36 results about "Ventilation Tests" patented technology

The invention relates to a method for evaluating the comfort of wind speed for meat chickens and longitudinal ventilation testing cabins. The method comprises the following steps: (1) placing N longitudinal ventilation testing cabins in an artificial climate cabin with same temperature and humidity, selecting a batch of healthy chickens, dividing the healthy chickens into N groups randomly, respectively putting the grouped healthy chickens into cabin bodies of all the longitudinal ventilation test cabins; (2) designing N different wind speeds and starting N longitudinal ventilation testing cabins; (3) carrying out data acquisition of physiological, behavior and endocrine indexes; (4) according to test results, obtaining a dose-effect relationship curve model between the wind speed and all physiological, behavior and endocrine indexes of the meat chickens; (5) according to the dose-effect relationship curve model, in combination with the range of the physiological, behavior and endocrine indexes of the meat chickens when the meat chickens live in a comfortable environment, obtaining a most comfortable wind speed for the meat chickens under the temperature and humidity condition of the environment. The method has the advantages that the wind speed can be accurately adjusted and controlled, and various data of the meat chickens can be acquired under no catching and no stress response.

The invention discloses a design method of a special pressure measurement rake for a deformed flow channel of a wing-body fusion aircraft ventilation model. The design method of the pressure measurement rake obtains the deformation of the deformed internal flow channel under the interaction between the internal flow of the internal flow channel and the external flow of the model through a numerical simulation method. Flow characteristics, according to the numerical simulation results, the measurement section is divided into sub-regions, and the area of ​​the sub-region is used as the weight of the internal flow parameters of each sub-region to determine the number and position of the total pressure measurement points and static pressure measurement points on the measurement section The rake body was designed to reduce the effect of blocking interference. Through the above process, a special pressure measuring rake suitable for the deformed inner flow channel of the aircraft ventilation test model with fused wing body layout was designed.

The invention discloses an inverted ventilation test method for a multi-stage fan station ventilation system in an underground metal mine. The adopted multi-stage fan station ventilation system is composed of a downcast shaft (1), a return shaft (7), an upper middle segment horizontal roadway, a lower middle segment horizontal roadway, a middle segment air intake fan (3), an upper middle segment horizontal air door (8), a lower middle segment return fan (5'), a lower middle segment air intake fan (3'), a lower middle segment horizontal air door (8'), a lower middle segment return air raise (9') and an upper middle segment return air raise (9). The multi-stage fan station ventilation system is divided into an air intake side and an air return side according to the demarcation point of the positive relative static pressure and the negative relative static pressure of an air path, and what kind of inverted ventilation mode is selected according to the location where a catastrophe occurs. According to the method, a basis is provided for inverted ventilation mode selection of an inverted ventilation test of the multi-stage fan station ventilation system, the inverted ventilation process is easy to operate, whole-mine inverted ventilation can be quickly achieved, and the quick responsiveness of mine inverted ventilation serving as an emergency rescue measure of the mine is fully exerted.

The invention provides a detection device for ventilation equipment, comprising: a detection platform, where the ventilation equipment to be detected is placed in a detection area of ​​the detection platform; a power supply detection part, the power supply detection part has a connection terminal, and the connection terminal is opposite to the detection platform The position is movably arranged; the wind force detection part is arranged on the detection platform and is located in front of the ventilation port of the ventilation equipment to be detected. When using the detection device in the present invention, the ventilation equipment to be detected is placed in the detection area, the power supply detection part is used to conduct a power-on test on the wiring board of the ventilation equipment to be detected, and the wind detection part is used to detect the air volume of the ventilation equipment to be detected. ,wind direction. Because the detection device in the present invention can perform power-on test and wind test for the ventilation equipment to be detected, the labor intensity of the staff is effectively reduced, the detection efficiency is improved, the detection cost is reduced, and the detection consistency is ensured and reliability.

A portable multi-functional cardiopulmonary function test device, which can simultaneously meet the three pulmonary function test requirements of cardiopulmonary ventilation test, dynamic cardiopulmonary ventilation test in six-minute walk test and exercise cardiopulmonary ventilation volume test; the device includes a gas collection module, a gas Analysis host module and screen display module; the gas collection module is used to transmit the respiratory gas flow signal and the exhaled gas sample to the gas analysis host module; the gas analysis host module is used for exhaled gas sample concentration detection and gas volume calculation; the The above-mentioned screen display module is mainly used for displaying the real-time data of the real-time pulmonary function parameters, and exporting the data after the test. The portable multifunctional cardiopulmonary function test device of the present application is small in size, easy to carry, has various functions, and is simple in test operation.