33results about How to "Avoid corrosive damage" patented technology

The invention relates to the technical field of electronics, and particularly relates to a non-contact liquid level monitoring and alarming device based on laser ranging. The non-contact liquid level monitoring and alarming device comprises a laser range finder 1, a processing unit 2 and a processing unit 3, wherein the laser range finder 1 comprises a laser transmitting module 11 and a laser receiving module 12. The non-contact liquid level monitoring and alarming device based on laser ranging is characterized by comprising a support frame 4 used for arranging the laser range finder 1, wherein the support frame 4 comprises a base 41 used for fixing, a vertical rod 42 the lower end of which is connected with the base 41, and a cross rod 43, the upper end of the vertical rod 42 is fixed through screws, the cross rod 43 is provided with the downward laser range finder 1, and the vertical rod is sleeved with a buoy 44 capable of sliding freely up and down. The liquid level above a waterline is monitored and early warned, the non-contact liquid level monitoring and alarming device and a device for establishing an alarm system through a single chip microcomputer and an integrated circuit can be realized, and the real-time monitoring and alarming of mortar water level on a new building material production line and other operation field can be met.

The invention discloses environmentally-friendly shell cleaning powder and a preparation method thereof, relating to the field of decontamination. The cleaning powder is prepared from the following raw materials in parts by weight: 35-55 parts of low-mesh shell powder of 80-150 meshes, 30-50 parts of high-mesh shell powder of 200-300 meshes, 1-10 parts of sodium dodecyl benzene sulfonate, 1-15 parts of sodium bicarbonate, 0.5-10 parts of soap powder, 1-5 parts of urea and 0.1-0.2 part of essence. The cleaning powder has the advantages of strong decontamination ability, quick decontamination, stable performance, antibiosis, environment protection, easy storage, no pollution, simple technology and small possibility of causing object striation, protects skin, prevents chap, prevents freezing, is suitable to use under cold conditions, does not corrode metal and has wide decontamination range.

The invention provides a treatment device for emission reduction control over nitrogen oxide in flue gas, which has the advantages of effectively utilizing an agent, reducing the emission of the nitrogen oxide in the flue gas, simultaneously preventing over-leakage of ammonia gas, prolonging the service life of a spray gun to the greatest extent and reducing the operation and maintenance cost. The treatment device comprises an agent storage tank, a diluting water tank, an agent conveying unit, a diluting water conveying unit, a pipeline mixer, an agent spray unit and a flue wall, and is characterized in that: the agent conveying unit comprises an agent storage tank outlet switch valve, an agent spray pump and an electromagnetic flow meter; an outlet of the agent storage tank is connected with the agent storage tank outlet switch valve, the agent spray pump and the electromagnetic flow meter through a pipeline in sequence and then communicated with an inlet of the pipeline mixer; the agent spray pump is connected with a frequency converter; the frequency converter is connected with a PLC (Programmable Logic Controller) module; and an effluent concentration signal of the nitrogen oxide in a chimney is connected to an input end of the PLC module.

The invention relates to a heat exchanger, and especially a manufacturing method of an adsorption type heat exchanger. A plurality of composition parts of the heat exchanger are composed of iron-based material, such as pipes, a housing part enclosing the bottoms of the pipes and surrounding the bottoms and the pipes are assembled and then brazing is subsequently performed. The method can reliably braze joint welding lines in different widths. When the composition parts, made of steel or stainless steel, of the heat exchanger are assembled, welding films are disposed between the joint welding lines of the composition parts of the heat exchanger, the joint welding lines are then filled with low-melting-point welding materials, and the brazing without a welding flux is then performed.

The invention discloses a raft foundation building lifting and reinforcing structure and method under a corrosive geological environment. The lifting and reinforcing structure comprises a lower columnof an existing building, a raft foundation connected with the bottom of the column, a composite foundation reinforcing layer connected with the lower portion of the raft foundation, a composite pilefoundation connected with the lower portion of the composite foundation reinforcing layer and a water stop curtain connected to the periphery of the raft foundation. During the construction, by arranging the water stop curtain, blocking of the water in a water containing layer and preventing of the outflow of slurry and in-situ water and soil are facilitated, the inverted-L-shaped design of the water stop curtain can further avoid the re-corrosion of the raft foundation, and the limit of the lateral displacement is ensured; and by arranging the composite foundation reinforcing layer and the composite pile foundation, local lifting and overall reinforcement of the raft foundation are facilitated, the water stop curtain is combined to improve the overall bearing capacity, by forming groundwater monitoring holes, monitoring of the level of groundwater during the field construction is facilitated, and maintaining of the stability of water and soil pressure in the underground environment isfacilitated.

