Air supply phase change rectification temperature control system

Abstract

The utility model provides an air supply phase change rectification temperature control system which comprises a temperature adjusting system used for circulating air in a target space and cooling the air conveyed back to the target space; the fresh air processing system is used for inputting fresh air into the target space; a target phase-change material is deployed on the air supply unit, and the temperature sensor is used for detecting the first current temperature of the target phase-change material and sending the first current temperature of the target phase-change material to the control unit; the air supply unit is arranged at air outlets of the temperature adjusting system and the fresh air processing system; and the control unit is used for controlling the temperature adjusting system according to the first current temperature of the target phase change material. According to the utility model, the temperature requirement of a factory building with a higher temperature fluctuation range requirement can be met, and the temperature of the factory building with the higher temperature fluctuation range requirement is ensured to be within a constant range.

Description

Technical Field

[0001] The utility model relates to the technical field of temperature regulation, in particular to an air supply phase change rectification temperature control system. Background Art

[0002] For cleanrooms with low temperature fluctuation range requirements, ordinary independent temperature control systems can achieve temperature regulation of the cleanroom. However, for cleanrooms with high temperature fluctuation range requirements, ordinary independent temperature control systems are difficult to meet the temperature fluctuation requirements of the cleanroom. Utility Model Content

[0003] In view of the above problems, an air supply phase change rectification temperature control system is proposed to overcome the above problems or at least partially solve the above problems, including:

[0004] An air supply phase change rectification temperature control system, comprising: a control unit, a temperature adjustment system, a fresh air processing system, an air supply unit and a temperature sensor; wherein:

[0005] The temperature control system is used to circulate the air in the target space and cool the air transported back to the target space;

[0006] The fresh air processing system is used to input fresh air into the target space;

[0007] The air supply unit is provided with a target phase change material, and the temperature sensor is used to detect a first current temperature of the target phase change material and send the first current temperature of the target phase change material to the control unit; the air supply unit is provided at the air outlet of the temperature regulation system and the fresh air treatment system;

[0008] The control unit is configured to control the temperature adjustment system according to the first current temperature of the target phase change material.

[0009] Optionally, the temperature regulation system includes:

[0010] A return air duct, having a return air inlet at one end and an air outlet at the other end; wherein the return air inlet is arranged at the bottom area of ​​the target space;

[0011] A direct digital control dry coil is provided at the air outlet of the return air duct;

[0012] A chilled water pipe is connected to the direct digital control dry coil; the chilled water pipe is used to transport a cooling medium to the direct digital control dry coil.

[0013] Optionally, the temperature regulation system further includes:

[0014] An electric valve unit is provided in the chilled water pipe; and the control unit is used to control the opening of the electric valve unit according to the first current temperature of the target phase change material.

[0015] Optionally, the chilled water pipe includes a water inlet pipe and a water outlet pipe, and the water inlet pipe and the water outlet pipe are respectively connected to the direct digital control dry coil;

[0016] The water inlet pipe is used to input cooling medium into the direct digital control dry coil;

[0017] The water outlet pipe is used to output the cooling medium after absorbing heat to the direct digital control dry coil;

[0018] The electric valve unit is arranged in the water inlet pipe.

[0019] Optionally, the temperature regulation system includes a plurality of;

[0020] The air outlets of the multiple return air ducts are respectively directed toward the air supply unit from different angles.

[0021] Optionally, the fresh air processing system includes: a fresh air processing unit, a fresh air main pipe and a plurality of fresh air branch pipes; wherein:

[0022] The fresh air main pipe is connected to the multiple fresh air branch pipes and the fresh air processing unit; the fresh air processing unit is used to transport fresh air to the multiple fresh air branch pipes through the fresh air main pipe;

[0023] The air outlets of the multiple fresh air branch pipes are respectively directed towards the air supply units.

[0024] Optionally, the air supply units include multiple ones, and the air supply units correspond one-to-one to the air outlets of the fresh air branch pipes.

[0025] Optionally, the target phase change material is disposed at an air outlet of the air supply unit.

[0026] Optionally, the control unit is a programmable logic controller.

[0027] Optionally, the air supply unit is a fan filter unit.

