A temperature control method for a constant temperature air conditioning unit

Abstract

The present invention provides a temperature control method for a constant temperature air conditioning unit, which relates to the technical field of constant temperature air conditioners and includes: Step S1: Use an air guiding device to make air enter the condensation area of the constant temperature air conditioning unit, and condense the moisture in the air through the condensation device in the condensation area; Step S2: The air obtained in Step S1 enters the primary temperature adjustment area of the constant temperature air conditioning unit for primary temperature adjustment; Step S3: The air obtained in Step S2 enters the secondary temperature adjustment area of the constant temperature air conditioning unit for secondary temperature adjustment and then is discharged from the constant temperature air conditioning unit. The primary temperature adjustment area uses the high-temperature and high-pressure gas at the outlet of the compressor to heat the air passing through the primary temperature adjustment area; the secondary temperature adjustment area uses a heating wire to heat the air passing through the secondary temperature adjustment area; avoiding the disadvantage of high energy consumption of only using a heating wire to heat the air; condensing and dehumidifying the air before it enters the temperature adjustment area of the constant temperature air conditioning unit to avoid adverse effects caused by relatively humid air.

Description

Technical Field

[0001] The present invention relates to the technical field of constant temperature air conditioners, and particularly to a temperature control method for a constant temperature air conditioner unit. Background Art

[0002] In the prior art, for spaces and places with high temperature requirements, such as laboratories, operating rooms, CT rooms, computer rooms, switching rooms, data centers or museum display rooms, etc., constant temperature air conditioners are usually used.

[0003] Existing constant temperature air conditioners, such as a constant temperature air conditioner air and water two-stage temperature control system and method in CN119085042A, have the following problems:

[0004] 1. Lack of a condensation device, unable to adjust the air humidity. Excessively humid air easily affects the service life of related devices in the temperature control area of the constant temperature air conditioner unit and the air quality in the room where the constant temperature air conditioner unit is applied;

[0005] 2. Only heating the air through an electric heater has the disadvantage of high energy consumption. Summary of the Invention

[0006] The present invention provides a temperature control method for a constant temperature air conditioner unit to solve at least one of the technical problems raised in the above background art.

[0007] To solve the above technical problems, the present invention discloses a temperature control method for a constant temperature air conditioner unit, including:

[0008] Step S1: Make air enter the condensation area of the constant temperature air conditioner unit through an air guiding device, and condense the moisture in the air through the condensation device in the condensation area;

[0009] Step S2: The air obtained in step S1 enters the primary temperature control area of the constant temperature air conditioner unit for primary temperature control;

[0010] Step S3: The air obtained in step S2 enters the secondary temperature control area of the constant temperature air conditioner unit for secondary temperature control and then is discharged from the constant temperature air conditioner unit.

[0011] Preferably, step S2 includes:

[0012] Step S21: Detect the air temperature at the location where the first temperature sensor is located in the air intake area of the primary temperature control area;

[0013] Step S22: When the detection value of the first temperature sensor is less than the first preset temperature, heat the air passing through the primary temperature control area by using the high-temperature and high-pressure gas at the outlet of the compressor;

[0014] When the detection value of the first temperature sensor is greater than the first preset temperature, dissipate heat from the air passing through the primary temperature control area through a heat dissipation device.

[0015] Preferably, step S3 includes:

[0016] Step S31: The air temperature at the location detected by the second temperature sensor in the air inlet area of the secondary temperature control area.

[0017] Step S32: When the detected value of the second temperature sensor is less than the first preset temperature, use the heating wire in the secondary temperature control area to heat the air passing through the secondary temperature control area.

[0018] Preferably, the fluid inlet of the condensation device is communicated with the fluid outlet of the cooling fluid generating device through a fluid inlet pipe, the fluid outlet of the condensation device is communicated with the fluid return port of the cooling fluid generating device, and a first control valve is arranged on the fluid inlet pipe.

[0019] Preferably, it further includes: performing a condensation effect evaluation step periodically, and the condensation effect evaluation step sequentially includes the following steps:

[0020] Step S10: Based on the current temperature and humidity requirements of the air discharged from the constant temperature air conditioner unit, and the current intake parameters of the condensation area of the constant temperature air conditioner unit obtained by the first air detection module at the air inlet of the condensation area of the constant temperature air conditioner unit, determine the current first theoretical condensation parameter of the condensation area;

[0021] Step S101: Determine the first control parameter of the condensation device that matches the current first theoretical condensation parameter;

[0022] Step S102: Control the actual control parameter of the condensation device to work for a third preset duration with the first control parameter obtained in step S101, and control the second air detection module at the air outlet of the condensation area of the constant temperature air conditioner unit to perform several detections. Based on the detection results of the first air detection module and the second air detection module, determine the current actual condensation parameter of the constant temperature air conditioner unit, and determine the current condensation effect loss coefficient based on the current first theoretical condensation parameter of the condensation area and the current actual condensation parameter of the constant temperature air conditioner unit;

[0023] Step S103: Give an early warning when the current condensation effect loss coefficient is greater than the first preset value.

[0024] Preferably, step S10 includes:

[0025] Step S1001: Obtain the temperature-humidity comfort curve and the current target temperature of the air discharged from the constant temperature air conditioner unit, and determine the ordinate corresponding to the current target temperature of the air discharged from the constant temperature air conditioner unit on the temperature-humidity comfort curve as the current target humidity of the air discharged from the constant temperature air conditioner unit;

[0026] The abscissa of the temperature-humidity comfort curve is the temperature of the air discharged by the constant-temperature air-conditioning unit, and the ordinate of the temperature-humidity comfort curve is the target humidity of the air discharged by the constant-temperature air-conditioning unit;

[0027] Step S1002: Obtain the current intake parameters of the condensation area of the constant-temperature air-conditioning unit obtained by the first air detection module at the air inlet of the condensation area of the constant-temperature air-conditioning unit. The intake parameters include: intake temperature, intake humidity, intake flow rate, and intake air pressure;

[0028] Step S1003: Calculate the current first theoretical condensation parameter of the fixed condensation area based on the current target temperature of the air discharged by the constant-temperature air-conditioning unit, the current target humidity of the air discharged by the constant-temperature air-conditioning unit, and the current intake parameters of the condensation area of the constant-temperature air-conditioning unit.

