146 results about "Cylinder Valve" patented technology

The invention relates to the technical field of high-pressure gas cylinder control, and discloses a high-pressure gas cylinder valve pressure dynamic monitoring and self-adaptive adjusting method. The method comprises the following steps: dividing a high-pressure gas cylinder valve into a plurality of monitoring units, and obtaining pressure, temperature and flow data of each unit to form a comprehensive monitoring data set; establishing a pressure stability evaluation index and an environmental factor influence evaluation index based on the data set, and generating an initial risk value by applying a probability early warning mechanism and an adaptive prediction model; dynamically correcting the initial risk value and outputting a corrected risk value according to spatial relevance or time sequence dependency of adjacent monitoring units; and finally, the corrected risk values are sorted, a priority control instruction list is generated, and a control execution unit is combined to output a self-adaptive adjustment signal so as to adjust the opening degree of the valve. According to the method, comprehensive monitoring and dynamic adjustment of the high-pressure gas cylinder valve are achieved, and the operation stability of the valve is improved.

The invention discloses a high-sealing ball valve with a leakage detection function, and relates to the technical field of valves, the high-sealing ball valve comprises a bottom shaft, a valve body structure, a filler box, a support, a filler gland, a valve cover and an air cylinder, the valve body structure adopts a leakage detection technology, when a leaked medium is captured, the leaked medium can be timely introduced into the detection structure, and the leakage detection function is achieved. Leaked media can be detected in the early stage of leakage, medium loss caused by further expansion of the leakage is prevented, meanwhile, an automatic leakage repairing technology is adopted, when the detection structure detects leakage, the injection structure injects sealing grease to the sealing face between the valve seat and the ball body in time, the sealing grease evenly fills a leakage channel under the pressure effect, and the leakage is avoided. And the continuous leakage of the medium is blocked, temporary filling is carried out, the injection structure is reset after filling is completed, it is ensured that the normal opening and closing functions of the ball valve are not affected, and the medium loss and environmental pollution risks caused by leakage are reduced.

The utility model relates to the technical field of hydrogen storage equipment, in particular to a gas supply device, a bottleneck combination valve and a hydrogen storage bottle group. The air supply device comprises an air supply pipeline, a valve seat, an air supply one-way valve, an overflowing protection valve and a filtering mechanism. The valve seat, the air supply one-way valve, the overflowing protection valve and the filtering mechanism are all arranged in the air supply pipeline; the air supply one-way valve is used for making contact with the valve seat and sealing the air supply pipeline when bearing preset pressure difference larger than the first direction. The overflowing protection valve is used for making contact with the valve seat and sealing the air supply pipeline when bearing the preset pressure difference larger than the second direction. By arranging the gas supply one-way valve, in the hydrogen filling process, high-pressure hydrogen is prevented from passing through the high-pressure electromagnetic valve, and then the influence of temperature and flutter on the service life of the high-pressure electromagnetic valve in the filling process is avoided; when the downstream pipeline of the bottle opening combination valve is broken and the flow is increased abnormally, the gas supply pipeline is closed through the overflowing protection valve, and abnormal discharge is avoided.

The pressure reducing valve comprises a valve body, the valve body is provided with a gas cylinder mounting port and a gas outlet port, the valve body is provided with a pressure reducing mechanism, the pressure reducing mechanism comprises a valve element assembly, the valve element assembly is arranged in the valve body, the valve body is provided with a gas inlet assembly, the gas inlet assembly comprises a floating piston, and the valve body is provided with a piston cavity. A part of the floating piston is movably arranged in the piston cavity, the floating piston divides the piston cavity into a first cavity and a second cavity, the valve element assembly is located between the first cavity and the air outlet port, and the second cavity communicates with the exterior of the valve body; the valve body is provided with a through hole, the through hole is located between the piston cavity and the gas cylinder installation opening, and part of the floating piston movably penetrates through the through hole. The floating piston is provided with an air inlet channel, and the air inlet channel communicates with the first cavity and the air bottle mounting opening. When the first cavity is provided with compressed gas, the floating piston can be pushed to move in the direction close to the gas cylinder installation opening, the floating piston further ejects a valve element of the cylinder valve open, and labor is saved.

