31results about How to "Precise water injection" patented technology

The invention provides a method for accurately monitoring the quantity of water in a water tank of a solar water heater, including the steps: at least one weighting sensor is used for measuring at least partial weight of the water tank of the solar water heater so as to obtain the measured value of the measured weight; and according to the no-load measured value, the full load measured value and the current measured value of the water tank, the percentage ratio of water quantity of the current water quantity to the maximum water quantity of the water tank is calculated, and the shift of the weighting sensor is periodically and automatically calibrated so that the accurate percentage ratio of the water quantity can be obtained.

The invention belongs to the technical field of heating equipment, and provides an automatic water injection system and drainage system of a gas heating water heater and the gas heating water heater with the same. The automatic water injection system comprises a main control board, an external water pressure sensor which is used for detecting the water pressure of a water inlet pipe of the heatingwater heater and located at the front end of an inlet valve, a check valve which is used for controlling the water flow only to flow into a unit but not flow out of the unit and located at the frontend of the inlet valve and an internal water pressure sensor which is used for detecting the internal water pressure of the heating water heater and located at the rear end of the inlet valve. The automatic drainage system comprises a main control board, a drain valve which is used for pressure relief of the unit and drainage of the heating water heater and located at the front end of a water inlet of a water pump, an internal water pressure sensor and a rechargeable direct-current power source. According to the automatic water injection system and drainage system of the gas heating water heater and the gas heating water heater with the same, an automatic water injection method is adopted to replace manual water injection, and the unmanned intelligent operation of the unit water injectionoperation and timely water injection are realized; and a function of automatic drainage when a fault occurs is increased, and the potential safety hazards of unit freezing due to water freezing in theunit are eliminated.

The present invention provides a method and device for identifying and filling water on an intelligent tea table, by identifying the number of people around the tea table according to the body recognition device; determining the first required amount of tea according to the number of people; Water storage: when the first water storage in the teapot is less than a predetermined threshold, calculate the first injection water volume according to the first required tea volume and the first water storage volume; inject the first water injection volume into the teapot according to the water injection device. Solve the technical problems in the existing technology that it is impossible to accurately grasp the demand and preference of different users for tea, resulting in the inability to accurately add the amount of tea to the teapot, and the technical problem of low intelligence, achieving precise water injection and high intelligence technology Effect.

The invention relates to circulating control adjustors, in particular to a steady flow adjustor of a water injection well. The steady flow adjustor is constituted in the mode that a well washing valveand a fine adjusting valve are arranged in a main valve body connected to a water injection pipeline in a series mode. One end of the main valve body is connected with an inlet A of the water injection pipeline, and the other end of the main valve body is connected to an outlet B of the water injection pipeline. The well washing valve is arranged on the outlet B side of the water injection pipeline, an automatic control adjusting valve is arranged on the inlet A side of the water injection pipeline, and the fine adjusting valve is arranged between the well washing valve and the automatic control adjusting valve. One way of the inlet A of the water injection pipeline communicates to an inlet a of the well washing valve. An outlet b of the well washing valve communicates with the outlet B of the water injection pipeline. The other way of the inlet A of the water injection pipeline communicates with an inlet c of the automatic control adjusting valve. An outlet d of the automatic controladjusting valve communicates with an inlet e of the fine adjusting valve. An outlet f of the fine adjusting valve communicates with the outlet b of the well washing valve. The steady flow adjustor ofthe water injection well is reasonable in structure design, impact generated by liquid in the flowing process on valve seats and the valves can be stabilized through the design that an inlet flow wayis larger than an outlet flow way, the service lives of the valve seats and valve rods are prolonged, the water injection quantity is stabilized, and the maintenance workload is reduced.

The invention discloses a high-efficiency gastric lavage machine capable of accurately injecting water into the stomach. The bottom of the bar is slidingly connected with a trapezoidal tube, the inner wall of the water receiving block is fixedly connected with a water receiving inclined fan, the surface of the trapezoidal tube is fixedly connected with a traction spring, and the surface of the trapezoidal tube is located between the two traction springs. The side rotation is connected with a longitudinal limit rod, the opposite side of the two longitudinal limit rods is rotatably connected with a horizontal limit rod, and the opposite side of the two horizontal limit rods is rotatably connected with a water diversion plate. The high-efficiency gastric lavage machine that can accurately inject water into the stomach, through the combined use of the guide wheel and the pressure measuring wheel, can design a maximum injection volume according to the peak of vagus nerve excitation during gastric lavage, thereby reducing gastric lavage time and reducing effect on patient pain.

The invention discloses a pulsating variable precision hole water injection mechanism, and belongs to agricultural machines. A first transmission shaft is fixedly provided with a second driving chain wheel, a second transmission shaft is fixedly provided with a cam and a second driven chain wheel, and a second transmission chain is arranged on the second driving chain wheel and the second driven chain wheel in sleeving and matched modes. The transmission ratio of the second driving chain wheel to the second driven chain wheel is 1 to N, and the N is the number of water injection pipes on a hole injection water wheel assembly. A water pump and a pressure control valve or a throttling valve are assembled on a water pipe, and the two ends of an elastic telescopic control rod are in contact fit with the cam and the pressure control valve or the throttling valve respectively. A variable cross-section notch is formed in the lower side wall portion of an inner pipe of the hole injection water wheel assembly, and the sector angle of the variable cross-section notch is larger than or equal to 360 degrees / N. The pulsating water injection control structure is adopted, and thus the pulsating variable precision hole water injection mechanism has the advantages of being novel and reasonable in structure, accurate in water injection, good in water injection quality and reliable to use.

The invention discloses an automatic circulation separate zone periodical water injection method of a water injection well. More than two automatic circulation switchers are arranged in a water injection string and in a way of corresponding to each oil layer; in each automatic circulation switcher, a motor for opening or closing an eccentric water distribution valve is connected with a micro processor; the micro processors of the automatic circulation switchers are configured with opening and closing programs respectively; and the automatic circulation switchers automatically and alternately open and close according to a set time sequence to inject water into each oil layer circularly to realize periodical pulse water injection to underground oil layers. The method is simple in operation, reliable in operation and high in success rate, avoids manual control and a manual control factor, which causes errors easily, and improves water injection development effect.

The invention discloses a method of quantitatively injecting water into a fracture-cavity carbonate rock oil reservoir. A dynamic analysis is made of an oil-water well of a fracture-cavity carbonate rock oil reservoir. The method comprises the following steps: detecting the liquid production capacity Q1 in an energy drop period, detecting the density Rho of produced liquid, detecting the liquid level difference Delta H between the early stage of energy drop and the late stage of energy drop, and calculating the liquid production capacity per unit pressure drop EEI according to the formula EEI=Q1 / (Rho*g*Delta H); detecting the height M1 of a moving liquid level and the height M2 of a liquid level needing to be restored at the late stage, and calculating the pressure Delta P of the liquid level needing to be restored according to the formula Delta P=Rho*g*(M1-M2) / 1000; quantitatively injecting water into the stratum of the oil well to supplement energy, and calculating the amount of quantitatively injected water needed by the stratum according to the formula Q2=Delta P*EEI; and pushing the liquid level of the wellbore to rise through soil-water separation so as to improve the fluid supply capacity of the oil well. The long-time problem on how to realize refined water injection development of a fracture-cavity oil reservoir is solved. Through quantitative water injection, the oil increment by water injection is obviously increased.