41results about How to "Continuous and stable operation" patented technology

The invention discloses a building external glass cleaning robot with self-identification and obstacle avoidance capability and a control method thereof. in the robot, a fixture is horizontally fixedly installed on that upper edge of the glass curtain wall outside the building, moving horizontally slidably connected to the power module on the fixture. A main frame fix module is adsorbed on that outside of the out glass curtain wall of the building, the main frame control module is installed on the outside of the main frame fixed module in parallel, the top of the main frame control module is connected with the power module through the moving wire rope, the intelligent cleaning module is slidably connected with the main frame control module, and the walking device is installed on the insideof the main frame control module. The control method comprises a robot cleaning glass curtain wall control method, a robot vertical movement control method and a robot horizontal lateral movement control method. The robot of the invention can move freely outside the building and can realize the functions of self-identification and obstacle avoidance, so that the robot can still keep stable operation under high-altitude wind or other special weather environment.

The invention relates to a method for carrying out catalytic and oxidative treatment on waste gas produced by a hydrogen peroxide propylene oxidation (HPPO) device, mainly aiming at solving the problem that in the prior art, waste gas emission can not meet the standards. According to the method for carrying out catalytic and oxidative treatment on the waste gas produced by the HPPO device, after being preheated in a heat exchanger, the hydrocarbon-containing waste gas produced by the HPPO device respectively enters a first heater and a second heater so as to be heated to the catalytic and oxidative reaction temperature, and then respectively enters a first catalytic oxidation reactor and a second catalytic oxidation reactor so as to be subjected to an oxidation reaction, thus generating H2O and CO2; gases at outlets of the first catalytic oxidation reactor and the second catalytic oxidation reactor are mixed together and then enter the heat exchanger so as to exchange heat with the hydrocarbon-containing waste gas produced by the HPPO device; after heat exchange is finished, the concentration of non-methane hydrocarbon in the purified waste gas is reduced to 120mg / m<3> or less; the technical scheme of high-altitude emission better solves the problems. The method can be used for treating the waste gas produced by the HPPO device.

The embodiment of the invention discloses a constant negative pressure irrigation system, comprising, an irrigation head, a water storage device and constant negative pressure irrigation equipment, wherein, the water storage device is of a tight closed container, and deposited with irrigation water, the lower portion is provided with a communicating hole used for being communicated with the constant negative pressure irrigation equipment through a communicating pipe, the bottom is communicated with the irrigation head directly or through a connecting pipe. The irrigation head is placed at the location where agriculture crop root grows in soil. The constant negative pressure irrigation equipment may include, a through vessel, a porous medium plate and a U shape container, wherein, the through vessel is in an upside down cup shape, the top is provided with an air outlet mouth, which is connected with the communicating hole in the lower portion of the water storage device, and the bottom is open; the porous medium plate normally adheres to the inside wall of the through vessel lower part, the porous medium plate and inside wall adherence place is tight closed; the through vessel is placed in the U shape container, and in the U shape container, liquid is injected to wet the porous plate. By applying the system, continual stable running of negative pressure irrigation is ensured.

The invention discloses a method for adaptive adjustment of the real-time maximum allowable rotating speed of a fan motor. The method comprises the steps of setting the initial real-time maximum allowable rotating speed of the fan motor to be equal to the upper limit rotating speed of the fan motor, and setting standard operating time at the same time; controlling the fan motor to rotate at a commanded rotating speed and counting the actual operating time of the fan motor, wherein the commanded speed is lower than or equal to the initial real-time maximum allowable rotating speed; detecting the actual rotating speed state of the fan motor, judging whether the fan motor operates in an overload state and generating an overload judging result according to the actual rotating speed state; adjusting the real-time maximum allowable rotating speed according to the overload judging result. According to the method for adaptive adjustment of the real-time maximum allowable rotating speed of the fan motor, frequent shut-down and speed-down operation of the fan motor caused by overload protection are effectively avoided, continuous and stable operation of an air conditioner is guaranteed to the maximum extent, and a stable and good using effect of the air conditioner is ensured.

