58results about How to "Real-time pressure monitoring" patented technology

The invention relates to an automatic condensing fin cleaning device and an air conditioner with the cleaning device. The cleaning device is arranged on an air conditioner outer machine box body. The air conditioner outer machine box body is provided with a fin heat exchanger and a draught fan and comprises a liquid storage device, an electromagnetic valve, a spray nozzle device and a control box. The liquid storage device is arranged on the air conditioner outer machine box body and connected with the electromagnetic valve through a pipe. The electromagnetic valve is connected with the spray nozzle device through a pipe. The spray nozzle device is arranged on the fin heat exchanger. The electromagnetic valve is connected with the control box through a circuit. The automatic condensing fin cleaning device and the air conditioner with the cleaning device have the advantages that cleaning liquid is injected into the liquid storage device, the control box controls the electromagnetic valve to be opened, and the cleaning liquid in the liquid storage device is evenly sprayed onto the fin heat exchanger through the spray nozzle device, so that the purpose of cleaning fins is achieved; the problem that time and labor are consumed in the manual cleaning process is solved, automatic cleaning of the fins of a condenser is achieved, and the manual maintenance cost of a unit is lowered.

A suction anchor rod device comprises a hollow columnar anchor rod. A bottom opening of the anchor rod is sealed, a top opening of the anchor rod is provided with a sealing cover plate, and the sealing cover plate and the anchor rod are detachably connected. The section, close to the bottom opening, of the anchor rod is defined as a bottom section, the section, close to the top opening, of the anchor rod is defined as a top section, a plurality of sieve holes are distributed in the side wall of the bottom section of the anchor rod, and the sieve holes communicate with an inner cavity of the anchor rod. A lifting disk is arranged in the anchor rod, the lifting disk is arranged in the anchor rod in the manner that the lifting disk can move up and down in the axial direction of the anchor rod through a lifting device, the lifting disk divides the inner cavity of the anchor rod into an upper cavity and a lower cavity, the cavity containing the top opening is defined as the upper cavity, and the cavity containing the bottom opening is defined as the lower cavity. The suction anchor rod device further comprises a pressure testing device used for testing the air pressure in the lower cavity and a pressure adjusting device used for adjusting the air pressure in the lower cavity. The suction anchor rod device utilizes the principle of effective stress, under the situation that the total stress is certain, the effective stress is improved by reducing the excess pore pressure, the anchor rod side friction is increased, and the overall stability and safety are improved.

The invention relates to an automatic cleaning net changing, washing and drying device adopting real-time embedded control and belongs to the technical field of real-time control. The automatic cleaning net changing, washing and drying device comprises a control module, an automatic net changing mechanism, a jet-propelled type dust removal mechanism, a water spray type dust removal mechanism, a dryer, a sewage treatment device and a water storage pool. The jet-propelled type dust removal mechanism is connected with the water spray type dust removal mechanism, the water spray type dust removal mechanism is connected with the dryer, and the sewage treatment device is connected with the jet-propelled type dust removal mechanism, the water spray type dust removal mechanism and the water storage pool, the water storage pool is connected with the water spray type dust removal mechanism, and the automatic net changing mechanism is connected with the jet-propelled type dust removal mechanism, the water spray type dust removal mechanism and the dryer. The automatic cleaning net changing, washing and drying device is simple in structure, low in cost and convenient and quick to operate, the pressure change of a cleaning net can be detected through a differential pressure transducer, the enrichment degree of dust on the cleaning net is analyzed through a single-chip microcomputer module, the cleaning net is automatically changed, washed, dried and collected, cleaning sewage is treated and recycled, and the effects of energy saving and environment friendliness are achieved.

The invention provides a method of controlling the boiling heat transfer by the acoustic cavitation and titanium dioxide nano-particles, and relates to the heat exchange technology. The method includes the steps of adding the titanium dioxide nano-particles to a liquid in a testing case, and generating an acoustic cavitation field to the liquid so as to control the boiling heat transfer to intensify or weaken. The method of the invention has two elements, i.e., an adjustable-frequency ultrasonic transducer capable of generating cavitation bubble bunches and particles with the size in the nanometer level. A device for realizing the method of the invention comprises the testing case, a heat transfer test surface, electric heaters, the ultrasonic transducer, a supersonic generator, an observation window, a condenser, a thermocouple, a pressure gauge and the nano-particles. The method can carry out intensifying and weakening control for single-phase convection heat transfer of the heat transfer surface and the nucleate boiling heat transfer, with high heat transfer intensification rate and high cooling heat flow density; and the method of the invention is an active complex heat transfer intensification method.

