279results about How to "Reduce production and maintenance costs" patented technology

The invention relates the chemical engineering field, especially a H2 and CO2 inhibiter. H2 and CO2 are produced accompany to oil-gas field exploitation and transfusion process, and can corrode exploitation equipment. The inhibiter contains at least (by wt. %): isopropyl alcohol 10-30, fatty alcohol polyoxyethylene ether .1-0.5, and litol polyoxyethylene ether 0.1- 1.0. The inhibiter can be used in oil / water well with high temperature and pressure, and has the advantages of good corrosion resistance, low consumption, low cost and high efficiency.

The invention discloses a method for detecting the temperature field of a calcination rotary kiln and a device thereof. The method comprises the following steps: mounting a group of temperature thermocouples in the inner lining of the kiln body of the calcination rotary kiln in the axial direction of the kiln body; determining the amount and the distribution clearance of the thermocouples according to the requirements for measuring the precision of temperatures on the preheating section, the calcining section and the cooling section of the calcination rotary kiln; and connecting each thermocouple with the wireless communication box mounted on the shell of the calcination rotary kiln body, so that the wireless communication box can transmit the temperature signal of each thermocouple to a computer analysis system on a real-time basis. The invention has the advantages that the real-time measurement of the distribution of the temperature field of the overall rotary kiln is realized; the most authentic material temperatures can be directly measured without being interfered by the flue gas and the flame in the kiln; the construction cost of the complete set of devices is far lower than that of the prior infrared thermometer system; the spare parts are cheap, and the maintenance and the replacement are convenient, therefore, the production cost and the maintenance cost are reduced; and the technical characteristic is reliable, therefore, the failure rate is low. As accurate measurement is realized, the invention provides a calcination control system with strong support for improving the automatization.

The invention relates to a complex processing method for prolonging the service lift of chain grate key parts, belonging to mechanical manufacturing and material processing and application technical field, which comprises: firstly, surface nondestructive testing is carried out on the key parts of the chain grate of process; molten salt complex processing are carried out in parts of the surface according to the surface drawbacks tested by surface nondestructive testing; before the laser shocks, the workpiece surface is coated with black coating layer and use water as protective layer, and the laser shock processes the area which is easy to fatigue and fracture and has concentrated stress. The molten iron pretreatment spray-feeding device before iron-making blast furnace has the advantages of simple shortcut, high efficiency, low maintenance cost, short processing time (30 minutes to 5 hours), and the continuous operation can be realized, thus, high efficiency of production is ensured.

The invention discloses a force balance type electric cylinder featuring fluid circulation, comprising a bearing, a screw, a screw nut and an oil cylinder body. The oil cylinder body comprises a cylinder barrel, a front end cover, a rear end cover and a piston rod which can move back and forth in the cylinder barrel. The front end cover and the rear end cover are respectively arranged in front ofand at the back of the cylinder barrel. The screw nut is in rigid connection with the piston rod. A first oil holding cavity is formed between the screw and the piston rod. A second oil holding cavityis formed between the cylinder barrel of the oil cylinder body and the piston rod. A first hydraulic circuit connector and a second hydraulic circuit connector are arranged on the oil cylinder body and are respectively connected with a first one-way valve and a second one-way valve, with opposite flow directions, by pipelines. An energy accumulator is connected between the first one-way valve andthe second one-way valve by a pipeline. The front end of the cylinder barrel is provided with at least a group of first magnetic inductive switches and the rear end thereof is provided with at leasta group of second magnetic inductive switches. A permanent magnet guiding slide block is arranged at the rear end of the piston rod. A guide rail is arranged at one side of the cylinder barrel. A tensile hydraulic damping buffer mechanism for limit protection and a retractile hydraulic damping buffer mechanism for limit protection are arranged between the oil cylinder body and the piston rod. Thefirst oil holding cavity, the second oil holding cavity, the first one-way valve, the second one-way valve, the energy accumulator and a connecting pipeline are full of hydraulic circulating media with pressure.