A kind of self-balance coal continuous gasification stove includes grate, furnace, gas tube, there is a steam generator in the internal top of furnace body corresponding to the fuel preparing layer, the water entrance of steam generator connects with cool water source, the steam exit connects with the wind exit of fan, the wind exit tube extends into furnace body under the grate. The steam generator is hollow set in the lumen top of furnace body above the fuel preparing layer. It also can be even interflowing tubes and set in the same position.

The invention relates to a precise combination bearing with adjustable pre-tightening force. The precise combination bearing with adjustable pre-tightening force comprises a small inner ring, a largeinner ring, an outer ring, an axial retainer, axial rollers and a radial roller, wherein the small inner ring is arranged on the small inner ring; the axial rollers are tapered rollers, and the linearspeeds of the two ends of each axial roller are consistent; tapered grooves matched with the axial rollers in size and shape are formed in the axial retainer; the axial rollers are mounted in the tapered grooves; the surfaces, correspondingly contacted with the axial rollers, of the small inner ring and the large inner ring are inclined surfaces matched with the tapered surfaces of the axial rollers; the outer end of each axial roller is provided with a pre-tightening device capable of adjusting pre-tightening force, and the pre-tightening devices are arranged outside the axial retainer; theradial roller is a spherical roller; each pre-tightening device comprises a piston, a spring and a small threaded plug; and the springs are connected with the axial rollers through small ball bodies.The precise combination bearing with the adjustable pre-tightening force has the advantages of high transmission rigidity, stable transmission, convenient mounting, high precision of machine operationand the like, and is not influenced by the speed difference of long-time operation.

The invention provides a circulating conveying structure. The circulating conveying structure comprises a chain wheel, a chain, a plurality of carrying components and a supporting component. The carrying components are arranged on a chain link of the chain. A guiding support part, of the supporting component, under the chain plays the role of guiding support for the loading components, so as to avoid the falling of the middle part when the chain is too long or too heavy. A driver does not need to overcome the self-weight of the chain, and can fully use the driving force to drive the chain to rotate and transport, and the chain operation is stable. The chain is provided with multi-stage supporting components; side guarding plates are arranged on both sides of the chain and are detachably connected together through the supporting components; at the same time, according to the characteristics of the chain itself, the chain links can be extended or shortened by docking so that the circulating conveying structure can realize the overall extension or shortening according to the distance of the transport, and the design section by section is convenient for maintenance.

The invention provides an air conditioner low-temperature refrigeration continuous operation control method and device and an air conditioner. The method comprises the steps that under the low-temperature refrigeration condition, the current operation gear of a draught fan is obtained; if the current operation gear is smaller than a preset gear threshold value and lasts for a first duration, an electromagnetic valve of at least one heat exchange module is closed; and according to the high pressure, the operation gear of the draught fan is controlled, and whether the electromagnetic valves of the more heat exchange modules are closed or not is controlled. Under the low-temperature refrigeration condition, the electromagnetic valve and the gear of the outdoor fan can be controlled in a linkage mode, the purpose of continuous and stable operation of the outdoor fan is achieved, air outlet temperature fluctuation and the noise change degree are reduced, and the comfortable experience of a user is improved.

An embodiment of the present invention discloses a device for maintaining constant negative pressure irrigation. The device comprises a penetrating container, a porous medium plate, and a U-shaped container, wherein the penetrating container is of an inverted cup-shaped. An air-out connection is disposed on the top of the penetrating container, and communicates with a communicating hole in a lower portion of a water receiver. The bottom of the penetrating container is open. The porous medium plate is generally fixed by sticking to an inner sidewall of a lower portion of the penetrating container, and the position of sticking of the porous medium plate to the inner sidewall is sealed. The penetrating container is placed in the U-shaped container that is filled with a fluid capable of infiltrating the porous medium plate. Using the device for maintaining constant negative pressure irrigation, continuous and steady running of negative pressure irrigation may be ensured.

