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

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 applies to automatic control over air conditioners and provides a liquid level detection circuit used for detecting the liquid level in a liquid container and outputting detected liquid level signals to a corresponding control device for controlling water pouring or discharging. The liquid level detection circuit comprises a detection electrode and a signal processing circuit. The detection electrode comprises a common terminal arranged on the bottom of the liquid container and a plurality of detection terminals arranged from the bottom to the top of the liquid container, and safe ultra-low alternating current voltage is connected into the common terminal. The signal processing circuit is connected with the detection terminals and comprises a plurality of output terminals corresponding to the detection terminals, and the signal processing circuit is used for outputting detection waveforms serving as liquid level signals at the corresponding output terminal after receiving the information that detection signals are available at the corresponding detection terminal. Due to the fact that the safe ultra-low alternating current voltage is connected into the detection electrode, the detection electrode is not prone to electrolysis, corrosion and scales, and liquid level error judgment and control failures caused by influences of impurities in a water tank can be avoided.

The invention discloses an online intelligent regulation-and-control water nozzle device of a water injection wall. The online intelligent regulation-and-control water nozzle device comprises a driving mechanism, a transmission mechanism and a balance valve mechanism, wherein the driving mechanism, the transmission mechanism and the balance valve mechanism are successively connected from bottom to top. The driving mechanism mainly comprises a motor reducer, a shaft coupling, a thrust bearing and a trapezoidal lead screw. The transmission mechanism mainly comprises a connecting rod, a stroke switch and an outer pipe. The balance valve mechanism mainly comprises a sealed cylinder body, a piston, a balance valve core and a balance valve sleeve. The trapezoidal lead screw of the driving mechanism is connected with the connecting rod of the transmission mechanism through a screw. The connecting rod of the transmission mechanism is in sleeving mounting with the balance valve mechanism. According to the online intelligent regulation-and-control water nozzle device, online adjustment is performed on the opening of the water nozzle through driving of the motor reducer for directly changing water injection mounts of different layers; inputting / dragging of the water nozzle or connection adjustment of a measurement adjustment instrument is not required; a defect that an existing water nozzle inputting / dragging adjustment mode is affected by well inclination is settled; and requirements for complicated well conditions such as high-inclination wells and horizontal wells can be satisfied.

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 provides a universal matched water spraying device of an abrasive drill used in the department of orthopaedics. The universal matched water spraying device is an auxiliary matched water spraying device for various models of abrasive drills used in the department of orthopaedics and comprises an abrasive drill bit, a tapered sleeve, an abrasive drill handle, two water injection pipes and a fastener, wherein the abrasive drill bit is sleeved with the tapered sleeve from the tail end of the abrasive drill bit, and the tail portion of the tapered sleeve is in tight contact with the abrasive drill handle. The two water injection pipes are arranged on two sides of the abrasive drill handle, and the size-adjustable fastener on the two water injection pipes is fixed to the abrasive drill handle. The problem that an assistant needs to adopt an injector to inject water to an operative area so as to reduce the temperature of the drill bit and the temperature of an abraded bone surface in the using process of the abrasive drill, surgical operation is decreased, and related complications are avoided.

The invention discloses an oil field water flooding intelligent monitoring system. The oil field water flooding intelligent monitoring system comprises an on-site monitoring computer, one or a plurality of monitoring terminal / terminals which is / are connected with the on-site monitoring compute and a remote monitoring computer which is connected with the on-site monitoring computer through the Internet; the monitoring terminal comprises a main controller module, an RS-485 bus communication circuit module which is connected with the main controller module and a solar energy charging cell; an output end of the solar energy charging cell is connected with a cell power detection circuit module; an input end of the main controller module is connected with a keyboard circuit module, a pipeline flow meter, a water separator pressure gage and a pipe pressure gage; an output end of the main controller module is connected with a charging control circuit, a flow valve driver and an LCD (Liquid Crystal Display) display; and the charging control circuit is connected with a solar cell panel. The oil field water flooding intelligent monitoring system has the advantages of being reasonable in design, high in intelligentization degree and simple in well head wiring, achieving accurate water flooding, stable water flooding and quantitative water flooding and being good in using effect and convenient to popularize and use.