The utility model provides a pressure regulation control system for a riser of a coke oven. The pressure regulation control system comprises a PLC (Programmable Logic Controller) system, a remote monitoring system, a remote IO (Input / Output) system and a riser opening and closing regulation system, the PLC system is used for controlling the opening degree of a turning plate of the whole turning plate pressure regulating control system and changing the area of a channel of the raw gas guided into the gas collecting pipe; the remote monitoring system is installed in a central control room; the remote IO system is used for collecting and transmitting information of the turning plate air cylinder on site and transmitting an executed control instruction; and the ascending pipe opening and closing adjusting system is used for receiving information of the PLC system to open and close a flap valve of an ascending pipe bridge pipe. According to the system, a cylinder, a valve positioner and other components are arranged on a mechanical water seal flap valve, a PLC system is used for controlling the opening degree of a flap, the area of raw gas guided into a gas collecting pipe channel is changed, and the purpose of adjusting the bottom pressure of a carbonization chamber is achieved by adjusting the guided-out amount of the raw gas.

The invention relates to a steel cylinder valve nitrogen sealing device which comprises a steel cylinder valve on a steel cylinder body and a steel cylinder valve connector connected with the steel cylinder valve, a vacuumizing device or a valve cover is connected in front of the steel cylinder valve connector, one end of the steel cylinder valve connector is connected with a steel cylinder, and the other end of the steel cylinder valve connector is connected to the vacuumizing device through an adapter or directly connected with the valve cover. A non-return device is arranged in the steel cylinder connector, a starting device is installed in the valve deck or the adapter, and the non-return device is driven by the starting device to be opened and closed. The device is low in overall cost, small in size and convenient to operate, and the problem of corrosion of the steel cylinder valve and the steel cylinder connector can be well solved, that is, air is isolated in a nitrogen sealing mode, the possibility of contact with residual corrosive media is reduced, and the effect of reducing corrosion is achieved.

The utility model relates to a screwing tool for a cylinder valve of a gas cylinder, which aims at solving the technical problem that a valve core of the gas cylinder is not easy to screw after being used for a long time, and adopts the technical scheme that an isosceles trapezoid clamping hole is formed in the upper part of a rectangular screwing plate, the clamping hole is narrow at the upper part and wide at the lower part, and the length of the upper bottom is smaller than the diameter of the valve core; the length of the lower bottom is larger than the diameter of the valve element, the included angle alpha between the waist and the lower bottom is larger than or equal to 75 degrees and smaller than 90 degrees, withdrawing blocks are fixedly arranged on the edges of one side or the two sides or the middle of the side wall of the screwing plate, a cushion block is fixedly arranged at the top end, and the width of the cushion block is larger than the thickness of the screwing plate. The valve element can be completely clamped through the trapezoid clamping hole, the valve element is loosened according to the lever principle, the length of the screwing plate can be adjusted according to needs, operation is easy, and operation efficiency is greatly improved.

The utility model relates to the technical field of liquid chlorine treatment, in particular to a liquid chlorine steel cylinder treatment device and a using method. The device comprises a liquid chlorine steel cylinder, a gravity sensing base for sensing the weight of the liquid chlorine steel cylinder, and an evacuating and replacing unit which is communicated with the liquid chlorine steel cylinder and is used for removing residual chlorine in the liquid chlorine steel cylinder, the neutralizing unit is communicated with the liquid chlorine steel cylinder and is used for neutralizing residual chlorine; the purging and drying unit and the air tightness checking unit are sequentially arranged at the downstream of the evacuating and replacing unit; the liquid chlorine steel cylinder is provided with a gas-phase cylinder valve and a gas-phase distribution pipe which are communicated with the evacuation and replacement unit, and a liquid-phase cylinder valve and a liquid-phase distribution pipe which are communicated with the neutralization unit. The liquid chlorine steel cylinder treatment device has the effect of solving the problems that existing liquid chlorine steel cylinder treatment is tedious in operation and low in efficiency, and potential safety hazards exist.

