453 results about "Expansion tank" patented technology

A cooling system for an electric traction machine includes a looped conduit system for conducting a first cooling liquid and a circulation pump for conveying the first cooling liquid in a first circulation direction. The cooling system includes an expansion tank filled at least partially with the first cooling liquid and a gas, and a motor input terminal for fluidically connecting the looped conduit system on an input side to the electric traction machine. The cooling system includes a motor output terminal for fluidically connecting the looped conduit system on an output side to the electric traction machine and a first heat exchanger for dissipating heat from and / or supplying heat to the first cooling liquid. In the first circulation direction, the first heat exchanger is arranged downstream of the electric traction machine and connected via the motor input and output terminal and upstream of the expansion tank.

The invention discloses a liquid cooling system and a pressure control method thereof. The pressure control method comprises the following steps: acquiring a real-time environment temperature, a real-time input side temperature and a real-time input side pressure; when the liquid cooling system enters a first liquid supplementing state, the real-time input side temperature and the real-time environment temperature are compared to confirm the initial expansion temperature; calculating a real-time temperature difference value between the real-time input side temperature and the initial expansion temperature; the real-time input side pressure is compared with a preset input pressure threshold value, the real-time temperature difference value is compared with a preset temperature difference threshold value, and the working state of the pressure adjusting mechanism is adjusted according to the comparison result; according to the method disclosed by the invention, through real-time monitoring and dynamic adjustment, the system pressure of the liquid cooling system is always maintained in a suitable operation interval; and meanwhile, the demand on the volume of the expansion tank is remarkably reduced by actively adjusting the pressure, so that the overall volume of the liquid cooling system is effectively reduced, the material cost and the manufacturing cost are directly reduced by reducing the volume demand of the expansion tank, and the market competitiveness of the product is improved.

The utility model discloses a waterproof hammer diaphragm type component of an expansion tank in the technical field of expansion tanks, which comprises an expansion tank main body, the bottom of the expansion tank main body is fixedly connected with supporting legs, and the waterproof hammer diaphragm type component can guide a diaphragm component to be placed in the expansion tank main body through the sliding connection between a guide strip and a guide plate. The mounting position of the bottom of the diaphragm assembly can be limited through clamping of the bottom of the limiting plate and the expansion tank body, the mounting position of the top of the diaphragm assembly can be limited through clamping of the extension strip and the built-in ring, the stability of the diaphragm assembly in the mounting and using process is improved, follow-up quick disassembly and replacement of the diaphragm assembly are facilitated, mixing of gas and water is avoided, and the service life of the diaphragm assembly is prolonged. Normal adjustment of the pressure of the expansion tank system is guaranteed, buffer protection can be conducted on one side of the diaphragm assembly through the spring telescopic rod and the arc-shaped elastic piece, therefore, pressure can be buffered together with elastic deformation of the diaphragm assembly, and the water hammer preventing effect is enhanced.

The application discloses an ammonia dual-fuel ship air conditioning refrigeration system and method and a ship, and relates to the field of ship air conditioning refrigeration systems. The system comprises an air conditioning cold water unit system, a liquid ammonia cold energy recovery heat exchanger system, an air conditioning refrigerant water expansion tank and an air conditioner. The air conditioning cold water unit system, the liquid ammonia cold energy recovery heat exchanger system, the air conditioning refrigerant water expansion tank and the air conditioner are connected through circulating pipelines and corresponding valves. The air conditioning cold water unit system and the liquid ammonia cold energy recovery heat exchanger system are arranged in an ammonia fuel supply equipment room, and the air conditioning refrigerant water expansion tank and the air conditioner are arranged inside a driver's cabin. An air conditioning refrigerant water circulating pump is arranged on the circulating pipeline in the ammonia fuel supply equipment room. The application recovers and utilizes the cold energy of low-temperature stored ammonia fuel, solves the problem that a ship is difficult to maintain and replace refrigerant in the European Union region, saves electric energy of a dual-fuel ship, and plays a role in energy saving and emission reduction.

