130results about How to "Leak-proof" patented technology

The invention relates to anti-freezing and anti-cracking concrete in the field of building materials. The anti-freezing and anti-cracking concrete comprises following components in percentage by weight, 10-20% of cement, 25-30% of sand, 30-45% of gravel, 10-15% of water, 2.0-5.0% of additives, 1.0-2.0% of water-proof agent and 0.0-1.4% of anti-freezing agent, and is produced by burdening and stirring. Compared with the prior art, the anti-freezing and anti-cracking concrete has the advantages of high strength, good toughness, cracking resistance, leakage resistance, high stability and the like, is capable of effectively solving the problems of cracking, brittleness and water seepage caused by the fact that the concrete is subjected to repeated freezing and thawing due to change of temperature difference, and increasing the indexes such as strength, toughness and stability, and is especially suitable for high and cold areas in north.

The invention is a recycled solidfree micro-foam drilling fluid or a completion fluid, which comprises the following components in parts by weight: 1. 2-3 parts of recycled solidfree micro-foam composite treatment agent SD-LNA; 2. 0.5-1 part of low-density solidfree tackifier SD-LNV; 3 0.5-1 part of low-density modifier SD-LFD; 4. 0.5-1 part of low-density foam stabilizer SD-LFS; 5. 0.5-1 of low-density flow type modifier SD-LFR; and 6. 100 parts of water. According to a normal preparation method, the above substances are added into water successively, mixed and stirred evenly under normal temperature and normal pressure. The invention has the advantages of low density, high viscosity, small low fluid loss, good lubricating property, strong landwaste suspension property, easy maintenance,fine cleaning capability of wells, fine inhibitory capability on clay and shale, no micro-foam convergence, recycled use and the like, can be widely applied in engineering such as petroleum, geologicdrilling and the like, is particularly applicable to construction technology of well drilling and well completion of low-pressure reservoir and exhausted reservoir.

The invention discloses an intelligent anti-theft lock box for an inspection well. The intelligent anti-theft lock box comprises a lock box body, a lock box cover and a lock mechanism, wherein through holes are formed in two corresponding ends of the lock box body, and the lock mechanism is fixed in the lock box body; a monitoring device and a limit lock mechanism are further fixed in the lock box body, the limit lock mechanism is connected with the monitoring device through a cable, and the monitoring device controls a locking action of the lock mechanism through the limit lock mechanism. The lock box for the inspection well is applicable to safety protection of manholes of all sizes, has advantages of corrosion and leakage resistance, and has the dual-mode anti-theft function; basic locking is performed through the lock mechanism; secondary locking is realized through the monitoring device and the limit lock mechanism, and further locking and thief resistance are realized; besides, after power failure, the limit lock mechanism is opened through a key, theft, power failure and other various emergencies are prevented, and accordingly, safety protection is realized while anti-theft and normal opening functions of the lock box for the inspection well are not affected.

The invention relates to a boiler chimney and the method for forming inner-wall protective element. The inventive boiler comprises an outer frame and a liner. Wherein, said liner has a inner-wall protective, which is formed by a polymer silicate solidify layer, a epoxy paint solidify layer while said two layers can be resistant to acid and high temperature, and a strength layer; the polymer silicate solidify layer is fixed on the inner surface of liner; the epoxy paint solidify layer is fixed on the polymer silicate solidify layer; the strength layer is glass fiber grid cloth, which is extended and embedded into the polymer silicate solidify layer, or individually embedded into the polymer silicate solidify layer and the epoxy paint solidify layer to form the inner-wall protective element. Said invention has lower cost, the high temperature resistance, antisepsis property and the anti-leakage property.

The invention discloses an automatic preparation method of a SiCf / SiC composite material flame tube. The preparation method comprises the following steps: preparing an interface layer from SiC fibersby adopting chemical vapor deposition, so as to obtain SiC fibers with a continuous interface layer; performing unidirectional tape laying and filament winding on the SiC fibers with the continuous interface layer according to the fiber volume and fiber orientation obtained by simulation calculation, so as to obtain net size forming preform; performing densifying treatment on the obtained preformby adopting a reactive melt infiltration process and the chemical vapor deposition process; preparing an environmental barrier coating on the surface of the obtained preform; finally, continuously preparing a thermal barrier coating on the surface, thereby fully intelligently obtaining the high-density SiCf / SiC composite material flame tube. The SiCf / SiC composite material flame tube prepared withthe method disclosed by the invention has the characteristics of high temperature resistance and long service life and also has the advantages such as low thermal expansion coefficient, high thermalconductivity, high thermal shock resistance and excellent mechanical property. Meanwhile, the preparation method is high in degree of automation, short in production cycle, low in cost and controllable in quality.