The invention provides a centrifugal pump. The centrifugal pump comprises a pump body, an auxiliary ground inserting device, a water inlet unit and a water outlet unit, wherein the water inlet unit isinstalled on the side wall of the left end of the pump body, the water outlet unit is installed on the side wall of the right end of the pump body, and the auxiliary ground inserting device is installed at the lower end of the pump body through bolts. According to the centrifugal pump, the problems that when the centrifugal pump is placed in water or oil liquid, vibration is generated in the working process, so that the pump body is inclined and inclined, and then the work of the pump body is influenced can be solved; the problems that when the pump body is placed in the water or the oil liquid, a large number of fixed particles and the like existing in the pump body are adsorbed into the pump body, then normal operation of the pump body is influenced, and rotation of an impeller in the pump body is influenced after long-time use are solved; and the problems that when a water outlet of the pump body is connected with a guide pipe, a water guide pipe is prone to falling off due to thewater spraying pressure generated by the pump body, and then the work of the pump body is influenced are solved.

The invention discloses an improved load balancing algorithm based on difference feedback, which comprises the following steps: a threshold value of CPU residual utilization ratio of a server clusternode and a threshold value R (Si) of node load difference value in the cluster are set; The load balancer collects the CPU remaining utilization ratio of the server cluster node in a certain time interval, and calculates the load difference delta L (Si) of the cluster node; and the load balancer collects the CPU remaining utilization ratio of the server cluster node in a certain time interval; theload difference value of cluster node is compared with the threshold value of the set load difference value and the current CPU remaining utilization ratio of cluster node with the threshold value ofthe CPU remaining utilization ratio set before, a group of clusters with the highest node load weight value are selected, and the user request is distributed to the cluster node with relatively highweight value.

The invention discloses an electric brush assembly and a motor. The electric brush assembly includes an electric brush (1), an electric brush sleeve (2) and an elastic pressing piece. The end, sleevedwith a sleeve cavity of the electric brush sleeve (2), of the electric brush (1) is a pressure bearing sleeving end, and the other end of the electric brush is a sliding contact end protruding from asleeve end face of the electric brush sleeve (2). According to the arrangement of the elastic pressing piece, during wearing of the sliding contact end, basically constant elastic pressure is performed at the pressure bearing sleeving end. The elastic pressing piece in the electric brush assembly can perform the basically constant elastic pressure on the electric brush to render the contact pressure between the electric brush and a commutator basically constant during wearing, so that continuous stable running of the motor is ensured. Electromagnetic sparks and work noise which are caused byinsufficient contact pressure are effectively reduced, and therefore the reliability of the motor is improved.

The invention discloses an electric brush installing assembly and a motor. The electric brush installing assembly comprises a fixed installing box (3), an electric brush (1) arranged inside a box cavity of the fixed installing box (3) and an elastic pressing piece, the elastic pressing piece is installed in the fixed installing box (3) and applies elastic pressure to the electric brush (1), and the elastic pressure is kept generally constant during the contact and wear process. The elastic pressing piece in the electric brush assembly can apply the generally constant elastic pressure to the electric brush, so that the contact pressure of the elastic brush between the elastic brush and a commutator can remain the same, and a motor can constantly and stably operate, and electromagnetic sparkand working noises which are caused by insufficient contact pressure can be effectively reduced, thereby improving the reliability of the motor. In addition, it is due to the fact that the elastic pressing piece is fixedly arranged in the fixed installing box, the assembling stability of the electric installing assembly is better, and the working stability of the motor can be improved.

The present invention relates to a layered semipermeable membrane satisfying the conditions below. (A) The maximum peak intensity between 3700 and 2900 cm-1 is 0.08 or greater in the difference spectrum between an IR spectrum measured at 25 DEG C and 97% relative humidity and an IR spectrum measured at 25 DEG C and 3% relative humidity. (B) The peak top wavenumber between 3700 and 2900 cm-1 of theaforementioned difference spectrum is 3400 cm-1 to 3550 cm-1. (C) The N1s peak has a maximum value at 401 eV or greater in X-ray photoelectron spectroscopy in which X-rays are radiated to a coat layer.