[0029] Preferably, it further includes: performing a condensation device control mode evaluation step periodically. The condensation device control mode evaluation step sequentially includes the following steps:

[0030] Step S10: Determine the current first theoretical condensation parameter of the condensation area based on the current temperature-humidity requirements of the air discharged by the constant-temperature air-conditioning unit and the current intake parameters of the condensation area of the constant-temperature air-conditioning unit obtained by the first air detection module at the air inlet of the condensation area of the constant-temperature air-conditioning unit;

[0031] Step S111: Calculate the current second theoretical condensation parameter of the condensation area based on the current first theoretical condensation parameter of the condensation area and the condensation effect loss coefficient obtained most recently;

[0032] ;

[0033] is the current second theoretical condensation parameter of the condensation area; W is the current first theoretical condensation parameter of the condensation area; is the condensation effect loss coefficient obtained most recently;

[0034] Step S112: Obtain the preset dehumidification parameter - first control valve opening curve at the first rated temperature at the outlet of the cooling fluid generating device; and obtain the preset dehumidification parameter - target cooling fluid temperature curve at the outlet of the cooling fluid generating device at the rated opening of the first control valve;

[0035] In the dehumidification parameter - first control valve opening curve, the abscissa is the dehumidification parameter, and the ordinate is the opening of the first control valve;

[0036] In the dehumidification parameter - target cooling fluid temperature curve at the outlet of the cooling fluid generating device, the abscissa is the dehumidification parameter, and the ordinate is the target cooling fluid temperature at the outlet of the cooling fluid generating device;

[0037] Step S113: Obtain the meteorological data of the intake environment of the constant-temperature air-conditioning unit within the first preset time period in the future, and determine the second theoretical condensation parameter of the condensation area within the first preset time period in the future based on the meteorological data of the intake environment of the constant-temperature air-conditioning unit within the first preset time period in the future, and construct a change curve of the second theoretical condensation parameter of the condensation area within the first preset time period in the future;

[0038] Step S114: Calculate the flow rate evaluation coefficient corresponding to the current second theoretical condensation parameter of the condensation area based on Steps S111 - S113;

[0039] ;

[0040] is the flow rate evaluation coefficient corresponding to the current second theoretical condensation parameter of the condensation area; is the dehumidification parameter - first control valve opening curve compliance coefficient corresponding to the current second theoretical condensation parameter of the condensation area. When is in the dehumidification parameter - first control valve opening curve at the first rated temperature at the outlet of the cooling fluid generating device, then takes the value of 1, otherwise takes the value of 0; is the corresponding dehumidification parameter - first control valve opening curve compliance coefficient; is the slope of the change curve of the second theoretical condensation parameter of the condensation area within the first preset time period in the future at the maximum ordinate; is the maximum slope within the preset abscissa range on both sides of the maximum ordinate of the change curve of the second theoretical condensation parameter of the condensation area within the first preset time period in the future; is the maximum ordinate of the change curve of the second theoretical condensation parameter of the condensation area within the first preset time period in the future;

[0041] Step S115:

[0042] When the flow rate evaluation coefficient corresponding to the current second theoretical condensation parameter of the condensation area is 2, determine that the condensation device is under constant temperature control from the current time to the first preset time period in the future; and dynamically adjust the actual opening of the first control valve based on the real-time second theoretical condensation parameter of the condensation area and the dehumidification parameter - first control valve opening curve at the first rated temperature at the outlet of the cooling fluid generating device;

[0043] When the flow evaluation coefficient corresponding to the current second theoretical condensation parameter in the condensation region is less than 2, it is determined that the condensation device from the current to the future first preset duration is under constant flow control; and the actual cooling fluid temperature at the outlet of the cooling fluid generating device is dynamically adjusted based on the real-time second theoretical condensation parameter in the condensation region and the target cooling fluid temperature curve at the outlet of the dehumidifying parameter - cooling fluid generating device under the rated opening of the first control valve.

[0044] Preferably, the outlet of the compressor is connected to the inlet of the heat exchange tube through a discharge pipe. The heat exchange tube is installed in the primary temperature adjustment region, and the discharge pipe is connected to a second control valve;

[0045] Step S2 includes:

[0046] Step S21: Obtain the meteorological data of the intake environment of the constant temperature air conditioner unit from the current to the future second preset duration, and construct a predicted curve of the condensation temperature of the air; and obtain the target temperature of the discharged air of the constant temperature air conditioner unit from the current to the future second preset duration;

[0047] In the predicted curve of the condensation temperature of the air, the abscissa is the first time, and the ordinate is the predicted value of the condensation temperature of the air; the time range of the first time is from the current to the future second preset duration;

[0048] Step S22: Obtain the change curve of the air temperature at the outlet of the primary temperature adjustment region with respect to the opening of the second control valve at each condensation temperature of the air at the air inlet of the primary temperature adjustment region at the second rated temperature (the temperature of the high-temperature and high-pressure gas at the outlet of the compressor) at the outlet of the compressor;

[0049] Step S23: Based on Step S21 and Step S22, construct a predicted curve of the target opening of the second control valve. The abscissa of the predicted curve of the target opening of the second control valve is the second time, and the ordinate is the target opening of the second control valve; the second time is equal to the corresponding first time plus the first duration, and the first duration is the duration for the air to flow from the air inlet of the constant temperature air conditioner unit to the air inlet of the primary temperature adjustment region (which can be obtained based on tests, and the working power of the air guiding device of the present invention can be controlled to be the rated power);