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 invention relates to an application method of an intelligent bathtub and the intelligent bathtub. The method comprises the steps that a user downloads an APP associated with the intelligent bathtub, and the APP is bound with the intelligent bathtub; the properest water temperature section and water application amount of the user are collected, and a user file is established; the user makes anappointment of the bath time through the APP, and the intelligent bathtub calls data in the user file according to identity information of the user and acquires the amount of water required to be heated and water temperature information for identification of the user; after identification of the user is completed, the application water of the intelligent bathtub is heated before the appointment time of the user. The habits of different users in application of the intelligent bathtub are recorded, corresponding operation is conducted, the intelligent bathtub is convenient to use, the time of repeated operation when the user uses the intelligent bathtub is shortened, the water injection amount and water temperature are more precise, and the situation is avoided that due to too large water injection amount, water overflows out of the bathtub, and waste is caused.

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 discloses a high-efficiency gastric lavage machine capable of accurately injecting water into a stomach. The gastric lavage machine comprises an intubation tube, wherein a conduction wheel is rotatably connected inside the intubation tube; a connecting rod is rotatably connected to the bottom of the conduction wheel; a trapezoidal tube is slidably connected to the bottom of the connecting rod; a water receiving inclined fan is fixedly connected to the inner wall of a water receiving block; traction springs are fixedly connected to the surface of the trapezoidal tube; longitudinallimiting rods are rotatably connected to the surface of the trapezoidal tube and are respectively positioned at two sides of the two traction springs; transverse limiting rods are respectively and rotatably connected to one sides, away from each other, of the two longitudinal limiting rods; and water guide plate are respectively and rotatably connected to one sides, away from each other, of the two transverse limiting rods. According to the high-efficiency gastric lavage machine capable of accurately injecting water into the stomach, through match use of the conduction wheel and a pressure measuring wheel, the maximum injection amount can be designed according to the excitation peak value of the vagus nerve during gastric lavage, so that the gastric lavage time can be reduced, and the pain of a patient is reduced.

The invention provides a remote monitoring water injection-polymer injection device and belongs to the technical field of water injection-polymer injection devices. The remote monitoring water injection-polymer injection device comprises a filter assembly, a parameter setting execution mechanism assembly, a remote monitoring data receiver, an automatic control master valve, a pressure display instrument, a sampling valve assembly, a flow setting control valve and an electromagnetic instant and accumulating flow display instrument assembly. The remote monitoring water injection-polymer injection device can realize remote control, guarantees the normal operation of oil field production when water injection wells have a wide distribution area and on-site duty and maintenance are not inconvenient, and can perform proper water injection on the water injection wells when water injection is needed. For learning the on-site water injection condition in real time, data need to be transmitted to a monitoring center in a plant, and functions of setting, controlling, real-time self-inspection, fault alarming, sub-well monitoring and the like on the water injection quantity can be performed on one single well. The remote monitoring water injection-polymer injection device realizes remote control, and monitoring on accurate water injection, quantitative water injection, stable water injection and other equipment of the oil field and realizes water injection under the unattended condition, so the labor intensity is reduced, and production safety risk and production cost are reduced.

The invention discloses a control method of a rice cooker. An outer side of the rice cooker is provided with a water tank, a water injection pipe and a water pump. The top cover of the water tank is provided with a water level distance measuring device. One end of the water injection pipe extends into the water tank, and the other end passes through the top cover of the rice cooker and extends into an inner pot of the rice cooker. The water pump is used for injecting water in the water tank into the inner pot, and the bottom of the inner pot is provided with a weight sensor. The control methodof the rice cooker comprises a step of obtaining the weight of raw rice in the inner pot and determining a water injection amount of the raw rice according to the weight, a step of controlling the distance measuring device to operate to obtain a current water level of the water tank and determining a target water level of the water tank according to the water injection amount and the current water level, a step of controlling the water pump to operate to inject the water in the water tank into the inner pot, and a step of controlling the water pump to stop operation when the water level in the water tank reaches the target water level. The invention also discloses the rice cooker and a computer-readable storage medium. According to the rice cooker disclosed in the present invention, too hard or too soft rice made by cooking can be avoided.

