38results about How to "Achieve pressure regulation" patented technology

The invention provides a production device and a production method for soft, clean and pure yarns. An upper rubber roll in each drawing roller pair is connected with a pressurizing assembly through aconnecting vertical rod which can be stretched or shortened, so as to realize pressure adjustment between the upper rubber roll and a lower roller in a spinning process through stretching or shortening control of the connecting vertical rod, and thus pressure adjustment of fiber strands between the upper rubber roll and the lower roller in a spinning process is realized. Thus, selection of fiberswhich can slide mutually in the fiber strands is realized. Therefore, on one hand, gradual change control of yarn density of spun yarns is realized, and on the other hand, through controlling differences of yarn density in the fiber strands, a process of few fibers in low yarn density wrapping multi-fibers in high yarn density in a twisting and yarn forming process is realized, so that integratedstructure control of inner-loose and outer-tight of yarns is realized, and development of yarns which are smooth and clean on surfaces and soft is realized.

The invention relates to the technical field of gas insulating materials of electrical equipment, in particular to a charging system and method for insulating mixed gas. The charging system comprises a mixed gas charging device and a temperature and pressure monitoring device. The mixed gas charging device comprises an SF6 charging gas circuit, a non-SF6 charging gas circuit, a test cavity pipeline, a vacuum bottle pipeline and a vacuum pump pipeline. The temperature and pressure monitoring device comprises a pressure gauge which is provided with an intelligent remote transmission component. The charging system can carry out charging, pressure adjustment and recovery treatment of mixed gas which has different pressure and different SF6 ratios and can also monitor the pressure, temperature and density of the mixed gas.

The invention discloses a hydraulic system, which comprises a main proportional pressure valve, a first proportional pressure valve, a second proportional pressure valve and a proportional flow valve, wherein the first proportional pressure valve is used for controlling the movement of a piston of a first clutch control oil cylinder which is connected in series with the first proportional pressure valve together with the main proportional pressure valve; the second proportional pressure valve is used for controlling the movement of a piston of a second clutch control oil cylinder which is connected in series with the second proportional pressure valve together with the main proportional pressure valve; and the proportional flow valve is used for controlling the movement of a piston of a synchronizer control oil cylinder which is connected in series with the proportional flow valve together with the main proportional pressure valve. A control unit of the hydraulic system is used for controlling each proportional pressure valve according to information from each pressure sensor for further controlling the on-off states of a first clutch and a second clutch and realizing accurate control over the position of a synchronizer according to information from the pressure sensors and a position sensor.

The invention relates to an energy source and a dynamical power system, in particular to a static pressure rotative machine with no need of external energy sources and external dynamical power. The static pressure rotative machine mainly comprises static pressure propulsion units (1) and a shaft (2), and is characterized in that the two or more than two static pressure propulsion units are symmetrically distributed around the shaft; and machine rotary motion can be realized without any external energy sources and external dynamical power.

The invention discloses a adjusting method of an oxygen pressure adjustment apparatus for an electric furnace. The oxygen pressure adjustment apparatus is characterized in that an oxygen gas total pipe is connected to a burning nozzle and an oxygen gun respectively through a main pipeline and a branch, the main pipeline is provided with a main pipeline shut-off valve and a main pipeline adjustment valve, and the branch is provided with a branch adjustment valve. With application of the structure, the oxygen pressure adjustment apparatus has the following advantages that: pressure adjustment of the electric furnace oxygen gas total pipeline can be achieved with a low cost, the change on the existing pipeline is less, and normal electric furnace use is not affected.

The invention discloses a multiplex gear pump energy-saving testing bench suitable for performance testing and reliability checking on various multiplex gear pumps, and relates to a testing bench. The multiplex gear pump energy-saving testing bench comprises a tested multiplex gear pump, loading elements, a synchromesh gearbox, power compensating components, testing elements, self-circulation filtering cooling devices and an oil tank. According to the multiplex gear pump energy-saving testing bench, the synchromesh gearbox is mechanically connected with loading hydraulic motors through the tested multiplex gear pump, the loading hydraulic motors are power and loads of the tested multiplex gear pump at the same time, power compensation is achieved through volume compensating pumps and a mechanical compensating motor, and power recovery is overall achieved. The multiplex gear pump energy-saving testing bench is simple in structure, good in power recovery effect and high in use reliability and practicability.

The invention discloses a balancing valve and a fluid balancing method. The balancing valve comprises a middle valve body, a left valve body and a right valve body, wherein the left valve body and theright valve body are arranged on two sides of the middle valve body, the left valve body and the right valve body are separately provided with a first fluid input control device and a second fluid input control device. According to the balancing valve and the fluid balancing method, the pressure gas is adopted to balance the gas pressure on both sides, and the pressure adjustment of the output gas can be realized by adjusting a pressure value of the pressure gas, so that the precision is high and the use is flexible.

