13 results about "Cool temperature" patented technology

The invention discloses a method for quickly reducing the cooling temperature of a sample in a low-temperature impact test, which is characterized by comprising the following steps of: putting the sample into a low-temperature tank of an impact testing machine, adding alcohol to submerge the sample by more than 25mm, opening an air valve, slowly introducing liquid nitrogen, and keeping for a certain time after the temperature is reached, so as to ensure that the temperature is uniform. The invention aims to provide the method for quickly reducing the cooling temperature of the sample in the low-temperature impact test, and the method has the characteristics of high cooling rate, simplicity in operation, easiness in popularization and the like, and can meet the requirements of daily urgent test, completion of the test in a short time and provision of a test result.

Calcining system for the thermal treatment of a substance (12), comprising at least one conveying device (14) with a main extension axis (H); which have at least one support facility (14) - at least one heat treatment volume (18) heated by a heating device (16) during the heat treatment with a heating temperature (T_H) and a cooling volume (20) arranged below the heat treatment volume (18) with a cooling temperature (T_K), wherein during the heat treatment the heating temperature (T_H) is greater than the cooling temperature (T_K); - a receiving device (22) designed to receive the substance (12) and to convey it, at least indirectly, into the heat treatment volume (18); - a dispensing device (24) which is arranged along the main extension axis (H) away from the receiving device (22) and is designed to dispense the substance (12) from the conveying device (14) after the thermal treatment; - an endless belt device (26) with an upper section (28) and a lower section (30); wherein the upper section (28) is movable along the main extension axis (H) in a conveying direction (F) from a first section transfer device (32.1) to a second section transfer device (32.2) and wherein the upper section (28) is configured to convey the substance (12) received by the receiving device (22) and conveyed onto the upper section (28) for thermal treatment in the thermal treatment volume (18); wherein the lower section (30) is movable in the cooling volume (20) in a return direction (R) opposite to the conveying direction (F) from the second section transition device (32.2) to the first section transition device (32.1) in the cooling volume (20) in a manner corresponding to the upper section (28); - a housing system (34, 36, 38.1, 38.2, 40.1, 40.2) comprising an upper housing section (34), a lower housing section (36), at least two side housing sections (38.1, 38.2) and at least two end housing sections (40); wherein the calcining system (10) has at least two or more successive conveying devices (14) which are arranged in a cascade form as a substance mixing system.

The invention relates to a cooling unit for storing temperature-sensitive goods at a desired cooling temperature, comprising a cooling compartment (9) for storing the temperature-sensitive goods, an insulation (1) separating the cooling compartment (9) from an ambient space (10), a multi-stage cascade refrigeration system adapted to cool down the cooling compartment (9) to the desired cooling temperature and / or maintain the desired cooling temperature in the cooling compartment (9), said multi-stage cascade refrigeration system comprising at least a high-temperature refrigeration cycle (11) and a low-temperature refrigeration cycle (12), whereas said low-temperature refrigeration cycle (12) comprises a low-temperature evaporator (13) arranged to absorb heat from the cooling compartment (9), and whereas the high-temperature refrigeration cycle (11) comprises a high-temperature condenser (14) arranged to reject heat to the ambient space (10), whereas a high-temperature evaporator (3) of the high-temperature refrigeration cycle (11) is thermally coupled to a low-temperature condenser (4) of the low-temperature refrigeration cycle (12) in order to form an intercooler, whereas said high-temperature evaporator (3) and / or said low-temperature condenser (4) are / is thermally coupled to the insulation (1).

The application relates to a PVC calendering film production process and belongs to the technical field of PVC calendering films. The process comprises the steps of feeding, extruding, forming, cooling, edge cutting and winding. In the cooling step, a first-stage cooling roller, a second-stage cooling roller and a third-stage cooling roller are arranged, the cooling temperatures of the first-stage cooling roller, the second-stage cooling roller and the third-stage cooling roller are sequentially reduced, and a control system is arranged in the cooling step. The control system comprises a temperature measuring module, a temperature control module, a temperature reducing module and a notification module. The temperature measuring module is used for detecting the temperature of the first-stage cooling roller and sending the temperature to the temperature reducing module. After receiving the temperature sent by the temperature measuring module, the temperature reducing module performs difference operation to obtain the corresponding temperatures of the second-stage cooling roller and the third-stage cooling roller and sends the temperatures to the temperature control module. The temperature control module adjusts the temperatures of the second-stage cooling roller and the third-stage cooling roller according to the temperatures. The application has the advantages that the temperatures of the cooling rollers can be controlled, and the probability that the produced PVC calendering film does not meet the requirements is reduced.

