the relevant description of other embodiments.

[0068] Obviously, those skilled in the art can make various modifications and variations to the present application without departing from the spirit and scope of the present application. Thus, these modifications and variations of the present application are also intended to be within the scope of the present application claims and their equivalents. Therefore, the present application is also intended to include these modifications and variations.

[0069] The above description is merely specific embodiments of the present application, but the protection scope of the present application is not limited thereto. Any person skilled in the art can easily think of various equivalent modifications or replacements within the technical range disclosed by the present application, and these modifications or replacements should be included in the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. A method of operating control of a heat pump unit, characterized by, The method comprises the following steps: determining a target outlet water temperature according to the obtained working mode, ambient temperature and set temperature; obtaining real-time outlet water temperature and indoor temperature, and adjusting the heat pump unit according to the working mode, real-time outlet water temperature, indoor temperature, set temperature and target outlet water temperature.

2. The method of claim 1, wherein, The step of determining the target outlet water temperature according to the obtained working mode, ambient temperature and set temperature comprises: if the working mode is a heating mode, determining the target outlet water temperature according to the ambient temperature, set temperature, preset heating ambient temperature interval and preset heating temperature interval; if the working mode is a cooling mode, determining the target outlet water temperature according to the ambient temperature, set temperature, preset cooling ambient temperature interval and preset cooling temperature interval.

3. The method of claim 2, wherein, The preset heating ambient temperature interval comprises a first preset heating ambient temperature interval, a second preset heating ambient temperature interval and a third preset heating ambient temperature interval, the preset heating temperature interval comprises a first preset heating temperature interval and a second preset heating temperature interval, and the step of determining the target outlet water temperature according to the ambient temperature, set temperature, preset heating ambient temperature interval and preset heating temperature interval comprises: if the ambient temperature is in the first preset heating ambient temperature interval and the set temperature is in the first preset heating temperature interval, setting the target outlet water temperature as a first heating outlet water temperature value; if the ambient temperature is in the first preset heating ambient temperature interval and the set temperature is in the second preset heating temperature interval, setting the target outlet water temperature as a second heating outlet water temperature value; if the ambient temperature is in the second preset heating ambient temperature interval and the set temperature is in the first preset heating temperature interval, setting the target outlet water temperature as the second heating outlet water temperature value; if the ambient temperature is in the second preset heating ambient temperature interval and the set temperature is in the second preset heating temperature interval, setting the target outlet water temperature as a third heating outlet water temperature value; if the ambient temperature is in the third preset heating ambient temperature interval and the set temperature is in the first preset heating temperature interval, setting the target outlet water temperature as the third heating outlet water temperature value; if the ambient temperature is in the third preset heating ambient temperature interval and the set temperature is in the second preset heating temperature interval, setting the target outlet water temperature as a fourth heating outlet water temperature value.

4. The method of claim 2, wherein, The preset cooling ambient temperature interval comprises a first preset cooling ambient temperature interval and a second preset cooling ambient temperature interval, the preset cooling temperature interval comprises a first preset cooling temperature interval, a second preset cooling temperature interval, a third preset cooling temperature interval and a fourth preset cooling temperature interval, and the step of determining the target outlet water temperature according to the ambient temperature, set temperature, preset cooling ambient temperature interval and preset cooling temperature interval comprises: If the environment temperature is in the first preset refrigeration environment temperature interval and the set temperature is in the first preset refrigeration temperature interval, the target outlet water temperature is set as a first refrigeration outlet water temperature value; If the environment temperature is in the first preset refrigeration environment temperature interval and the set temperature is in the second preset refrigeration temperature interval, the target outlet water temperature is set as a second refrigeration outlet water temperature value; If the environment temperature is in the second preset refrigeration environment temperature interval and the set temperature is in the third preset refrigeration temperature interval, the target outlet water temperature is set as a third refrigeration outlet water temperature value; If the environment temperature is in the second preset refrigeration environment temperature interval and the set temperature is in the fourth preset refrigeration temperature interval, the target outlet water temperature is set as a fourth refrigeration outlet water temperature value.