The invention discloses a spraying device of a dish-washing machine. The spraying device comprises a spraying arm, a water inlet pipe, an adjusting assembly and a flow guide structure, the water inletpipe is communicated with the spraying arm and provides spraying inlet water for the spraying arm; the spraying arm is provided with a spraying chamber communicated with the water inlet pipe; the adjusting assembly is used for maintaining the stable change of the pressure value in the spraying chamber at the initial stage that the washing liquid flows into the spraying chamber; and the flow guidestructure is used for guiding and buffering the flow of the washing liquid in the spraying chamber. The invention provides a spraying device of a dish washing machine. According to the one-way valveprinciple, in the initial stage of water injection in the spraying arm, it can be guaranteed that air in the spraying arm is exhausted rapidly without resistance, the influence on a water injection sensor in an original spraying arm is eliminated, and after the water level reaches a certain height, the one-way valve structure overcomes the gravity of the one-way valve structure under the action ofwater pressure and is closed and sealed; meanwhile, the influence of too fast flowing of the washing liquid on the pressure in the spraying arm is avoided, the work of the water outlet sensor is influenced, and then the normal use of the spraying arm is influenced.

The invention provides fungus stick water injection device. The fungus stick water injection device comprises a rack, wherein a stock bin drawer cover is arranged above the left portion of the rack; adisplay frame is arranged above the right portion of the rack; a plurality of stock bin combinations which are longitudinally and evenly distributed are arranged in the stock bin drawer cover; a push-pull mechanism combined with the stock bin combinations is arranged on the side wall of the left side of the rack, and the push-pull mechanism can drive the stock bin combinations to move out of thestock bin drawer cover from a cover opening in the left side of the stock bin drawer cover; water injection mechanisms matched with the stock bin combinations are arranged in the stock bin drawer cover; each stock bin combination is composed of a plurality of fungus stick stock bins which are transversely and evenly distributed, and detection weighing mechanisms matched with the fungus stick stockbins are arranged below the fungus stick stock bins; and a touch display screen connected with the detection weighing mechanisms is arranged on the side wall of the left side of the display frame. Bymeans of the fungus stick water injection device, the water injection efficiency can be improved to the maximum degree, and the water injection efficiency is in an efficient state all the time.

The invention discloses a spraying device of a dish-washing machine. The spraying device comprises a spraying arm, a water inlet pipe, an adjusting assembly and a flow guide structure, the water inletpipe is communicated with the spraying arm and provides spraying inlet water for the spraying arm; the spraying arm is provided with a spraying chamber communicated with the water inlet pipe; the adjusting assembly is arranged on the inner wall of the spraying arm to form a part of the spraying chamber, and an included angle is formed between the adjusting assembly and the flowing direction of the washing liquid in the spraying chamber; and the flow guide structure is used for guiding and buffering the flow of the washing liquid in the spraying chamber. According to the spraying device of thedish-washing machine, the principle of a one-way valve is utilized, it can be guaranteed that air in the spraying arm is rapidly discharged without resistance at the initial stage of water injectionin the spraying arm, the influence on a water injection sensor in an original spraying arm is eliminated, and after the water level reaches a certain height, the gravity of the spraying device is overcome under the action of water pressure, and closing and sealing are achieved; meanwhile, the influence of too fast flowing of the washing liquid on the pressure in the spraying arm is avoided, the work of the water outlet sensor is influenced, and then the normal use of the spraying arm is influenced.

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 invention discloses a farmland water conservancy irrigation system based on big data. The system comprises a data collection module, an evaporation verifying module, a controller, a signal generation module, an action executing module and a growth prediction module, and the data collection module is used for collecting initial adding concentration and agent condition information of an agent inan agent box and transmitting the same to the evaporation verifying module. Accurate water filling and agent filling values are provided by combining the initial adding concentration and the agent condition of the agent in each time according to double formulized analysis and analogy, in this way, reasonable utilization of the agent and balanced distribution of the agent and water volume are ensured. A prediction model can be built according to illumination condition, water quality condition and agent spraying condition to predict growth condition, and growth difference condition of farmlandblocks can be timely known by double comparative analysis to make a targeted solution.

