43results about How to "Short spray distance" patented technology

The invention discloses a flameless combustion heat accumulating type flat flame combustion nozzle. A combustion nozzle body is internally provided with an air or smoke gas passage, a porous heat accumulator, a combustion cavity, a gas pipeline and an ignition device, wherein the tail end of the air or smoke gas passage is provided with a tangential air inlet duct positioned along the tangential direction of the circumferential combustion cavity, and the air or smoke gas passage is connected with the combustion cavity through the tangential air inlet duct; the tail end of the gas pipeline is provided with a flame combustion gas pipe and a flameless combustion gas pipe which are parallel and respectively controlled by a flame combustion control valve and a flameless combustion control valve, and the aperture of a flameless combustion gas spray orifice positioned on the tail end of the flameless combustion gas pipe is smaller than that of a flame combustion gas spray orifice positioned on the tail end of the flame combustion gas pipe. The flameless combustion heat accumulating type flat flame combustion nozzle has high energy utilization efficiency and good furnace temperature uniformity and can greatly reduce the discharge amount of NOX; fuel is sprayed at high speed through the necking spray orifice, thereby effectively controlling the flame temperature and being beneficial tothe sufficient combustion of the fuel; and in addition, the flame sprays into a furnace cavity with a very short spraying distance so as not to spray to parts inside the furnace cavity.

The invention discloses an open-width knitted fabric pre-shrinking machine, comprising an open-width cloth-feeding device, a mechanical weft-straightening device, a steam conditioning and stentering device, a rubber blanket pre-shrinking device and an open-width plaiting device, wherein the front end of the steam conditioning and stentering device is provided with an overfeed pinning device; and a felt finishing device is arranged between the rubber blanket pre-shrinking device. The open-width knitted fabric pre-shrinking machine comprises the felt finishing device; and the fabric is finished by the felt finishing device after passing through the rubber blanket pre-shrinking device, thereby guaranteeing the fabric to be dried and flatten, further improving handfeel of the fabric and increasing glossiness of the fabric surface. Meanwhile, shrinkage rate of the fabric can be more stable, so that the open-width knitted fabric with flat cloth surface, good surface glossiness, good handfeel and stable shrinkage rate can be processed.

The present invention is one integrated moment exchanger for treating tail gas of motor vehicle. The integrated moment exchanger consists of 13 stages of main and auxiliary integrated exchangers connected parallelly, and each stage of exchanger has jetting reception tubes and diffusion tubes in the same number. The present invention can eliminate tail gas pollution radically, and may be used inreplacing available exhaust silencer system in motor vehicle.

The invention discloses a flotation machine hollow shaft dredger. The hollow shaft dredger comprises a rubber hose, an expansion rubber bag, a rubber valve and a washing mechanism, wherein a fluid inlet and a fluid outlet are formed in the expansion rubber bag, the rubber hose is connected to the fluid inlet, and the washing mechanism is connected to the fluid outlet; and the rubber valve is arranged in the expansion rubber bag and is located above the fluid outlet. According to the dredger, on the premise of normal production of a workshop, a hollow shaft can be dredged without disassemblinga flotation machine, so that the labor force required by dredging work is greatly reduced, the operation rate of equipment is improved, and the continuous and stable production is guaranteed.

The invention belongs to a dry powder and foam dual-purpose fire extinguishing device which comprises a trolley (1). A gas cylinder and barrel fixing mechanism (2) is installed inside the trolley (1); a gas cylinder (10) is fixed to the right side of the interior of the gas cylinder and barrel fixing mechanism (2) through a gas cylinder fixing belt (11); a gas cylinder valve (9) is installed at the upper end of the gas cylinder (10); a pressure reducer (8) is installed on the gas cylinder valve (9); and a spray gun (7) is installed at the top end of the trolley (1) through a spraying pipe (6). The dry powder and foam dual-purpose fire extinguishing device is characterized in that a barrel and barrel cylinder valve mechanism (3) is installed inside the gas cylinder and barrel fixing mechanism (2); and an electronic control system (4) and a pneumatic control system (5) are installed on the upper portion of the barrel and barrel cylinder valve mechanism (3). A dry powder barrel and a foam liquid barrel contain dry powder medicament and foam medicament correspondingly, and the fire can be extinguished by selecting corresponding medicament according to the field situations; and the spraying time is long, operation is easy and convenient, and the fire extinguishing effect is good.

The invention belongs to the field of smoke preventing and dust falling in fire fighting, and particularly relates to a water mist curtain spray head. The water mist curtain spray head comprises a first nozzle which is downwards arranged in the spray direction; a transition part is arranged between the first nozzle and an outer water pipe and is used for communicating the first nozzle with the outer water pipe. The water mist curtain spray head further comprises at least one second nozzle which is used for horizontally spraying to the left and/or the right; and the second nozzle is arranged by communicating with the outer water pipe through the transition part. By adopting the water mist curtain spray head, the problem that conventional structure brings a dead angle in spray can be effectively solved, and another problem that conventional single-nozzle structure causes fast sinking of the upper mist layer to influence personal safety can be avoided; and the water mist curtain spray head is high in safety, and reliable and stable in work.