The invention discloses a steel plate for a mid-temperature hydrogen-containing pressure container and a manufacturing method of the steel plate. The steel plate for the mid-temperature hydrogen-containing pressure container comprises the following components in percentage by weight: 0.050-0.150% of C, no more than 0.10% of Si, 0.60-1.65% of Mn, no more than 0.015% of P, no more than 0.008% of S,0.90-1.60% of Alt, 0.01-0.06% of Cu, 0.01-0.08% of Ni, 0.90-1.20% of Cr, 0.20-0.60 % of Mo, no more than 0.006% of Ti, no more than 0.020% of Nb, no more than 0.0055% of Ca, and the balance Fe and inevitable impurities, wherein the contents the above elements have to meet the following relations: the quotient of the sum of Cr and Mo divided by C is greater than or equal to 8 and less than or equalto 25; and the sum of 54Al, 156 divided by Cr, and 96Mo is greater than or equal to 208 and less than or equal to 331.

The invention provides a copper alloy bonding lead wire and a preparation method thereof. The copper alloy bonding lead wire takes a copper-based alloy as a matrix and the surface of the matrix is plated with a palladium layer; the copper-based alloy is prepared from the following raw materials: copper, silver, magnesium, gold and cerium; the preparation method of the copper alloy bonding lead wire comprises the following steps: S1, pre-treating raw materials; S2, preparing an alloy blank; S3, preparing an alloy rod; S4, carrying out primary drawing; S5, carrying out medium drawing; S6, carrying out final drawing; S7, carrying out surface washing: washing with an acid washing solution for the first time, washing with de-ionized water for the second time, washing with the acid washing solution for the third time and washing with an ethanol-water mixed solution with an ethanol-water mixed solution; S8, plating the surface with palladium; S9, carrying out fine drawing; S10, carrying out heat treatment; S11, rewinding and sub-packaging. The copper alloy bonding lead wire provided by the invention has the advantages of low production cost, good surface washing effect, small corrosiveness on a copper alloy and easiness of causing wire breaking.

The invention discloses a motor rotor surface pickling burring technology, and relates to the motor manufacturing field. The technology comprises the following steps: 1, preheating a rotor; 2, pickling the surface of the rotor through using a prepared acid solution; 3, cleaning the surface of the rotor with water; and 4, drying the cleaned rotor, wherein the rotor rotates along the axis of the rotor during the step 1-4; and the rotator is supported by two supporting rollers of a supporting roller assembly, and the two supporting rollers homodromously rotate to drive the rotor to rotate. The technology has the characteristics of effective improvement of the pickling processing effect, production efficiency increase and the like.

The invention relates to a prestress lining structure of a high-internal-pressure water conveying tunnel, and belongs to the field of civil engineering. The prestress lining structure comprises a reinforced concrete lining, carbon fiber cloth attached to a prestress anchor cable lining anchorage slot pre-buried in the lining, and carbon fiber pins having a fixing effect. The two ends of the carbon fiber cloth go deep into holes of the reinforced concrete lining through the carbon fiber pins. The holes are filled with structural glue adhesives. The carbon fiber pins are attached to the reinforced concrete lining through the structural glue adhesives. The heads, exposed out of the reinforced concrete lining, of the carbon fiber pins are each in a petal shape and attached and fixed to the carbon fiber cloth. Another layer of carbon fiber cloth is attached to the fixed areas. The technical problems that cracks appear in and even anchor cable failures happen to concrete of anchorage slots of the prestress lining structure of the high-internal-pressure water conveying tunnel due to excessively-large tensile stress are effectively solved, and wide application prospects are achieved.

The invention discloses an environment-friendly iminodisuccinic acid chelate metal salt, and particularly relates to a metal chelate salt, belonging to the field of green chemical fertilizers. The environment-friendly iminodisuccinic acid chelate metal salt comprises a reaction product of a raw material A, a raw material B and a raw material C, wherein the raw material A is any one or a mixture ofmore of compounds which can be subjected to alkaline hydrolysis to obtain butenedionate, the raw material B is any one or a mixture of more of compounds which can be subjected to alkaline hydrolysisto obtain aspartate, and the raw material C is any one or a mixture of more of elementary substances or compounds which can react with acid to generate metal cations. The environment-friendly iminodisuccinic acid chelate metal salt disclosed by the invention is simple in production process with one-step synthesis and without secondary compounding, and high in content of active ingredients, and does not contain ineffective components such as nitrate, sulfate, chloride and carbonate. The production process belongs to an environment-friendly preparation process, so that soil hardening can be effectively avoided, and the packaging, transportation and using costs are reduced.