This utility model relates to the field of battery anode material premixing technology and discloses a lithium-ion battery anode material premixing device, including a stirring tank and a drive motor. By controlling the lower stirring rod to connect with the upper stirring rod, and further controlling the drive motor to make the upper and lower stirring rods rotate synchronously, the second scraper will scrape the material on the filter plate, and the material will be crushed by the roller. The material falling off the filter plate will enter the interior of the stirring tank. When the hopper is opened, the material will be stirred by the first scraper and scraped out of the hopper, thereby increasing the mixing degree of the material. By controlling the matching of the buckle and the buckle seat, and making the stirring tank, filter plate and expansion tank stacked in sequence, the device can be assembled. In use, by pulling the buckle to release the buckle from the buckle seat, the expansion tank can be removed from the stirring tank. Furthermore, the internal components of the device can be disassembled, which facilitates the cleaning and maintenance of the device.

The application provides a whole heat pump, and relates to the technical field of heat pumps.The whole heat pump comprises a box, a fan, a compressor and a water module assembly.The box is provided with a first chamber and a second chamber which are spaced apart from left to right, and the fan is arranged in the first chamber.The water module assembly comprises a water module electric control box, an expansion tank and an electric heater, the water module electric control box is arranged on the right side of the second chamber, the expansion tank is arranged on the back side of the second chamber, the compressor is arranged on the left side of the second chamber, and the electric heater is arranged on the front side of the second chamber.The whole heat pump provided by the application has a more compact structure and occupies less space.

The utility model discloses a kind of duplex ball valves with non-return function, belong to ball valve technical field, including duplex ball valve body, one end of the duplex ball valve body is equipped with non-return pipe by bolt, the outside of the non-return pipe is provided with protection mechanism, the outside of the non-return pipe is provided with moving groove, the inside of the non-return pipe is provided with expansion tank, the inner chamber of the non-return pipe is provided with rear conical plug, the inner chamber of the moving groove is slidably connected with movable ring. In the utility model, when the inside of non-return pipe flows fluid, fluid pushes conical plug post and the inner wall of rear conical plug separate to make fluid flow, when the inside of non-return pipe does not flow fluid, the elastic force of spring is used to drive conical plug post reset, so that conical plug post is plugged to the inner chamber of non-return pipe, avoid fluid reflux, in addition, spring is supported by first fixed column and second fixed column and is packaged, spring can be replaced, and practicality is good.

The utility model discloses a heat conduction oil system which comprises an expansion tank, an oil supply pipeline, an oil return pipeline, a cooler, a collecting container, a single expansion pipe and an auxiliary exhaust pipe. The oil supply pipeline and the oil return pipeline are respectively connected with the expansion tank, the oil supply pipeline is provided with an oil supply valve, and the oil return pipeline is provided with an oil return valve; the heat-conducting oil can enter the expansion tank through the oil supply pipeline and circulate in the expansion tank, so that the temperature of the heat-conducting oil in the expansion tank is increased, low-boiling-point substances in the heat-conducting oil are gasified, and the pressure of the expansion tank is increased; the cooler is connected with a gas outlet of the expansion tank through a first pipeline, and the cooler is connected with the collecting container through a second pipeline; and gasified low-boiling-point substances are conveyed to a cooler for cooling through a gas outlet of the expansion tank, and then are conveyed to the collecting container. According to the conduction oil system provided by the utility model, the content of low-boiling-point substances in the conduction oil can be obviously reduced, and the normal work of the system is ensured.