[0028] The embodiment of the present utility model has the following advantages:

[0029] In an embodiment of the present invention, the air supply phase change rectification temperature control system includes: a control unit, a temperature regulation system, a fresh air processing system, an air supply unit, and a temperature sensor; wherein: the temperature regulation system is used to circulate the air in the target space and cool the air transported back to the target space; the fresh air processing system is used to input fresh air into the target space; the air supply unit is equipped with a target phase change material, and the temperature sensor is used to detect the first current temperature of the target phase change material and send the first current temperature of the target phase change material to the control unit; the air supply unit is arranged at the air outlet of the temperature regulation system and the fresh air processing system; the control unit is used to control the temperature regulation system according to the first current temperature of the target phase change material. Through the present invention, the temperature requirements of factories with high temperature fluctuation range requirements can be met, and the temperature of factories with high temperature fluctuation range requirements can be ensured to be within a constant range. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] In order to more clearly illustrate the technical solution of the present invention, the following is a brief introduction to the drawings required for the description of the present invention. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0031] Figure 1 This is a structural diagram of an air supply phase change rectification temperature control system according to an embodiment of the utility model;

[0032] Figure 2 This is a structural diagram of another air supply phase change rectification temperature control system according to an embodiment of the present utility model;

[0033] Figure 3 This is a flow chart of temperature control steps in an embodiment of the present invention.

[0034] Description of reference numerals:

[0035] 10. Air supply phase change rectification temperature control system, 110. Control unit, 120. Temperature adjustment system, 130. Fresh air processing system, 140. Air supply unit, 150. Temperature sensor, 160. Target phase change material;

[0036] 121, return air duct, 122, direct digital control dry coil, 123, chilled water pipe, 124, electric valve unit, 1211, return air outlet;

[0037] 131. Fresh air handling unit, 132. Fresh air main pipe, 133. Fresh air branch pipe;

[0038] 20. Target space, 210. Factory equipment. DETAILED DESCRIPTION

[0039] To make the above-mentioned purposes, features, and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments. It should be understood that the embodiments described are only a portion of the embodiments of the present invention, not all of them. All other embodiments derived by persons of ordinary skill in the art based on the embodiments of the present invention without inventive effort are also within the scope of protection of the present invention.

[0040] In order to meet the temperature requirements of factories with high temperature fluctuation range, the embodiment of the present invention controls the temperature control system in combination with the temperature of the phase change material set on the air supply unit; on the one hand, the phase change temperature range of the phase change material can be near the preset temperature, so as to ensure that the temperature of the air sent from the air supply unit to the factory is near the preset temperature through the heat absorption and heat release capabilities of the phase change material; on the other hand, based on the current temperature of the phase change material, the temperature control system can be intervened in advance to avoid the phase change material from completely changing phase, which makes it impossible to continue to stabilize the temperature of the air sent to the factory. Specifically, please refer to Figure 1 , Figure 1 A structural schematic diagram of an air supply phase change rectification temperature control system according to an embodiment of the present utility model is shown.

[0041] like Figure 1 As shown, the air supply phase change rectification temperature control system 10 may include: a control unit 110, a temperature adjustment system 120, a fresh air processing system 130, an air supply unit 140 and a temperature sensor 150; wherein:

[0042] a temperature regulating system 120 for circulating the air in the target space 20 and cooling the air delivered back to the target space 20;

[0043] A fresh air processing system 130 is used to input fresh air into the target space 20;

[0044] The air supply unit 140 is provided with a target phase change material 160. The temperature sensor 150 is used to detect a first current temperature of the target phase change material 160 and transmit the first current temperature of the target phase change material 160 to the control unit 110. The air supply unit 140 is provided at the air outlet of the temperature control system 120 and the fresh air treatment system 130.

[0045] The control unit 110 is configured to control the temperature adjustment system 120 according to a first current temperature of the target phase change material 160 .

[0046] In practical applications, the air supply phase change rectification temperature control system 10 may include:

[0047] The temperature control system 120 is used to circulate the air in the target space 20 and cool the air that is input back into the target space 20. For example, the temperature control system 120 can extract air that has settled at the bottom of the target space 20, cool it, and then transport it to the top of the target space 20, thereby utilizing the principle of cold air settling to circulate and cool the target space 20. Factory equipment 210 is deployed in the target space 20 and needs to operate in a specific temperature environment.