[0050] The method for obtaining the target opening of the second control valve at the second time is as follows:

[0051] Obtain the predicted value of the condensation temperature of the air corresponding to the first time corresponding to the current second time;

[0052] On the change curve of the air temperature at the outlet of the primary temperature adjustment region with respect to the opening of the second control valve at the predicted value of the condensation temperature of the air corresponding to the first time corresponding to the current second time, obtain the ordinate corresponding to the target temperature of the discharged air within the second preset duration;

[0053] When there is a vertical coordinate corresponding to the target temperature of the exhausted air within the second preset duration, this vertical coordinate is the target opening degree of the second control valve corresponding to the current second time;

[0054] When there is no vertical coordinate corresponding to the target temperature of the exhausted air within the second preset duration, then select the opening degree of the second control valve corresponding to the maximum vertical coordinate in the change curve of the air temperature at the air outlet of the primary temperature regulation area - the opening degree of the second control valve under the predicted value of the condensation temperature of the air corresponding to the first time corresponding to the current second time as the target opening degree of the second control valve corresponding to the current second time;

[0055] Step S24: Control the second control valve to work based on the target opening degree prediction curve of the second control valve.

[0056] Next, through the accompanying drawings and embodiments, the technical solution of the present invention will be further described in detail.

[0057] Compared with the prior art, the present invention has the following beneficial effects:

[0058] 1. Condense and dehumidify the air before it enters the temperature regulation area of the constant temperature air conditioner unit, avoiding the direct entry of overly wet air into the temperature regulation area of the constant temperature air conditioner unit, which is likely to affect the service life of the related devices in the temperature regulation area of the constant temperature air conditioner unit and the air quality in the room where the constant temperature air conditioner unit is applied;

[0059] 2. Heat the air in the primary temperature regulation area 2 of the constant temperature air conditioner unit through the compressor; then in the secondary temperature regulation area 3, reheating the air with unqualified temperature after being regulated in the primary temperature regulation area 2 through the heating wire, ensuring that the temperature of the exhausted air from the constant temperature air conditioner unit meets the requirements and avoiding the disadvantage of high energy consumption of only using the heating wire to heat the air. Description of the Drawings

[0060] The accompanying drawings are used to provide a further understanding of the present invention, and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation to the present invention. In the accompanying drawings:

[0061] Figure 1 is the flowchart of the present invention;

[0062] Figure 2 is the partial structural schematic diagram of the constant temperature air conditioner unit of the present invention.

[0063] In the figure: 1, condensation area; 2, primary temperature regulation area; 3, secondary temperature regulation area; 4, condensation device; 5, heat exchange tube. Detailed Embodiments

[0064] The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are only for the purpose of illustrating and explaining the present invention, and are not intended to limit the present invention.

[0065] In addition, in the present invention, descriptions such as "first" and "second" are only for descriptive purposes, and do not particularly refer to the meaning of order or sequence, nor are they used to limit the present invention. They are merely used to distinguish components or operations described with the same technical terms, and should not be understood as indicating or implying their relative importance or implicitly indicating the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions and technical features between various embodiments can be combined with each other, but it must be based on the ability of those of ordinary skill in the art to implement. When the combination of technical solutions results in contradictions or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0066] The present invention provides the following embodiments

[0067] Embodiment 1. The embodiment of the present invention provides a temperature control method for a constant temperature air conditioning unit, as Figure 1 、 Figure 2 shown, including:

[0068] Step S1: Make air enter the condensation area 1 of the constant temperature air conditioning unit through the air guiding device, and condense the moisture in the air through the condensation device 4 in the condensation area 1; the air guiding device is a prior art and can be an existing air blower;

[0069] Step S2: The air obtained in step S1 enters the primary temperature adjustment area 2 of the constant temperature air conditioning unit for primary temperature adjustment;

[0070] Step S3: The air obtained in step S2 enters the secondary temperature adjustment area 3 of the constant temperature air conditioning unit for secondary temperature adjustment and then is discharged from the constant temperature air conditioning unit.

[0071] Step S2 includes:

[0072] Step S21: Detect the air temperature at the location where the first temperature sensor is located through the first temperature sensor in the air inlet area of the primary temperature adjustment area 2;

[0073] Step S22: When the detection value of the first temperature sensor is less than the first preset temperature, heat the air passing through the primary temperature adjustment area 2 by using the high-temperature and high-pressure gas at the outlet of the compressor;

[0074] When the detection value of the first temperature sensor is greater than the first preset temperature, dissipate heat from the air passing through the primary temperature adjustment area 2 through the heat dissipation device.

[0075] Step S3 includes:

[0076] Step S31: The air temperature at the location detected by the second temperature sensor in the air intake area of the secondary temperature adjustment area 3.

[0077] Step S32: When the detected value of the second temperature sensor is less than the first preset temperature, use the heating wire in the secondary temperature adjustment area 3 to heat the air passing through the secondary temperature adjustment area 3.

[0078] The beneficial effects of the above technical solution are as follows:

[0079] 1. Condense and dehumidify the air before it enters the temperature adjustment area of the constant temperature air conditioner unit, to prevent overly wet air from directly entering the temperature adjustment area of the constant temperature air conditioner unit, which can easily affect the service life of the relevant components in the temperature adjustment area of the constant temperature air conditioner unit and the air quality in the room where the constant temperature air conditioner unit is applied.

[0080] 2. Heat the air in the primary temperature adjustment area 2 of the constant temperature air conditioner unit by compression heating; then in the secondary temperature adjustment area 3, reheat the air with unqualified temperature after being temperature-adjusted in the primary temperature adjustment area 2 through the heating wire, to ensure that the temperature of the air discharged from the constant temperature air conditioner unit meets the requirements and avoid the disadvantage of high energy consumption when only using the heating wire to heat the air.