The invention relates to the technical field of unmanned aerial vehicles, in particular to an eVTOL motor arm combined cooling system structure which is arranged in a motor arm, lifting force systems are installed at the two ends of the motor arm correspondingly, and each lifting force system comprises a motor installed on the motor arm and a propeller fixedly installed at the output end of the motor. Motor controllers are mounted at the two ends of the motor arm; the cooling system structure comprises a water pump, an expansion water tank, a radiator and a cooling water pipe which are arranged in the motor arm, the water pump, the expansion water tank, the radiator, the motor controller and the motor are communicated through the cooling water pipe to achieve cooling of the motor controller and the motor. An air channel is formed in the motor arm, downward airflow formed when the propeller rotates enters the motor arm from the air channel and then is blown to the radiator, the air velocity on the surfaces of fins of the radiator is increased, and the radiating efficiency of the radiator is improved. The cooling device has the advantages of light weight, low cost and good cooling effect.

The present application belongs to the technical field of industrial circulating water, and relates to a method for reducing the operation pressure of a closed circulating water system, which comprises a circulating water pump and a heat exchange device connected through a circulating water pipeline to form a closed loop, and is connected to an expansion tank through a connecting pipeline and a connecting valve in a breakable manner; the method comprises the following steps: a system starting step: starting the circulating water pump to form a stable flow of circulating water in the closed loop; a connecting opening step: after the flow of circulating water is stabilized, the connecting valve is opened to form a pressure connection loop between the expansion tank and the closed circulating water system; a pressure regulating step: the operation pressure of the closed circulating water system is controlled within a safe pressure range by regulating the gas pressure in the expansion tank; a shutdown isolation step: when the closed circulating water system needs to be shut down, the connecting valve is closed to cut off the pressure connection between the expansion tank and the closed circulating water system, and then the circulating water pump is closed.

The utility model discloses a low-boiling-point substance collecting device of a heat conduction oil heating furnace. The low-boiling-point substance collecting device comprises an expansion tank and an oil-gas separator, the oil-gas separator is in fluid communication with an inner cavity of the expansion tank through an expansion pipeline, an exhaust port is formed in the top of the expansion tank, the low-boiling-point substance ascending pipe is in fluid communication with the inner cavity of the expansion tank through the exhaust port, and the condensate descending pipe and the low-boiling-point substance ascending pipe are arranged at intervals; the condensing pipes are arranged between the low-boiling-point substance ascending pipe and the condensate descending pipe, each condensing pipe is obliquely arranged from the low-boiling-point substance ascending pipe to the condensate descending pipe from high to low, and the low-boiling-point substance ascending pipe, the condensing pipes and the condensate descending pipe are in fluid communication. The device further comprises a low-boiling-point substance condensate recovery tank, and the condensate descending pipe is communicated with the low-boiling-point substance condensate recovery tank through a condensate recovery pipeline. Low-boiling-point substances are continuously and rapidly collected on line, the heat transfer performance of heat conduction oil is improved, the heating furnace operates stably, and the heat efficiency is high.

The utility model discloses an integrated battery pack and electric engineering machinery, the integrated battery pack includes: battery pack body, cooling circulation waterway and expansion water tank, wherein expansion water tank sets up at the horizontal highest end of battery pack body, and expansion water tank has the gas outlet, and the gas outlet is connected with the water outlet main pipe waterway of cooling circulation waterway, and expansion water tank is used for carrying out the degassing of cooling circulation waterway through the gas outlet. The integrated battery pack and electric engineering machinery can carry out the degassing of cooling circulation waterway through the expansion water tank set up at the horizontal highest end of battery pack body, and the air in cooling circulation waterway is discharged outside the system, so that in the case that the water cooling unit is arranged at the low vehicle end or the charging seat end, the degassing function of cooling circulation waterway in the battery pack for battery replacement can be realized, thereby the heat exchange capacity of the battery pack is improved.

The utility model discloses a liquid cooling device capable of realizing ventilation of a shelter and heat dissipation of equipment, which belongs to the technical field of heat dissipation and ventilation of the shelter, and comprises a fixed plate, and a liquid return temperature transmitter, a liquid supply temperature transmitter and an environment temperature transmitter which are arranged on one side of the fixed plate, an environment temperature transmitter is arranged on the air inlet face of the plate-fin heat exchanger, an expansion water tank is installed on one side of the fixing plate, a gulp valve is installed on the top of the expansion water tank, an exhaust valve and a pump front pressure transmitter are installed on one side of the expansion water tank, and a liquid supply pipeline is arranged on one side of the expansion water tank. A liquid supply pressure transmitter is installed on the liquid supply pipeline, and a water pump is arranged below the liquid return temperature transmitter. The liquid cooling device capable of achieving ventilation of the shelter and heat dissipation of the equipment is compact in structure, high in anti-electromagnetic interference capacity and capable of stably adapting to the severe environment, and the operation reliability of the shelter equipment is improved.