[0048] The control unit 110 can be used to control the temperature control capability of the temperature control system 120; specifically, the control unit 110 can control the valve, power, etc. of the control unit 110 according to the specific temperature control logic of the temperature control system 120, and the embodiment of the present utility model does not limit this.

[0049] The fresh air processing system 130 can be used to input fresh air into the target space 20 to provide fresh air to the workers in the target space 20 .

[0050] The air supply unit 140 can be set at the air outlet of the temperature control system 120 and the fresh air treatment system 130 so as to mix the fresh air output by the fresh air treatment system 130 and the air cooled by the temperature control system 120 and then deliver them to the target space 20.

[0051] In some feasible embodiments, after the air cooled by the temperature control system 120 is mixed with the fresh air output by the fresh air processing system 130, the fresh air output by the fresh air processing system 130 can be cooled, thereby obtaining air close to a preset temperature and delivering it to the target space 20 through the air supply unit 140. However, this air may still deviate from the preset temperature to a certain extent. In order to ensure the constant temperature in the target space 20, a target phase change material 160 with a phase change temperature range close to the preset temperature can be deployed on the air supply unit 140. For example, if the preset temperature is 25 degrees Celsius, the phase change temperature of the target phase change material 160 can be 24.5 degrees Celsius to 25.5 degrees Celsius. The embodiment of the present utility model does not impose any specific restrictions on the target phase change material 160, which can be modulated and set according to the actual preset temperature.

[0052] For example, the target phase change material 160 can be a mixture of octanoic acid and palmitic acid (mass ratio 90:10), or 40% tetrabutylammonium bromide with 2% borax added, or a mixture of lauryl alcohol and octanoic acid (mass ratio 2:3), or a mixture of dodecyl alcohol and capric acid (mass ratio 52.1:47.9).

[0053] By providing the target phase change material 160 on the air supply unit 140, the temperature of the air delivered to the target space 20 can be rectified. Specifically, when the temperature of the air to be delivered to the target space 20 by the air supply unit 140 is higher than a preset temperature, the target phase change material 160 absorbs heat due to a phase change, thereby lowering the temperature of the air to be delivered to the target space 20 by the air supply unit 140 to the preset temperature. When the temperature of the air to be delivered to the target space 20 by the air supply unit 140 is lower than the preset temperature, the target phase change material 160 dissipates heat due to a phase change, thereby raising the temperature of the air to be delivered to the target space 20 by the air supply unit 140 to the preset temperature.

[0054] In practical applications, a temperature sensor 150 may be deployed on the air supply unit 140. The temperature sensor 150 may be connected to the control unit 110 and output a first current temperature of the target phase change material 160 on the air supply unit 140 to the control unit 110. Based on the first current temperature, the control unit 110 may control the temperature regulation capability of the temperature regulation system 120 to regulate the temperature of the air supplied to the air supply unit 140 by regulating the temperature of the air output by the temperature regulation system 120, thereby maintaining the target phase change material 160 at a preset temperature.

[0055] In an embodiment of the present invention, the air supply phase change rectification temperature control system 10 includes: a control unit 110, a temperature regulation system 120, a fresh air treatment system 130, an air supply unit 140 and a temperature sensor 150; wherein: the temperature regulation system 120 is used to circulate the air in the target space 20 and cool the air transported back to the target space 20; the fresh air treatment system 130 is used to input fresh air into the target space 20; the target phase change material 160 is deployed on the air supply unit 140, and the temperature sensor 150 is used to detect the first current temperature of the target phase change material 160 and send the first current temperature of the target phase change material 160 to the control unit 110; the air supply unit 140 is arranged at the air outlet of the temperature regulation system 120 and the fresh air treatment system 130; the control unit 110 is used to control the temperature regulation system 120 according to the first current temperature of the target phase change material 160. Through the embodiment of the present invention, the temperature control system 120 is controlled in combination with the temperature of the phase change material set on the air supply unit 140; on the one hand, the phase change temperature range of the phase change material can be near the preset temperature, so as to ensure that the temperature of the air sent into the factory from the air supply unit 140 is near the preset temperature through the heat absorption and heat release ability of the phase change material; on the other hand, based on the current temperature of the phase change material, the temperature control system 120 can be intervened in advance to avoid the phase change material from completely changing phase, which makes it impossible to continue to stabilize the temperature of the air sent into the factory.