The invention discloses a mounting method and a mounting device for replacing a valve under pressure. The mounting device comprises a motor, an oil pump, a mounting frame, a clamp board and a positioning bolt, wherein the mounting frame comprises a hydraulic cylinder of which a hydraulic rod is provided with a connecting plate; the connecting plate is provided with a stopper hydraulic rod of which the bottom is detachably provided with a stopper; a spray arrester is sleeved outside the stopper hydraulic rod; the hydraulic cylinder in the mounting frame is driven by the motor and the oil pump; the center of the clamp board is provided with an internal thread through hole; the clamp board is provided with a bayonet communicated with the internal thread hole and the outer edge of the clamp board; the clamp board at the periphery of the internal thread through hole is distributed with through holes; the periphery of the positioning bolt is provided with a section of external threads matched with the internal thread through hole; the center of the positioning bolt is provided with a central through hole; and the side wall of the positioning bolt is provided with an opening. The mounting device for replacing the valve under pressure can safely, conveniently and quickly complete the replacement of a main control valve of a X-mas tree on a well head.

The invention relates to a hyper-pressure single-worm extrusion machine, comprising: a machine barrel, a screw bolt, a charging hopper, a driver, a motor, a cooling device, and an engine base. The invention is characterized in that: the cooling device is arranged on the machine barrel and the screw bolt; the geometric compression ratio of screw bolt is designed as high as 10-120; and the rotational speed of screw bolt is 30-1500 r / min. The invention has following advantages that: the cooling devices are arranged on the machine barrel and the screw bolt to eliminate the temperature over normal ones caused by the high-speed friction between chemical material and the machine barrel and screw bolt; the compression ratio of screw bolt is designed as high as 10-120 (according to the property of chemical material) to form a hyper-pressure solid transfer piston formed by extruded chemical material between the machine barrel and screw bolt; then the chemical material and the screw bolt, the chemical material and the machine barrel, the chemical material and the chemical material has friction in the hyper-pressure condition to generate heat, with which the chemical material can be melt and molded in short time, to be incised and mixed smelt; according to the friction temperature, the rotational speed of screw bolt is set at 30-1500 r / min, for controlling the amount of feeding material, the cooled amount and the friction temperature in stable balance condition.

The invention discloses a buffering splash-protection dovetail molten iron trough of a pig machine. The trough is designed into two sections of lap joint type dovetail structures and comprises a head buffering molten iron holding slot, a middle transition molten iron trough and a tail dovetail molten iron nozzle. The buffering splash-protection dovetail molten iron trough is integrally arranged between a molten iron tank of the pig machine and the upper chain belt of a driven wheel. Molten iron is cast to the head buffering molten iron holding slot through the molten iron tank and forms a molten bath, thereby relieving the impact of the molten iron. The middle transition molten iron trough buffers the flow of the molten iron twice, and the molten iron and the chain belt forms a 6-10 degree angle of inclination, and the even flow distribution of the molten iron enables the molten iron to evenly flow into a pig mold in a thin and wide waterfall shape. Compared with conventional integral molten iron troughs, the dovetail molten iron trough can reduce molten iron splashes, improve the yield of the molten iron, improve the working environment of operators, relieve the erosion to the pig mold and prolong the service life of the pig mold, and the surface quality of iron blocks is good. Moreover, transportation, installation and debugging are convenient, and meanwhile, the production and maintenance costs are reduced.

The invention discloses a pier protection device for a bridge in a debris flow channel. Aiming at the defects that an existing product is unfavorable in long-term use and high in maintenance and replacing cost, the pier protection device is of a semi-enclosing structure enclosing a pier and is fixed in a channel through vertical columns; the front end of the pier protection device serves as a water-coming tip with the included angle being theta, and the tail ends of two water-coming tip bevels of the water-coming tip extend backwards in the channel direction to form side bars; and the pier protection device is of a fence structure with transverse fence bars. The invention further provides a design method of the pier protection device. The design method is used for scientific design of important parameters such as the interval D of the fence bars, the height H of the protection device, the width B of the protection device, and the length L of the side bars. According to a product of thepier protection device, the movement state of debris flow can be changed only in a very small area at a pier, the pier protection device overall has the functions of protection of trapping coarse sand and discharging fine sand and homeopathic dredging, and secondary hazards are prevented; the product is concise in structure, convenient to mount, low in production and maintenance cost and capableof being used for a long term; and the matched design method is scientific and reasonable.