The invention relates to a motor junction box detection system and method and a vehicle, and relates to the field of automatic control, the motor junction box detection system is applied to the vehicle, the motor junction box detection system comprises a temperature sensor, a cooling assembly and a controller, the controller is connected with the cooling assembly and the temperature sensor, the cooling assembly comprises a cooling water path, and the cooling water path is connected with the temperature sensor. The cooling water path is connected with a motor expansion water tank and a heat dissipation pump of the vehicle, and the cooling water path is arranged around a plurality of wiring terminals in the motor junction box in a surrounding manner; the temperature sensor is used for detecting the temperature in the motor junction box; and the controller is used for controlling the cooling water channel to reduce the temperature of the motor junction box under the condition that the temperature in the motor junction box is greater than or equal to a preset first temperature threshold value. According to the technical scheme, under the condition that the temperature is larger than or equal to the first temperature threshold value, active cooling is conducted through the cooling assembly.

The invention relates to a filling and extraction arrangement (15) for at least one coolant expansion tank (2), comprising a connecting hose (16) for connection to a filling and extraction station, wherein a connection arrangement (18) for connection to the at least one coolant expansion tank (2) is provided at the opposite end of the connecting hose (16), wherein the connection arrangement (18) has at least one coolant lance (28) for a coolant main chamber (4) of the coolant expansion tank (2), wherein a closable measuring opening (24) for a dipstick (30) is provided in the region of the coolant lance (28), and wherein the connection arrangement (18) can be coupled fluid-tight to at least one main opening (12). The invention also relates to a method for operating such a filling and extraction arrangement (15).

The utility model belongs to the technical field of heating system control, and discloses a heating system operation start-stop sequence control system which comprises a screw heat pump unit, an air conditioner side circulating pump arranged on the screw heat pump unit, a buried side circulating pump arranged on the screw heat pump unit, a user side collector arranged on the air conditioner side circulating pump, and an underground side collector arranged on the buried side circulating pump. A user side water device is arranged on the air conditioner side circulating pump and connected with the screw heat pump unit. An underground side water collector is arranged on the underground side circulating pump, a ground side water distributor is arranged on the underground side water collector, and an air source heat pump host is arranged on the ground side water distributor; the underground side circulating pump is provided with an underground pressure measuring device, the underground pressure measuring device is provided with an expansion water tank, the expansion water tank is provided with a user pressure measuring device, and the user pressure measuring device is connected with the user side collector and the underground side water collector. By optimizing the starting and stopping sequence of the heating system, the energy consumption is remarkably reduced, the system operation efficiency is improved, and meanwhile the heating system has wide application prospects.

The utility model discloses a constant-pressure water replenishing device for an expansion tank in the technical field of expansion tanks, which comprises an expansion tank main body, a water storage air bag main body is arranged in the expansion tank main body, a water replenishing pipe is communicated above the water storage air bag main body, and a switch of the water replenishing pipe is controlled through an electric valve. Meanwhile, an air pressure detector is arranged at the bottom end in the expansion tank main body, so that the air pressure detector detects the air pressure state in the expansion tank main body, and when the air pressure in the expansion tank main body is reduced to a certain threshold value, the problem that in the background technology, a water supplementing device of an existing expansion tank is often damaged after the water pressure in a water pipe is stable is solved; the problem that normal use of the water pipe is affected due to the fact that the water pressure of the water pipe is not stable enough when the water pipe replenishes water to the expansion tank when the water pipe supplies water to the expansion tank is solved.