5. The method of claim 1, wherein, The step of adjusting the heat pump unit according to the working mode, the real-time outlet water temperature, the indoor temperature, the set temperature and the target outlet water temperature comprises: detecting whether a control condition is met according to the target outlet water temperature, the real-time outlet water temperature, the indoor temperature and the set temperature; if the control condition is met, comparing the real-time outlet water temperature and the target outlet water temperature every first preset detection time; when the real-time outlet water temperature is equal to the target outlet water temperature, comparing the indoor temperature and the set temperature every second preset detection time to obtain a comparison result; adjusting the heat pump unit according to the comparison result, the real-time outlet water temperature, the target outlet water temperature and the working mode.

6. The method of claim 5, wherein, The step of adjusting the heat pump unit according to the comparison result, the real-time outlet water temperature, the target outlet water temperature and the working mode comprises: if the working mode is the heating mode and the comparison result is that the indoor temperature is less than the set temperature, allowing the real-time outlet water temperature to be less than the target outlet water temperature within a preset time, and when the preset time is exceeded, increasing the target outlet water temperature by a preset adjustment temperature every first preset detection time until the real-time outlet water temperature is not less than the target outlet water temperature; if the working mode is the heating mode and the comparison result is that the indoor temperature is not less than the set temperature, maintaining the real-time outlet water temperature detected at present to be less than the real-time outlet water temperature detected at last time, and allowing the real-time outlet water temperature to be greater than the target outlet water temperature within the preset time, and when the preset time is exceeded, determining that the heat pump unit is in a large water temperature difference state, and after a preset number of times of determining that the heat pump unit is in the large water temperature difference state, controlling the heat pump unit to stop; if the working mode is the refrigeration mode and the comparison result is that the indoor temperature is greater than the set temperature, allowing the real-time outlet water temperature to be greater than the target outlet water temperature within the preset time, and when the preset time is exceeded, decreasing the target outlet water temperature by the preset adjustment temperature every first preset detection time until the real-time outlet water temperature is not greater than the target outlet water temperature; If the working mode is the refrigeration mode and the comparison result is that the indoor temperature is not greater than the set temperature, the current detected real-time outlet water temperature is maintained to be greater than the last detected real-time outlet water temperature, the real-time outlet water temperature is allowed to be less than the target outlet water temperature within the preset time, and when the preset time is exceeded, it is determined that the heat pump unit is in a large water temperature difference state, and the step of controlling the heat pump unit to stop after the predicted number of times of determining that the heat pump unit is in the large water temperature difference state is satisfied is performed.

7. The method of claim 5, wherein, The step of detecting whether the control condition is satisfied according to the target outlet water temperature, the real-time outlet water temperature, the indoor temperature and the set temperature further comprises: If the control condition is not satisfied, the target outlet water temperature is increased by a preset adjustment temperature every first preset detection time, and when the target outlet water temperature reaches a preset maximum outlet water temperature, the indoor temperature is less than the set temperature, and the heat pump unit is controlled to alarm.

8. An operation control device for a heat pump unit, characterized in that, Comprise: An acquisition determination unit is configured to determine a target outlet water temperature according to an acquired working mode, an environment temperature and a set temperature; An acquisition adjustment unit is configured to acquire a real-time outlet water temperature and an indoor temperature, and to adjust a heat pump unit according to the working mode, the real-time outlet water temperature, the indoor temperature, the set temperature and the target outlet water temperature.

9. A heat pump unit, characterized by The heat pump unit comprises a memory and a processor, the memory stores a computer program, and the processor executes the computer program to realize the method according to any one of claims 1-7.

10. A computer-readable storage medium, characterized in that, The storage medium stores a computer program, and the computer program can realize the method according to any one of claims 1-7 when executed by a processor.

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