[0056] In one embodiment of the present invention, the temperature adjustment system 120 includes:

[0057] The return air duct 121 has a return air port 1211 at one end and an air outlet at the other end; wherein the return air port 1211 is provided at the bottom area of ​​the target space 20;

[0058] Direct digital control dry coil 122, arranged at the air outlet of return air duct 121;

[0059] The chilled water pipe 123 is connected to the direct digital control dry coil 122 ; the chilled water pipe 123 is used to transport cooling medium to the direct digital control dry coil 122 .

[0060] In some feasible embodiments, the temperature adjustment system 120 may include a return air duct 121 , a direct digital control dry coil 122 (DDC) and a chilled water pipe 123 .

[0061] One end of the return air duct 121 may be provided with a return air port 1211, which may be located at the bottom of the target space 20 to extract air deposited at the bottom from the target space 20 for cooling. The other end of the return air duct 121 may be provided with an air outlet, which may face the air inlet of the air supply unit 140. A fan may be provided in the return air duct 121 to transport air from the return air port 1211 of the return air duct 121 to the air outlet of the return air duct 121 and then to the air inlet of the air supply unit 140.

[0062] Direct digital control dry coil 122 can be installed at the outlet of return air duct 121 and connected to chilled water pipe 123. Chilled water pipe 123 can be used to supply cooling medium to direct digital control dry coil 122 to reduce the temperature of air entering the air inlet of air supply unit 140 from the outlet of return air duct 121. The cooling medium can be selected according to actual conditions, for example, a mixture of difluoromethane (R-32) and pentafluoroethane (R-125).

[0063] In practical applications, the control unit 110 can control the flow of the chilled water pipe 123 to adjust the flow of the cooling medium entering the direct digital control dry coil 122 , thereby adjusting the temperature control capability of the temperature control system 120 .

[0064] In one embodiment of the present invention, the temperature adjustment system 120 may further include: an electric valve unit 124 disposed in the chilled water pipe 123; and a control unit 110 for controlling the opening of the electric valve unit 124 according to the first current temperature of the target phase change material 160 .

[0065] In some feasible embodiments, the temperature control system 120 may further include an electric valve unit 124, which may be disposed in the chilled water pipe 123. The control unit 110 may adjust the opening of the electric valve unit 124 to adjust the flow rate of the cooling medium entering the direct digital control dry coil 122 from the liquid inlet end of the chilled water pipe 123, thereby adjusting the temperature control capability of the direct digital control dry coil 122.

[0066] In one embodiment of the present invention, the chilled water pipe 123 may include an inlet pipe and an outlet pipe, and the inlet pipe and the outlet pipe are respectively connected to the direct digital control dry coil 122;

[0067] A water inlet pipe, used to input cooling medium to the direct digital control dry coil 122;

[0068] The outlet pipe is used to output the cooling medium after absorbing heat to directly digitally control the dry coil 122;

[0069] The electric valve unit 124 is provided in the water inlet pipe.

[0070] In some feasible embodiments, the chilled water pipe 123 may include an inlet pipe and an outlet pipe; wherein the inlet pipe and the outlet pipe may be respectively connected to the direct digital control dry coil 122; specifically, the inlet pipe may be used to input a cooling medium into the direct digital control dry coil 122 connection, and the outlet pipe may be used to output the cooling medium after absorbing heat in the direct digital control dry coil 122 connection to the direct digital control dry coil 122 connection.

[0071] The electric valve unit 124 can be set in the water inlet pipe; thus, the control unit 110 can control the flow of the cooling medium entering the direct digital control dry coil 122 connection from the water inlet pipe by controlling the opening of the electric valve unit 124, thereby adjusting the temperature regulation capacity of the direct digital control dry coil 122 connection.

[0072] In one embodiment of the present invention, the temperature adjustment system 120 may include multiple;

[0073] The air outlets of the plurality of return air ducts 121 face the air supply unit 140 at different angles.

[0074] In some feasible embodiments, the temperature control system 120 may include multiple ones; one temperature control system 120 may correspond to a return air duct 121, a direct digital control dry coil 122 and a chilled water pipe 123; the air outlets of the multiple return air ducts 121 of the multiple temperature control systems 120 may be directed toward the air supply unit 140 from different angles to fully mix with the fresh air output by the fresh air system.