The invention relates to a network security management method and a system thereof. The method comprises the following steps that: encrypted tunnels are established in a safe network card and a safe switch use certificate; the safe network card requires the identity authentication of the safe switch; if the identity is qualified, the safe switch distributes a communication key to the safe network card; otherwise, the failed authentication information is sent back; after the safe network card acquires the key, the local data is started to be encrypted and decrypted; and the generation of the IP protocol communication is realized. The system has a structure which is as follows: a controlled host computer is connected with the safe network card for realizing the function of the identity authentication, the key management, the communication and encryption and the local data encryption; and the safe network card is connected with the safe switch for the strategy management, the configuration management, the user identity authentication of the safe network card and the distribution of the communication key. The method and the system can realize the three-level defense of the information source defense, the information transmitter defense and the information user defense with perfect safety functions and have the characteristics of disclosure prevention and high safety degree.

The invention discloses a ceramic fiber raw material automatic matching, mixing and charging device and a control method, and belongs to the technical field of refractory fiber production equipment. The device and the control method solve the problem in the prior art that the ratio of ceramic fiber raw materials is inaccurate, a lot of dust is generated in manual charging and discharging, the labor intensity is high, the environment and the health of workers are affected, the manufacturing cost is high, the work efficiency is low, the charging and discharging modes of the traditional mixing equipment are not environmentally friendly, and the degree of automation is low. The device comprises a storage device, a weighing device, a mixing device, a packaging device, a transportation device and an electrical control system arranged in sequence from top to bottom. The ceramic fiber raw material automatic matching, mixing and charging device and the control method are high in degree of automation, stability and safety factor, improve the working environment, achieve automatic charging and discharging of raw materials and mechanical lifting of the raw materials, greatly reduce labor intensity of the workers, save manpower and electricity and is short in mixing time, safe, sanitary and environmentally friendly.

The invention provides an air inlet mesh enclosure for an extractor hood. The air inlet mesh enclosure comprises a double-layer structure which is respectively an outer mesh enclosure and an inner mesh enclosure, wherein an outer top surface, an outer-side wall surface and an outer bottom surface are arranged on the outer mesh enclosure, an inner top surface, an inner-side wall surface and an inner bottom surface are arranged on the inner mesh enclosure, the outer-side wall surface of the outer mesh enclosure and the inner-side wall surface of the inner mesh enclosure are distributed in parallel with each other, stripe-shaped air inlets are evenly distributed on the outer-side wall surface, blind window blades are arranged on the inner-side wall surface corresponding to the air inlets, the blind window blades and the air inlets are arranged opposite to each other in the longitudinal direction, an annular cascade is formed by the blind window blades along the cross section which is perpendicular to the normal direction at the inner top surface, and the deflecting direction of the annular cascade-shaped blind window blades is clockwise or anticlockwise. When the air inlet mesh enclosure is used, a tornado effect can be generated, and the suction force of the extractor hood can be greatly improved, so that the a smoke sucking effect is improved; and a cyclone separating effect is generated due to the tornado effect, so that the degree of fat separation is greatly improved, and the air inlet mesh enclosure is small in resistance.

The invention provides an industrial solid waste geopolymer material for building 3D printing and a preparation method thereof, and the industrial solid waste geopolymer material for building 3D printing comprises the following components in parts by weight: 0.1-50 parts of slag, 0.1-40 parts of steel slag, 0.1-30 parts of silica fume, 0.1-30 parts of fly ash, 0.1-10 parts of an alkali activator, 0.1-2.0 parts of a water reducer, 0.1-2.5 parts of a thixotropic agent, 0.1-1.0 part of a thickening water-retaining agent, 0.01-0.2 part of a defoaming agent, and 0.1-2.0 parts of fibers. The industrial solid waste geopolymer material for building 3D printing provided by the invention has the advantages of controllable setting time and better flowability, and can obtain early strength in the printing process to ensure continuous printing; water leakage is prevented, and the interlayer bonding strength is high; and the printing precision is good, and high-precision building components can be printed.

