297results about How to "Won't leak" patented technology

The invention provides a water seepage detection device for road pavement asphalt construction, and relates to the technical field of asphalt pavement detection. An auxiliary part is placed on the bottom face of the detection body, a switch structural part is installed on the top face of the detection body, a supporting rod is fixedly welded to the top face of the detection body, a base table is fixedly connected to the top face of the supporting rod, a metering cylinder is fixedly clamped to the top face of the base table, and a balancing weight is arranged at the top of the detection body. A blocking plate in the switch structural member is clamped in a metering cylinder, the angle of the blocking plate can be judged by rotating an indicating plate, and after detection is completed, a pressurizing plate can be driven to move towards the two sides by rotating the indicating plate reversely, so that holes in the inner wall of a drainage pipe can also be used for drainage, the drainage speed is increased, and the problem that the blocking angle of a valve to the drainage pipe is difficult to judge is solved. And the drainage speed cannot be increased when the detection liquid in the drainage pipe is discharged after the detection is completed.

The utility model belongs to the field of oil nozzles, particularly relates to an oil nozzle for a DelfF DFI2.5 type oil injector, and aims to solve the problem that most existing oil nozzles are only convenient to inject oil in one direction and inconvenient to inject oil in the peripheral range in the oil injection process, so that the application range is relatively single, the following scheme is provided: the oil nozzle comprises an oil injector body, the bottom of the fuel injector body is communicated with a fuel injection nozzle body; the first spraying assembly is arranged on the oil nozzle body and used for spraying in the peripheral range; and the second spraying assembly is arranged on the oil nozzle body and used for spraying the range in front of the nozzle. When the fuel injection device is used, fuel can be injected out in the form of a peripheral range, the contact area of the fuel and air is increased, the uniformity of mixed gas is improved, the effect of conveniently injecting the fuel into the peripheral range is achieved, the application range is wide, and the applicability is improved.

The utility model discloses a protective device for a joint of a gas pipeline. Comprising a pipe sleeve, an upper fixing screw sleeve spirally connected to the upper portion of the pipe sleeve, a lower fixing screw sleeve spirally connected to the lower portion of the pipe sleeve, a connecting plate attached to the inner side of the opening side of the pipe sleeve, a connecting mechanism arranged between the pipe sleeve and the connecting plate, and a protection mechanism fixedly connected to the inner wall of the connecting plate. In the protective device for the gas pipeline joint, the pipe sleeve is coated with epoxy resin and cyclohexanone, and the waterproof surface layer and the flame-retardant surface layer are arranged, so that the service life of the protective device is prolonged, and the protective device has higher contractility, creep resistance, aging resistance, impact resistance, heat resistance and the like, and has good chemical corrosion resistance, water soaking resistance, water vapor permeation resistance and the like; the service life is the same as that of the pipeline.

A multi-stage sealing structure of a liquid composite joint filling opening comprises a first-stage sealing structure and a second-stage sealing structure, and the first-stage sealing structure comprises a steel ball in a high-pressure injection flow channel; the secondary sealing structure comprises a plug bolt locked at the filling port, the plug bolt comprises a sealing end and a locking end, the sealing end is provided with a metal gasket and an O-shaped ring, the locking end is provided with an external thread, the filling port comprises a cavity end and a threaded end, the cavity end is directly communicated with the runner, and the threaded end is provided with an internal thread matched with the external thread of the locking end. The steel ball injected into the runner at high pressure is used as a first-stage sealing structure, the plug bolt is provided with the metal gasket and the O-shaped ring and then is locked to the filling opening to serve as a second-stage sealing structure, the two-stage sealing structure can independently play a sealing role, when one sealing structure fails, the other sealing structure can still play a role, and the sealing effect is good. The sealing effect is ensured.