This invention relates to a heat treatment method and apparatus for hot-forged blanks, belonging to the field of metal heat treatment technology. The method includes: acquiring eddy current voltage values ​​in response to a trigger signal; determining the material type based on the eddy current voltage values ​​and voltage ranges; matching aeration parameters, cooling temperature, temperature gradient threshold, and temperature difference threshold based on the material type; performing aeration using the aeration parameters and acquiring the surface temperature; selecting the maximum and minimum surface temperatures from the surface temperatures and calculating the surface temperature difference, and calculating the average temperature based on the surface temperatures; determining the core temperature based on the material type and average temperature and calculating the temperature difference; correcting the aeration parameters using the surface temperature difference and the temperature difference value, and performing aeration based on the corrected aeration parameters until the core temperature is no greater than the cooling temperature, the surface temperature difference is no greater than the temperature gradient threshold, and the temperature difference is no greater than the temperature difference threshold, at which point aeration is stopped and cooling is complete. This invention balances the cooling effect of raw materials at different locations, improving the quality of the raw materials.

The application relates to a coupling type floor heating system cold-heat linkage control method and a coupling type floor heating system. The control method is characterized in that indoor ring temperature is acquired, a heating start threshold and a heating temperature difference of the indoor ring temperature are calculated, and a cooling temperature difference of the indoor ring temperature and a cooling start threshold is calculated; if the heating temperature difference is greater than or equal to a heating temperature difference threshold, heating control is performed; if the cooling temperature difference is greater than or equal to a cooling temperature difference threshold, cooling control is performed; and in other cases, standby is performed. The control method realizes that the heat pump floor heating system can operate under multiple working conditions: in summer, floor radiation cooling is combined with indoor air dehumidification to provide a cool and comfortable indoor environment for users; in winter, heat is extracted from central heating water to improve the problem of insufficient central heating effect; and in the spring and autumn transition seasons, especially before and after central heating, the system is switched to an air source heat pump mode, heat is absorbed from outdoor air through a finned tube heat exchanger, and the indoor temperature is maintained warm and comfortable.

The invention discloses a refrigeration energy-saving system for metering energy for central air-conditioning cold supply equipment and calculating energy-saving amount in different rooms. The energy consumption of a water chilling unit, chilled water circulation equipment and the like before and after energy saving is metered respectively; the intelligent temperature controller for calculating the energy-saving amount calculates the energy-saving amount of each room; the volume of the room is input; setting the lowest limit temperature of refrigeration; calculating the minimum room limit temperature and the heat difference of each kilogram of dry air in the high-temperature wet air after up-regulation; and the heat difference multiplies the mass of the dry air in the indoor volume to obtain the energy-saving amount of the room. After the refrigeration period is finished, subtracting the overall energy consumption after energy saving from the overall energy consumption before energy saving to obtain the overall energy-saving amount; the proportion eta of the energy-saving amount of each room to the overall energy-saving amount is calculated, the sum of the overall energy-saving amount is multiplied by eta to obtain the energy-saving sum of the rooms, and the sum of the energy-saving amount of the rooms before energy saving is subtracted by the refrigeration fee of the rooms before energy saving to obtain the refrigeration fee paid for the rooms at the current period.

To inexpensively suppress a situation where melted frost on a cooler is scattered in a storage chamber.SOLUTION: In a cooling operation for cooling a storage chamber 12, when a door sensor 14 detects that a door 13 is opened, a control unit 17 of a cooling storage 10 stops a circulation fan 30 if it is in operation, continues a stop state if it is stopped, and performs first determination when the door sensor 14 detects that the opened door 13 is closed. The first determination is whether or not the opening time of the door 13 is equal to or longer than a threshold time, or whether or not the detected temperature of the cooler temperature sensor 35 is equal to or higher than a first threshold temperature. When the opening time is equal to or longer than the threshold time, or when the detected temperature is equal to or higher than the first threshold temperature, the control unit 17 re-operates the stopped circulation fan 30 at a low speed in the variable range.SELECTED DRAWING: Figure 3