The invention discloses a spraying device of a dish-washing machine. The spraying device comprises a spraying arm and an adjusting assembly, the spraying arm is provided with a spraying chamber; the adjusting assembly is arranged on the inner wall of the spraying arm to form a part of the spraying chamber, and an included angle is formed between the adjusting assembly and the flowing direction ofthe washing liquid in the spraying chamber; and the adjusting assembly is configured to discharge the medium in the spraying chamber from the adjusting assembly by utilizing the acting force of the washing liquid entering the spraying chamber. The invention provides a spraying device of a dish-washing machine. At the initial stage of water injection in the spraying arm, the air in the spraying armcan be quickly discharged without resistance; the influence of the inside of an original spraying arm on the water injection sensor is eliminated, a certain included angle is formed between the adjusting assembly and the flowing direction of washing liquid in the spraying cavity, it is effectively guaranteed that the adjusting assembly is kept closed under the dual effects of the buoyancy and theimpact force of the washing liquid in the working process of the spraying arm, and normal work of the spraying arm can be guaranteed.

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 spraying device of a dish-washing machine. The spraying device comprises a spraying arm, a water inlet pipe, an adjusting mechanism and a guide flow structure, the water inlet pipe is communicated with the spraying arm and provides spraying inlet water for the spraying arm; the spraying arm is provided with a first shell, a second shell and a spraying chamber which is formed by buckling the first shell and the second shell and is communicated with the water inlet pipe; the first shell and the second shell are in smooth transition connection with each other; the adjusting assembly is arranged on the inner wall of the spraying arm to form a part of the spraying chamber, and an included angle is formed between the adjusting assembly and the flowing direction of the washing liquid in the spraying chamber; and the flow guide structure is used for guiding and buffering the flow of the washing liquid in the spraying chamber. According to the spraying device of the dish-washing machine, at the initial stage of water injection in the spraying arm, it is guaranteed that air in the spraying arm is rapidly exhausted, meanwhile, washing liquid is guided, and the situation that the washing liquid enters too rapidly, and consequently the pressure in the spraying cavity is suddenly increased is avoided; a butt joint rib capable of being closed in a butt joint mode isarranged on the spraying arm, and food residue residues are stopped.

The invention discloses a spraying device of a dish-washing machine. The spraying device comprises a spraying arm, a water inlet pipe and an adjusting assembly, the water inlet pipe is communicated with the spraying arm and provides spraying inlet water for the spraying arm; the spraying arm is provided with a first shell, a second shell and a spraying chamber which is formed by buckling the firstshell and the second shell and is communicated with the water inlet pipe; the first shell and the second shell are in smooth transition connection with each other; and the adjusting assembly is usedfor maintaining the stable change of the pressure value in the spraying chamber at the initial stage that the washing liquid flows into the spraying chamber. According to the spraying device of the dish-washing machine, at the initial stage of water injection of the spraying arm, it is guaranteed that air in the spraying arm is rapidly exhausted without resistance, the influence of the interior ofan original spraying arm on a water injection sensor is eliminated, and after the water level reaches a certain height, self gravity is overcome under the action of water pressure, and the sprayingdevice is closed and sealed; a butt joint rib capable of being closed in a butt joint mode is arranged on the spraying arm, and food residues and other dirt are prevented from making contact with thewelding rib with the uneven surface to cause residues.