The invention relates to an electrohydraulic inverse proportion pressure reducing valve and belongs to the field of hydraulic control. The proportion pressure reducing valve comprises a valve body, avalve element, a cylinder plug, a first resetting spring, a second resetting spring, a proportion electromagnet and a baffle. A stepped valve cavity is adopted, when the electromagnet does not work, the work pressure output by the pressure reducing valve is maximum, along with increasing of current, the electromagnetic pushing force output by the electromagnet increases, the work pressure of the pressure reducing valve is gradually reduced, the hydraulic force in a work cavity of the valve element is balanced with the spring force and the electromagnetic force, and pressure adjusting of a hydraulic oil way is achieved. The structure of the pressure reducing valve is greatly simplified, and the production cost is reduced. The inverse proportion pressure reducing valve can improve the stability and the control precision of work of the system.

The invention relates to integrated gas supply equipment for LNG. The integrated gas supply equipment for the LNG comprises an LNG storage tank, wherein the bottom of the LNG storage tank is connected with a first carburetor, a low-temperature boost regulating valve and a four-way valve through pipelines in sequence; the four-way valve is connected with the top of the LNG storage tank through a pipeline; the bottom of the LNG storage tank is also connected with a low-temperature buck regulating valve through a pipeline; the other end of the low-temperature buck regulating valve is connected with the four-way valve through a pipeline; the pipeline used for communicating the low-temperature buck regulating valve and the LNG storage tank is also connected with a second carburetor; a gas outlet end of the second carburetor is connected with a user terminal through a pipeline. According to the integrated gas supply equipment for the LNG, the pressure regulation in a tank body is realized so that the tank body is kept within a set pressure range all the time; a supply effect is guaranteed; potential safety hazards are eliminated; moreover, the integrated gas supply equipment is simple in structure and convenient to mount.

The invention discloses a damping motor. The damping motor comprises a motor body, a base and a plurality of damping devices; the damping devices are connected with the base and the motor body; each damping device comprises a pneumatic shock absorber used for vertical damping, a spring shock absorber used for assisting vertical damping and a horizontal shock absorber used for horizontal damping; the pneumatic shock absorber comprises an outer cylinder and a pneumatic rod moving relative to the outer cylinder; an air cavity is formed between the pneumatic rod and the outer cylinder; an air valve for introducing compressed air is arranged at the upper end of the outer cylinder; the spring shock absorber comprises a vertical shock absorption spring and a pressure adjusting flange plate used for adjusting the pre-tightening pressure of the vertical shock absorption spring; the horizontal shock absorber comprises a sliding table, a sliding base, a plurality of rolling balls and four horizontal shock absorption assemblies; and the four horizontal damping assemblies are arranged in pairs on the two sides of the sliding table. The damping motor has the beneficial effects that: the structure is simple, the multiple damping devices can be independently adjusted, buffering and damping can be conducted in multiple directions, and the damping effect is good.

The invention relates to a multifunctional special shoe for a diabetic patient. The multifunctional special shoe comprises a shoe sole and a shoe lace, wherein the shoe sole comprises a supporting layer and a pressure adjusting layer stacked at the bottom of the supporting layer; the pressure adjusting layer is one or more splicing layers composed of a plurality of splicing blocks; the adjacent splicing layers and the bottommost splicing layer and the supporting layer are fixed through detachable structures; the shoe lace comprises a plurality of groups of connecting bands; any connecting bandis provided with a plug pin connected with the shoe sole; insertion holes for the plug pins to be inserted and fixed are formed in the outer side of the edge of the supporting layer; a plurality of insertion holes are continuously formed in the same horizontal plane at intervals; and the same plug pin corresponds to multiple insertion holes. The multifunctional special shoe further comprises a heat preservation layer detachably fixed to the periphery of the shoe sole. By adopting the innovative design, the hardness of the shoe sole can be adjusted only through simple dismounting, pressure adjustment of the instep and the vamp is achieved, the instep wound adaptability is effectively improved, the instep wound is protected, accordingly the wearing comfort is improved, and the effects of preventing diabetic foot and promoting rehabilitation of the diabetic foot are played.