The invention provides a cooling structure and method of a magnetic suspension refrigeration compressor. The cooling structure comprises a pressure sensor Pa and temperature sensors Ta, T1, T2 and T3;a back-end sealing cavity is arranged in the back end of a motor casing, and the pressure sensor Pa and the temperature sensor Ta are arranged in the back-end sealing cavity; and the temperature sensor T1 is arranged on a stator back-end winding in the motor casing, the temperature sensor T2 is arranged on a stator core in the motor casing, and the temperature sensor T3 is arranged on a stator front-end winding in the motor casing. According to the cooling structure and method of the magnetic suspension refrigeration compressor, the internal temperature and pressure of the motor can be monitored in real time, cooling can be implemented at any time, it is ensured that a refrigerant in the motor cavity is in a saturated or slightly overheat state, and the problem that the operational reliability of the motor is influenced by that the rotor heat radiation condition is unsatisfied and the rotor temperature is too high and further a permanent magnet is demagnetized.

The invention discloses a tire pressure monitoring and alarming device. An air inlet channel communicated with a reference cavity is formed in the bottom of a reference cavity assembly; an outlet section of a bottom nut is provided with an air valve sealing ring for sealing an opening part of an air valve core; an air valve core jack is positioned between the bottom of the reference cavity assembly and the air valve sealing ring; a step at the bottom end of the air valve core jack is inserted into the air valve sealing ring; a main sealing ring is arranged between the top end of the air valve core jack and the reference cavity assembly and corresponds to the lower side of the air inlet channel; the main sealing ring is used for isolating a channel from the inner side of the air valve core jack to the air inlet channel from the outer side of the air valve core jack in a sealing manner; a compressed spring is mounted between the air valve core jack and the reference cavity assembly; the outer wall of the air valve core jack is sealed with the bottom nut through a self-detection sealing ring on the bottom nut, and a space above an elastic conductive sheet is sealed to form an independent monitoring cavity; and the wall face of the air valve core jack is further provided with a lateral air channel; and the lateral air channel is close to the self-detection sealing ring and can move to the upper side of the self-detection sealing ring from the lower side of the self-detection sealing ring to be communicated with the monitoring cavity.

The invention discloses an active tunnel prevention and control method based on construction of a guide tunnel. The method is based on the construction of the guide tunnel and comprises the steps of loosening rock in a layered fracture zone formed by excavation of the guide tunnel and filling the rock with a flexible material to improve the internal loosening degree of the rock in order to improvethe stress elimination capability of the layered fracture zone, greatly weaken or block the ground stress and the seismic wave strength, and protect the safety and stability of a main tunnel. A pressure box in a partition fracture zone can monitor the pressure in the partition fracture zone in real time, and when the pressure is identical to the ground stress transmitted from the partition fracture zone, it is indicated that the internal stress of the partition fracture zone is saturated; at the moment, the fractured rock in the partition fracture zone is crushed and sucked again and filled with the flexible material, the interior of the partition fracture zone is kept soft all the time, and the partition fracture zone can play a role of forming a stress barrier for a long time, so that the safety and stability of the main tunnel is guaranteed for a long time.

The invention provides a fault gas production pressure simulation test device for oil-less equipment. The simulation test device comprises a sealing body and an oil conservator. The oil conservator isarranged above the sealing body, the oil conservator is communicated with the sealing body, the sealing body is used for simulating oil-less equipment, and the oil conservator is used for storing oiland supplementing oil to the sealing body; a plurality of gas injection holes are formed in the sealing body and used for being connected with gas injection equipment to inject fault simulation gas into the sealing body; a pressure sensor is further arranged in the sealing body and used for detecting pressure in the sealing body so as to detect pressure changes in the sealing body at different gas injection rates under different fault simulation gas. According to the invention, pressure simulation is carried out on fault gas production of oil-less equipment; the internal pressure condition ofthe equipment is monitored in real time, the pressure value detected by a simulation experiment is obtained by simulating gas with different fault characteristics, the change relationship between thepressure and the time is analyzed, and the threshold value of fault early warning is determined and further serves as the reference value for fault alarm of the oil-less equipment.