The utility model relates to a cylinder valve assembly welding roundness adjusting support. The cylinder valve assembly welding roundness adjusting support comprises a supporting base, a main beam, a supporting plate and a high-strength tip cone bolt. A rotary clamping groove is formed in the supporting base, the middle of the main beam is rotationally installed on the rotary clamping groove, supporting plates are symmetrically installed at the two ends of the main beam, threaded holes are formed in the supporting plates, high-strength tip cone bolts are installed through the threaded holes in a threaded mode, and the length of the main beam is designed according to the diameter of the cylinder valve. The tip cone bolt on the supporting plate is jacked outwards according to the required rotating length to adjust the roundness, and after the roundness meets the requirement, the tip cone bolt is loosened for roundness remeasurement after the roundness is fixed and kept for a period of time until the roundness meets the requirement in a free state; and the tip cone bolt slightly abuts against the inner wall of the cylinder valve for welding, operation is convenient, and the process is easy to control.

The invention discloses a cylinder valve abnormal closing fault judgment method and device, equipment and a storage medium. In the method, after a valve opening instruction is triggered, the first hydrogen initial amount is obtained according to the first temperature of each cylinder valve at the first moment and the first pressure value of gas in a high-pressure pipeline; according to the second temperature of each cylinder valve at the second moment and the second pressure value of the gas in the high-pressure pipeline, the first hydrogen remaining amount is obtained; obtaining first hydrogen consumption according to the current value output by the fuel cell system from the first moment to the second moment; obtaining a first hydrogen mass difference according to the first hydrogen initial amount, the first hydrogen residual amount and the first hydrogen consumption amount; judging whether the first hydrogen mass difference is greater than a first preset value or not; if the first hydrogen mass difference is larger than a first preset value, it is determined that the abnormal closing fault of the cylinder valve exists, and under the condition that cost is not increased, the abnormal closing fault of the cylinder valve is recognized.

The utility model discloses an integrated bottleneck valve capable of connecting a plurality of hydrogen cylinders in parallel, which relates to the technical field of bottleneck valves, and comprises a valve body and a plurality of parallel connection pipelines, and the valve body is provided with a plurality of interfaces used for connecting the plurality of parallel connection pipelines; a pressure pipeline is arranged in the valve body, a first-stage pressure reducing valve and a second-stage pressure reducing valve are connected to the pressure pipeline in series, and a hydrogen outlet is formed in the tail end of the pressure pipeline; the tail end of the parallel connection pipeline is connected with the hydrogen bottle group; according to the utility model, the plurality of ports of the valve body are connected with the plurality of parallel pipelines, and the hydrogen cylinders are connected and sealed through the screwed joints at the tail ends of the parallel pipelines, so that all hydrogen cylinders of the hydrogen cylinder group are connected in parallel and are communicated with the inner cavity of the valve body, and the pressure of all hydrogen cylinders is kept consistent; in addition, two-stage pressure reduction is carried out through the first-stage pressure reducing valve and the second-stage pressure reducing valve to ensure that the pressure of each hydrogen bottle is uniformly reduced, so that the problems that hydrogen supply of the hydrogen bottles lags behind and the system efficiency is reduced are solved, and the efficiency and the dynamic response speed of the fuel cell system can be effectively improved.

This hydraulic valve device (30) is interposed between a hydraulic pump (1) and a hydraulic cylinder (10) and a hydraulic motor (20), and performs oil supply control from the hydraulic pump (1) to the hydraulic cylinder (10) and the hydraulic motor (20) by operating valve elements (51, 52, 61) provided on a valve body (31), in which two cylinder valve elements (51, 52) and a motor valve element (61) are provided in parallel to each other, the two cylinder valve bodies (51, 52) independently control oil inlet throttling and oil return throttling for the hydraulic cylinder (10), the motor valve body (61) simultaneously controls oil inlet throttling and oil return throttling for the hydraulic motor (20), and pump oil supply ports (34a, 34b) connected with the hydraulic pump (1) are arranged on one side of the motor valve body (61) in the axial direction. A first actuator port (34e) and a second actuator port (34g) connected to the hydraulic motor (20) are provided side by side on the other side in the axial direction, thereby achieving miniaturization.