[0075] In one embodiment of the present invention, the fresh air processing system 130 includes: a fresh air processing unit 131, a fresh air main pipe 132 and a plurality of fresh air branch pipes 133; wherein:

[0076] The fresh air main pipe 132 is connected to multiple fresh air branch pipes 133 and the fresh air processing unit 131; the fresh air processing unit 131 is used to transport fresh air to the multiple fresh air branch pipes 133 through the fresh air main pipe 132;

[0077] The air outlets of the multiple fresh air branch pipes 133 are respectively directed toward the air supply units 140 .

[0078] In some feasible embodiments, the fresh air treatment system 130 may include a fresh air treatment unit 131 , a fresh air main pipe 132 and a fresh air branch pipe 133 ; wherein the fresh air main pipe 132 may be used to connect multiple fresh air branch pipes 133 and the fresh air treatment unit 131 .

[0079] The fresh air processing unit 131 can be used to generate fresh air close to a preset temperature, and transport the fresh air close to the preset temperature to the multiple fresh air branch pipes 133 through the fresh air main pipe 132.

[0080] In some feasible embodiments, the air outlets of the multiple fresh air branch pipes 133 may each face the air supply unit 140. For example, the air supply unit 140 may include multiple air outlets, and the air outlet of one fresh air branch pipe 133 may face at least one air supply unit 140. The fresh air delivered to the multiple fresh air branch pipes 133 through the fresh air main pipe 132 can be delivered from the multiple fresh air branch pipes 133 to the air supply unit 140, and then input into the target space 20 through the rectification effect of the air supply unit 140.

[0081] In one embodiment of the present invention, a target phase change material 160 is disposed at the air outlet of the air supply unit 140 .

[0082] In some feasible embodiments, the air outlet of the warming system and the air outlet of the fresh air treatment system 130 can face the air inlet of the air supply unit 140; the air outlet of the air supply unit 140 can face the target space 20, and the air outlet of the air supply unit 140 can be provided with a target phase change material 160 to rectify the air entering the target space 20 through the air supply unit 140.

[0083] In one embodiment of the present invention, the air supply units 140 include a plurality of air supply units 140 , and the air supply units 140 correspond one-to-one to the air outlets of the fresh air branch pipes 133 .

[0084] In one embodiment of the present invention, the control unit 110 is a programmable logic controller. For example, the control unit 110 may be a PLC (Programmable Logic Controller).

[0085] In one embodiment of the present invention, the air supply unit 140 is a fan filter unit. For example, the air supply unit 140 may be an FFU (Fan Filter Unit).

[0086] For example, Figure 2 As shown, the control unit 110 may be connected to each temperature sensor 150 and the electric valve unit 124 respectively to receive temperature data detected by each temperature sensor 150 and control the electric valve unit 124 .

[0087] The fresh air processing unit 131 can be connected to each fresh air branch pipe 133 via the fresh air main pipe 132, thereby supplying fresh air to each fresh air branch pipe 133. The air outlet of each fresh air branch pipe 133 can face the air inlet of each air supply unit 140. The air outlet of the air supply unit 140 can be provided with a target phase change material 160; in addition, the air supply unit 140 can also be provided with a temperature sensor 150 for detecting the temperature of the target phase change material 160.

[0088] The air in the target space 20 will enter the return air duct 121 through the return air port 1211, and after being cooled by the direct digitally controlled dry coil 122 at the air outlet of the return air duct 121, it will return to the target space 20 through the air supply unit 140 to cool the factory equipment 210 in the target space 20.

[0089] The chilled water pipe 123 can be connected to the DNC dry coil 122 and provide cooling medium to the DNC dry coil 122 to reduce the temperature of the air returning from the return air port 1211 to the target space 20. The electronic valve unit 124 can be provided on the chilled water pipe 123.

[0090] like Figure 3 As shown:

[0091] Set temperature: First, you can set the phase change starting temperature, phase change temperature and phase change ending temperature of the selected target phase change material 160 in the control unit 110 (the phase change temperature refers to the temperature at which the target phase change material 160 undergoes phase change. Generally, the phase change temperature is set to the supply air temperature of the temperature control system 120 and the fresh air treatment system 130; the phase change starting temperature refers to the lowest temperature during the phase change process of the target phase change material 160; the phase change ending temperature refers to the highest temperature during the phase change process of the target phase change material 160).