The invention relates to a construction process for a house which is formed integrally, which is characterized in that mainly using steel structure, using metal expansion net as a non-dismantling formwork, using small U-shape steel as a frame to fix as the external walls of the building, controlling the concrete material proportion and finishing the casting of the whole building in one time from ground floor wall columns, second floor plate, second floor wall columns and third floor plate to roof, stair wells and parapet walls. The process of the invention can reduce the construction flow time of the house to minimum, reaches short working period of the whole project, has low cost, long life, large span, environment-friendly, easy casting, beauty shaping, and excellent leakage-proof, strong shock resistance and low affect to construction in cold days.

The technological process of making horizontal polyethylene storage tank integral support includes the following steps: 1. preparing material through mixing linear low-density polyethylene and linear high-density polyethylene in the weight ratio of 100 to 10-20; 2. making tank steel lining; 3. preparing mold; 4. assembling mold and clamping mold; 5. rolling plastic to form the tank through rolling in roller rotation speed of 30-40 rpm, baking at tank wall temperature of 170-250 deg.c for 40-350 min and curing for the plastic to be attached to the surface of the steel lining; and 6. cooling and demolding. The storage tank thus produced has the advantages of once integral formation, no seam, high impact strength, ageing resistance, light weight, acid and alkali resistance, long service life, etc.

The invention relates to a multifunctional gas bead gel coat, which comprises sleeves(10), a collar(20) and a body(30) and is made of airtight fabric(1) and a plurality of air sacs(2) made of the same material as the airtight fabric and arranged at the lower side of the airtight fabric(1) and combined with airtight fabric(1) as a whole body, wherein, the airtight fabric(1) and the air sacs(2) are made of flame retardant adhesive film. The invention is characterized by the anti-wind, anti-rain, anti-snow, anti-hail, anti-stumbling, anti-drowning functions , and especially being suitable for being used as winter clothing, raincoats, learning swimsuits, lifejackets, and ski-wear of children. If a metal film is added at the side next to the human body, an effect of insulation is increased; by using double-sided glue paper, the cutting method of the invention includes: at first, the fabric is fixed on a cutting bed; then the double-sided glue paper is stuck between the upper layer of the fabric and the lower layer of the fabric to form a multilayer; at last, a cutting paperboard sample is stuck at the top layer of the fabric and the fabric is cut according to the sample; tablet fabrics which are cut are blended and welded into the coat by a welding machine. The method has the advantages of simple operation and low cost.

Firstly, the invention provides an organic phase change microcapsule. The phase change microcapsule has a core-shell structure, the core is a capsule core, and the capsule core comprises one or more components of paraffin, n-octadecane and n-tetradecane; the shell is a capsule wall and comprises a silicon dioxide component; the particle size of the phase change microcapsule is 100-200 [mu] m, thephase change enthalpy is 120-200 KJ / Kg, and the phase change temperature is 29-40 DEG C. Secondly, the invention provides an organic phase change microcapsule composite heat dissipation material whichcomprises an aluminum plastic film and the organic phase change microcapsule, and the organic phase change microcapsule is coated with the aluminum plastic film so that the unstable capsule core material can be protected from being eroded by the external environment. Finally, the invention provides a preparation method of the organic phase change microcapsule composite heat dissipation material.The preparation method sequentially comprises the following steps: preparing a water phase, preparing an oil phase, preparing an emulsion, preparing a capsule wall, carrying out spray drying, packaging with the aluminum plastic film and the like, and has the advantages of simplicity and rapidness in operation and suitability for industrial production.

The invention discloses a boring well wall stabilizer which is mainly used for solving the technical problem that storage layer is damaged due to unstable well wall and expansion of clay during the boring process; the well wall stabilizer consists of 20-35 parts of diallyldimethylammonium chloride, 2-5 parts of diallyldimethylammonium chloride-acrylamide polymer, 1-5 parts of non-ionic surfactant OP-10, 1-2 parts of fluoride-bearing alkyl ethoxy ether alcohol non-ionic surfactant, 1-3 parts of cellulose, 1-5 parts of KCl and 45-74 parts of water, according to the weight parts. The stabilizer can stabilize the well wall, greatly reduces the expansion rate of the clay at storage layer and eliminates the damages on the storage layer.