The invention discloses a novel rotary type compressor. The novel rotary type compressor structurally comprises a working main body support frame, an air cylinder handle, heat dissipation holes, a working main body protective outer shell, a sealing door handle, a product nameplate, a safety sealing door, a pressure gage, a working display screen, a switch button, an air outlet, a compression air cylinder, air cylinder support feet and an air cylinder anti-explosion protection device. The air cylinder anti-explosion protection device is composed of a pressure sensor, a power supply wire, a protective housing, a pressure display screen and power supply indicator lamps. The protective housing is welded to the front face of the compression air cylinder. The novel rotary type compressor is provided with the air cylinder anti-explosion protection device, and therefore, when the rotary type compressor is used, the pressure condition inside the compression air cylinder can be monitored in realtime, and work of the compressor can be stopped automatically when the pressure exceeds the nominal value; the compression air cylinder is prevented from exploding; personal safety of an operator isguaranteed; and practicability of the novel rotary type compressor is improved.

The invention relates to the technical field of motor vehicle protection, in particular to a high overpressure type collective protection system which comprises a gas filtration ventilation device, anoverpressure measurement and control device, a high-pressure inflation device and a control center. The gas filtration ventilation device comprises a filtering absorber, an air volume measuring device and a speed regulating fan. The input end of the control center is connected with an output port of the air volume measuring device, the control end of the control center is connected with a motor of the speed regulating fan, the overpressure measurement and control device comprises an overpressure measurement component and an overpressure control component, the input end of the control center is connected with an output port of the overpressure measurement component, the control end of the control center is connected with an electric control valve, the high-pressure inflation device comprises an inflation pump, an inflation rubber strip, an inflation adjusting electromagnetic valve and a differential pressure transmitter, the inflation rubber strip is clamped in a vehicle door sealing clamping groove, an output port of the differential pressure transmitter is connected with the input end of the control center, and the control end of the control center is connected with the inflationadjusting electromagnetic valve. The system can establish in-vehicle ultra-high pressure protection and realize automatic control.

The invention belongs to the technical field of engineering machinery, and relates to a basket disk weighing system and an aerial work platform with the same. The basket disk weighing system comprisesa weighing sensor and a basket assembly arranged on the weighing sensor in a pressing mode. The basket assembly comprises a basket and a basket bracket which are fixedly connected. The weighing sensor comprises a sensor outer ring and a sensor inner ring which are fixedly connected. The basket bracket is arranged on the weighting sensor in a pressing mode and fixedly connected with the sensor outer ring, and the sensor inner ring is connected to a driving arm assembly. The aerial work platform is provided with the weighting system to monitor the pressure borne by the basket in real time, overload is prevented, and safety of working high above the ground is improved; and the weighting system can solve the measurement problem of the real time load of the basket by using only one sensor, andhigh measuring veracity is achieved.

The invention discloses an offshore wind plant steel pipe pile foundation batch floating transportation system and a working method thereof, and belongs to the technical field of offshore wind power construction transportation. The system comprises an air bag device, a steel pipe pile fixing device, an inflation device, a floating transportation dragging cable, an inflation pipe and a carrier. The multiple steel pipe piles are fixed to the steel pipe pile fixing devices, and each steel pipe pile is filled with the corresponding air bag device. The two ends of the floating transportation dragging cable are connected with the steel pipe pile fixing device and the carrier correspondingly. One end of the inflation tube is connected with the inflation device, and the other end of the inflation tube is connected with each air bag device. The system is reasonable in design and simple in construction, does not depend on special ship machine equipment and tools, reduces the transportation difficulty and cost, and has a good application prospect.