[0081] Embodiment 2, on the basis of Embodiment 1, the fluid inlet of the condensation device 4 is connected to the fluid outlet of the cooling fluid generating device through a fluid inlet pipe, the fluid outlet of the condensation device 4 is connected to the fluid return port of the cooling fluid generating device, and a first control valve is provided on the fluid inlet pipe. The condensation device 4 is an existing device that condenses the cooling fluid in the condensation pipe, such as CN208779669U; the condensation device 4 may also include a condensation pipe (which can be a spiral condensation pipe), the inlet of the condensation pipe is connected to the fluid outlet of the cooling fluid generating device through a fluid inlet pipe, and the fluid outlet of the condensation pipe is connected to the fluid return port of the cooling fluid generating device.

[0082] The above technical solution: By setting the first control valve, the flow rate of the cooling fluid in the condensation device 4 can be regulated to meet different condensation requirements.

[0083] Embodiment 3, on the basis of Embodiment 2,

[0084] It further includes: performing a primary condensation effect evaluation step periodically, and the condensation effect evaluation step sequentially includes the following steps:

[0085] Step S10: Based on the current temperature and humidity requirements of the air discharged from the constant temperature air conditioner unit, and the current intake parameters of the condensation area 1 of the constant temperature air conditioner unit obtained by the first air detection module at the air intake of the condensation area 1 of the constant temperature air conditioner unit, determine the current first theoretical condensation parameter of the condensation area 1.

[0086] Step S101: Determine the first control parameter of the condensation device 4 that matches the current first theoretical condensation parameter (which can be obtained based on the two curves corresponding to step S112 below); the first control parameter can be the opening degree of the first control valve, or the temperature of the cooling fluid generated by the cooling fluid generation device.

[0087] Step S102: Control the actual control parameter of the condensation device 4 to work for a third preset duration with the first control parameter obtained in step S101, and control the second air detection module at the air outlet of the condensation area 1 of the constant temperature air conditioner unit to perform several detections. Determine the current actual condensation parameter of the constant temperature air conditioner unit based on the detection results of the first air detection module and the second air detection module, and determine the current condensation effect loss coefficient based on the current first theoretical condensation parameter of the condensation area 1 and the current actual condensation parameter of the constant temperature air conditioner unit.

[0088] Step S103: Issue a warning when the current condensation effect loss coefficient is greater than the first preset value.

[0089] Step S10 includes:

[0090] Step S1001: Obtain the temperature-humidity comfort curve and the current target temperature of the air discharged from the constant temperature air conditioner unit, and determine that the ordinate corresponding to the current target temperature of the air discharged from the constant temperature air conditioner unit on the temperature-humidity comfort curve is the current target humidity of the air discharged from the constant temperature air conditioner unit.

[0091] The abscissa of the temperature-humidity comfort curve is the temperature of the air discharged from the constant temperature air conditioner unit, and the ordinate of the temperature-humidity comfort curve is the target humidity of the air discharged from the constant temperature air conditioner unit.

[0092] Step S1002: Obtain the current intake parameters of the condensation area 1 of the constant temperature air conditioner unit obtained by the first air detection module at the intake port of the condensation area 1 of the constant temperature air conditioner unit. The intake parameters include: intake temperature, intake humidity, intake flow rate, and intake air pressure. In the present invention, the air induction device is controlled to work at the rated power.

[0093] Step S1003: Calculate the current first theoretical condensation parameter of the condensation area 1 based on the current target temperature of the air discharged from the constant temperature air conditioner unit, the current target humidity of the air discharged from the constant temperature air conditioner unit, and the current intake parameters of the condensation area 1 of the constant temperature air conditioner unit.

[0094] The current first theoretical condensation parameter of the condensation area 1 is calculated based on the following formula:

[0095] ;

[0096] ;

[0097] ;

[0098] W is the current first theoretical condensation parameter of the condensation region 1; is the current intake air flow rate of the condensation region 1 of the constant temperature air conditioner unit obtained in step S1002; is the current intake air equivalent enthalpy value of the condensation region 1 of the constant temperature air conditioner unit; is the current target outlet air equivalent enthalpy value of the condensation region 1 of the constant temperature air conditioner unit; is the current intake air temperature of the condensation region 1 of the constant temperature air conditioner unit obtained in step S1002; is the current intake air pressure of the condensation region 1 of the constant temperature air conditioner unit obtained in step S1002; is the current absolute humidity of the intake air of the condensation region 1 of the constant temperature air conditioner unit obtained in step S1002; is when the air temperature is the air saturation humidity; is the target absolute humidity of the air discharged by the constant temperature air conditioner unit; is when the air temperature is the water vapor partial pressure in the saturated humid air; is the current target temperature at the outlet of the condensation region 1 of the constant temperature air conditioner unit (can be set as the current condensation temperature of the air); is when the air temperature is the water vapor partial pressure in the saturated humid air; is when the air temperature is the air saturation humidity; is the specific volume of the air in the intake air environment of the constant temperature air conditioner unit; is the unit temperature;

[0099] The actual outlet air equivalent enthalpy value and the condensation effect loss coefficient of the condensation region 1 are calculated based on the following formulas:

[0100] ;

[0101] is the actual outlet air equivalent enthalpy value of the condensation region 1; is the average value of the temperatures of the outlet of the condensation region 1 detected by the second air detection module; is when the air temperature is the water vapor partial pressure in the saturated humid air; is the average value of the absolute humidities of the outlet of the condensation region 1 detected by the second air detection module; is when the air temperature is the air saturation humidity.

[0102] ;

[0103] is the current condensation effect loss coefficient.