The invention provides a production device and a production method for soft, clean and pure yarns. An upper rubber roll in each drawing roller pair is connected with a pressurizing assembly through aconnecting vertical rod which can be stretched or shortened, so as to realize pressure adjustment between the upper rubber roll and a lower roller in a spinning process through stretching or shortening control of the connecting vertical rod, and thus pressure adjustment of fiber strands between the upper rubber roll and the lower roller in a spinning process is realized. Thus, selection of fiberswhich can slide mutually in the fiber strands is realized. Therefore, on one hand, gradual change control of yarn density of spun yarns is realized, and on the other hand, through controlling differences of yarn density in the fiber strands, a process of few fibers in low yarn density wrapping multi-fibers in high yarn density in a twisting and yarn forming process is realized, so that integratedstructure control of inner-loose and outer-tight of yarns is realized, and development of yarns which are smooth and clean on surfaces and soft is realized.

The invention relates to a CCD (Charge Coupled Device) positioning and correcting die-cutting machine which comprises a die-cutting main machine used in a die-cutting process, a power case used for providing power for the die-cutting machine, a feeding assembly used for feeding materials, a pulling assembly used for discharging the materials and providing material transmission power, and a visual positioning mechanism used for positioning the materials in the die-cutting main machine, The die-cutting main machine is stably placed on the horizontal ground, the power case is installed on the rear side face of the die-cutting main machine, the feeding assembly and the material pulling assembly are oppositely installed on the two sides of the die-cutting main machine, and the visual positioning mechanism is installed over the die-cutting main machine. According to the die-cutting machine, the two sets of X-axis driving mechanisms and the two sets of Y-axis driving mechanisms which are independently controlled are utilized, each camera is rapidly, conveniently and independently adjusted to any position in the horizontal direction, in the adjusting process, shaking of the CCD camera is small, and the positioning precision is higher.

The invention relates to the technical field of plastic film production, in particular to a cutting device for plastic film processing. The cutting device for plastic film processing comprises a turnover frame, a first bearing block, a second bearing block, a flattening roller, a transition roller, a rodless air cylinder assembly, a cutting assembly and a cutting control system. The first bearingblock is slidably connected to the turnover frame through a sliding block and sliding groove structure. Two ends of a spring are fixed to the first bearing block and the second bearing block correspondingly, and a first motor is fixed to the outer side of the second bearing block at one end. The cutting assembly comprises a lead screw transmission mechanism, a guide rod air cylinder mechanism anda cutting tool mechanism. The cutting control system is connected with and controls the turnover frame, the rodless air cylinder assembly, the lead screw transmission mechanism, the guide rod air cylinder mechanism and the first motor respectively. According to the cutting device for plastic film processing, during cutting, the film tension force is high, the cutting speed is high, the tool cutting edge using efficiency is high, and a flattening function is fulfilled.

The invention relates to a CCD positioning deviation correcting die-cutting machine, which includes a die-cutting host used in the die-cutting process, a power chassis used to provide power for the die-cutting machine, a feeding assembly used for material feeding, and a A material pulling assembly that provides power for material transmission and a visual positioning mechanism for locating the position of the material in the die-cutting host. The die-cutting host is placed stably on a level ground. The material component and the material pulling component are relatively installed on both sides of the die-cutting main machine, and the visual positioning mechanism is installed directly above the die-cutting main machine. In this die-cutting machine, two sets of X-axis drive mechanisms and two sets of independently controlled X-axis drive mechanisms are used. The Y-axis drive mechanism can quickly and conveniently adjust the arbitrary position of each camera individually in the horizontal direction. During the adjustment process, the CCD camera shakes less and the positioning accuracy is higher.

The invention discloses a quick release valve. The quick release valve is applied to a plateau pressurized oxygen cabin vehicle and is used for adjusting the pressure in the pressurized oxygen cabin vehicle; the quick release valve comprises a valve element and a valve seat, an air inlet and an air outlet are formed in the valve element, the valve element is movably connected into the valve seat in a penetrating mode, and the air inlet is sealed through the valve seat; the valve element is moved, so that the valve element moves on the valve seat, the air inlet is exposed, air in the pressurized oxygen cabin vehicle enters from the air inlet and enters the outside of the pressurized oxygen cabin vehicle through the air outlet, and pressure adjustment in the pressurized oxygen cabin vehicle is achieved. The quick release valve is applied to a plateau pressurized oxygen cabin van, and pressure adjustment of the plateau pressurized oxygen cabin on the van is achieved through pushing and pulling of a handle on the quick release valve.