The invention provides a change-over switch. The change-over switch comprises an installation frame and a driving gear, a left driven gear, a right driven gear, a left shifting member and a right shifting member separately arranged on the installation frame, the left side and the right side of the driving gear are respectively connected with the left driven gear and the right driven gear in an engaged manner, the left shifting member is connected to the left side of the left driven gear in an engaged manner, the right shifting member is connected with the right side of the right driven gear inan engaged manner, the outsides of the left shifting member and the right shifting member are respectively provided with a group of circuit breakers, the left shifting member and the right shifting member are driven by the driving gear to alternately move up and down to realize switching of switch-on and switch-off of the two groups of circuit breakers, the left shifting member and the right shifting member are connected through a locking mechanism, and the locking mechanism can prevent simultaneous switch-on of the left shifting member and the right shifting member. According to the change-over switch, the structure is simple, the locking mechanism is provided, and the condition of simultaneous switch-on of the circuit breakers at two sides can be effectively prevented.

The invention relates to a gearbox oil filler. The gearbox oil filler comprises an oil storage tank and gas injection equipment used for injecting gas into the oil storage tank, an oil filling port which is through inside and outside is formed in the top of the oil storage tank, and the oil storage tank is further provided with an oil outlet which is through inside and outside. The gas injection equipment communicates with the top of the oil storage tank through a pipeline. The gearbox oil filler has the advantages that the structure is simple, operation is simple and convenient, the oil injection efficiency is greatly improved, manpower is saved, and cost is reduced.

The invention relates to a compressor for preventing jugular phlebectopia of peripherally inserted central catheter (PICC). The compressor comprises a compression column I, a compression column II anda compression column III, wherein the first end of the compression column I is fixedly connected with the first end of the compression column II; the first end of the compression column III is fixedly connected with the second end of the compression column II, and the three compression columns are mutually connected to form a circular arc or elliptical arc structure. The compressor also compriseelastic belts, wherein the elastic belts comprise a first elastic belt and a second elastic belt; the first elastic belt is fixedly connected or detachably connected with the free end of the compression column I, the second elastic belt is fixedly connected or detachably connected with the free end of the compression column III, the first elastic belt is provided with elastic belt holes, and the second elastic belt is provided with a button. When the device is used, another PICC specialist nurse or a nurse with ultrasonic capability is not required for cooperation, so that waste of labor costis avoided.

The invention relates to the field of electromagnetic brake, in particular to an electromagnet used for an electromagnetic brake. The electromagnet comprises a mandrel and a control circuit, a threadshaft is mounted at one end of the mandrel, a pressing sleeve is mounted on one side of the mandrel, one side of the pressing sleeve is in threaded connection with a thread wire, one side of the mandrel is provided with an armature, the pressing sleeve is mounted on one side of the armature through the thread wire, a yoke is arranged on one side of the armature, a coil is mounted in the yoke, insulation paint is arranged between the yoke and the coil, a disc spring is mounted outside the mandrel, a protection shell is mounted outside the disc spring, a pressure sensor is mounted on one side ofthe disc spring, a sleeve rod is arranged on the other end of the mandrel, the outer wall of the sleeve rod is in threaded connection with a locking nut, the disc spring comprises a disc spring leverarm backrest side and a disc spring opening side, and the electromagnet has the beneficial effects that the power of a transformer can be reduced, the volume and the weight of a control box can be reduced, an overcurrent relay switches a high-voltage circuit into a small-voltage circuit to be kept, and temperature rise of the electromagnet coil can be reduced.

The invention provides an expansion-prevention plastic chemical barrel. The expansion-prevention plastic chemical barrel is characterized by comprising a barrel cover and a barrel body; a pressure release hole is formed in the top of the barrel body; a pressure release valve is arranged on the pressure release hole; the lower portion of the barrel body is provided with a pressure gauge and a warning display lamp; a control device is arranged on the surface of the barrel body; and the control device is connected with the pressure gauge, the warning display lamp and the pressure release valve through circuits. The pressure gauge is arranged on the expansion-prevention plastic chemical barrel and can monitor the pressure in the chemical barrel in real time, once the pressure in the chemical barrel exceeds a warning value, the control device triggers a warning, the warning display lamp flickers, meanwhile, the pressure release valve is opened to release pressure, the pressure in the chemical barrel can reach a normal value, the phenomenon that the chemical barrel expands or even explodes along with rising of the temperature of the external environment in the chemical raw material storage and transportation process is avoided, and potential safety hazards are eliminated; and the inner wall of the barrel body is provided with an anticorrosive coating so that the barrel body can be protected against corrosion of chemical raw materials in the barrel, and the service life of the chemical barrel is further prolonged.