[0092] Temperature monitoring: During the operation of the air supply phase change rectification temperature control system 10, the temperature sensor 150 transmits the detected temperature of the target phase change material 160 to the control unit 110 every five minutes. The control unit 110 determines whether the average temperature of the target phase change material 160 is between the phase change starting temperature and the phase change ending temperature.

[0093] Case 1: If the control unit 110 determines that the average temperature of the target phase change material 160 is less than or equal to the phase change starting temperature, it means that the supply air temperature has exceeded the rectification capacity of the target phase change material 160. At this time, the control unit 110 should transmit a signal to reduce the opening of the electric valve unit 124 to the actuator of the chilled water pipe electric valve unit 124. The actuator will operate to reduce the chilled water flow into the direct digital control dry coil 122, and the opening will be adjusted by 1% each time until the signal transmitted by the temperature sensor 150 is greater than the phase change starting temperature, and the actuator of the electric valve unit 124 will no longer adjust the opening.

[0094] Case 2: If the control unit 110 determines that the detected average temperature of the target phase change material 160 is greater than the phase change starting temperature, it further determines whether the detected average temperature of the target phase change material 160 is greater than or equal to the phase change ending temperature. If the detected average temperature of the target phase change material 160 is greater than or equal to the phase change ending temperature, it means that the supply air temperature has exceeded the rectification capacity of the target phase change material 160. At this time, the control unit 110 should transmit a signal to increase the opening of the electric valve unit 124 to the actuator of the electric valve unit 124. The actuator will operate to increase the chilled water flow into the direct digital control dry coil 122, and the opening will be adjusted by 1% each time until the signal transmitted by the temperature sensor 150 is less than the phase change ending temperature, and the actuator of the electric valve unit 124 will no longer adjust the opening.

[0095] Case 3: If the control unit 110 determines that the detected average temperature of the target phase change material 160 is greater than the phase change starting temperature, it further determines whether the detected average temperature of the target phase change material 160 is less than the phase change ending temperature. If the detected average temperature of the target phase change material 160 is less than the phase change ending temperature, the control unit 110 does not need to output a signal for adjusting the opening of the electric valve unit 124, and the control unit 110 controls the system to enter the next monitoring cycle.

[0096] Based on the above-mentioned air supply phase change rectification temperature control system, an embodiment of the present utility model also provides a temperature control method; specifically, the control unit can first obtain the current temperature of the target phase change material on the air supply unit from the temperature sensor, that is, the first current temperature.

[0097] After obtaining the first current temperature, the control unit can control the temperature regulation system in the air supply phase change rectification temperature control system according to the first current temperature to adjust the temperature regulation capacity of the temperature regulation system, thereby stabilizing the temperature of the air sent into the target space by the air supply unit.

[0098] In some feasible embodiments, a preset temperature, i.e., a target temperature, can be set first; specifically, the user can first execute a setting instruction to generate a target temperature; the control unit can determine and store the target temperature in response to the setting instruction, so that control can be performed based on the target temperature in subsequent control processes.

[0099] In practical applications, the control unit may first obtain the current temperature of the target phase change material on the air supply unit from the temperature sensor, that is, the first current temperature.

[0100] After obtaining the first current temperature of the target phase change material, the control unit can control the temperature control system according to the first current temperature and the target temperature; specifically, when the first current temperature is higher than the target temperature, the temperature control capacity of the temperature control system can be increased; when the first current temperature is lower than the target temperature, the temperature control capacity of the temperature control system can be reduced. The embodiment of the present utility model does not limit this.

[0101] In one embodiment of the present invention, the air supply unit may include multiple air supply units, each of which is provided with a target phase change material. Based on this, when obtaining the first current temperature, the following sub-steps may be performed:

[0102] Sub-step 11: Acquire the second current temperature of the target phase change material in each air supply unit.

[0103] In some feasible embodiments, a temperature sensor may be provided at each air supply unit to respectively detect the temperature of the target phase change material in each air supply unit.

[0104] Sub-step 12: Calculate an average value of multiple second current temperatures to obtain the first current temperature.

[0105] After obtaining the second current temperature of each target phase change material detected by each temperature sensor, the control unit may calculate an average value of the plurality of second current temperatures to obtain the first current temperature.