The utility model relates to a liquid flow metering device, subassembly and system.The liquid flow metering device comprises a measuring chamber, a floater subassembly, a sleeve and an electrical subassembly, a measuring chamber body is hermetically connected with a liquid inlet pipeline and a liquid outlet pipeline, the liquid inlet pipeline extends into the measuring chamber body, and the liquid outlet pipeline extends into the measuring chamber body; a liquid outlet at the tail end faces upwards; the floater assembly comprises a floater and a floater connecting rod integrally connected with the floater, the floater is arranged at a liquid outlet in the tail end of the liquid inlet pipeline, and the tail end of the floater connecting rod is connected with the detection part; the lower end of the sleeve is communicated with the measuring cavity body, the tail end of the floater connecting rod extends into a guide channel in the sleeve from the lower end of the sleeve, and a position detection device is arranged in the upper end of the sleeve; the electrical assembly comprises a shell and an electrical module, and the electrical module receives a floater height detection signal sensed by the position detection device. The metering device provided by the embodiment of the utility model is low in cost and accurate in metering.

The pelletizer comprises a machine base, a motor is installed on one side of the machine base, the output end of the motor is connected with a rotating shaft through a coupler, the rotating shaft is rotationally connected with the machine base through a bearing, one end of the rotating shaft is connected with a pelletizing roller, a fixing rod is fixedly installed on the other side of the machine base, and the fixing rod is fixedly connected with the output end of the motor. One end of the fixing rod extends into the inner wall of the granulation roller, the fixing rod is movably connected with the inner wall of the granulation roller through a bearing, forming grooves are evenly formed in the outer wall of the granulation roller, a feeding groove is formed in the top of the machine base, a discharging groove is formed in the bottom of the machine base, and a push block is slidably installed on the inner wall of the discharging groove. A sliding rod is fixedly installed on one side of the pushing block, the outer wall of the sliding rod is slidably connected with a connecting rod in a sleeving mode, the granulation roller is of a hollow structure, guide holes are evenly formed in the inner wall of the granulation roller, and the problem that the current practicability is poor is solved.

The utility model discloses a connection structure of a pump shaft and an impeller and a centrifugal pump, a hub of the impeller is configured in a way that the end part matched with an inlet runner of the impeller is closed, the other end part is open, and a shaft groove used for being connected and matched with the pump shaft is formed, so that when the pump shaft is arranged in the shaft groove, the pump shaft cannot penetrate through the hub; meanwhile, the connecting end of the pump shaft is arranged in the shaft groove and is connected with the shaft groove through a fixed connecting piece, so that a connecting structure of the pump shaft and the impeller is integrally arranged in the shaft groove, an impeller nut cannot be formed in an inlet runner of the impeller, and the inlet runner structure of the impeller cannot be damaged; the end portion, matched with the inlet of the impeller, of the hub is closed, the hub and the rear cover plate can be connected and matched to form a flow channel partition plate in an inlet flow channel of the impeller according to the hydraulic performance requirement of the impeller, meanwhile, liquid in the impeller cannot leak into a shaft groove, and therefore the hydraulic performance of the impeller is improved.

The invention discloses an end face flange sealing structure and an oil-immersed transformer, and belongs to the technical field of electrical equipment sealing. The sealing device comprises a first flange, a second flange, an elastic sealing ring and a plurality of threaded connecting pieces, the first flange and the second flange elastically clamp the elastic sealing ring, and a first gap is reserved between the first flange and the second flange; the threaded connecting piece is arranged on the first flange in a penetrating mode from top to bottom, the threaded connecting piece is connected with the first flange in a clamped mode, and the threaded connecting piece is connected with the first flange in a self-rotating mode; the threaded connecting piece is in threaded connection with the second flange, a second gap is reserved between the threaded connection end of the threaded connecting piece and the bottom of the threaded connection hole of the second flange, and the second gap is not smaller than the first gap; the threaded connection of the threaded connecting piece adjusts the size of the first gap so that the first flange and the second flange can clamp or loosen the elastic sealing ring. The first flange and the second flange can extrude the elastic sealing ring which is deformed permanently again to compensate for an aged damaged part, the resealing effect is good, and the maintenance difficulty is low.