The invention discloses a hard rock roof rock burst segmentation direction control fracturing treatment technology. The technology comprises the following steps of S10, obtaining hard rock roof groundstress parameters; S20, designing an arranging manner of a directional long drill hole and parameters of a direction control fracturing technology; S30, constructing the directional long drill hole;S40, arranging a segmentation direction control fracturing device in the directional long drill hole; S50, carrying out segmentation direction control fracturing construction; S51, forming a manual precast direction control jet crack; S52, forming a fracturing crack net; S53, stopping a pump, draining water, shrinking a packer, and dragging to the next segment of fracturing position; and S54, repeating the steps of S51-53, and finishing whole directional long drill hole fracturing construction. According to the hard rock roof rock burst segmentation direction control fracturing treatment technology, a hard rock roof layer can be precisely controlled, fracturing is carried out segment by segment, a three-dimensional gap communication network is formed, a hard rock roof can be effectively weakened, and the hard rock roof can be promoted to properly collapse.

The invention discloses a double heading communication system of a double heading train set. The system comprises a double heading communication device which is used for collecting state information of a current train and converting the state information into carrier signals, and a hard-wired cable which is connected with the double heading communication device and is used for transmitting the carrier signals to other trains. According to the double heading communication system disclosed by the invention, a locomotive hard-wired double heading line is reused by the hard-wired cable, so it is unnecessary to set up a special cable channel additionally, production and maintenance costs are greatly reduced, and a utilization rate of line resources is improved. According to the double heading communication device, the hard-wired cable is taken as a physical layer dielectric carrier, the state information of the current train is sent to the other trains in a power carrier communication mode, and the whole double heading train set is enabled to realize internal intercommunication. According to the power carrier communication mode, the communication speed is fast, the data transmission volume is high, and the complicated communication demands of the double heading train set can be satisfied. The invention also discloses a double heading train set comprising the double heading communication system. The double heading train set has the advantages as mentioned above.

The invention belongs to the field of radar technology and communication technology, in particular to a tightly coupled antenna array with wide bandwidth, wide angle and low profile. The antenna arraycomprises a supporting member composed of a supporting plate, a supporting plate frame, a reflecting plate and a feeding joint, and an antenna line composed of a Wilkinson power divider, a feeding balun, a radiation current sheet and a frequency selection surface; The antenna line is laminated by two dielectric copper clad plates, and are divided into four layers: circuit structure layers of theupper and lower layers of an upper layer dielectric plate and circuit structure layers of the upper and lower layers of a lower layer dielectric plate; the first and fourth layers are in a symmetricalradiation structure, the second layer is an empty plate, and the third layer is provided with the power divider and balun. The first and fourth layers are electrically connected through conductive vias to provide a closed environment for the third layer and suppress energy leakage. The radiation current sheet is symmetrically distributed, which can reduce the impedance at the point where the balun is coupled with the current sheet. Frequency selective surface is located on the third layer, which can be used to replace the impedance matching dielectric layer on the current sheet, so that the antenna can be fabricated and installed more easily.

The invention discloses a lifting support plate bracket for receiving a material of a steel plate shearer in the field of the steel plate shearer. The lifting support plate bracket comprises two guide rods fixedly arranged on the support plate; the guide rods are arranged in a guide groove on a guide holder in a sliding manner through a guide shaft; a limiting block is arranged at the bottom of the guide groove; a limiting baffle plate is also arranged on the guide holder; a limiting bearing matched with the limiting baffle plate is also arranged on each guide rod; a cylinder piston rod is hinged at the bottom of the support plate; the gravity center of a mechanism composed of the support plate and the guide rods is positioned between a hinge point on the support plate and the guide bearing, and a cylinder drum is hinged on the base. According to the lifting support plate bracket, the material receiving work of a board is finished by two cylinders matched with the guide bearing and a limiting bearing to control the support plate to act and rotate up and down; the material receiving control process is more convenient and reliable; the failure rate is reduced; the production cost is reduced, and the lifting support plate bracket can be applied to the material receiving process of the steel plate shearer at the same time.