A drilling arm belongs to the technical field of subway construction, and in particular relates to a drilling arm. The invention provides a drilling arm with good use effect. The bottom of the drilling arm (21) of the present invention is the first stroke motor (21‑15), the upper end shaft of the first stroke motor (21‑15) has an external thread, and the upper end shaft (21‑15) of the first stroke motor (21‑15) 3) Screw through the threaded hole in the center of the first stroke chassis (21‑4), the first stroke chassis sliders (21‑5) are arranged on both sides of the first stroke chassis (21‑4), the first stroke chassis sliders (21‑4) ‑5) Placed in the first slideway (21‑2), the upper end of the first stroke chassis (21‑4) is provided with a first stroke column (21‑6), and the upper end of the first stroke column (21‑6) is connected with the first stroke column (21‑6). The first stroke top plate (21-7) is connected, the upper end of the first stroke top plate (21-7) is provided with a first motor base (21-8), and the upper end of the first motor base (21-8) is provided with a drilling motor ( 21‑9).

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 spraying device of a dish-washing machine. The spraying device comprises a spraying arm, a water inlet pipe, and an adjusting assembly, the water inlet pipe is communicated with the spraying arm and provides spraying inlet water for the spraying arm; the spraying arm is provided with a first shell, a second shell and a spraying chamber which is formed by buckling the first shell and the second shell and is communicated with the water inlet pipe; the first shell and the second shell are in smooth transition connection with each other; and the adjusting assembly is arranged on the inner wall of the spraying arm to form a part of the spraying chamber, and an included angle is formed between the adjusting assembly and the flowing direction of the washing liquid in thespraying chamber. The invention provides a spraying device of a dish-washing machine, which is characterized in that air in a spraying arm is quickly discharged without resistance at the initial stage of water injection of the spraying arm, the influence on a water injection sensor is eliminated, and after the water level reaches a certain height, the gravity of the spraying device is overcome under the action of water pressure, and the spraying device is closed and sealed; a butt joint rib capable of being closed in a butt joint mode is arranged on the spraying arm, and food residues and other dirt are prevented from making contact with the welding rib with the uneven surface to cause residues.

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.

The invention discloses an online intelligent regulation-and-control water nozzle device of a water injection wall. The online intelligent regulation-and-control water nozzle device comprises a driving mechanism, a transmission mechanism and a balance valve mechanism, wherein the driving mechanism, the transmission mechanism and the balance valve mechanism are successively connected from bottom to top. The driving mechanism mainly comprises a motor reducer, a shaft coupling, a thrust bearing and a trapezoidal lead screw. The transmission mechanism mainly comprises a connecting rod, a stroke switch and an outer pipe. The balance valve mechanism mainly comprises a sealed cylinder body, a piston, a balance valve core and a balance valve sleeve. The trapezoidal lead screw of the driving mechanism is connected with the connecting rod of the transmission mechanism through a screw. The connecting rod of the transmission mechanism is in sleeving mounting with the balance valve mechanism. According to the online intelligent regulation-and-control water nozzle device, online adjustment is performed on the opening of the water nozzle through driving of the motor reducer for directly changing water injection mounts of different layers; inputting / dragging of the water nozzle or connection adjustment of a measurement adjustment instrument is not required; a defect that an existing water nozzle inputting / dragging adjustment mode is affected by well inclination is settled; and requirements for complicated well conditions such as high-inclination wells and horizontal wells can be satisfied.

The invention discloses a spraying device of a dish-washing machine. The spraying device comprises a spraying arm, a water inlet pipe, an adjusting assembly and a flow guide structure, the water inletpipe is communicated with the spraying arm and provides spraying inlet water for the spraying arm; the spraying arm is provided with a first shell, a second shell and a spraying chamber which is formed by buckling the first shell and the second shell and is communicated with the water inlet pipe; the first shell and the second shell are in smooth transition connection with each other; the adjusting assembly is used for maintaining the stable change of the pressure value in the spraying chamber at the initial stage that the washing liquid flows into the spraying chamber; and the flow guide structure is used for guiding and buffering the flow of the washing liquid in the spraying chamber. According to the spraying device of the dish-washing machine, it is guaranteed that air in the sprayingarm is rapidly discharged without resistance at the initial stage of water injection in the spraying arm; a butt joint rib capable of being closed in a butt joint mode is arranged on the spraying arm, so that residues of dirt such as food residues are blocked; and a flow guide structure is arranged in the spraying arm, so that the washing liquid can be well guided to flow in the spraying arm.