[0104] The beneficial effects of the above technical solution are as follows:

[0105] Since dust in the air deposits on the outer wall of the condenser tubes of the condensation device 4, the condensation effect of the condensation device 4 may be abnormal; perform a condensation effect evaluation step periodically to determine the current condensation effect loss coefficient of the condensation device 4, and give an alarm when the current condensation effect loss coefficient is greater than the first preset value, reminding the operator to repair and clean the condensation device 4 to ensure the condensation effect of the condensation device 4.

[0106] In the condensation effect evaluation step, determine the current first theoretical condensation parameter of the condensation area 1, and determine the first control parameter of the condensation device 4 that matches the current first theoretical condensation parameter, and control the actual control parameter of the condensation device 4 to work for a third preset duration with the first control parameter obtained in step S101 for condensation effect testing to ensure the reliability of the evaluation of the condensation effect.

[0107] Embodiment 4, on the basis of Embodiment 3, further includes: performing a condensation device 4 control mode evaluation step periodically, and the condensation device 4 control mode evaluation step sequentially includes the following steps:

[0108] Step S10: Based on the current temperature and humidity requirements of the air discharged from the constant temperature air conditioner unit, and the current intake parameters of the condensation area 1 of the constant temperature air conditioner unit obtained by the first air detection module at the air intake of the condensation area 1 of the constant temperature air conditioner unit, determine the current first theoretical condensation parameter of the condensation area 1;

[0109] Step S111: Calculate the current second theoretical condensation parameter of the condensation area 1 based on the current first theoretical condensation parameter of the condensation area 1 and the most recently obtained condensation effect loss coefficient;

[0110] ;

[0111] is the current second theoretical condensation parameter of the condensation area 1; W is the current first theoretical condensation parameter of the condensation area 1; is the most recently obtained condensation effect loss coefficient;

[0112] Step S112: Obtain the preset dehumidification parameter - first control valve opening curve at the first rated temperature at the outlet of the cooling fluid generating device; and obtain the preset dehumidification parameter - target cooling fluid temperature curve at the outlet of the cooling fluid generating device at the rated opening of the first control valve; both of the above curves are determined by testing during the initial use period of the condensation device 4;

[0113] For the dehumidification parameter - first control valve opening curve, the abscissa is the dehumidification parameter and the ordinate is the opening of the first control valve;

[0114] For the dehumidification parameter - target cooling fluid temperature curve at the outlet of the cooling fluid generating device, the abscissa is the dehumidification parameter and the ordinate is the target cooling fluid temperature at the outlet of the cooling fluid generating device;

[0115] Step S113: Obtain the meteorological data of the intake environment of the constant temperature air conditioner unit within the first preset time period in the future, and determine the second theoretical condensation parameter of the condensation area 1 within the first preset time period in the future based on the meteorological data of the intake environment of the constant temperature air conditioner unit within the first preset time period in the future, and construct a change curve of the second theoretical condensation parameter of the condensation area 1 within the first preset time period in the future;

[0116] Step S114: Calculate the flow rate evaluation coefficient corresponding to the current second theoretical condensation parameter of the condensation area 1 based on Steps S111 - S113;

[0117] ;

[0118] is the flow rate evaluation coefficient corresponding to the current second theoretical condensation parameter of the condensation area 1; is the dehumidification parameter - first control valve opening curve compliance coefficient corresponding to the current second theoretical condensation parameter W of the condensation area 1. When is in the dehumidification parameter - first control valve opening curve at the first rated temperature at the outlet of the preset cooling fluid generating device, then takes the value of 1, otherwise takes the value of 0;

[0119] is the corresponding dehumidification parameter - first control valve opening curve compliance coefficient; is the slope of the change curve of the second theoretical condensation parameter of the condensation area 1 at the maximum ordinate within the first preset time period in the future; is the maximum slope within the preset abscissa range on both sides of the maximum ordinate of the change curve of the second theoretical condensation parameter of the condensation area 1 within the first preset time period in the future; is the maximum ordinate of the change curve of the second theoretical condensation parameter of the condensation area 1 within the first preset time period in the future;

[0120] Step S115:

[0121] When the flow evaluation coefficient corresponding to the current second theoretical condensation parameter in the condensation region 1 is 2, it is determined that the condensation device 4 from the current to the future first preset duration is under constant temperature control (i.e., the actual high-temperature and high-pressure gas temperature at the outlet of the cooling fluid generating device is constantly the first rated temperature); and the actual opening of the first control valve is dynamically adjusted based on the real-time second theoretical condensation parameter in the condensation region 1 and the dehumidification parameter - first control valve opening curve at the first rated temperature at the outlet of the cooling fluid generating device.

[0122] When the flow evaluation coefficient corresponding to the current second theoretical condensation parameter in the condensation region 1 is less than 2, it is determined that the condensation device 4 from the current to the future first preset duration is under constant flow control (i.e., the opening of the first control valve is constantly the rated opening of the first control valve); and the actual cooling fluid temperature at the outlet of the cooling fluid generating device is dynamically adjusted based on the real-time second theoretical condensation parameter in the condensation region 1 and the dehumidification parameter - target cooling fluid temperature curve at the outlet of the cooling fluid generating device at the rated opening of the first control valve.

[0123] The beneficial effects of the above technical solution are as follows:

[0124] In the present invention, when the flow evaluation coefficient corresponding to the current second theoretical condensation parameter in the condensation region 1 is 2, it is determined that the condensation device 4 from the current to the future first preset duration is under constant temperature control; that is, when under constant temperature control from the current to the future first preset duration, the opening of the first control valve is dynamically adjusted, that is, when the second theoretical condensation parameter from the current to the future first preset duration can be satisfied, constant temperature control is preferentially selected to avoid the inconvenience of repeatedly adjusting the temperature of the cooling fluid, the non-uniformity of the temperature, and the impact on the energy consumption of the cooling fluid generating device.