The invention relates to the technical field of gas separation, in particular to a pig feed fermentation preparation method with a deodorization effect, through the arrangement of an activated carbon cylinder of a cylindrical structure and granular filler in the activated carbon cylinder, in cooperation with synchronous rotation of a rotating frame, the contact area and the contact frequency of gas and activated carbon are remarkably increased, the deodorization efficiency is improved, and the deodorization effect is improved. Through cooperative use of the bearing frame and the rotating frame, after the adsorption capacity of activated carbon is reduced, the activated carbon cylinders can be automatically moved to the top from the rotating frame and naturally fall onto the bearing frame through gravity, replacement of the activated carbon cylinders can be achieved without manual intervention, and in this way, the tedious manual disassembly process in the prior art is avoided; and the maintenance efficiency of the equipment is obviously improved, and the labor burden of operators is reduced.

The present invention discloses a coal gas fine desulfurization device system in the technical field of coal gas desulfurization, comprising a tower body, an air inlet connected to the tower body, and an air outlet connected to the upper end of the tower body, wherein a plurality of spray mechanisms are arranged on the tower body, wherein the spray mechanism comprises a mounting platform fixedly connected to the inner wall of the tower body, a piston cylinder fixedly connected to the mounting platform, an upper end of a connecting pipe three is connected and rotatably connected to a feeding pipe, a lower end of the tower body is connected to a water pump, the feeding pipe penetrates through the upper end of the tower body and is connected to the water pump, a filtering mechanism comprises a filter cylinder connected to the lower side of one end of the piston cylinder located outside the mounting platform, a water blocking column is slidingly connected to the inner limit position of the filter cylinder, a push plate is fixedly connected to one end of the water blocking column close to the inner part of the piston cylinder, a material guide pipe is connected to the lower end of the material guide pipe, a material discharge pipe is penetrated through the lower end of the tower body and extends out, the present invention can realize filtration without stopping the desulfurization process, and at the same time can discharge the precipitate without causing smoke leakage.

The invention relates to a portable filter and a filtering method thereof. The portable filter comprises a main body; the spray head sprays gas; the air suction cylinder is arranged around the spray head in a swinging manner; the driving mechanism is arranged in the main body; the conveying channel is arranged in the main body; the first filter cartridge is obliquely arranged in the main body; the second filter cartridge is arranged in the main body around the first filter cartridge; wherein an air suction space is formed between every two adjacent air suction cylinders, and the air suction spaces adsorb air; the driving mechanism drives the air suction cylinder to swing, and the orientation and the width of the air suction end of the air suction space are adjusted. One end of the conveying channel is communicated with the air suction space; the other end of the conveying channel is communicated with the interior of the first filter cartridge, and the other end of the conveying channel is also communicated between the first filter cartridge and the second filter cartridge. The problems that in an existing scheme, a laboratory is filled with harmful gas, the whole laboratory is polluted, and the filtering efficiency of an air extractor is low are solved.

This utility model discloses a high-efficiency industrial wastewater treatment device, including a wastewater processor and a drain pipe installed on one side of the wastewater processor. One end of the drain pipe is connected to an anti-clogging component to prevent blockage during wastewater treatment. The anti-clogging component includes a diverter, a main pipe, a secondary pipe, a conical block, a sealing ring, and a spring. The main pipe and the secondary pipe are installed between two diverters. In this utility model, normal wastewater enters the main pipe through the diverter, and the main pipe then discharges the wastewater into the wastewater processor through the diverter. When the main pipe is blocked, the increased water pressure in the diverter will push the sealing ring to move. The sealing ring will move along the slide groove via a slider, so that the sealing ring cannot cooperate with the conical block to seal the secondary pipe. The wastewater will flow into the diverter through the secondary pipe, and the diverter will then discharge the wastewater into the wastewater processor through the drain pipe. In this way, if a blockage occurs during wastewater treatment, the blockage can be cleared after the wastewater treatment is completed.