The invention discloses a disposable absorption product with double leakproof isolation boundary, which mainly comprises a liquid-permeability surface layer, a liquid-tight bottom layer and an absorption surface, wherein the two sides of the width direction of the absorption product are provided with leakproof isolation boundaries which are extended along lengthways direction, the leakproof isolation boundary at each side comprises an inner-layer leakproof isolation boundary and an outer-layer leakproof isolation boundary, each leakproof isolation boundary comprises a base part and a free part which is connected with the base part and is positioned at the upper end of the base part, the base parts of the outer-layer leakproof isolation boundaries can be connected with the surface layers or the bottom layers, and the base parts of the inner-layer leakproof isolation boundaries are connected with the surface layers. The inner-layer leakproof isolation boundaries and the outer-layer leakproof isolation boundaries are formed into a whole, the outer-layer leakproof isolation boundaries have completely-overlapped material parts, and the inner-layer leakproof isolation boundaries have partially-overlapped material parts. The base parts of the inner-layer leakproof isolation boundaries are distant from the base parts of the outer-layer leakproof isolation boundaries. The elastic expansion range of elastic expansion parts at the free parts of the leakproof isolation boundaries are adjusted, so that front leakproof isolation boundaries and back leakproof isolation boundaries are formed into an opening of a bag facing to a lengthways middle opening, and front leakage and back leakage can be reduced. The product also uses an external elastic waistline and left and right elastic magnetic paste.

The invention discloses a method for constructing poured airtight walls of coal mines. The method includes manufacturing flexible molds and suspending the flexible molds in dug grooves with corresponding sizes by expansion pipes; allowing anchor rods on two sides of each dug groove to penetrate preserved anchor rod holes in the corresponding flexible mold; carrying out pouring twice, to be more specific, injecting inorganic solidifying materials into the flexible molds by concrete pump trucks to form solidified filling bodies at first, injecting expansion roof contact materials into the molds by grouting machines to form expansion filling bodies after the inorganic solidifying materials are completely coagulated, carrying out pump pouring on wall bodies and then forming the airtight walls with reinforced concrete structures by the walls and the anchor rods. The method has the advantages that the different materials are injected into the flexible molds twice, accordingly, the strength and roof contact effects of airtight wall bodies can be guaranteed, and the wall bodies prepared by the aid of the method are simple in structure; each airtight wall only comprises the single corresponding wall body and is mechanically constructed, accordingly, the costs of the airtight walls can be reduced, and the efficiency can be improved.

The invention discloses a combined pressure-resistant pipeline inspecting well barrel. The combined pressure-resistant pipeline inspecting well barrel comprises N combined pieces and connecting pieces, wherein the outer-circle arc surface of the combined pieces are provided with horizontal reinforcing ribs and longitudinal reinforcing ribs which are intersected mutually; the left sides and the right sides of the combined piece are provided with connecting edges; the longitudinal section of each combined piece consists of a wellhead section, a well cone section and a well seat section; and all the combined pieces are fixedly connected into a barrel-shaped body. The combined pressure-resistant pipeline inspecting well barrel disclosed by the invention has the advantages that due to the combined structure, the processibility for mold-pressing forming of a product is optimized, the requirements for mold-pressing equipment and the structure and volume of a mold are reduced, and the forming efficiency and qualification rate of the product are improved; since a new high-temperature mold-pressing composite forming process of resin glass reinforced plastic is adopted, the ageing resistance, water resistance and corrosion resistance of the product are guaranteed; and since the longitudinal reinforcing ribs, the horizontal reinforcing ribs and two side surface connecting edges are arranged, the compression capability of the product can be improved, the production, carrying and installation of the product are simplified, the comprehensive cost is reduced, and the service life is prolonged.