The invention relates to a thickness control method of a mixed material layer, comprising the following steps of: acquiring round roller speed, round roller output coefficient, speed of mixed material sintering, width of a sintering pallet and density of the mixed material; multiplying the round roller speed with the round roller output coefficient to obtain a product which is then divided by the product of the speed of the mixed material sintering, the width of the sintering pallet and the density of the mixed material to obtain a quotient which is taken as the current thickness of the mixed material layer; and regulating the ratio between the round roller speed and the speed of the mixed material sintering to cause the current thickness of the mixed material layer to be close to the set layer thickness. The invention also discloses a thickness control system of the mixed material layer. The method realizes control to the thickness of the mixed material layer by a soft-sensing mode, thus not only saving the production and maintenance cost of a manufacturer, but also having the advantages of stable and reliable control, etc.

The invention relates to the field of auxiliary instruments for ball training, in particular to a table tennis collection vehicle. The collection vehicle comprises a collection bin of which the front end is provided with an opening, a handrail, ball-picking plates, two joysticks, two intermediate rollers, rear-end rollers and an elastic reset part, wherein the middle part of the collection bin horizontally bends upwards, the two intermediate rollers are symmetrically arranged on both sides of the middle part of the collection bin, the rear-end rollers are arranged at the rear end of the collection bin, and the lower edge of the opening is 5mm away from the ground; and the two ball-picking plates are rotatablely connected with both sides of the opening respectively, the elastic reset part is arranged between the ball-picking plates and the collection bin, the handrail is connected with the middle part of the collection bin, and the two joysticks are arranged on the upper part of the handrail and are connected with the plate surfaces of the ball-picking plates through steel wire ropes respectively. The table tennis collection vehicle can pick table tennis under the condition that the waist is not bent, so that the sports is greatly facilitated; and in the table tennis collection vehicle, the manual work is taken as a power source, and is environment-friendly.

The invention discloses a catalyst for producing methyl acetate through carbonylation of dimethyl ether. The catalyst is characterized by comprising a modified EMT molecular sieve, wherein the modified EMT molecular sieve is obtained by sequentially processing by virtue of acid and pyridine and / or a pyridine substitute; the pyridine substitute is a compound formed by independently substituting one, two or three of five Hs on a pyridine ring with a substitute selected from F, Cl, Br, I, CH3, CF3, CH3CH2 or NO2. The catalyst has very high stability and methyl acetate selectivity and can still preserve high methyl acetate selectivity after reacting for a long time.

A button delivery rocker arm modification mechanism of a button attaching machine tool comprises a stepping motor and a rocker arm, wherein the stepping motor is vertically installed on a pedestal. The mechanism is characterized in that a driving wheel is installed on a stepping motor output shaft, the driving wheel is connected with a driven wheel through a synchronous belt, a driven wheel output shaft is connected with a rocker arm rotating shaft, the rocker arm rotating shaft is installed inside a rocker arm rotating base, a sliding air cylinder is fixed on an air cylinder base, a sliding air cylinder threaded rod penetrates through the air cylinder base and is connected with a rocker arm rotating base installation portion, the air cylinder base is fixed at the upper end of a support, a linear guide rail is fixedly installed on the side face of the support below the air cylinder base, a sliding block is installed on the linear guide rail, and the inner side face of the rocker arm rotating base installation portion is fixed on the sliding block. According to the button delivery mechanism, the rocker arm is driven by the synchronous belt to conduct a reciprocating rotation motion, the stability, the precision, the flexibility, the performance and the service life of the button delivery mechanism are greatly improved, the whole mechanism is simple in structure and low in assembly difficulty and commissioning difficulty, the mechanical assembly efficiency is improved, and the production and maintenance cost is reduced.