The invention provides a suction device with a real-time gas pressure detection function. The device comprises a suction loop part and a singlechip control part and structurally comprises a urine/stool treating cavity, a recycling barrel, a solenoid valve, an energy storage tank, a pressure sensor, a filter, a gas pump, a muffler and the singlechip control part of an intelligent urine/stool treating device, wherein the urine/stool treating cavity is connected with the recycling barrel by virtue of a water pipe; the recycling barrel, the solenoid valve, the energy storage tank, the filter, the gas pump and the muffler are connected by virtue of gas pipes according to a gas inlet/outlet mode; the pressure sensor is connected with the internal thread of the energy storage tank by virtue of an external thread; and the pressure sensor is connected with the singlechip control part by virtue of a lead. The device has a concise structure and higher degree of automation, is convenient to use, can be used for realizing the suction of the flushing water in the water pipe between the urine/stool treating cavity and the recycling barrel in the intelligent urine/stool treating device, has a better suction effect and has a certain fault self-rescue function.

The invention provides a multifunctional integrated oxygen sensor, which comprises a straight through pipe, two ultrasonic probes and a control module, wherein the ultrasonic probes are arranged on the straight through pipe, and are electrically connected with the control module, the control module comprises a main control circuit, a pressure acquisition module, a temperature and humidity detection module, a micro-pressure detection module and a wireless Bluetooth data transmission module, the main control circuit is electrically connected with the pressure acquisition module, the temperature and humidity detection module, the micro-pressure detection module and the wireless Bluetooth data transmission module, and the main control circuit, the pressure acquisition module, the temperature and humidity detection module, the micro-pressure detection module and the wireless Bluetooth data transmission module are integrated on the same circuit board. The multifunctional integrated oxygen sensor has the functions of detecting the oxygen concentration, the oxygen concentration and the temperature of the oxygen generator, detecting the pressure, the temperature and the humidity of the oxygen storage tank, detecting the pressure of an air outlet and the like at the same time, multiple functions are integrated through the multifunctional integrated oxygen sensor, and the manufacturing cost is reduced.

The invention discloses a reaction kettle component for hydrate generation and sample preparation. The reaction kettle component comprises a reaction kettle, a kettle cover, a pressure and temperaturemonitoring device and a frequency-adjustable rotating motor, wherein one side of the reaction kettle is provided with a gas inlet pipeline and a gas inlet valve, the other side of the reaction kettleis provided with a liquid inlet pipeline and a liquid inlet valve, small holes are densely distributed in the pipe wall of the gas inlet pipeline in the reaction kettle, nano titanium composite plating layers are plated on the inner and outer side surfaces of the reaction kettle, the pressure and temperature monitoring device comprises a pressure monitoring instrument and a temperature monitoringinstrument, the frequency-adjustable rotating motor comprises a positive and negative rotating motor capable of rotating positively and negatively and a motor frequency modulator connected with the positive and negative rotating motor, the reaction kettle is placed on a stainless steel bracket, the whole reaction kettle component is placed in a constant-temperature air bath with a programmable temperature control function, and a vacuum instrument is arranged on the reaction kettle. The reaction kettle component can effectively improve the reaction rate of the hydrate, and ensures the uniformity and compactness of the generated hydrate sample at the same time; and the reaction rate is high, the sample surface is smooth and the sample distribution is uniform.

The invention provides a pair of sitting posture correcting intelligent underpants having a low voltage alarm function. The sitting posture correcting intelligent underpants include a circuit portion;the circuit portion includes a pressure sensor (3), a signal pretreatment circuit, a microprocessor, a sitting posture voice alarm, a storage device, a power supply, and a lower voltage alarm module.According to the sitting posture correcting intelligent underpants, the pressure sensor can monitor the pressure condition of a waist of a user, and the pressure condition can reflect a real-time sitting posture situation of the user; the sitting posture voice alarm can perform voice alarm, and can remind the user of correcting the sitting posture; the sitting posture is monitored at anytime andanywhere without using an additional wearing device; and the sitting posture correcting intelligent underpants have the low voltage alarm function, is easy to use, is high in practicability, can remind the user of charging or changing a battery timely.