The invention discloses a combination valve with the speed governing, reversing and overflow functions, and relates to the technical field of combination valves. The combination valve with the speed governing, reversing and overflow functions comprises a pressure reducing valve, a throttle valve, a safety valve, a manual reversing valve and a main valve body, wherein hydraulic oil enters the pressure reducing valve through an oil inlet in the main valve body, a speed governing valve with the throttle governing function is formed by the pressure reducing valve and the throttle valve, the oil outlet of the throttle valve is connected with the oil inlet of the manual reversing valve, and the manual reversing valve is connected with an outside executive component. When the pressure of the executive component is overhigh, the safety valve is opened to unload, and the direction of oil inlet and outlet of the executive component can be changed by changing the oil feed position of the manual reversing valve; because the structure of the main valve body is designed, and the pressure reducing valve, the throttle valve and the safety valve are each of a valve element and valve sleeve type structure, manufacturing and installation are convenient; and the special structural design that a sliding rod, a throttle valve end cover and an adjusting handle are arranged from inside to outside is adopted, oil is prevented from leaking, and therefore, the combination valve with the speed governing, reversing and overflow functions has the advantages of being capable of preventing leakage, simple in oil-way structure, compact in structure, safe, reliable, convenient to manufacture and the like.

The invention discloses a self-heat-preservation prefabricated outer wall board with a frame net rack. The prefabricated outer wall board comprises a heat-preservation sandwich board, steel wire net sheets and inclined inserting bars, wherein a space steel wire net rack is formed by the upper and lower steel wire net sheets and the heat-preservation sandwich board is arranged in the space steel wire net rack; the upper and lower steel wire net sheets are arranged at the peripheral edges along with the heat-preservation sandwich board, are bent inwards by two rows and are additionally provided with tie bars to form a frame steel bar cage; and lightweight concrete wall bodies are arranged on the upper and lower surfaces, and the peripheries of the space steel wire net rack. According to the self-heat-preservation prefabricated outer wall board, industrial prefabrication can be realized and the self weight is light; the periphery can be in flexible connection with a main body so that the anti-seismic effect is better; and meanwhile, the self-heat-preservation prefabricated outer wall board has the characteristics of rapid construction speed, low construction cost, energy conservation and environmental friendliness, safety and reliability and good heat preservation effect.

The invention relates to a four-layer composite water-absorbing sanitary material and a production method thereof and belongs to the field of nonwoven fabric production. The method specially includes: producing 100% viscose or 100% cotton fibers 30-40mm in length into a short fiber layer, producing polyester and viscose short fibers into a blended short fiber layer according to the proportion of 5:5, compositing a pulp layer produced by fluff pulp fibers with the short fiber layer and the blended short fiber layer, and performing drying, PE membrane spraying and winding to obtain the four-layer composite water-absorbing sanitary material, wherein the pulp layer is solidified between the short fiber layer and the blended short fiber layer. The production method has the advantages that the four material layers are composited online, and two online high-speed carding machines are used to form different-fiber-material and different-performance fiber meshes; the production method is simple in process, suitable for large-scale production and promising in application prospect, and the produced sanitary material is high in water absorption, capable of preventing leakage, soft, comfortable, low in cost and the like.

The invention discloses a full-automatic water-saving drainage and irrigation seepage-proofing canal cast-in-situ forming machine and relates to the field of mechanical drainage and irrigation devices. A propeller (2) is arranged at the left end of a mechanical body (1) of the machine, a trapezoid inner forming die (3) is arranged at the left end of the propeller (2), a plurality of sliding pipe rods (6) are arranged inside the mechanical body (1), a thrust hydraulic oil cylinder (4) is connected with the propeller (2), an oil cylinder supporting base (5) is arranged at the right end of the thrust hydraulic oil cylinder (4), a feeding hopper (10) is arranged on the left side of a positioning plate at the rear end of the propeller (2), a hydraulic assembly (7) is arranged on one side of the upper end of the mechanical body (1), an electric control cabinet (8) is arranged above the hydraulic assembly (7), and a channel scraper knife (9) is arranged at the right most end of the mechanical body (1). The machine can achieve the long distance of trapezoid channel concrete members and has the advantages of being uniform in thin wall thickness, high in strength, capable of preventing leakage, attractive in appearance and the like.