The invention provides a rotorcraft emergency floating device and method.The rotorcraft emergency floating device comprises a buoy assembly and an inflation assembly, and the buoy assembly comprises a right front buoy assembly, a left front buoy assembly and a rear buoy assembly and is used for providing buoyancy and floating stability for a rotorcraft; the inflation assembly comprises a cylinder valve assembly and a pipeline assembly, is used for inflating the buoy assembly and has a manual / dampening automatic starting function; a right front buoy assembly and a left front buoy assembly are symmetrically arranged on the left and right sides of the front machine body, and are cylindrical in packaging shape; the right front buoy assembly and the left front buoy assembly are in a capsule shape when being inflated and unfolded. The rear buoy assembly is of a flat box body structure in a packaging state and has a good aerodynamic configuration; the rear buoy assembly is of a three-buoy structure connected side by side in the inflated unfolding state.

The utility model relates to a pool discharges middle line type butterfly valve, including valve body, valve clapper, hard backrest valve seat, valve shaft and angle stroke single actuating air cylinder, the valve body is the elbow pipe structure, and the hard backrest valve seat sets up in the import end inboard of valve body, and the import end of valve body and hard backrest valve seat all are equipped with the through type upper neck and lower neck with valve shaft cooperation, and the angle stroke single actuating air cylinder is installed in the upper neck, the valve clapper is located in the hard backrest valve seat inboard, and the middle part of valve clapper is equipped with the intermediate hole with valve shaft cooperation, and one end of valve shaft is connected with angle stroke single actuating air cylinder, and the other end is connected with valve clapper through the intermediate hole, the valve body still is equipped with the full open limiting rib through the whole flow channel, and is cooperated with the full open position of valve clapper, compared with prior art, the sealing specific pressure of the utility model product can not change along with the rubber pressure variation or aging hardening, and the sealing is reliable, and the torque is constant, can bear high flow rate simultaneously and has low cost, has absolute competitive advantage in low pressure, high flow rate opening and closing frequent working condition.

The utility model discloses a chlorine steel cylinder valve protection device, which relates to the technical field of valve protection devices and comprises a steel cylinder body and a fixing block, the fixing block and a valve body are mounted at one end of the steel cylinder body, and the valve body is connected with the inner wall of the fixing block. A protection assembly for limiting the valve body is arranged on the outer wall of the valve body and comprises a threaded rod, a cavity and a protection ring, the cavity is formed in one end of the protection ring, and a positioning assembly for limiting the fixing block is arranged on the inner wall of the protection ring. The protection assembly is arranged to protect the valve body, damage of external force such as collision and scraping to the cylinder valve in the using process is reduced, integrity and sealing performance of the cylinder valve are protected, the sealing performance of the valve body is improved, the service life of the valve body is prolonged, the position of the protection assembly is effectively limited through the positioning assembly, and the service life of the valve body is prolonged. And the probability that the protection assembly shakes is reduced.

The invention discloses a heavy-load balancing platform cross-system safety linkage control method which comprises the following steps: acquiring target actions of an oil cylinder, and preprocessing the target actions of the oil cylinder to generate a synchronous action request set and a synchronous task table of an electric turning plate and a cantilever crane; based on the synchronous action request set and the synchronous task table, pumps and valves are scheduled, and an initial flow distribution scheme is generated in combination with the set priority and the distribution adjustment strategy; a valve port control instruction is generated according to the initial flow distribution scheme, and the opening degree of an oil cylinder valve port is regulated and controlled in response to the valve port control instruction; when the valve port control instruction is executed, the underframe posture, the turning plate angle and the boom position of the electric turning plate are monitored in real time, and a deviation rectifying instruction is generated when abnormity is monitored; and in response to the deviation correction instruction, the underframe posture and the turning plate angle of the electric turning plate and the position of the arm support are finely adjusted, the real-time execution state of the electric turning plate and the arm support after deviation correction is obtained, and the problem that all oil cylinders are not synchronous in response under transient flow impact is solved.