A developer replenishment device includes an accommodating portion capable of accommodating a developer, a discharge base connected to the accommodating portion and provided with a valve slot and a discharge port for discharging the developer, a rotating member mounted on the discharge base and rotatable relative to the discharge base, and a first valve member mounted on the discharge base and rotatable relative to the discharge base. The first valve component is installed on the discharging base through the valve clamping groove, the first valve component can open and close the discharging opening, and in the process that the developing agent supply device is installed on the installation portion, the rotating component is connected with a second valve component of the image forming device, and the rotating component is rotated and can drive the second valve component to rotate. A middle hole formed in the second valve component is communicated with the powder inlet, the first valve component is moved, the discharge port is opened, the discharge port is communicated with the middle hole, and the developing agent is supplemented to the image forming device. When the developer supply device is arranged on the image forming device, the developer powder can be prevented from leaking, and the structure is simplified.

The invention provides a sandstone uranium mine shaft bottom blasting and permeation increasing plugging device which comprises a cylindrical supporting shell, an upper sliding body, a lower sliding body, two expansion assemblies and a sealing assembly. The upper sliding main body is arranged in the supporting shell in a sliding mode, and an exhaust channel capable of being plugged is formed in the upper sliding main body. The upper sliding main body is arranged in the supporting shell in a sliding mode, the lower sliding main body is arranged in the supporting shell in a sliding mode, an air storage space is formed between the upper sliding main body and the lower sliding main body, the lower sliding main body is provided with an air inlet channel, and the air inlet channel and the exhaust channel communicate with the air storage space; the two expansion assemblies are provided with a plurality of abutting parts, and the abutting parts move outwards to abut against the rock wall; the sealing assembly is arranged at the bottom end of the lower sliding body. According to the sandstone uranium mine shaft bottom blasting permeation-increasing plugging device, a sealing device for plugging a mine by means of blasting gas is provided, the device can be repeatedly used, the utilization rate is increased, and the plugging cost is reduced.

The utility model relates to an unmanned aerial vehicle fuel tank oil drainage tool, belongs to the technical field of aircraft fuel tank maintenance, and solves the problems that a liquid drainage device in the prior art is inconvenient to operate and easy to leak and pollute. The device comprises a sleeve, a sleeve mounting rod, a flow guide strip, a waste oil collecting shell, a driving nut and a flow guide pipe which are sequentially connected from top to bottom, and further comprises an auxiliary handle and an adjustable bracket mechanism. According to the oil drainage tool, the sleeve is driven by the driving nut to disassemble the liquid drainage device, and meanwhile, the flow guide strip, the waste oil collecting shell and the flow guide pipe are adopted to guide flow of flowing-out oil, so that when the oil drainage tool is used for oil drainage, operation is easy, and the situation that the oil leaks and pollutes personnel, airplanes and sites due to tools is avoided.

The present invention discloses a garbage unloading system, including an unloading platform, wherein the unloading platform includes two layers, a garbage truck travels on the upper layer of the unloading platform and dumps garbage, a ventilation component is provided on the top of the unloading platform, and two opposite sides of the unloading platform are respectively provided with a unloading hopper and a closed garbage pit, the garbage pit and the unloading hopper are connected by a transmission component, the transmission component is arranged on the lower layer of the unloading platform, and a filtering component is arranged at the bottom of the unloading hopper; the garbage truck pours the garbage into the unloading hopper, and the garbage is separated into solid and liquid by the filtering component, and the leachate flows into the leachate collection system, and the solid garbage is transported to the garbage pit by the transmission component. The garbage unloading system of the present invention has the advantages of compact structure, high space utilization, high operation stability, excellent ventilation performance, and can realize solid-liquid separation and preliminary screening of garbage.