The invention discloses an atomizer and an electronic cigarette which can prevent tar leakage caused by that a tar suction component keeps on getting contact with tar storage space and absorbs oversaturated tobacco tar. The implementation scheme adopted by the invention is characterized in that the atomizer applied to the electronic cigarette comprises a shell, wherein a tar storage chamber and an atomization assembly are disposed inside the shell; the atomization assembly comprises a base body as well as a tar suction part and a heating component disposed inside the base body; a tar inlet is formed in the base body; a tar outlet matched with the tar inlet is formed in the inner side wall of the tar storage chamber; a blocking part is also disposed between the inner side wall of the tar storage chamber and the base body, and a through hole is formed in the blocking part; and a movable part is disposed on one end of the shell, the movable part can be rotated relative to the shell so as to drive rotation of the blocking part and communicate the tar inlet and the tar outlet via the through hole, or the side wall of the blocking part can block communication between the tar inlet and the tar outlet.

The invention relates to a preparation method of functional aqueous polyurethane coating. The preparation method includes: adding polytetramethylene glycol into a four-port flask, and adding isophorone diisocyanate to obtain prepolymer; adding 1, 4-butanediol into the prepolymer, and adding N-methyl pyrrolidinone containing dimethylolpropionic acid to obtain a chain extension system; dripping methacrylic acid beta-hydroxyethyl acrylate, adding triethylamine, and stirring at high speed for dispersion until the emulsion is dispersed completely to obtain aqueous polyurethane emulsion; using the aqueous polyurethane emulsion as the raw material and ammonium perfluorocaprylate and lauryl sodium sulfate as the emulsifier, dripping methyl methacrylate and dodecafluoroheptyl methacrylate, using the redox system of potassium persulfate and sodium hydrogen sulfite as the initiator to perform emulsion polymerization so as to obtain fluorinated polyurethane-acrylate emulsion, namely the functional aqueous polyurethane coating. The functional aqueous polyurethane coating is excellent in waterproof performance, leakage resistance, adhering performance, corrosion resistance, pressure resistance and the like.

The invention discloses a radial flow valve element underground pressure regulating device. The radial flow valve element underground pressure regulating device comprises a diffusion tower and a pressure regulating device arranged underground. A base of the diffusion tower is buried underground, an integrated electronic instrument box is arranged at the overground position of the diffusion tower, and a pressure recorder and pressure sensors are mounted in the integrated electronic instrument box. The pressure regulating device comprises a pressure regulating valve body, a pressure regulating instrument box and a box cover, the pressure regulating valve body is arranged on the lower portion of the pressure regulating instrument box, and the pressure regulating instrument box comprises a connecting bottom disc, an inlet pressure meter, a differential pressure gauge, a director, a diffusion valve, a stop valve drive device, a drain valve and an outlet pressure meter, wherein the inlet pressure meter, the differential pressure gauge, the director, the diffusion valve, the stop valve drive device, the drain valve and the outlet pressure meter are mounted on the connecting bottom disc. The pressure regulating valve body comprises a pressure regulating valve element, an inlet valve, an inlet pipe, an outlet pipe and an outlet valve. The radial flow valve element underground pressure regulating device aims at achieving the purposes of being compact in structure, safe and reliable, has the functions of gas filtering, overpressure diffusion, overpressure cutting off and pressure regulating, can also achieve data external display and remote transmission, and overcomes the defect that an underground pressure regulating device is inconvenient to patrol.

The invention provides a sand-clustering sound absorbing device and a manufacturing method thereof. The sand-clustering sound absorbing device is formed by a sand-clustering composition through die pressing; the sand-clustering composition comprises a base material, a binder, a curing agent and a lubricant, wherein, to 100% of the base material by mass, the addition amount of the binder is 1-5%, and preferably 2-4%, the addition amount of the curing agent is 0.05-0.5%, preferably 0.1-0.4%, and the addition amount of the lubricant is 0.2-0.5%, and preferably 0.3-0.4%. By regulating formulationproportion of the sand-clustering composition, surface structure of the sand-clustering composition can be regulated, and the sand-clustering sound absorbing device manufactured by the sand-clusteringcomposition has sound absorption and air permeability, and also has the advantages of seepage resistance and high-temperature resistance.