[0106] In some feasible embodiments, the phase change of the target phase change material is a process; therefore, the target temperature can be set according to the phase change process of the target phase change material. Specifically, the target temperature can include a phase change starting temperature at which the phase change of the target phase change material begins.

[0107] In practical applications, it may be determined whether the first current temperature of the target phase change material is greater than the phase change starting temperature, so as to determine whether the temperature adjustment capacity of the temperature adjustment system is too large.

[0108] In some possible embodiments, the temperature regulation system includes:

[0109] A return air duct, with a return air inlet at one end and an air outlet at the other end; wherein the return air inlet is arranged at the bottom area of ​​the target space;

[0110] Direct digital control dry coil, installed at the outlet of the return air duct;

[0111] Chilled water pipe, connected to the direct digital control dry coil; the chilled water pipe is used to transport cooling medium to the direct digital control dry coil;

[0112] The electric valve unit is arranged in the chilled water pipe.

[0113] One end of the return air duct may be provided with a return air inlet, which may be located at the bottom area of ​​the target space to extract air accumulated at the bottom from the target space for cooling. The other end of the return air duct may be provided with an air outlet, which may face the air inlet of the air supply unit. A fan may be provided in the return air duct to transport air from the return air inlet of the return air duct to the air outlet of the return air duct and then to the air inlet of the air supply unit.

[0114] The DDC dry coil can be installed at the return air duct outlet and connected to a chilled water pipe. The chilled water pipe can be used to deliver a cooling medium to the DDC dry coil, thereby reducing the temperature of the air entering the air inlet of the air supply unit from the return air duct outlet. The cooling medium can be selected based on actual conditions, for example, a mixture of difluoromethane (R-32) and pentafluoroethane (R-125).

[0115] In practical applications, the control unit can control the flow of the chilled water pipe to adjust the flow of the cooling medium entering the direct digital control dry coil, thereby adjusting the temperature control capacity of the temperature control system.

[0116] In one embodiment of the present invention, the temperature control system may further include: an electric valve unit disposed in the chilled water pipe; and a control unit configured to control the opening of the electric valve unit according to the first current temperature of the target phase change material.

[0117] In some feasible embodiments, the temperature control system may further include an electric valve unit, which may be installed in the chilled water pipe. The control unit may adjust the opening of the electric valve unit to adjust the flow rate of the cooling medium entering the direct digital control dry coil from the liquid inlet end of the chilled water pipe, thereby adjusting the temperature control capacity of the direct digital control dry coil.

[0118] When it is determined that the first current temperature of the target phase change material is not greater than the phase change starting temperature, the control unit can determine that the temperature control capacity of the temperature control system is too large; at this time, the control unit can reduce the opening of the electric valve unit in the temperature control system to reduce the temperature control capacity of the direct digital control dry coil.

[0119] In one embodiment of the present invention, the opening of the electric valve unit can be reduced by:

[0120] The opening degree of the electric valve unit is reduced according to a first preset step length.

[0121] In some feasible embodiments, when reducing the opening of the electric valve unit, the opening of the electric valve unit may be reduced according to a preset first preset step size.

[0122] The first preset step size can be set according to actual conditions, for example, 1%, which is not limited in the embodiment of the present invention.

[0123] In some other feasible embodiments, the target temperature may further include a phase change termination temperature at which the phase change of the target phase change material begins.

[0124] In practical applications, it can be determined whether the first current temperature of the target phase change material is lower than the phase change termination temperature, so as to determine whether the temperature adjustment capability of the temperature adjustment system is too low.

[0125] When it is determined that the first current temperature of the target phase change material is not less than the phase change termination temperature, the control unit can determine that the temperature control capacity of the temperature control system is too small; at this time, the control unit can increase the opening of the electric valve unit in the temperature control system to enhance the temperature control capacity of the direct digital control dry coil.

[0126] In one embodiment of the present invention, the opening of the electric valve unit can be increased by the following methods:

[0127] The opening degree of the electric valve unit is increased according to a second preset step size.

[0128] In some feasible embodiments, when increasing the opening of the electric valve unit, the opening of the electric valve unit may be increased according to a preset second preset step size.

[0129] The second preset step size can be set according to actual conditions, for example, 1%, which is not limited in the embodiment of the present invention.