The invention provides a centrifugal fan with flow and temperature regulation, which is characterized in that a temperature regulation device for regulating the temperature of fluid in the centrifugal fan in a coolant heat exchange manner is arranged at an air outlet of the fan, and the temperature regulation device is arranged in the fan or at an air inlet of the fan or at the air outlet of the fan; the flow adjusting device capable of adjusting the actual flowing-through flow by adjusting the actual flowing-through area of the fluid is arranged in a mode of sealing the flowing-through area of the fluid, and the flow adjusting device is combined with the variable frequency motor for use, so that the flow adjusting range of the centrifugal fan, especially the low-frequency adjusting range, can be effectively widened; the flow of the fan can be further reduced by reducing the actual flowing area of fluid, and ideal air pressure is obtained; the temperature adjusting device for adjusting the temperature of fluid in the centrifugal fan in a coolant heat exchange mode is arranged at the air outlet of the fan, air discharged from the fan can be directly cooled, the fluid does not need to be cooled independently, and convenience and high efficiency are achieved.

A segmental compaction method and device for fresh alfalfa shreds. In this compaction method, parameters are preset first, and then the compaction process of alfalfa fresh grass and debris is carried out in stages, and the vertical segmented auger and unloading hydraulic motor are used to cooperate to form a compacting and unloading working cycle. The device includes a silo, a discharge barrel, an auger, a compaction barrel, a lifting mechanism, an unloading motor, a pressure sensor, and a signal processing control system. The hydraulic pressure and communication control systems ensure that the compaction density of alfalfa fresh grass at each stage reaches Alfalfa silage technology requires constant density. The invention can reduce the nutrient loss caused by the destruction of fresh alfalfa in the process of mechanical compaction, has uniform compaction, adjustable density, and continuous and stable operation. The invention patent belongs to the field of livestock machinery.

The invention discloses a vibrating sand washing machine for water conservancy equipment production, which comprises a machine body, a funnel is arranged on the top of the body, a feeding pipe is fixedly connected to the bottom of the funnel, and a sand washing machine is arranged inside the body. barrel, the end of the feed pipe away from the funnel runs through the outer surface of the machine body and the outer surface of the sand washing bucket and extends to the inside of the sand washing bucket, both sides of the sand washing bucket are fixedly connected with support rods, the The end of the support rod far away from the sand washing bucket is fixedly connected with a pulley, and the inner side wall of the body is fixedly connected with two symmetrical chutes. The pulley is clamped inside the chute, and the inside of the body is provided with A rotating rod, both ends of the first rotating rod pass through the inner wall of the body and extend to the outside of the body, and one end of the first rotating rod is fixedly connected with a first gear. The vibrating sand washing machine used in the production of water conservancy equipment has the advantages of simple structure, high working efficiency and no waste of water resources.

The embodiment of the invention discloses a method for maintaining constant-negative-pressure irrigation. The method includes the steps that a constant-negative-pressure irrigation device comprising a through container, a porous medium plate and a U-shaped container is arranged, wherein the through container is in an inverted cup shape, an air outlet connector is formed in the top of the through container, the air outlet connector is communicated with the bottom of a water storage device, the bottom of the through container is open, the bottom of the water storage device is directly communicated with an irrigation sprinkler or communicated with the irrigation sprinkler through a connection pipe, the irrigation sprinkler is placed on the position, where crop roots grow, in soil, the porous medium plate is generally attached to and fixed to the inner side wall of the lower portion of the through container, the attachment portion of the porous medium plate and the inner side wall is sealed, and the through container can be placed in the U-shaped container; irrigation is conducted through the constant-negative-pressure irrigation device, the water storage device and the irrigation sprinkler. By means of the method, continuous and stable negative-pressure irrigation can be guaranteed.