The invention discloses a sealing method of an acrylic-based micro-fluidic chip. The sealing method comprises the following steps: a) covering at least one layer of an acrylic chip with a micro-channel structure with a cover sheet; b) adding an adhesion promoter into the covering structure; and c) sealing under the conditions that the temperature is 0-80 DEG C and the pressure is 0-1.0 MPa to obtain the acrylic-based micro-fluidic chip, wherein compared with the unsealed micro-channel structure, the height of the micro-channel in the sealed acrylic-based micro-fluidic chip is reduced by less than 5 [mu]m. According to the method, nondestructive sealing of a multi-layer large-area complex-structure acrylic micro-fluidic chip can be realized; and an acrylic glue is diluted with a solvent toreduce the corrosivity of the glue, so that nondestructive sealing of a multi-layer large-area micro-fluidic chip is achieved under the low-temperature and low-pressure conditions.

The invention provides a treatment device for emission reduction control over nitrogen oxide in flue gas, which has the advantages of effectively utilizing an agent, reducing the emission of the nitrogen oxide in the flue gas, simultaneously preventing over-leakage of ammonia gas, prolonging the service life of a spray gun to the greatest extent and reducing the operation and maintenance cost. The treatment device comprises an agent storage tank, a diluting water tank, an agent conveying unit, a diluting water conveying unit, a pipeline mixer, an agent spray unit and a flue wall, and is characterized in that: the agent conveying unit comprises an agent storage tank outlet switch valve, an agent spray pump and an electromagnetic flow meter; an outlet of the agent storage tank is connected with the agent storage tank outlet switch valve, the agent spray pump and the electromagnetic flow meter through a pipeline in sequence and then communicated with an inlet of the pipeline mixer; the agent spray pump is connected with a frequency converter; the frequency converter is connected with a PLC (Programmable Logic Controller) module; and an effluent concentration signal of the nitrogen oxide in a chimney is connected to an input end of the PLC module.

The invention discloses an acid liquor recycling device of a graphite boat cleaning machine. The acid liquor recycling device comprises a base plate, levers and a liquor storage box; fixing frames are symmetrically arranged on the surface of the base plate; the liquor storage box is arranged between the two fixing frames; a liquor inlet box opening is formed in one end, far away from the base plate, of the outer side wall of the liquor storage box in a through manner; and a liquor outlet box opening is formed in one end, close to the base plate, of the outer side wall of the liquor storage box in a through manner. The invention further discloses the graphite boat cleaning machine. The graphite boat cleaning machine comprises a cleaning machine body and the acid liquor recycling device of the graphite boat cleaning machine. With the acid liquor recycling device, the acid liquor can be transferred between the cleaning machine body and the liquor storage box under the effect of the gravity of the acid liquor, and the corrosive damage caused when the acid liquor is pumped by a liquor pump is further avoided while the acid liquor is recycled; and a liquor inlet machine opening and a liquor outlet machine opening which are formed in the cleaning machine body are matched with the height of the liquor storage box for transfer of the acid liquor, so that the machine is very convenient and worthy of popularization.

The invention discloses a medical plastic hose adhesive smearing machine and a using method thereof. The smearing machine comprises a smearing machine box body with a hollow structure, wherein the hollow box body is internally provided with a support frame and a sponge body, the sponge body is provided with a U-shaped adhesion groove with an upward opening, and a U-shaped through groove with an upward opening is formed in the position, corresponding to the U-shaped adhesion groove, on the box body. According to the scheme, the smearing machine has the advantages that an adhesive can be smeared on a medical hose conveniently and rapidly, the whole machine has an ingenious structure, is convenient to use, stable and durable, and the work efficiency can be improved greatly.

The invention provides a composition for forming a heat-conducting lubricant. The composition or raw materials of the composition comprise the following components in parts by weight: 100 parts of dimethyl silicone oil, 200-400 parts of aluminum oxide, 10-50 parts of zinc oxide, 5-45 parts of a lubricant, 1-10 parts of an anti-settling agent, 0.1-10 parts of inorganic salt, 0.1-10 parts of a heat stabilizer, and 0.01-5 parts of a silane coupling agent, wherein the lubricant comprises one or more of zinc stearate, calcium stearate, paraffin oil, naphthenic oil and silicone; the anti-settling agent comprises one or more of ethyl acetate, butyl acetate, xylene, normal hexane and butanol; and the inorganic salt is selected from one or more of nitrite and sulfite. By optimizing the formula, the composition provided by the invention can be used for conveniently preparing the heat-conducting lubricant, and the formed heat-conducting lubricant has excellent heat-conducting property and lubricating property at the same time.

