6 results about "Liquid temperature" patented technology

The present application relates to the technical field of medical devices, in particular to a face pressure sore prevention device. The device comprises a shell, a liquid storage frame, a monitoring mechanism and the like. A circular hole is formed on the top of the shell. The shell is provided with the liquid storage frame. The liquid storage frame is provided with the monitoring mechanism. The monitoring mechanism is used for monitoring the temperature of the liquid in the liquid storage frame. The monitoring mechanism, the heating pipe and the refrigeration pipe can be used to monitor the water temperature in the liquid storage frame in real time and automatically adjust the heating or refrigeration. The liquid in the input water bag can be maintained in a preset comfortable temperature range. The defects of the prior art that the temperature of the air bag is easily affected by the environment are overcome. The discomfort of the patient's face caused by the overcooling or overheating of the temperature is avoided. The constant warm support can significantly improve the comfort of the patient in the long time prone position treatment, promote the local blood circulation of the face, enhance the tissue tolerance, and further reduce the risk of pressure injury on the basis of dynamic decompression.

The application discloses a device for detecting the compressive strength of concrete under low temperature and high salt fog environment, and relates to the technical field of concrete durability test equipment. The device comprises a shell, an opening and closing device, a liquid adding device, a liquid level sensor, a liquid discharging valve, a liquid temperature sensor, a liquid concentration sensor, a spraying device, a temperature and humidity sensor, a fog concentrator, an air supply device, a heat leading device and a cold leading device connected to the air supply device, a base frame and a compressive strength detector. The device has the advantages that full-automatic closed-loop control can be realized on the liquid level, concentration, temperature of the soaking liquid, air temperature and humidity, and salt fog concentration, the test conditions are stable and repeatable, the multi-component pipes and nozzles of the spraying device are uniformly distributed, natural diffusion and settlement of the salt fog are realized, direct spraying is avoided, the air supply device cooperates with the heat leading device and the cold leading device, uniform heating and cooling are realized through air circulation, direct cold and hot collision is avoided, and the complete deterioration process of "salt fog wetting, low temperature freezing and dry concentration" can be accurately reproduced.

The utility model discloses a steel ball quenching device. The steel ball quenching device comprises a base, a ball flow guide mechanism and a collecting box, the base is provided with a quenching bath, and an opening of the quenching bath is upward; the ball flow guide mechanism is arranged on the base and comprises a flow guide frame, the flow guide frame is provided with a flow guide groove, the flow guide groove is located in the quenching pool and is obliquely arranged downwards in the length direction, the lower end of the flow guide groove is provided with a ball outlet, and the flow guide groove is provided with a ball inlet; the collecting box is arranged on the base, and the balls in the flow guide groove can enter the collecting box through the ball outlet. As the diversion trench is positioned in the quenching bath, the steel ball can roll for a longer distance in the quenching bath, the movement duration and distance of the steel ball in the quenching bath are improved, and the quenching uniformity is improved; and the steel balls enter the collecting box after more sufficient heat dissipation, heat is easily dispersed to all positions of the quenching pool, the risk that the temperature of quenching liquid near the collecting box is too high is avoided, and the quenching effect is improved.

The present application relates to the technical field of oil production engineering, and particularly relates to a method for determining water-mixing and temperature-raising parameters of an oil well wellbore, which aims to solve the technical problem that the water-mixing and temperature-raising process cannot determine the water-mixing amount and the mixed water temperature in the related art. The method for determining water-mixing and temperature-raising parameters of an oil well wellbore comprises the following steps: S1: finding out a relationship function corresponding to the wellhead produced liquid temperature and the produced liquid amount of an oil well in different seasons; S2: according to the produced liquid amount Q1 of a target oil well, selecting a corresponding relationship function to calculate the original produced liquid temperature T1 of the target oil well; S3: setting a new produced liquid temperature T0 of the target oil well, and according to an energy conservation calculation formula Q2T2=k(Q1+Q2)T0-Q1T1, calculating the required water-mixing amount Q2 and the water-mixing temperature T2 of the target oil well, wherein T0 is greater than the crude oil freezing point of the target oil well, and the coefficient k is 0.7-1. According to the production basic data of the oil well, the method simulates and calculates the required water-mixing amount and the water-mixing temperature of the wellbore water-mixing and temperature-raising process, and provides data guidance for the wellbore water-mixing process.

The utility model discloses a flow regulating valve, include: valve body, be equipped with the water pass hole's check element and the valve rod of wearing in the water pass hole, be equipped with the limit step and the valve core on the valve rod, be equipped with the water pass channel on the flow regulating valve, be equipped with the temperature sensing spring of the direction of promoting the valve rod to the water outlet cavity in the valve body, and the elastic coefficient of temperature sensing spring increases with temperature rise, and the check element can move along the axial between limit step and the valve core. The utility model discloses through the cooperation of the slidable check element and the temperature sensing spring that can reduce the elastic coefficient according to the reduction of temperature, realizes the automatic regulation of flow regulating valve opening degree, makes flow regulating valve when two kinds of circumstances of hydraulic pressure increase and liquid temperature reduction, can automatically reduce the liquid flow of flowing out flow regulating valve, when the downstream installation of flow regulating valve has instant heating device, can reduce the liquid flow of entering instant heating device, to guarantee that instant heating device can heat the liquid that flows to the set temperature, improves the use experience of user.

The application relates to the technical field of liquid cooling heat dissipation, and provides a control method and a control system of a redundant dual-mode refrigeration device. In the application, when the cooling liquid temperature is greater than a first temperature threshold, the second refrigeration circuit is started, and the three-way valve is adjusted to guide the inlet and the second outlet, when the cooling liquid temperature is not greater than the first temperature threshold, the on-circuit of the three-way valve is adjusted according to the outer water temperature, and the first refrigeration circuit or the second refrigeration circuit is selectively passed through to dissipate heat. The way of starting the first refrigeration circuit or the second refrigeration circuit to refrigerate according to the cooling liquid temperature and the outer water temperature enables the cooling liquid to be cooled by the first refrigeration circuit or the second refrigeration circuit in different temperature ranges, effectively cools the cooling liquid, enhances the stability of the system, and enables the redundant dual-mode refrigeration device to work stably for a long time.