The invention relates to a mechanical hair selector for oil field perforation and coring with a shock absorbing structure, comprising a nylon resin layer and a coring orifice plate, one side of the nylon resin layer is hollowed out and connected with a drain hole, the nylon The inner side of the resin layer is provided with an outer straight rod, and one side of the outer straight rod is welded and connected with a connecting block, the inner side of the core-taking orifice is hollowed out and connected with a core-taking cylinder, and the core-taking orifice is located on one side of the connecting block, The inner side of the core barrel is provided with spray nozzles, and the hollow of the spray nozzles is connected with air holes, and the two ends of the core-taking orifice are provided with support blocks, and the outer sides of the support blocks are equipped with clad steel plates. The beneficial effects of the present invention are: the textile cleaning device with multi-directional positioning and stirring function is provided with a shift lever, through the installed shift lever and the gear slot on one side of the shift lever, due to the triangular structure, It is carried out in the way of switching gears, the operation is simple and flexible, and there will be no accidents of stalled and disordered gears, which improves the operational stability of the equipment.

The invention discloses a self-circulation steam engine. The steam engine comprises a boiler and a combustion cavity formed in the lower bottom wall of the boiler. A hot water tank located on an uppertop wall of the combustion cavity is arranged in the boiler, a device box body is fixedly mounted on the right wall of the boiler, a device cavity is formed in the device box body, and a feeding device and a control device are arranged in the device cavity. Circulation of steam in work of the steam engine can be achieved, energy losses can be reduced, meanwhile, the feeding device ensures continuous supply of fuel of the steam engine, frequent manual charging is not needed, manpower is saved, a control system enables the seam engine to continuously and stably operate, and machine reliabilityis improved.

The invention relates to a mechanical selector with a shock absorption structure for oil field perforation and coring. The mechanical selector comprises a nylon resin layer and a coring orifice plate,wherein one side of the nylon resin layer is in hollow-out connection with liquid drainage holes, an external straight rod is arranged on the inner side of the nylon resin layer, and one side of theexternal straight rod is in welding connection with a connecting block; the inner side of the coring orifice plate which is located on one side of the connecting block is in hollow-out connection witha coring cylinder, a jet nozzle is arranged on the inner side of the coring cylinder, and the jet nozzle is in hollow-out connection with air holes; supporting blocks are arranged at the two ends ofthe coring orifice plate, and plated steel is installed on the outer sides of the supporting blocks. The mechanical selector has the beneficial effects that the textile cleaning device with a multidirectional positioning stirring function is provided with a gear lever, through the gear lever and a gear positioning groove formed in one side of the gear lever, operation is easy and flexible due to the triangular structure and the switch shifting way, neither shifting hysteresis nor trip stop can occur, and the operation stability of the device is improved.

The invention discloses an efficient automatic cleaning device for a distillation passage of a U-shaped titanium sponge reactor, and relates to the technical field of U-shaped furnace titanium sponge production equipment.The efficient automatic cleaning device comprises a shell, a cleaning assembly and a partition plate assembly, and the cleaning assembly is arranged at the top of the inner side of the shell; the cleaning assembly comprises a hydraulic cylinder, a first hydraulic connecting valve, a push-out rod, a motor and a high-strength drill bit. The first argon filling opening and the second argon filling opening can be automatically opened in the transfer distillation process of the U-shaped sponge titanium reactor, so that the equipment can continuously fill argon into the shell and the interior of the passing channel, argon is continuously and automatically filled before the process is dredged, a product can be well protected from air pollution, and the production efficiency is improved. In addition, the graphite pad between the passage connecting flange and the large-cover vertical pipe flange can be used for filling a joint gap between the passage connecting flange and the large-cover vertical pipe flange, so that the air tightness when the shell is butted with the passage can be ensured, and the air isolation effect of the equipment can be further improved.