The invention relates to a fuel cell fixed power generation cooling system and method and a power generation system. The fuel cell fixed power generation cooling system comprises an expansion water tank, the expansion water tank is connected with a cooling assembly, the expansion water tank is connected with a liquid supplementing pipeline, and the cooling assembly is connected with a liquid discharging pipeline; the inlet end of the liquid supplementing pipeline is connected with the outlet end of the liquid discharging pipeline and then connected with the deionized water pipeline and the anti-freezing liquid pipeline which are arranged in parallel, a first water pump and a first switch valve are arranged on the liquid supplementing pipeline, a second water pump and a second switch valve are arranged on the liquid discharging pipeline, and the deionized water pipeline is provided with a third switch valve and connected to the deionized water tank. The inlet of the deionized water tank is used for being connected with a tail exhaust pipeline of the power generation system, the anti-freezing liquid pipeline is provided with a fourth switch valve and connected to the anti-freezing liquid tank, the cooling system does not need manual operation, and the labor cost is saved.

The application provides a boiler wastewater treatment device, and belongs to the field of boiler wastewater treatment devices.The boiler wastewater treatment device comprises a base, a plurality of stands are fixedly connected to the top of the base, an expansion tank is fixedly connected to the top of the stand, a first water inlet pipe and a first water outlet pipe are fixedly connected to the expansion tank, a group of stabilizing frames are fixedly connected to the top of the base, an adjusting tank is fixedly connected to the top of the stabilizing frame, a second water inlet pipe and a second water outlet pipe are fixedly connected to the adjusting tank, a protective cover is fixedly connected to the top of the base, and the boiler wastewater treatment device further comprises: a stirring assembly, which is arranged on the inner side of the protective cover and is used for mixing sewage in the adjusting tank; and a heat exchange assembly, which is arranged on the top of the adjusting tank and is used for recycling heat in the wastewater.The boiler wastewater treatment device can use high-temperature blowdown wastewater as a heat source to preheat low-temperature make-up water of a boiler, so that the heat that would be discarded is guided back to the boiler system, and the effect of energy saving and consumption reduction is achieved.

The utility model provides an expansion water tank of a skid steer loader, and belongs to the technical field of cooling system accessories. The expansion water tank of the skid steer loader comprises a tank body and an installation supporting mechanism, a tank cover is installed on the top of the tank body, installation bolts are installed on the two sides of the tank body, installation bases are movably connected to the bottoms of the two sides of the tank body, installation heads located on the outer sides of the installation bolts are movably connected to the tops of the installation bases, and supporting plates are fixedly connected to the bottoms of the installation bases. The outer side of the top of the supporting plate is fixedly connected with a supporting seat, the supporting connecting mechanism is arranged on the inner side of the supporting plate, the bottom of the box body can be installed, supported and stabilized through the installation bolts by arranging the installation supporting mechanism, and additional supporting stabilizing force is provided for the box body while installation and connection of the box body are guaranteed; the situation that when the box body is matched with an external skid loader to work, the outer side shakes due to bumping, and even the installation position is broken is avoided, and therefore the installation work stability of the box body is improved.

The embodiment of the utility model relates to the technical field of liquid cooling equipment, in particular to an expansion tank and liquid cooling equipment. The utility model aims to solve the problems that the maintenance difficulty of the expansion tank is large and the operation continuity of the liquid cooling equipment is influenced. The embodiment of the utility model provides an expansion tank. The expansion tank comprises a tank body and a flow guide pipe. A pressure maintaining device is arranged in a first cavity defined by the tank body and divides the first cavity into a second cavity and a third cavity. The first end of the flow guide pipe communicates with the second cavity, the second end of the flow guide pipe is used for being arranged in a liquid pipeline, a pipe opening located in the second end faces the upstream of the liquid pipeline, and the liquid flowing direction is opposite to the pipe opening direction, so that dynamic pressure is generated at the pipe opening, the pressure in the flow guide pipe is increased, and cooling liquid flows into the second cavity along the flow guide pipe; and the cooling liquid in the second cavity becomes more and flows back into the liquid pipeline, so that the cooling liquid in the expansion tank flows, bacteria breeding can be prevented, and the cooling liquid is prevented from being polluted.