The application discloses a multi-partition thermal vacuum environment test simulation system, which comprises a vacuum tank body, a bottom plate mounting frame, a first bottom plate frame and a second bottom plate frame are arranged in the vacuum tank body; a first low-power liquid cooling temperature control plate, a first high-power liquid cooling temperature control plate and a first radiation heat cage small cabin are mounted on the first bottom plate frame; a second low-power liquid cooling temperature control plate, a second high-power liquid cooling temperature control plate and a second radiation heat cage small cabin are mounted on the second bottom plate frame; an expansion plate type auxiliary heat sink is arranged on the first bottom plate frame and the second bottom plate frame; the temperature controller in the multi-partition thermal vacuum environment test simulation system can control the temperature of each region according to the temperature control requirements of each region, two sets of refrigeration compressors arranged in the temperature controller can make each temperature control region have the ability of independent temperature control, and the technical problems that the temperature of each temperature region in the multi-partition structure of the spacecraft part, component and single machine satellite-borne traveling wave tube amplifier thermal vacuum environment test cannot be independently controlled and each region interferes with each other in the control process are solved.

The invention discloses a wide-temperature-range extremely-low-temperature storage test device which comprises a high-low-temperature storage box, a temperature monitoring control system and a heating / cooling system. The high-low temperature storage box is used for storing samples; the temperature monitoring control system is used for monitoring the temperature of the high-low temperature storage box in real time and controlling the heating / cooling system to heat or cool the high-low temperature storage box; the heating / cooling system is used for heating or cooling the high-low temperature storage box; the heating temperature is room temperature to 200 DEG C, and the cooling temperature is room temperature to-180 DEG C; the multi-temperature storage can be realized, the utilization rate is improved, the cost is reduced, and the application is wider.

The application provides a water conservancy structure leakage monitoring system and method, and the system comprises: an active heating control module, which applies a controllable thermal excitation to a grating array temperature sensing module; the grating array temperature sensing module generates a temperature distribution of a region to be measured, and the temperature distribution comprises a reference temperature distribution before the controllable thermal excitation is applied, a heating temperature distribution during the controllable thermal excitation is applied, and a cooling temperature distribution after the controllable thermal excitation is stopped; a leakage identification module, which determines a temperature-time response curve based on the reference temperature distribution, the heating temperature distribution and the cooling temperature distribution, extracts a temperature rise rate, a maximum temperature rise amplitude, a peak time, a cooling rate and a thermal time constant in the temperature-time response curve, determines a comprehensive discrimination index based on the above parameters, and determines whether the water conservancy structure has leakage based on the comprehensive discrimination index. The application improves the sensitivity and accuracy of leakage monitoring.

The invention relates to the technical field of heating equipment, in particular to a temperature control method of heating equipment, the heating equipment and a temperature control system.The temperature control method of the heating equipment comprises the steps that a target cooling temperature input by a user is received, and a cooling mode is started; in the cooling mode, a first temperature value of target heating equipment at the current moment is obtained in real time; obtaining a temperature change rate according to a historical temperature value and the first temperature value; obtaining a predicted temperature according to the temperature change rate and the first temperature value; and according to the predicted temperature and the target cooling temperature, a target water adding strategy is determined, so that the temperature control system dynamically adjusts the water adding rate of the target heating equipment according to the target water adding strategy until the real-time temperature of the target heating equipment reaches the target cooling temperature. According to the method, through real-time temperature monitoring and temperature change prediction, the water adding rate is dynamically adjusted, and accurate cooling control over the temperature of the heating equipment is achieved.

A method and system to achieve heating and cooling temperature within one or more zones when occupied is disclosed. The method comprises training, via at least one processor, a machine learning (ML) model based at least on historical temperature data and input conditions of one or more zones; receiving temperature data from one or more sensors and one or more input conditions of the one or more zones for a predefined time period in real-time; determining a threshold time period to achieve heating or cooling temperature within the one or more zones when occupied using the trained ML model, based at least on the received temperature data and input conditions of the one or more zones for the predefined time period; and adjusting the one or more temperature set points to achieve heating or cooling temperature within the one or more zones when occupied.