[0125] Example 5, on the basis of Example 1,

[0126] The outlet of the compressor is connected to the inlet of the heat exchange tube 5 through a discharge pipe. The heat exchange tube 5 is installed in the primary temperature adjustment region 2, and the discharge pipe is connected to a second control valve.

[0127] Step S2 includes:

[0128] Step S21: Obtain the meteorological data (including air temperature and relative humidity of the air) in the intake environment of the constant temperature air-conditioning unit from the current to the future second preset duration, and construct a predicted curve of the condensation temperature of the air; and obtain the target temperature of the discharged air of the constant temperature air-conditioning unit from the current to the future second preset duration.

[0129] In the predicted curve of the condensation temperature of the air, the abscissa is the first time, and the ordinate is the predicted value of the condensation temperature of the air; the time range of the first time is from the current to the future second preset duration; the predicted value of the condensation temperature of the air is lower than the preset value of the predicted value of the dew point temperature, and the predicted value of the dew point temperature can be calculated based on the following formula: ; is the predicted dew point temperature value of the air corresponding to the current first time; is the air temperature of the intake environment corresponding to the current first time; L is the relative humidity of the intake environment corresponding to the current first time;

[0130] Step S22: Obtain the change curve of the opening of the second control valve - the air temperature at the air outlet of the primary temperature control area 2 at each condensation temperature of the air at the inlet of the primary temperature control area 2 under the second rated temperature at the compressor outlet; Before the constant temperature air conditioner unit is formally used for a long time, obtain the change curve of the opening of the second control valve - the air temperature at the air outlet of the primary temperature control area 2 at each condensation temperature of the integer air at the inlet of the primary temperature control area 2 through testing;

[0131] Step S23: Based on Step S21 and Step S22, construct the target opening prediction curve of the second control valve. The abscissa of the target opening prediction curve of the second control valve is the second time, and the ordinate is the target opening of the second control valve; The second time is equal to the corresponding first time plus the first duration, and the first duration is the duration of the air from the air inlet of the constant temperature air conditioner unit to the inlet of the primary temperature control area 2;

[0132] The method for obtaining the target opening of the second control valve at the second time is as follows:

[0133] Obtain the predicted condensation temperature value of the air corresponding to the first time corresponding to the current second time;

[0134] On the change curve of the opening of the second control valve - the air temperature at the air outlet of the primary temperature control area 2 at the predicted condensation temperature value of the air corresponding to the first time corresponding to the current second time, obtain the ordinate corresponding to the target temperature of the discharged air within the second preset duration;

[0135] When there is an ordinate corresponding to the target temperature of the discharged air within the second preset duration, this ordinate is the target opening of the second control valve corresponding to the current second time;

[0136] When there is no ordinate corresponding to the target temperature of the discharged air within the second preset duration, then select the opening of the second control valve corresponding to the maximum ordinate on the change curve of the opening of the second control valve - the air temperature at the air outlet of the primary temperature control area 2 at the predicted condensation temperature value of the air corresponding to the first time corresponding to the current second time as the target opening of the second control valve corresponding to the current second time;

[0137] Step S24: Control the second control valve to work based on the target opening prediction curve of the second control valve.

[0138] The beneficial effects of the above technical solution are:

[0139] By obtaining the meteorological data of the intake environment of the constant-temperature air-conditioning unit from the current to the next second preset duration, constructing a prediction curve of the condensation temperature of the air from the current to the next second preset duration (corresponding to the air temperature state at the inlet of the primary temperature control area 2 / outlet of the condensation area 1), based on the prediction curve of the condensation temperature of the air from the current to the next second preset duration, the target temperature of the discharged air of the constant-temperature air-conditioning unit from the current to the next second preset duration (which can be a constant value), and the heat exchange capacity state parameter of the inlet of the primary temperature control area 2 at each condensation temperature of the air (under the second rated temperature at the compressor outlet, at each condensation temperature of the air at the inlet of the primary temperature control area 2, the change curve of the opening of the second control valve - the air temperature at the air outlet of the primary temperature control area 2), finally determining the target opening prediction curve of the second control valve to ensure the selection of the appropriate target opening of the second control valve;

[0140] When there is a vertical coordinate corresponding to the target temperature of the discharged air within the second preset duration, this vertical coordinate is the target opening of the second control valve corresponding to the current second time; that is, when the heat exchange tubes 5 in the primary temperature control area 2 can meet the target temperature requirement of the discharged air from the current to the next second preset duration, there is no need for secondary heating by the heating wire;

[0141] When there is no vertical coordinate corresponding to the target temperature of the discharged air within the second preset duration, then select the opening of the second control valve corresponding to the maximum vertical coordinate in the change curve of the opening of the second control valve - the air temperature at the air outlet of the primary temperature control area 2 at the predicted condensation temperature value of the air corresponding to the first time corresponding to the current second time as the target opening of the second control valve corresponding to the current second time; that is, when the heat exchange tubes 5 in the primary temperature control area 2 cannot meet the target temperature requirement of the discharged air from the current to the next second preset duration, select the appropriate second target opening to increase the air temperature at the air outlet of the primary temperature control area 2 as much as possible and reduce the heating energy consumption of the heating wire.

[0142] Embodiment 6, on the basis of Embodiment 5, step S23 further includes:

[0143] Construct a prediction curve of the air temperature at the air outlet of the primary temperature control area 2. In the prediction curve of the air temperature at the air outlet of the primary temperature control area 2, the abscissa is the third time, and the ordinate is the vertical coordinate in the change curve of the opening of the second control valve - the air temperature at the air outlet of the primary temperature control area 2 at the predicted condensation temperature value of the air corresponding to the first time corresponding to the current second time corresponding to the current third time;

[0144] The third time is equal to the corresponding second time plus the second duration, and the second duration is the duration for the air to flow from the air inlet of the primary temperature control area 2 to the air inlet of the secondary temperature control area 3;

[0145] Step S2 further includes:

[0146] Step S25: Determine the required heating power of the heating wire for the air entering the secondary area based on the predicted curve of the air temperature at the air outlet of the primary temperature control area 2 and the target temperature of the air discharged by the constant temperature air conditioner unit within the current to the next second preset time period, and construct a predicted curve of the required heating power of the heating wire for the air entering the secondary temperature control area 3;

[0147] Step S26: Control the heating wire to work based on the predicted curve of the required heating power of the heating wire for the air entering the secondary temperature control area 3.