The invention provides a graded direct-reading method and device for the surface hydrophobicity of a composite insulating material. The method comprises the following steps: adjusting the distance from a spray head to the surface of an insulating material to be a standard distance; spraying quantified deionized water to the surface of the insulating material in a certain speed and angle; photographing a part of the material in the water spraying range; carrying out digital processing on a photographed image, so as to obtain a digital image including the number of water drops and the coverage area, and making comparison on the acquired digital image and a standard image of each hydrophobic grade; and displaying the grading result according to a comparison result. The device comprises a laser spacing device, a pressurizing injection unit, an image photographing unit, an image processing unit, an image analysis unit and a hydrophobic grade display unit. According to the method and the device, by quantitatively controlling the water yield, water jetting angle and water jetting height, the graded and accurate measurement of the surface hydrophobicity of the insulating material is realized.

The invention provides an injector and a vehicle so as to solve the problem that in the prior art, methanol fuel cannot be fully injected into a combustion chamber. The injector comprises a base, a nozzle, a first injection pipe and a second injection pipe, wherein the base is provided with a first mounting hole and a second mounting hole; the nozzle is connected with the base and communicated with the first mounting hole and the second mounting hole; the first injection pipe is arranged in the first mounting hole, an outlet of the first injection pipe is communicated with the nozzle, and the first injection pipe is used for conveying methanol to the nozzle; and the second injection pipe is arranged in the second mounting hole, an outlet of the second injection pipe is communicated with the nozzle, and the second injection pipe is used for conveying gasoline to the nozzle. According to the injector, two kinds of fuel injectors are combined into a whole, the first injection pipe and the second injection pipe are connected to the combustion chamber through the base and the nozzle, two kinds of fuel can be injected at the same position, the methanol injection distance is the same as the gasoline injection distance during injection, the methanol injection distance is shortened, and the methanol can be fully injected into the combustion chamber.

The invention discloses a shelf for a dish-washing machine, and the shelf comprises a conduit for introducing washing liquid; the conduit is connected with a spraying tube through a rotating member, so that tableware is sprayed and washed by using the washing liquid; and the rotating member can be rotated relative to the spraying tube and/or the conduit, so as to perform on/off operation on the communication between the spraying tube and the conduit by using rotation of the rotating member. The invention further discloses the dish-washing machine, which can strengthen washing of the interior of the deeper tableware such as water cups, feeding bottles and the like, so that the washing effect is more obvious, and the requirements of users are better met.

The invention relates to a car part, particularly to a windshield wiper. The windshield wiper comprises a windshield wiper rod and a windshield wiper blade, wherein the top part of the windshield wiper rod is fixedly connected with the middle part of the windshield wiper blade, a water spraying pipe is fixedly arranged on the outer wall of the windshield wiper rod, and a through cavity penetrating through both ends of the windshield wiper rod is formed in the windshield wiper rod. The windshield wiper also comprises a water taking pipe which is used for supplying water sources for the water spraying pipe and the through cavity, and the water spraying pipe, the through cavity and the water taking pipe are connected by a three-way valve; and an auxiliary water spraying pipe of which both ends are blocked is fixedly arranged on the outer wall of the windshield wiper blade, the middle part of the auxiliary water spraying pipe is fixedly connected with one end, away from a flexible water pipe, of the through cavity by a water pipe, the water pipe is communicated with the inner part of the auxiliary water spraying pipe, and a plurality of through holes are formed in one side, close to the windshield wiper blade, of the auxiliary water spraying pipe . The windshield wiper has the beneficial effect that the use ratio of the water in a water tank of a car is increased.

The invention discloses an in-pipe pouring device of a concrete water pipe for water supply and drainage. The in-pipe pouring device structurally comprises a telescopic pipe, a connecting platform, apouring base body, a laminating ring, a cylinder, a circular expansion connector and a semi-arc inner telescopic rod. The in-pipe pouring device has the beneficial effects that the telescopic end of the cylinder is connected with the circular expansion connector and the laminating ring, the two parts are matched so that the laminating ring is firmly attached to the pipe inner wall, and the stability of the pouring base body is improved; a plurality of injection needles are installed in a concrete injection pipe and are inserted into concrete, an air entraining agent in a storage chamber is injected into the concrete through nozzles on the injection needles, and the fluidity of the concrete is improved; and the concrete is subjected to diameter reduction by an arc petal, a pressure plate drives the nozzles to straightly extend forwards, the injection distance between the nozzles and gaps can be shortened, and the injection efficiency can be improved; and through the change of the pipe diameter, the injection flow velocity of the nozzles can be increased, so that the concrete can be injected into the narrow gaps, the gaps can be filled with the concrete, and cavities can be prevented.