The invention relates to a fixed outlet temperature and pressure type flooded heater. A baffle is welded in a heater housing, so that a fluid entering the heater can be uniformly heated; an electric heating wire is sleeved with a molecular sieve, so that residues of the electric heating wire during burst due to local high temperature are prevented from entering a heating working medium to influence system running; and the electric heating wire is in threaded connection with the heater housing by adopting a flange, so that electric heating wires of different power can be conveniently replaced. When the heating working medium flows through the heater, the electric heating wire is completely dipped in the heating working medium to completely convert electric energy into fluid internal energy, and an electronic expansion value is used for adjusting the pressure of the fluid at an outlet of the heater to reach a required set value. According to the heater, when the working medium is heated, heat in the housing can be completely converted, and the pressure of the working medium at the outlet of the heater can be adjusted, so that a possibility is provided for precision control of the temperature and pressure values of the working medium in a specific state.

The invention discloses an anti-pollution oil tank pressure adjusting device. The device comprises an oil receiving disc, an adjusting rod, a force applying rod and an air discharging valve, wherein the oil receiving disc is arranged above an air discharging hole of a pressurizing oil tank, the bottom of the oil receiving disc extends into the air discharging hole, the adjusting rod extends into the air discharging hole of the pressurizing oil tank through a central hole of the oil receiving disc, the force applying rod is arranged at the top of the adjusting rod, the center hole is higher than the inner bottom face of the oil receiving disc, and the air discharging valve is arranged in the air discharging hole of the pressurizing oil tank. The device is simple in structure, light and convenient to carry, easy to maintain, capable of being repeatedly used and capable of meeting the requirement of pressure regulation of the pressurizing oil tank.

The embodiment of the invention discloses a control method of an air compressor and the air compressor. The air compressor comprises a motor, a threaded rod, a motor drive chip, a spring, an internalpressure adjusting device and a control unit. The motor drive chip is used for driving the motor to drive the threaded rod to move. The threaded rod moves to compress the spring so that the internal pressure adjusting device can be driven to move to achieve pressure adjustment. The method comprises the steps that an outage signal of an external power supply source of the control unit is detected in real time; a power supply source of the motor drive chip is turned off according to the outage signal; the motor drive chip is powered through an energy storage element; and after the power supply source of the motor drive chip is turned off, during the period when the energy storage element is discharged, relative data of a compression position of the spring and a preset reference point when the pressure is adjusted last time is saved. By means of the scheme, a power down state is automatically acquired when the air compressor is abnormally powered off, enough duration is reserved for information preservation, the situation that parameters are adjusted again every time when power is off, and convenience is provided for an operator.

The invention relates to a fixed outlet temperature and pressure type flooded heater. A baffle is welded in a heater housing, so that a fluid entering the heater can be uniformly heated; an electric heating wire is sleeved with a molecular sieve, so that residues of the electric heating wire during burst due to local high temperature are prevented from entering a heating working medium to influence system running; and the electric heating wire is in threaded connection with the heater housing by adopting a flange, so that electric heating wires of different power can be conveniently replaced. When the heating working medium flows through the heater, the electric heating wire is completely dipped in the heating working medium to completely convert electric energy into fluid internal energy, and an electronic expansion value is used for adjusting the pressure of the fluid at an outlet of the heater to reach a required set value. According to the heater, when the working medium is heated, heat in the housing can be completely converted, and the pressure of the working medium at the outlet of the heater can be adjusted, so that a possibility is provided for precision control of the temperature and pressure values of the working medium in a specific state.

The invention relates to the technical field of safety valves and discloses a press type safety valve with a good stabilization effect. The press type safety valve comprises a valve body, the top of the valve body is fixedly provided with a valve cover, the top of the valve cover is movably provided with a moving rod running through the top of the valve cover and extending into the valve cover, the top of the moving rod is fixedly connected with a press button, and the left side and the right side of the moving rod are both fixedly connected with moving bins located inside the valve cover. According to the press type safety valve with the good stabilization effect, by means of the arrangements of horizontal springs and position-limiting rods, the position-limiting rods are made to be capable of moving horizontally left and right; by means of the manners that the left side of the left position-limiting rod is arranged in an inverted isosceles trapezoid, the right side of the left position-limiting rod is arranged in a horizontal T shape, and clamping blocks are provided eight and each clamping block is a horizontal right triangle, when the moving rod moves downwards through pressingof the press button, the clamping blocks clamp the position-limiting rods at the pressed positions, and pressure adjustment of a vertical spring is realized; and by means of the this structure, threaded connection is avoided, and the whole safety valve is made to be more stable.