[0148] The beneficial effects of the above technical solution are as follows: Determine the required heating power of the heating wire for the air entering the secondary area based on the predicted curve of the air temperature at the air outlet of the primary temperature control area 2 and the target temperature of the air discharged by the constant temperature air conditioner unit within the current to the next second preset time period, construct a predicted curve of the required heating power of the heating wire for the air entering the secondary temperature control area 3, and control the heating wire to work based on the predicted curve of the required heating power of the heating wire for the air entering the secondary temperature control area 3, so as to ensure the reliable operation of the heating wire to ensure the temperature reliability of the air discharged by the constant temperature air conditioner unit.

[0149] Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalent technologies, the present invention also intends to include these changes and modifications.

Claims

1. A temperature control method for a constant temperature air conditioning unit, characterized in that: Including: Step S1: Make air enter the condensation area of the constant-temperature air conditioner unit through the air intake device, and condense the moisture in the air through the condensation device in the condensation area; Step S2: The air obtained in Step S1 enters the primary temperature adjustment area of the constant-temperature air conditioner unit for primary temperature adjustment; Step S3: The air obtained in Step S2 enters the secondary temperature adjustment area of the constant-temperature air conditioner unit for secondary temperature adjustment and then is discharged from the constant-temperature air conditioner unit; The fluid inlet of the condensation device is communicated with the fluid outlet of the cooling fluid generating device through the fluid inlet pipe, the fluid outlet of the condensation device is communicated with the fluid return port of the cooling fluid generating device, and a first control valve is arranged on the fluid inlet pipe; The temperature control method of the constant-temperature air conditioner unit further includes: periodically performing a primary condensation effect evaluation step, and the condensation effect evaluation step sequentially includes the following steps: Step S10: Based on the current temperature and humidity requirements of the air discharged from the constant-temperature air conditioner unit, and the current intake parameters of the condensation area of the constant-temperature air conditioner unit obtained by the first air detection module at the air intake of the condensation area of the constant-temperature air conditioner unit, determine the current first theoretical condensation parameter of the condensation area; Step S101: Determine the first control parameter of the condensation device that matches the current first theoretical condensation parameter; Step S102: Control the actual control parameter of the condensation device to work for a third preset duration with the first control parameter obtained in Step S101, and control the second air detection module at the air outlet of the condensation area of the constant-temperature air conditioner unit to perform several detections. Based on the detection results of the first air detection module and the second air detection module, determine the current actual condensation parameter of the constant-temperature air conditioner unit, and determine the current condensation effect loss coefficient based on the current first theoretical condensation parameter of the condensation area and the current actual condensation parameter of the constant-temperature air conditioner unit; Step S103: Give an alarm when the current condensation effect loss coefficient is greater than the first preset value.

2. The temperature control method of a constant temperature air conditioning unit according to claim 1, characterized in that: Step S2 includes: Step S21: Detect the air temperature at the location where the first temperature sensor is located through the intake area of the primary temperature adjustment area; Step S22: When the detection value of the first temperature sensor is less than the first preset temperature, heat the air passing through the primary temperature adjustment area with the high-temperature and high-pressure gas at the outlet of the compressor; When the detection value of the first temperature sensor is greater than the first preset temperature, dissipate heat from the air passing through the primary temperature adjustment area through the heat dissipation device.

3. The temperature control method of a constant temperature air conditioning unit according to claim 1, characterized in that: Step S3 includes: Step S31: Detect the air temperature at the location where the second temperature sensor is located through the intake area of the secondary temperature adjustment area; Step S32: When the detection value of the second temperature sensor is less than the first preset temperature, heat the air passing through the secondary temperature adjustment area with the heating wire in the secondary temperature adjustment area.

4. The temperature control method of a constant-temperature air conditioner unit according to claim 1, characterized in that: Step S10 includes: Step S1001: Obtain the temperature and humidity comfort curve and the current target temperature of the air discharged from the constant-temperature air conditioner unit, and determine that the ordinate corresponding to the current target temperature of the air discharged from the constant-temperature air conditioner unit on the temperature and humidity comfort curve is the current target humidity of the air discharged from the constant-temperature air conditioner unit; The abscissa of the temperature and humidity comfort curve is the temperature of the air discharged by the constant temperature air conditioning unit, and the ordinate of the temperature and humidity comfort curve is the target humidity of the air discharged by the constant temperature air conditioning unit; Step S1002: Obtain the current intake parameters of the condensation area of the constant temperature air conditioning unit obtained by the first air detection module at the air inlet of the condensation area of the constant temperature air conditioning unit. The intake parameters include: intake temperature, intake humidity, intake flow rate, and intake air pressure; Step S1003: Calculate the current first theoretical condensation parameter of the fixed condensation area based on the current target temperature of the air discharged by the constant temperature air conditioning unit, the current target humidity of the air discharged by the constant temperature air conditioning unit, and the current intake parameters of the condensation area of the constant temperature air conditioning unit.