The invention relates to a forming and sintering process of a PANACEA material. The forming and sintering process of the PANACEA material is characterized in that walking beam type sintering equipment is adopted for machining; the interior of the walking beam type sintering equipment comprises a degreasing section, a sintering section and a cooling section; the N2 flow in a furnace is kept to be 28 to 32 Nm < 3 > / h; the furnace pressure is kept to be 12 to 20 mbar; the period of a walking beam is kept to be 112 to 150 s; the conveying rate of a feed is controlled by the walking beam; the powder feed is firstly conveyed from a feeding section to the degreasing section by a conveying mesh belt to remove a residual binder; the feed subjected to catalytic degreasing is conveyed into the sintering section through the conveying mesh belt; the sintering section comprises five high-temperature areas: the temperature of the first high-temperature area is 1000 to 1050 DEG C, the temperature of the second high-temperature area is 1100 to 1150 DEG C, the temperature of the third high-temperature area is 1290 to 1300 DEG C, the temperature of the fourth high-temperature area is 1290 to 1300 DEG C, and the temperature of the fifth high-temperature area is 1150 DEG C; and finally the feed enters the cooling section, and is discharged out of a furnace after being cooled in the furnace so as to be turned into metal powder. According to the forming and sintering process of the PANACEA material provided by the invention, the occurrence of the phenomenon that high-temperature ferrite is generated due to overlong heat preservation time is avoided while densification is completed, and the size, the density and the magnetic conductivity of a product are facilitated.

The invention discloses a de-waxing and ash-removing device for plastic cracking oil production and a cracking system thereof, wherein the ash-removing device comprises an ash sedimentation tank, an ash valve, a wax guiding pipe and a de-waxing valve, wherein the top of the ash sedimentation tank is connected with a de-waxing tower, the bottom of the ash sedimentation tank is provided with an ash-removing pipe, the tank body of the ash sedimentation tank is connected with the wax guiding pipe, and the ash-removing pipe of the ash sedimentation tank is connected with an ash collecting tank; the ash valve is arranged between the ash sedimentation tank and the ash collecting tank; the wax guiding pipe consists of a plurality of pipe fittings, one end of the wax guiding pipe is connected witha wax guiding port, while the other end is connected to a cracker, wherein one section of the wax guiding pipe is a reflux pipe, the front section and rear section of the two ends of the reflux pipe are jointed through a flanged fitting, and the reflux pipe can be provided with pipe fittings with different lengths according to the requirement of wax reflux quantity; and the de-waxing valve is arranged at an outlet of the other end of the wax guiding pipe.

The invention provides a low-temperature refrigeration continuous operation control method and device, an air conditioner and a storage medium, and the method comprises the steps that in an air conditioner low-temperature refrigeration mode, the outdoor fan gear D is adjusted by dividing the high pressure Ph of a compressor, the outdoor fan gear D and the compressor pressure ratio gamma at most in sequence, and on the basis of a first triggering moment when D is equal to the lower limit of D, Ph is smaller than P4 and gamma is smaller than gamma1, linkage control over the outdoor fan gear D, an outdoor unit expansion valve and an indoor unit expansion valve is executed. Wherein P4 is a fourth preset high-pressure value, the lower limit of D is the lowest gear of the outdoor fan, and gamma1 is used for representing a first critical value of the lower limit of the pressure ratio. By means of the low-temperature refrigeration continuous operation control method and device, the air conditioner and the storage medium, even if the air conditioner operates in the refrigeration mode at the low environment temperature, the purpose of continuous and stable operation of the outdoor fan can be achieved.

The invention provides a laser inter-satellite link terminal autonomous relay method and system for flying-around formation. The method comprises the steps that: step 1, a primary satellite and a secondary satellite obtain GNSS information of the primary satellite and GNSS information of the secondary satellite respectively; step 2, sight vectors of the primary and secondary satellites in oppositeside body coordinate systems are recursively calculated in real time according to the GNSS information by the primary and secondary satellites; step 3, the main satellite selects a relay terminal andcalculates a relay window according to the sight vector of the auxiliary satellite in the main satellite body coordinate system in combination with the on-satellite layout of a main satellite laser terminal; the secondary satellite performs relay terminal selection and relay window calculation according to the sight vector of the primary satellite in the secondary satellite body coordinate system; and step 4, to-be-relayed terminals of the primary satellite and the secondary satellite respectively search, capture and track the beacon light of the target terminal so as to realize switching andautonomous tracking of the laser link. The method is easy to implement, the inter-satellite laser link operates autonomously, continuously and stably in the formation operation process, ground intervention is reduced, and link continuity and stability are guaranteed to the maximum extent.