The utility model discloses a short lint opening device for refined cotton, the upper end of shell is open, and the roller blind is slid in the sliding slot of the front and rear sidewall of shell, one end of the pair of traction ropes is fixedly connected with the other end of roller blind respectively, the output shaft of roller blind motor is in transmission connection with the roller blind pivot, and each pair of rollers respectively engages through the gear drive of the end portion setting, the output shaft of each motor is in transmission connection with any input shaft of each pair of rollers respectively, and each pair of rollers is respectively provided with the tearing claw, and the pair of material guide plates are respectively installed on the left and right sidewall in the shell through one end hinged, and the left and right sidewall of shell is also provided with the support hole respectively, and the screw sleeve seat is movably installed in the support hole respectively, and the support screw rod is installed in the screw sleeve seat through the thread, the utility model has the advantages of directly opening the cotton of cotton bale once by the tearing claw of "L" shape, and the cotton opening efficiency is high without the pre-opening treatment.

The utility model relates to the field of analytical instruments, and discloses a urine specimen centrifugal device which comprises a centrifugal tube containing a urine specimen, the centrifugal tube comprises a tube body with the upper diameter identical to the lower diameter, and a separation plug is connected in the tube body in the length direction. The separating plug divides the pipe body into a first cavity and a second cavity and seals the first cavity and the second cavity. The centrifugal tube is divided into the first chamber and the second chamber through the separation plug, during use, a patient puts urine into the first chamber, and even if the patient fills the first chamber, an analyst can move the separation plug towards the second chamber, so that the accommodating volume of the first chamber is enlarged, the liquid level in the first chamber is reduced, and the urine in the first chamber is separated from the urine in the second chamber. The urine is prevented from splashing when an analyst opens the cover.

The present invention relates to the technical field of molding cooling devices, and specifically to a molding cooling device for processing automobile sealing strips, comprising a base platform; an extrusion mechanism fixed to the inner bottom wall of the base platform, the extrusion mechanism comprising a screw extruder, the outer surface of the screw extruder is connected to a feed hopper, the output end of the feed hopper is fixed with an extrusion head for extruding and transporting rubber raw materials for production; and a molding mold fixed to the upper end of the base platform. The transmission assembly and multiple sleeves provided in the present invention can drive the reciprocating screw 2 and the reciprocating screw 1, so that when the device is cleaning, the push plate therein moves first, and through the forward and backward movement mode, the salvage mesh plate can better push the impurities in the water in the cooling box body, and at the same time, the impurities in the sealing shell will not leak into the cooling box body along the water flow, so that when the device cools the sealing strip material, the cleanliness of the surface of the sealing strip material can be ensured.

The present invention discloses a sealing structure of a grate cooler, which belongs to the technical field of cement machinery and equipment, and includes a plurality of sealing modules connected by a relative sliding mechanism, wherein the sealing module includes a segment beam, a grate plate, a material retaining plate, a relative sliding mechanism, an anti-wear and anti-leakage system and a vent valve, wherein the grate plate is installed above the segment beam, the material retaining plate is installed at the edge of the grate plate, the vent valve is installed at the bottom of the segment beam, the anti-wear and anti-leakage system is installed on the relative sliding mechanism, and the relative sliding mechanism includes a concave sealing plate, a convex sealing plate, an anti-wear block and an L-shaped plate, wherein the concave sealing plate, the convex sealing plate and the L-shaped plate are sequentially sleeved together from top to bottom, the concave sealing plate, the L-shaped plate and the convex sealing plate slide relative to each other, an anti-wear block is installed on one side of the concave sealing plate, and the anti-wear and anti-leakage system includes a wear-resistant plate and a wear-resistant gap adjustment plate. The present invention can effectively avoid the problem of equipment loss caused by the reverse friction between clinker and equipment, improve the sealing performance of the device, and can adjust the width and length according to demand.