5. The temperature control method of a constant temperature air conditioning unit according to claim 1, characterized in that: It further includes: Performing a condensation device control mode evaluation step once in a cycle. The condensation device control mode evaluation step sequentially includes the following steps: Step S10: Determine the current first theoretical condensation parameter of the condensation area based on the current temperature and humidity requirements of the air discharged by the constant temperature air conditioning unit and the current intake parameters of the condensation area of the constant temperature air conditioning unit obtained by the first air detection module at the air inlet of the condensation area of the constant temperature air conditioning unit; Step S111: Calculate the current second theoretical condensation parameter of the condensation area based on the current first theoretical condensation parameter of the condensation area and the condensation effect loss coefficient obtained most recently; ； is the current second theoretical condensation parameter of the condensation region; W is the current first theoretical condensation parameter of the condensation region; is the condensation effect loss coefficient obtained most recently; Step S112: Obtain the preset dehumidification parameter - first control valve opening curve at the first rated temperature at the outlet of the cooling fluid generating device; and obtain the preset dehumidification parameter - target cooling fluid temperature curve at the outlet of the cooling fluid generating device at the rated opening of the first control valve; In the dehumidification parameter - first control valve opening curve, the abscissa is the dehumidification parameter and the ordinate is the opening of the first control valve; In the dehumidification parameter - target cooling fluid temperature curve at the outlet of the cooling fluid generating device, the abscissa is the dehumidification parameter and the ordinate is the target cooling fluid temperature at the outlet of the cooling fluid generating device; Step S113: Obtain the meteorological data of the intake environment of the constant temperature air conditioning unit within the first preset time period in the future, and determine the second theoretical condensation parameter of the condensation area within the first preset time period in the future based on the meteorological data of the intake environment of the constant temperature air conditioning unit within the first preset time period in the future, and construct a change curve of the second theoretical condensation parameter of the condensation area within the first preset time period in the future; Step S114: Calculate the flow rate evaluation coefficient corresponding to the current second theoretical condensation parameter of the condensation area based on steps S111 - S113; ； The flow rate evaluation coefficient corresponding to the current second theoretical condensation parameter in the condensation region; The current second theoretical condensation parameter in the condensation region The dehumidification parameter - the first control valve opening curve compliance coefficient corresponding to, when In the dehumidification parameter - the first control valve opening curve at the first rated temperature at the outlet of the cooling fluid generating device in the preset, then The value is 1, otherwise The value is 0; Is The dehumidification parameter - the first control valve opening curve compliance coefficient corresponding to; The slope at the maximum ordinate of the second theoretical condensation parameter change curve in the condensation region within the first preset time period in the future; The maximum slope within the preset abscissa range on both sides of the maximum ordinate of the second theoretical condensation parameter change curve in the condensation region within the first preset time period in the future; The maximum ordinate of the second theoretical condensation parameter change curve in the condensation region within the first preset time period in the future; Step S115: When the flow rate evaluation coefficient corresponding to the current second theoretical condensation parameter of the condensation area is 2, determine that the condensation device from the current to the first preset time period in the future is under constant temperature control; and dynamically adjust the actual opening of the first control valve based on the real-time second theoretical condensation parameter of the condensation area and the dehumidification parameter - first control valve opening curve at the first rated temperature at the outlet of the cooling fluid generating device; When the flow evaluation coefficient corresponding to the current second theoretical condensation parameter in the condensation region is less than 2, it is determined that the condensation device from the current to the future first preset duration is under constant flow control; and the actual cooling fluid temperature at the outlet of the cooling fluid generating device is dynamically adjusted based on the second theoretical condensation parameter of the real-time condensation region and the target cooling fluid temperature curve at the outlet of the dehumidification parameter - cooling fluid generating device under the rated opening of the first control valve.

6. The temperature control method of a constant temperature air conditioner unit according to claim 1, characterized in that: The outlet of the compressor is connected to the inlet of the heat exchange tube through a discharge pipe. The heat exchange tube is installed in the primary temperature adjustment region, and the discharge pipe is connected to a second control valve; Step S2 includes: Step S21: Obtain the meteorological data of the intake environment of the constant temperature air conditioner unit from the current to the future second preset duration, and construct a condensation temperature prediction curve of the air; and obtain the target temperature of the air discharged from the constant temperature air conditioner unit from the current to the future second preset duration; In the condensation temperature prediction curve of the air, the abscissa is the first time, and the ordinate is the predicted condensation temperature value of the air; the time range of the first time is from the current to the future second preset duration; Step S22: Obtain the change curve of the opening of the second control valve - the air temperature at the outlet of the primary temperature adjustment region at each condensation temperature of the air at the air inlet of the primary temperature adjustment region under the second rated temperature at the outlet of the compressor; Step S23: Based on Step S21 and Step S22, construct a target opening prediction curve of the second control valve. The abscissa of the target opening prediction curve of the second control valve is the second time, and the ordinate is the target opening of the second control valve; the second time is equal to the corresponding first time plus the first duration. The first duration is the duration for the air to flow from the air inlet of the constant temperature air conditioner unit to the air inlet of the primary temperature adjustment region; the first duration is obtained through testing, and the working power of the air guiding device is controlled to be the rated power; The method for obtaining the target opening of the second control valve at the second time is as follows: Obtain the predicted condensation temperature value of the air corresponding to the first time corresponding to the current second time; In the change curve of the opening of the second control valve - the air temperature at the outlet of the primary temperature adjustment region at the predicted condensation temperature value of the air corresponding to the first time corresponding to the current second time, obtain the ordinate corresponding to the target temperature of the air discharged within the second preset duration; When there is an ordinate corresponding to the target temperature of the air discharged within the second preset duration, this ordinate is the target opening of the second control valve corresponding to the current second time; When there is no ordinate corresponding to the target temperature of the air discharged within the second preset duration, then select the opening of the second control valve corresponding to the maximum ordinate in the change curve of the opening of the second control valve - the air temperature at the outlet of the primary temperature adjustment region at the predicted condensation temperature value of the air corresponding to the first time corresponding to the current second time as the target opening of the second control valve corresponding to the current second time; Step S24: Control the second control valve to work based on the target opening prediction curve of the second control valve.

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