The invention discloses an OBD vehicle-mounted terminal intelligent diagnostic device and a diagnostic method thereof. The OBD vehicle-mounted terminal intelligent diagnostic device comprises an MCU microcontroller, a serial port 0 module, a serial port 1 module, button control, a liquid crystal display module and a power supply module, etc. The intelligent diagnostic device performs data communication with an OBD vehicle-mounted terminal via the serial port 0. The intelligent diagnostic device performs analysis processing on the received data. The intelligent diagnostic device performs data communication with an upper computer via the serial port 1. Reading diagnosis is performed on all the modules of the OBD vehicle-mounted terminal so that judgment of problems existing in all the modules can be realized. The problems existing in the OBD vehicle-mounted terminal can be immediately judged so that the technical requirements for detection personnel can be reduced, detection visibility is enabled to be better, detection work efficiency of the product can be enhanced, production and maintenance cost of the OBD vehicle-mounted terminal can be reduced and thus preparation for batch detection is realized.

The present application discloses a catalyst for the carbonylation of dimethyl ether to produce methyl acetate, which is characterized in that it contains a modified EMT molecular sieve, and the modified EMT molecular sieve is treated with an acid and then treated with pyridine and / or a pyridine substitute EMT molecular sieve; the pyridine substituent is one, two or three of the five H on the pyridine ring independently selected from F, Cl, Br, I, CH 3 、CF 3 、CH 3 CH 2 or NO 2 The substituents in replace the resulting compound. The catalyst has high stability and methyl acetate selectivity, and can still maintain high methyl acetate selectivity after long-time reaction.

The invention discloses a wear-resisting coating of a YAG / 8YSZ dual ceramic layer structure and a plasma preparation method. According to the structure of the coating, a binding layer is prepared from NiCoCrAlY, a ceramic bottom layer is prepared from 8YSZ, and a ceramic top layer is prepared from YAG. The preparation method comprises the steps that 1, a base body is processed; 2, spray materials are pretreated; 3, the surface of the base body is cleaned; 4, the surface of the base body is subjected to abrasive blasting; 5, the surface of the base body is preheated; 6, the binding layer is prepared; 7, the binding layer is cooled; 8, the ceramic bottom layer is prepared, and particularly, dried ZrO2.8Y2O3 powder is used for preparing the ceramic bottom layer on the cooled binding layer through the plasma spraying technology; 9, the ceramic bottom layer is cooled, and particularly, the surface of the coating is subjected to air cooling to be cooled to 50-80 DEG C; 10, the ceramic top layer is prepared, particularly, the dried Y2Al5O12 powder is used for preparing the ceramic top layer on the cooled ceramic bottom layer through the plasma spraying technology; and 11, the coating is prepared after being naturally cooled to the indoor temperature.

The invention discloses a production method for polyethylene double-crest reinforced spiral winding pipes, and belongs to the field of water supply and drainage pipes. The production method includes the steps of extruding melted regenerated polyethylene by a regenerated-polyethylene twin-screw extruder, extruding coated polyethylene by a coating extruder, extruding a polyethylene reinforced double-crest sectional material by a mold for the polyethylene reinforced double-crest sectional material, cooling and shaping the polyethylene reinforced double-crest sectional material by a shaping sleevein a vacuum shaping and cooling water tank, continuously drawing the polyethylene reinforced double-crest sectional material out of the vacuum shaping and cooling water tank by a tractor, and feedingthe polyethylene reinforced double-crest sectional material into a winding machine. The production method has the advantages that heating, splicing and winding are performed synchronously, and integrated online forming is realized, so that the cost of the pipes is reduced, and the strength of the pipes is improved; the production method can be widely applied to the pipe production field.

The invention provides a double-windwheel and double-rotor type wind-driven generator. The double-windwheel and double-rotor type wind-driven generator comprises a base on which a housing is fixedly arranged, wherein an outer rotor in which an inner rotor is embedded is arranged in the housing; a magnet steel is arranged on the outer surface of the inner rotor, and a coil is arranged on the inner wall of the outer rotor in a winding manner, or the coil is arranged on the outer surface of the inner rotor in the winding manner, and the magnet steel is arranged on the inner wall of the outer rotor; wind wheels which are rotated in opposite directions are correspondingly arranged at an outer rotor shaft end part and an inner rotor shaft end part; the outer rotor shaft end part extends out of the housing and is connected with the outer rotor, and the inner rotor shaft end part extends out of the housing and is connected with the inner rotor; the coil is used for outputting the generated electricity through a conductive ring, a carbon brush and an outgoing wire. With the adoption of the double-windwheel and double-rotor type wind-driven generator, the electricity can be generated in a low-wind-speed and weak-wind environment, and moreover, the generating capacity is improved, the cost is decreased, and the low-wind-speed wind-driven generation is practical; the double-windwheel and double-rotor type wind-driven generator has the advantages of being easy to manufacture, safe, reliable, simple to maintain, and free from environmental pollution.