This utility model belongs to the field of cadmium telluride BIPV technology, specifically relating to a cadmium telluride insulated photovoltaic glass for back-connected junction boxes. It includes an outer encapsulation glass layer, with a cadmium telluride power generation chip adhered to one side of the outer encapsulation glass layer, and an inner encapsulation glass layer adhered to the side of the cadmium telluride power generation chip away from the outer encapsulation glass layer. A sealing ring and sealant are used to maintain a seal at the circular hole between the sealing ring and the inner and outer encapsulation glass layers, thus sealing the hollow cavity layer. The positive and negative electrodes of the cadmium telluride power generation chip on the side closest to the inner encapsulation glass layer converge at the circular hole via conductive adhesive strips, and then connect to the junction box through the center of the sealing ring. This allows the back-connected cadmium telluride laminated monolithic product to be combined with the insulated glass product, enabling the cadmium telluride laminated monolithic product to be connected to the junction box while retaining the sound insulation, heat insulation, and thermal insulation functions of the insulated glass product.

The utility model provides a CO catalytic combustion furnace which comprises a combustion furnace, an air supply assembly, a filter bin, a filter assembly, a circulating filter assembly and a cleaning assembly, the air supply assembly is arranged on one side of the combustion furnace, the filter bin is arranged on one side of the air supply assembly, the filter assembly is arranged in the filter bin, and the circulating filter assembly is arranged in the filter bin. The circulating filtering assembly is arranged in the filtering bin, and the cleaning assembly is arranged in the filtering bin; the device for the CO catalytic combustion furnace is composed of the combustion furnace, the air supply assembly, the filtering bin, the filtering assembly, the circulating filtering assembly and the cleaning assembly. Water passes through a water pipe, passes through a flow dividing pipe and enters two groups of water outlet pipes, particles and dust in waste gas are filtered through a spraying head, the particles and the dust which are caked with the water are filtered through a stainless steel filter screen in a cleaning assembly, and the filtered water enters a water storage bin again, so that recycling of water resources is realized.

The utility model belongs to the field of plastic bottle caps, and particularly relates to an anti-falling opening and closing bottle cap which comprises a bottle cap and a bottle body, the bottle cap is matched with the bottle body, internal threads are arranged on the inner side of the bottle cap, a sealing ring is arranged on the inner side of the top of the bottle cap, a connecting bridge is fixedly connected to the bottom of the outer side of the bottle cap, and an anti-theft ring is fixedly connected to the other side of the connecting bridge. The bottom of the bottle cap and the top of the anti-theft ring are fixedly connected with a plurality of twist-off teeth, an upper limiting groove is formed in the inner side of the anti-theft ring, and the bottle cap and the anti-theft ring are connected into a whole through the connecting bridge and prevented from being separated. After the bottle cap is unscrewed, the bottle cap can be limited by the upper limiting ring and the lower limiting ring, so that the bottle cap cannot fall off, after the bottle cap is tightened, the sealing ring and the bottle body are more tightly contacted through screwing of the internal thread and the external thread, and liquid in the bottle is prevented from leaking out.

An oil cylinder oil drainage structure integrating linear reciprocating motion and rotary motion comprises an oil cylinder body used for use, a telescopic piston rod arranged in the oil cylinder body, an oil cylinder front cover installed at one end of the oil cylinder body, a fixing base fixed to one side of the oil cylinder front cover, a cavity formed in the fixing base and a framework oil seal. A framework oil seal is arranged between the piston rod and the oil cylinder front cover, and oil discharging mechanisms are arranged on the two sides of the framework oil seal. The oil discharging mechanism comprises a first oil discharging annular groove, a third oil discharging channel and a one-way valve, the first oil discharging annular groove is formed in one side of the framework oil seal, two annular first supporting columns are symmetrically arranged in the first oil discharging annular groove, and a first oil brush is arranged on the portion, on the top of the inner side of the first oil discharging annular groove, of the first supporting column. Oil films brought out by linear motion and rotary motion of the piston rod can be well discharged, leakage of hydraulic oil is avoided, and use is facilitated.