The invention relates to a windscreen wiper for an automobile. The windscreen wiper comprises a windscreen wiper rod and a windscreen wiper blade, wherein the top of the windscreen wiper rod is fixedly connected with the middle part of the windscreen wiper blade; a through cavity which penetrates through both ends of the windscreen wiper rod is formed in the windscreen wiper rod; one end, away from the windscreen wiper blade, of the windscreen wiper rod is fixedly connected with a water taking pipe which is communicated with the through cavity, and the other end is fixedly connected with a connecting pipe; and a spray pipe with openings in both ends is fixedly arranged on the outer wall of the windscreen wiper blade, and a water outlet of the connecting pipe is connected to the middle part of the spray pipe and is communicated with the inner part of the spray pipe. The windscreen wiper disclosed by the invention has the beneficial effect that the utilization of water in a water tank of the automobile is improved.

The invention discloses a flue gas treatment device for environmental protection engineering. The flue gas treatment device comprises a shell, and further comprises a dust removal mechanism and a desulfurization mechanism. The dust removal mechanism is specifically composed of a cross rod, a positive electrode plate, a negative electrode plate, a rotating rod, sliding blocks, a motor, an eccentric block, a boosting transformer and a rectifier. The cross rod is welded to the inner wall of the shel. One side of the surface of the cross rod is rotatably connected with the positive electrode plate in a matched mode, and one side of the surface of the cross rod is rotatably connected with the negative electrode plate in a matched mode. The surfaces of the positive electrode plate and the negative electrode plate are fixedly connected with the sliding blocks which are made of an insulating material. The inner wall of the shell is rotatably connected with the rotating rod in a matched mode, and the eccentric block is welded to the surface of the rotating rod. The motor is installed on the inner wall of the shell. The boosting transformer is installed on one side of the inner wall of the shell, and the rectifier is installed on one side of the inner wall of the shell. The whole device can achieve automatic filtering, the filtering cost is low, the overall filtering efficiency is high, and the device can be suitable for filtering flue gas of factories in the manufacturing industry on a large scale.

The invention discloses a dish-washing machine shelf comprising a conduit, and the conduit communicates with at least one spraying pipe so as to guide washing liquid to the spraying pipe through the conduit; and the spraying pipe is provided with nozzles, the relative position between the nozzles and the spraying pipe can be adjusted, and the nozzles are provided with liquid spraying holes, so that the washing liquid is sprayed into an inner container of the dish-washing machine along different cross sections through the adjustable and reversible liquid spraying holes. The invention further discloses a dish-washing machine, the shelf is installed on the dish-washing machine, the nozzles arranged at the end of the spraying pipe are used for directly flushing and washing the interiors of deep tableware such as water cups and feeding bottles, and the washing effect is more obvious. Meanwhile, the spraying pipe arranged on the shelf also has the effect of supporting the tableware, so thatsupporting pieces do not need to be independently arranged on the shelf, and the requirements of users are better met.

The invention relates to an automobile part, particularly to a windscreen wiper for cleaning an automobile windshield. The windscreen wiper comprises a windscreen wiper rod and a windscreen wiper blade, wherein the top of the windscreen wiper rod is fixedly connected with the middle of the windscreen wiper blade, a water spray pipe is fixedly arranged along the outer wall of the windscreen wiper rod, one end of the water spray pipe, which is far away from the windscreen wiper blade, is fixedly connected with a flexible water pipe, one end of the water spray pipe, which is near the windscreen wiper blade, is sealed and blocked, and a plurality of through holes are formed in a section, near the windscreen wiper blade, of the water spray pipe. The windscreen wiper has the beneficial effect of improving the utilization rate of water in a water tank of the automobile.

The invention discloses a cleaning device, in particular to a device and a method for removing barnacles on a ship body, which are technically characterized by comprising a shell and a rotating shaft for driving the shell to rotate, and further comprising a removing mechanism which rotates along with the shell and peels barnacles on the surface of the ship body by means of ultrasonic oscillation, the scraping knife rotates along with the shell and is used for obliquely cutting the bonding surface of the barnacle and the ship body, and the ultrasonic assembly is fixedly connected with the scraping knife and transmits ultrasonic mechanical oscillation to the scraping knife. The ultrasonic assembly comprises an ultrasonic generator used for emitting alternating current signals and a transducer used for converting the alternating current signals into ultrasonic vibration, and further comprises an amplitude-change pole used for enhancing the ultrasonic vibration amplitude. By means of the barnacle cleaning device, barnacles on the surface of the ship body can be cleaned only by overcoming small resistance.