The utility model discloses a water -cooled two -wheeled vehicle integrated radiator and hydrogen pile cooling system, the radiator includes: the upper water room, the lower water room of setting in the upper water room bottom and the fixed between a plurality of connecting plates of upper water room and lower water room, a plurality of connecting plate between the installation has a plurality of radiating fins, the top of radiating fin is fixed with the bottom of upper water room, and the bottom is fixed with the top of lower water room, the radiating fin inside is provided with a plurality of radiating flow channel. Through adopting the radiator structure of integrated expansion water tank function, the heat dissipation of hydrogen pile is realized by using the mode of water cooling circulation, avoid the drawback that traditional air -cooled heat dissipation brings, simultaneously, on the radiator upper water room, combine exhaust and water supplement function, effectively solve the problem that the traditional hydrogen energy water -cooled two -wheeled vehicle is caused because of the single setting expansion water tank and leads to the system space occupation is big, the complex structure and the high cost problem, make hydrogen power system layout is more compact, is convenient for whole car assembly and later maintenance.

This utility model belongs to the field of expansion tank technology, specifically relating to an easy-to-install expansion tank, including an upper tank body. A lower tank body is connected to the bottom surface of the upper tank body, and connecting blocks are connected to both ends of the bottom surface of the upper tank body. One end of each connecting block extends into a connecting groove, which is located on the top surface of two protrusions. The protrusions are connected to the two ends of the top surface of the lower tank body. This utility model allows the connecting blocks at both ends of the upper tank body to be slidably inserted into the connecting grooves of the protrusions at both ends of the lower tank body. Then, by rotating a bidirectional screw, a sliding block on the bidirectional screw causes a movable insert to move within a movable groove. At this point, one end of the movable insert can be inserted into a slot on the connecting block, fixing the connecting block to the protrusion and thus securing the upper and lower tank bodies together. This eliminates the need for tools during installation, saving time and providing convenience for the installation of the expansion tank.

The utility model belongs to the technical field of expansion tanks, and particularly relates to a diaphragm spring expansion tank with a volume change monitoring function. In the prior art, piston sealing belongs to dynamic sealing, a sealing ring is abraded along with increasing of the number of times of expansion, and the sealing reliability can be reduced. The friction force of the piston is often large, so that the expansion compensation sensitivity is influenced; the expansion tank comprises an expansion tank shell, a piston assembly, a spring and an air bag used for being divided into the gas cavity and the liquid cavity. The air bag is located in the expansion tank shell, the internal space of the air bag is the liquid cavity, the space between the air bag and the expansion tank is the gas cavity, one end of the piston assembly is connected with the inner surface of the air bag, the other end of the piston assembly is connected with one end of the spring, and the other end of the spring is connected with the other end of the air bag. And the other end of the spring is connected with the expansion tank shell.

The utility model relates to hydrogen energy commercial vehicle field especially relates to a kind of hydrogen energy commercial vehicle expansion water tank system, including water tank body;Multiple horizontal baffles are arranged inside gas-liquid separation cavity staggeredly, and the upper end of each horizontal baffle is respectively spaced apart and provided with multiple inclined baffles.The utility model has the beneficial effects that: by the inside of expansion water tank being provided with gas-liquid separation cavity and liquid storage cavity, and by the inside of gas-liquid separation cavity being staggeredly provided with horizontal baffle and the inclined baffle being arranged on the upper end thereof, gas-liquid efficient separation can be realized, and the pressure change in expansion water tank is monitored by pressure sensor, the pressure in tank is dynamically regulated by electric pressure relief valve, maintains ±0.05bar fluctuation range, and the intelligent temperature control system in liquid storage cavity can start heating mode according to ambient temperature, and the circulating pump is started after coolant is preheated, to avoid fuel cell low-temperature operation, effectively prolong the service life of fuel cell.