The utility model discloses a reaction stirring kettle for organosilane production, which comprises a first supporting piece, two groups of second supporting pieces are symmetrically arranged on the upper surface of the first supporting piece, the two groups of second supporting pieces are rotatably connected with a reaction kettle, and one end of the reaction kettle is connected with the output end of a motor through a first driving assembly. The motor is connected with a rotating rod in an inner cavity of the first supporting piece through a second driving assembly, the rotating rod is rotationally connected with the first supporting piece and connected with one end of the stirring piece through a third driving assembly, and the stirring piece is rotationally installed in the inner cavity of the reaction kettle in a sealed mode. Meanwhile, the second driving assembly is matched to drive the rotating rod to rotate, the third driving assembly is matched to drive the stirring part to rotate, compared with the prior art, when the stirring part rotates, the kettle body of the reaction kettle can also rotate, the stirring part and the stirring part are matched with each other, stirring can be more uniform, and the stirring and mixing efficiency can be improved.

The invention discloses an operating forceps disinfection device which comprises a disinfection bin, a brush is mounted on the disinfection bin through a mounting piece, a rotating block is rotationally connected to the disinfection bin, a circular ring is fixed to the inner wall of the rotating block, a clamping groove is formed in the circular ring, the circular ring abuts against a cover plate, and a clamping block extending into the clamping groove is fixed to the bottom of the cover plate. A circular groove is formed in the cover plate, a fixing plate is fixed in the circular groove, a notch is formed in the upper end of the fixing plate, and the cover plate is matched with the connecting piece. According to the surgical forceps disinfection device, two legs of surgical forceps extend into the circular grooves, each leg of the surgical forceps is located on the two sides of the fixing plate, the surgical forceps are clamped in the notches, the legs of the surgical forceps extend into the disinfection bin to make contact with the brush, the position of the disinfection bin is controlled, the surgical forceps are rotated, at the moment, the rotating block rotates along with the surgical forceps, and the legs of the surgical forceps are in the disinfection bin under the action of the brush. And cleaning and disinfection are carried out.

The utility model relates to the technical field of evaporators, and discloses a high-efficiency energy-saving evaporator device for refrigeration air conditioning equipment, which comprises an evaporator body, a plurality of groups of copper pipe loops are arranged on two sides of the evaporator body in an extending manner, a placing plate is arranged on the bottom surface of one side of the evaporator body, and a filter component is arranged on the placing plate. The top surface of the filter assembly is connected with a waterway adjusting assembly; and the waterway adjusting assembly is connected with the copper pipe loop through a water pipe. By arranging the filter assembly, impurities in water can be effectively removed, a copper pipe loop is prevented from being blocked, and the service life of equipment is prolonged; by arranging the water path adjusting assembly, on one hand, accurate control over water flow of the evaporator is achieved, invalid circulation is reduced, and the heat exchange efficiency is improved, and on the other hand, under cooperation of a switching valve and an impurity detection sensor, water quality can be monitored in real time, automatic switching of water paths is achieved, and release of water with low impurity content is achieved; and impurities with high impurity content are fed into the filter assembly, so that the impurities are prevented from entering core parts of the evaporator.

This invention discloses a quantitative molten metal feeding device for a die-casting machine that offers stable flow and easy maintenance. The device includes a slurry tank, a valve core module, a cylinder, a connecting shaft, a plunger rod, and a probe module. The valve core module comprises a guide tube, a small end cap, and a large end cap. The guide tube is assembled inside the large end cap. The small end cap and guide tube together can move vertically within the central through-hole of the large end cap. Through-holes A and B are respectively provided on the sides of the guide tube and the large end cap. When the valve core module extends from the bottom of the large end cap, the molten metal sequentially enters the slurry tank through the valve port at the bottom of the guide tube, through-hole A, and through-hole B. When the valve core module retracts from the bottom of the large end cap, the molten metal is sealed and stored inside the slurry tank. This invention achieves stable quantitative molten metal feeding and allows for faster recovery after power outages. The molten metal valve port has an anti-collision structure, ensuring that even if the device experiences a violent collision with the die-casting machine or the ground during operation, the high-temperature molten metal inside will not leak, making it safer to use.