The invention provides a gas fumigation device, a fumigation method and application. The device comprises a fumigation chamber, a gas inlet device and a gas discharge device, wherein the fumigation chamber is provided with an inlet for a sample to be fumigated, a vacuum gauge, a gas vent, a stainless steel support, a stainless steel clapboard and a circulating fan; the inlet for the sample to be fumigated is located on a front wall of the fumigation chamber; a fumigation chamber door is arranged on the inlet for the sample to be fumigated; the stainless steel support is symmetrically fixed toa left side wall and a right side wall of the fumigation chamber so as to be used for supporting the stainless steel clapboard; the stainless steel clapboard is used for holding the sample to be fumigated and is provided with ventilated holes; the circulating fan is fixed to the center of the bottom part of the fumigation chamber and is provided with a switch for controlling the circulating fan torun; the switch is located on the outer part of the fumigation chamber; the gas vent is arranged on a side wall of the fumigation chamber and is provided with a three-way valve; the gas inlet deviceand the gas discharge device are located on the outer part of the device and are connected with the three-way valve.

The invention discloses a construction method for water resistance of a doorway of a restroom. The construction method comprises the steps of base-layer clearing, leveling-layer construction, waterproof base-layer clearing, waterproof base-layer primer coating, detail additional-layer construction, polyurethane waterproof coating construction, restroom concrete ground pouring and the like. The construction method for water resistance of the doorway of the restroom has the advantages that compared with the prior art, the waterproof measures of the doorway of the restroom are reinforced, the double effects of water resistance and seepage prevention are achieved, the quality difficult problem existing in the technical field regarding waterproof construction of the doorway of the restroom all the time is well solved, and the very good practicability is achieved.

The present invention relates to new rubber materials and tires, particularly to a new SRC rubber material and a manufacturing process thereof, and a sticking-resistant and anti-explosion tire. The new SRC rubber material comprises, by weight, 30-60% of a polymer rubber elastomer, 25-55% of a tackifier, 5-15% of a phase solvent, 0.5-1% of an anti-aging agent, 1-4% of a filler, and 0.5-6% of an active agent. The manufacturing process comprises: mixing the polymer rubber elastomer, the tackifier, the phase solvent, the anti-aging agent, the filler and the active agent for 12-15 h at a temperature of 200-230 DEG C according to the technical ratio. According to the sticking-resistant and anti-explosion tire, the new SRC rubber material is sprayed on the inner wall of the tire. According to the present invention, the new SRC rubber material is coated on the inner wall of the tire, can not shed within the use temperature, and is tightly adhered on the inner wall of the tire, such that air leakage due to being sticking and tire burst can be prevented.

An electric weather shed comprises at least one ceiling installed on a semi-open roof; each ceiling comprises a track mechanism and a baffle plate mechanism which can completely cover an open portion; each track mechanism comprises a left longitudinal track and a right longitudinal track which are symmetrical and parallel to each other; each left longitudinal track and the corresponding right longitudinal track are respectively installed on longitudinal supporting frames at left and right sides of the corresponding open portion and extend to an upper side of an enclosed portion; each baffle plate mechanism is slidably installed on the corresponding track mechanism via a walking guiding mechanism; and each baffle plate mechanism can move or stop back and forth over the corresponding open portion and over the enclosed portion along the corresponding track mechanism. According to the apparatus, residents can control each baffle plate mechanism to move to any position over the corresponding open portion or the enclosed portion to shield or enjoy sunlight, rain, dew and ice according to self demand, the electric weather shed is simple and rapid in operation and has heat insulation and leakproof effects, and high quality lives of the residents are substantially satisfied.

The invention provides a novel independent portable type steam cooker. The novel independent portable type steam cooker is characterized by comprising a steam cooker base (1), a steam cooker body (2), a steam cooker spray nozzle upper seat (3), a steam cooker spray nozzle lower seat (4), a gas inlet pipe (5), a steam output pipe (6), a water level controller (7), a steam generator (8), heat-emitting bodies (9), a water drainage joint (10) and a steam switch (11), the steam cooker body (2) is installed on the steam cooker base (1) and connected with the steam cooker spray nozzle upper seat (3) in a matched mode through a spray nozzle device, the steam cooker spray nozzle lower seat (4) is connected with the spray nozzle upper seat (3), and the steam cooker body, the steam cooker base and the steam generator can be disassembled. The novel independent portable type steam cooker has the advantages of being leakproof, uniform in steam generation, convenient to detach and wash, capable of adding water automatically, good in sealing performance, low in noise and the like.