1. The name of the design product: liquid cover. 2. The use of the design product: automobile plastic expansion tank liquid cover for automobile parts. 3. The design points of the design product: the combination of the shape and pattern of the whole product. 4. The picture or photo that best indicates the design points: combined state perspective view 1.

This invention discloses a rotary demolding device for an expansion tank, comprising a mold body, which includes a lower mold, a template mold, and an upper mold. The lower mold has a first mounting groove, and the upper mold has a second mounting groove. When the lower mold and the upper mold are combined, the first and second mounting grooves form a complete assembly cavity. The template mold is installed within the assembly cavity. The interior of the mold body contains a threaded forming component and a transmission assembly, while the exterior contains a drive assembly. The transmission assembly is connected to the threaded forming component and the drive assembly. The drive assembly includes a motor, a transmission box, a rack, and a drive gear. The transmission box is bolted to the exterior of the mold body. One end of the rack extends into the transmission box and is linked to the motor via the drive gear, while the other end extends along the exterior of the mold body and is linked to the transmission assembly. This invention has the advantages of compact structure and high mold assembly efficiency.

The utility model discloses a circulating water cooling control system for a mechanical grate furnace, which relates to the technical field of mechanical grate furnace water cooling and comprises a water inlet pipe, the water inlet pipe is connected with a seventh pipeline and a sixth pipeline through a fourth three-way joint, and the seventh pipeline extends to be connected with the bottom of an expansion water tank. And the sixth pipeline is connected with a fifth pipeline and a third control valve through a fifth three-way joint. The circulating water cooling control system for the mechanical grate furnace is provided with a plurality of control valves, a thermometer and a pressure sensor, can control on-off of circulating water in a multi-section mode, detect temperature and detect pressure, is provided with a heat exchanger, can conduct heat exchange operation on the circulating water, and is provided with an expansion water tank. The expansion of cooling water can be absorbed, the pressure is superposed by 8 bar, the structure is simple, convenience and practicability are achieved, and the actual production requirement is met.

The utility model relates to the technical field of expansion water tanks, and discloses an expansion water tank capable of being inflated in a universal rotating mode, which comprises a brass inflating connector, a brass base is fixedly connected to one side of the brass inflating connector, a stainless steel connecting clamp spring is fixedly connected to the inner wall of the brass inflating connector, and an O-shaped ring is installed at the bottom of the brass base. A brass inflation connector is fixedly connected to the outer portion of the brass base, a connecting connector is fixedly connected to the outer portion of the brass inflation connector, a valve core is fixedly connected to the inner wall of the brass inflation connector, a sealing assembly is fixedly connected to the inner wall of the connecting connector, an elastic assembly is arranged on the inner wall of the sealing assembly, and an expansion water tank is fixedly connected to one side of the brass base. According to the utility model, the brass base is arranged outside the expansion water tank, and the angle is adjusted by rotating the brass gas charging connector, so that the stainless steel connecting clamp spring is driven to rotate until the clamp spring abuts against one side of the base, deforms and stores elastic potential energy, thereby limiting the rotation of the connector.

The application discloses an expansion water tank for a dual-purpose stove, which comprises a tank body (81), and the inside of the tank body (81) is provided with a liquid cavity (810b) for containing and supplementing the expansion and contraction amount of circulating water in a circulating loop, and is characterized in that the tank body (81) is provided with a descaling agent supply channel (8130), the inlet of the descaling agent supply channel (8130) is connected with a descaling agent storage box (83), the outlet of the descaling agent supply channel (8130) is communicated with the liquid cavity (810b), and the descaling agent supply channel (8130) is provided with a valve (84) for controlling the opening and closing of the descaling agent supply channel (8130). The application further discloses a dual-purpose stove provided with the expansion water tank. Compared with the prior art, the expansion water tank for the dual-purpose stove is convenient for descaling the circulating water path.