The invention belongs to the technical field of belt type roasting machine pelletizing techniques, and particularly relates to a hot air supply system for a belt type roasting machine. The hot air supply system is characterized by comprising a pulverized coal bin, wherein a pneumatic pulverized coal transmission device and a dust collection device are arranged at the top of the pulverized coal bin; an anti-blocking safety protection device, a valve body and a pulverized coal metering scale are arranged at an outlet of the bottom of the pulverized coal bin; the pulverized coal metering scale is connected with a coal injection Roots blower and a combustion-supporting Roots blower; the coal injection Roots blower and the combustion-supporting Roots blower are respectively connected with a powdered coal combustor in a pulverized coal combustion chamber by connecting pipelines; the pulverized coal combustion chamber is connected with a hot air pipeline I and a hot air pipeline II respectively; the hot air pipeline I is arranged above an upper shield of a roasting section of the belt type roasting machine; the hot air pipeline II is arranged above an upper shield of a soaking section of the belt type roasting machine; and a temperature measuring device is arranged in the pulverized coal combustion chamber. The hot air supply system is simple in structure, reasonable in design, high in automation degree, and stable in system operation; the belt type roasting machine can use pulverized coal as a fuel; the temperature is easy to control; and the heat efficiency of the pulverized coal is high.

The invention relates to an under-voltage supervision circuit which comprises a relay subcircuit, wherein current-limiting resistors and relay coil are connected in series in the relay subcircuit. The under-voltage supervision circuit also comprises a monitoring control unit which comprises an optical coupler device and a voltage divider monitoring subcircuit. The voltage divider monitoring subcircuit and the relay subcircuit are connected in parallel. The voltage divider monitoring subcircuit also comprises voltage divider resistor and reference resistor which are connected in series. The secondary of the optical coupler device and the relay subcircuit are connected in series. The primary of the optical coupler device and the reference resistor are connected in parallel. The under-voltage supervision circuit in the invention has the advantages of accurate prompt result, simple structure and convenient operation. And the production and maintenance cost are effectively reduced.

The invention discloses an automatic broken belt capturing device, belonging to the technical field of belt transportation. The capturing device comprises a support, a non-return support roller, a vertical roller and a wedge block, wherein the support comprises a lower support, an upper support and a main support, and the upper support, the lower support and the vertical roller are symmetrically and fixedly arranged at two ends of the main support; the wedge block comprises an upper wedge block and a lower wedge block; the lower wedge block is connected with the lower support, the upper wedge block is connected with the upper support, and after the lower wedge block and the upper wedge block are combined with each other, the lower wedge block and the upper wedge block form a space which can be tightly closed and can be used for capturing the broken belt; a tension spring is arranged between the upper wedge block and the lower wedge block; and the non-return support roller arranged in the middle of the main support is connected with the lower wedge block through a connecting rod. The capturing device not only can capture the broken belt to avoid the capturing delay or the second breakage, but also can adapt to the transportation of various materials with different heights to prevent the belt from deviation; and the automatic broken belt capturing device is reasonable and simple in structure, low in production and maintenance costs, and reliable in running, thereby being suitable for popularization and application during production.

The invention discloses an annular gluing device. The annular gluing device comprises a circular turnplate, a gluing manipulator and a gluing machine, wherein a tooling plate is arranged on the circular turnplate; the manipulator is arranged on the right side of the circular turnplate; the gluing machine is connected on the manipulator; a machine frame is arranged on the outer sides of the turnplate and the manipulator; the machine frame surrounds the turnplate and the manipulator; the gluing machine is arranged at the left end of the machine frame; a sliding mechanism is arranged at the upper end of the machine frame; a pressing block is arranged on the sliding mechanism; a telescopic device is arranged in the middle of the sliding mechanism; the telescopic device is controlled by a penumatic unit; the telescopic device is correspondingly arranged on the tooling plate on the turnplate. Through arrangement of the turnplate and the tooling plate, annular machining of a lamp shell is achieved, the machining operation of thee whole lamp shell can be completed by only two workers, and the gluing operation of the whole lamp shell is annular, so that the lamp shell gluing efficiency is improved, and the labor cost is reduced.