The invention relates to integrated gas supply equipment for LNG. The integrated gas supply equipment for the LNG comprises an LNG storage tank, wherein the bottom of the LNG storage tank is connected with a first carburetor, a low-temperature boost regulating valve and a four-way valve through pipelines in sequence; the four-way valve is connected with the top of the LNG storage tank through a pipeline; the bottom of the LNG storage tank is also connected with a low-temperature buck regulating valve through a pipeline; the other end of the low-temperature buck regulating valve is connected with the four-way valve through a pipeline; the pipeline used for communicating the low-temperature buck regulating valve and the LNG storage tank is also connected with a second carburetor; a gas outlet end of the second carburetor is connected with a user terminal through a pipeline. According to the integrated gas supply equipment for the LNG, the pressure regulation in a tank body is realized so that the tank body is kept within a set pressure range all the time; a supply effect is guaranteed; potential safety hazards are eliminated; moreover, the integrated gas supply equipment is simple in structure and convenient to mount.

The invention discloses a novel margarine production system comprising a filtering and sterilizing device, a pre-cooling device, a quenching device, a refrigeration supplying device, a kneading device and a hot water supplying device. The margarine production system disclosed by the invention is provided with a filtering and sterilizing link so as to guarantee the quality of materials; the pre-cooling device is arranged to reduce the temperature before materials enter a quenching machine and guarantee the cooling effect of the materials entering the quenching machine; the quenching machine isinternally provided with an in-shaft hot water circulation so as to avoid freezing the materials on a shaft; the kneading machine is internally provided with a temperature-raising control link so as to eliminate the influences on the quality of a kneading process by crystallizing heat and mechanical heat; and furthermore, back pressure adjusting devices are respectively arranged at material outlets of the quenching machine and the kneading machine so as to adjust pressures in the quenching and kneading processes. The novel margarine production system disclosed by the invention can realize temperature, pressure, temperature-raising control and the like in a margarine production process, so that the problem of the traditional margarine processing equipment that the process is rough, the quality is difficult to monitor and the like are solved and the quality of the margarine is guaranteed.

The invention relates to a multiple anti-overflow porridge pot which comprises a pot body and a top cover clamped to the top of the pot body. An annular stepped boss is arranged on the inner cylindrical surface of the pot body, a middle cover is clamped and fixed on the annular stepped boss, the lower end of the top cover, the upper end of the middle cover and the inner wall of the pot body form an anti-overflow cavity, and the lower end of the middle cover, the inner wall of the pot body and the bottom of the pot body form a porridge cooking cavity. An annular handle is arranged in the middleof the outer wall of the pot body, an anti-overflow annular groove is formed in the upper end of the handle, and a handheld groove is formed in the lower end. An annular upper anti-overflow arc surface is arranged on the inner wall of the pot body at the top of the anti-overflow cavity. An annular lower anti-overflow arc surface is arranged on the inner wall of the pot body at the top of the porridge cooking cavity. Multiple anti-overflow structures such as the anti-overflow annular groove, the anti-overflow cavity, a cover foam piercing bulge and the anti-overflow arc surfaces are adopted, so that overflowing in the pot is effectively prevented in the porridge cooking process of people.

The embodiment of the invention discloses a control method of an air compressor and the air compressor. The air compressor comprises a motor, a threaded rod, a motor drive chip, a spring, an internalpressure adjusting device and a control unit. The motor drive chip is used for driving the motor to drive the threaded rod to move. The threaded rod moves to compress the spring so that the internal pressure adjusting device can be driven to move to achieve pressure adjustment. The method comprises the steps that an outage signal of an external power supply source of the control unit is detected in real time; a power supply source of the motor drive chip is turned off according to the outage signal; the motor drive chip is powered through an energy storage element; and after the power supply source of the motor drive chip is turned off, during the period when the energy storage element is discharged, relative data of a compression position of the spring and a preset reference point when the pressure is adjusted last time is saved. By means of the scheme, a power down state is automatically acquired when the air compressor is abnormally powered off, enough duration is reserved for information preservation, the situation that parameters are adjusted again every time when power is off, and convenience is provided for an operator.

The invention discloses a multiplex gear pump energy-saving testing bench suitable for performance testing and reliability checking on various multiplex gear pumps, and relates to a testing bench. The multiplex gear pump energy-saving testing bench comprises a tested multiplex gear pump, loading elements, a synchromesh gearbox, power compensating components, testing elements, self-circulation filtering cooling devices and an oil tank. According to the multiplex gear pump energy-saving testing bench, the synchromesh gearbox is mechanically connected with loading hydraulic motors through the tested multiplex gear pump, the loading hydraulic motors are power and loads of the tested multiplex gear pump at the same time, power compensation is achieved through volume compensating pumps and a mechanical compensating motor, and power recovery is overall achieved. The multiplex gear pump energy-saving testing bench is simple in structure, good in power recovery effect and high in use reliability and practicability.