The invention relates to a water heat storage triple generation system for heating. The water heat storage triple generation system comprises a heat storage assembly for storing heat, a protection assembly for preventing a heating element from being damaged and a drainage pipe for introducing a heat storage medium, a softening assembly used for softening the running water heat storage medium is arranged in the drainage tube, the softening assembly comprises a reaction piece which is subjected to a softening reaction with water and a through-hole reticulated shell which is arranged in the drainage tube and is used for accommodating the reaction piece, and softened water is introduced into the drainage tube to serve as the heat storage medium, so that scale can be prevented from being generated in the heat storage process. In short, according to the technical scheme, a coherent and compact structure is adopted, and the problems that a traditional heat accumulating type triple generationcentral air conditioner is large in energy consumption, and heating elements are prone to being damaged are solved; and the problems that a heat storage medium of the traditional heat storage type triple generation central air conditioner is prone to generating incrustation to block a pipeline, and the service life of the traditional heat storage type triple generation central air conditioner is shortened are further solved.

The invention discloses mud removal equipment for industrial wastewater treatment. The mud removal equipment structurally comprises a fixed seat stand, a mud remover, a mud inlet pipe, a control electric box, an extractor and a storage box, wherein the mud remover is embedded in and fixedly connected with the top end of the fixed seat stand; the mud remover comprises a motor, a rotator, a dumpingplate, a mud removal device, an isolation plate and a temporary storage box; and the mud removal device is connected to the side of the rotator in a nesting manner. According to the invention, a rotating rod rotates and operates, and a spiral push plate pushes the wastewater forwards to allow the wastewater to reach the area of the mud removal device; the extrusion work of the spiral push plate isperformed, so sludge can be quantitatively removed; angle blocks can be used for removing sludge adsorbed on the spiral push plate; due to the fact that the sludge is carried in the wastewater and filtered by a barrier plate, the sludge is adsorbed at the tail end of a pipe body; and an extension rod drives a lantern ring to move, and an inclined knife is arranged at the top end of the lantern ring and attached to the barrier plate, so the sludge adsorbed on the barrier plate can be effectively scraped, and corrosive damage of the sludge to the equipment is avoided.

The invention relates to a combined water and thermal storage system and a device thereof. (1) first, filtration is performed on rainwater by a filtration assembly, and the filtered rainwater flows into a drainage pipe for softening; (2) secondly, the filtered and softened rainwater flows into a heat storage assembly for heating and heat preservation; and (3) thirdly, a PLC controller and a leakage protector are entirely used for monitoring the whole process of heating and heat preservation of the rainwater to avoid damage of a circuit component. In short, the technical scheme of the inventionadopts a coherent and compact structure, and solves the problem of large energy consumption and easy damage to heating components in a traditional combined regenerative central air conditioner, and further solves the problem that a heat storage medium of the traditional combined regenerative central air conditioner is prone to cause scale, cause blockage of a pipeline and shorten the service lifeof the traditional combined regenerative central air conditioner.

The invention discloses a motorcycle headlamp and a motorcycle thereof. The headlamp comprises a light distribution mirror and a reflecting mirror; the reflecting mirror is provided with a hermetical connecting groove embedded into and hermetically connected with the edge of the light distribution mirror, and the light distribution mirror is provided with a baffle plate, wherein the baffle plate is extended outwards and is in gapless contact with the front end of the outside wall of the hermetical connecting groove; and the lower edge of the baffle plate is extended backwards and provided with a lingual plate, the lower edge of the reflecting mirror is positioned in back of the hermetical connecting groove and provided with an accommodating groove for accommodating the lingual plate, the accommodating groove comprises a rear side plate and a left side plate and a right side plate on the left side and the right side of the lingual plate, a ventilated gap is formed between the rear end of the lingual plate and the rear side plate, and the groove bottom of the groove section of the hermetical connecting groove opposite to the lingual plate is provided with a ventilated through hole for communicating the ventilated gap and the internal space of the headlamp. The ventilated passage of the headlamp is designed invisibly, so integral attractiveness and compactness of the headlamp areensured, the arrangement of the whole motorcycle is easy, and smooth ventilation of the headlamp is ensured; and moisture and dust are prevented from entering the interior of the headlamp by using gravity, the service life of the headlamp is prolonged, the use and maintenance costs are reduced, and safe driving is ensured.