The invention provides a washing machine. The machine comprises a main machine body, a drainage pump and a water flow distribution assembly. Multiple water flow channels are formed in the main machinebody; the drainage pump is arranged in the main machine body; the water flow distribution assembly is arranged in the main machine body and provided with a water inlet and multiple water outlets, thewater inlet is connected with the drainage pump, the water outlets are communicated with the water flow channels respectively, and water which flows into the water flow distribution assembly can selectively enter one of the water flow channels under the effect of the water flow distribution assembly. According to the washing machine, through arrangement of the water flow distribution assembly, multiple requirements of the washing machine in the working process can be met through one drainage pump, on one hand, the number of water pumps is reduced, and the cost of producing the washing machineis lowered; on the other hand, the space is saved, the internal structure of the washing machine is simplified, the whole system is simplified under the condition of guaranteeing normal work of the washing machine, the washing machine is convenient to operate, and the performance parameters of the washing machine are improved.

The invention discloses a method for defoaming a pipeline from the mouth of a gas well to a separator by using a solid defoamer device. The method comprises the following steps of: mounting the solid defoamer device on the gas transmission pipeline between the mouth of the natural gas well and the separator; specially making a defoamer be in a solid state and putting the solid defoamer into the solid defoamer device; enabling the solid defoamer to be in direct contact with transmission fluid; and dissolving the solid defoamer by the transmission fluid. The method has the beneficial effects that: the method is energy-saving and consumption-reducing and has no need of using a plunger pump and electric energy; the solid defoamer device has an automatic adjustment function, when liquid is produced, the solid defoamer is dissolved, when the liquid producing capacity is larger, more solid defoamer is dissolved, and thus, the waste of pharmaceutical products is avoided; the solid defoamer is placed in the solid defoamer device at a time and can be used for a number of days, and the daily putting is not needed, so that the cost for production and maintenance of the gas well is greatly saved, the technical difficulty and the labor intensity in operation are reduced, and the labor power is saved; and the fluid is in sufficient contact with the solid defoamer, the defoaming is complete, and the accident that foams cross a tower can be effectively prevented, so that the method is safe and reliable.

The present invention discloses an extendible multiple CPU system, including mother plate and several CPU modules. The described every CPU module is equipped with a fastening board interface. It is characterized by that said several CPU modules are formed into a laminated type structure by adopting layer-by-layer fastening connection mode from top to bottom, the lowest CPU module is fastening-connected on the mother plate. The communication between the described several CPU modules can be coordinated by means of setting route.

The invention discloses a transferring cabin with a peroxide biological decontamination function, which consists of a transferring cabin body, a ventilation system, a sterilization circular air returning system, a positive temperature coefficient (PTC) auxiliary heating system, a filtering system, a pneumatic control system, an electric appliance control system, a peroxide generator, and the like, wherein the adequate sterilization of materials to be transferred in different clean areas can be guaranteed, and the problems of the bacteria cross infection caused by the halfway sterilization of materials during the transferring process among different clean areas can be fundamentally solved. In real application, the transferring cabin is particularly suitable for the product with the surface requiring low-temperature and high-temperature sterilization, and has the beneficial effects of no residue after the sterilization and no pollution.

The invention relates to a catalyst for preparing acrylic acid and / or methyl acrylate from compounds containing carbon monoxide and a formaldehyde compound. The catalyst contains an acidic molecular sieve and a mesoporous binder; the formaldehyde compound is selected from at least one of formaldehyde, methylal and trioxymethylene; the mesoporous binder is selected from at least one of mesoporous silica, mesoporous magnesium oxide, mesoporous titanium oxide, mesoporous pseudo-boehmite, mesoporous kaolin and mesoporous montmorillonite.