[0130] In one embodiment of the present invention, after controlling the temperature adjustment system in the air supply phase change rectification temperature control system according to the first current temperature of the target phase change material, the method may further include the following steps:

[0131] After a preset time interval, a third current temperature of the target phase change material is acquired, and the temperature adjustment system is controlled according to the third current temperature of the target phase change material.

[0132] In some feasible embodiments, when the first preset step size or the second preset step size is small, multiple adjustments may be required to stabilize; therefore, after controlling the temperature regulation system in the air supply phase change rectification temperature control system according to the first current temperature of the target phase change material, the control unit can re-acquire the current third current temperature of the target phase change material after a preset time interval, and control the temperature regulation system according to the third current temperature.

[0133] Specifically, the temperature adjustment system may be controlled according to the third current temperature and the target temperature, so as to gradually stabilize the temperature of the target space at the target temperature.

[0134] The above is a detailed introduction to the air supply phase change rectification temperature control system provided. This article uses specific examples to illustrate the principles and implementation methods of the present invention. The description of the above embodiments is only used to help understand the structure and core ideas of the present invention; at the same time, for general technical personnel in this field, based on the ideas of the present invention, there will be changes in the specific implementation methods and application scope. In summary, the content of this specification should not be understood as a limitation on the present invention.

Claims

1. An air supply phase change rectification temperature control system, characterized in that: The air supply phase change rectification temperature control system includes: a control unit, a temperature adjustment system, a fresh air processing system, an air supply unit and a temperature sensor; wherein: The temperature control system is used to circulate the air in the target space and cool the air transported back to the target space; The fresh air processing system is used to input fresh air into the target space; The air supply unit is provided with a target phase change material, and the temperature sensor is used to detect a first current temperature of the target phase change material and send the first current temperature of the target phase change material to the control unit; the air supply unit is provided at the air outlet of the temperature regulation system and the fresh air treatment system; The control unit is configured to control the temperature adjustment system according to the first current temperature of the target phase change material.

2. The air supply phase change rectification temperature control system according to claim 1, characterized in that: The temperature regulation system comprises: A return air duct, having a return air inlet at one end and an air outlet at the other end; wherein the return air inlet is arranged at the bottom area of ​​the target space; A direct digital control dry coil is provided at the air outlet of the return air duct; A chilled water pipe is connected to the direct digital control dry coil; the chilled water pipe is used to transport a cooling medium to the direct digital control dry coil.

3. The air supply phase change rectification temperature control system according to claim 2, characterized in that: The temperature regulation system further comprises: An electric valve unit is provided in the chilled water pipe; and the control unit is used to control the opening of the electric valve unit according to the first current temperature of the target phase change material.

4. The air supply phase change rectification temperature control system according to claim 3, characterized in that: The chilled water pipe includes a water inlet pipe and a water outlet pipe, and the water inlet pipe and the water outlet pipe are respectively connected to the direct digital control dry coil; The water inlet pipe is used to input cooling medium into the direct digital control dry coil; The water outlet pipe is used to output the cooling medium after absorbing heat to the direct digital control dry coil; The electric valve unit is arranged in the water inlet pipe.

5. The air supply phase change rectification temperature control system according to claim 2, characterized in that: The temperature regulation system includes a plurality of; The air outlets of the multiple return air ducts are respectively directed toward the air supply unit from different angles.

6. The air supply phase change rectification temperature control system according to claim 1, characterized in that: The fresh air treatment system includes: a fresh air treatment unit, a fresh air main pipe and a plurality of fresh air branch pipes; wherein: The fresh air main pipe is connected to the multiple fresh air branch pipes and the fresh air processing unit; the fresh air processing unit is used to transport fresh air to the multiple fresh air branch pipes through the fresh air main pipe; The air outlets of the multiple fresh air branch pipes are respectively directed towards the air supply units.

7. The air supply phase change rectification temperature control system according to claim 6, characterized in that: The air supply units include multiple ones, and the air supply units correspond one-to-one to the air outlets of the fresh air branch pipes.

8. The air supply phase change rectification temperature control system according to claim 1, characterized in that: The target phase change material is disposed at the air outlet of the air supply unit.

9. The air supply phase change rectification temperature control system according to claim 1, characterized in that: The control unit is a programmable logic controller.

10. The air supply phase change rectification temperature control system according to claim 1, characterized in that: The air supply unit is a fan filter unit.

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