The utility model discloses a cylinder valve convenient to install, the cylinder valve is arranged at a bottle opening of a gas cylinder, the cylinder valve comprises a lower shell located in the bottle opening and an upper shell exposed out of the bottle opening, a plurality of channels are formed in the upper shell and the lower shell, each channel of the upper shell is independently provided with one of a main valve assembly, a stop valve assembly, an electromagnetic valve assembly or a TPRD assembly, and the stop valve assembly is arranged in the upper shell. Each channel of the lower shell is independently provided with one of an overflow valve assembly, a temperature sensor assembly and a one-way valve assembly, the channel provided with the temperature sensor assembly is communicated with the channel provided with the electromagnetic valve assembly, the temperature sensor assembly comprises a connecting pipeline, and the connecting pipeline is connected to the electromagnetic valve assembly along the channel. The temperature sensor assembly is communicated with the channel of the electromagnetic valve assembly, the connecting pipelines of the two assemblies needing to be in line connection with the vehicle end are combined together, and line connection is conducted from one line outlet, so that line disorder is avoided, the installation angle and the installation position can be adjusted according to the vehicle type, and the cylinder valve is convenient to install.

The invention discloses concentrated gas supply equipment for a hydrogen cylinder group, and relates to the technical field of gas treatment. Comprising an air supply cavity, one side of which is provided with at least two assembly ports and the other side of which is provided with a through hole; the main gas cylinder valve seat is assembled in the gas supply cavity and located at an assembly port of the central axis and used for being connected with a high-pressure gas storage cylinder; the auxiliary gas cylinder valve seat is assembled at the other assembly ports in the gas supply cavity and is used for being connected with a conventional gas storage cylinder; and the electric valve pipe is assembled at the through hole in the air supply cavity in a sliding manner. The high-pressure gas storage cylinder drives the wind wheel to rotate and drives the screw rod or the telescopic rod to move, then the electric valve pipe is pushed to move and is in linkage with the regulation and control mechanism, opening and cooperative gas supply of the auxiliary gas cylinder valve seat are automatically and mechanically triggered in the preferential gas supply state of the main gas cylinder, and the switching logic driven by a pure mechanical structure is achieved. The failure risk of electronic components in an extremely complex environment is avoided, and the high stability and reliability of the gas supply process are ensured.

The invention discloses a cylinder valve test system and a test control method, and relates to the technical field of valve test. Comprising an on-off test assembly, an accommodating chamber, a control assembly, a leakage detection assembly, an air source and an air treatment assembly, the accommodating chamber is a sealed cavity and is configured to accommodate a valve to be tested; the air treatment assembly is used for communicating with the containing chamber so as to adjust air parameters in the containing chamber, and the air parameters comprise the temperature; the on-off test assembly is used for driving the to-be-tested valve to open and close The gas source is used for communicating with the gas inlet end of a to-be-tested valve. The leakage detection assembly is used for detecting the leakage state of the to-be-detected valve. The control assembly is electrically connected with the air processing assembly, the on-off test assembly, the air source and the leakage detection assembly so as to control the air processing assembly, the on-off test assembly, the air source and the leakage detection assembly to operate according to a preset rule according to test requirements. According to the scheme, the actual working environment temperature of the cylinder valve is simulated, and the test result of the cylinder valve is more accurate.

The utility model relates to the technical field of pressure vessel manufacturing and processing, in particular to a pressure vessel sealing performance detection structure. The utility model discloses a pressure vessel sealing performance detection structure, which comprises a base and a support platform fixedly arranged at the upper end of the base, a slot with an upward opening is arranged in the base, and at least one interface for installing a pressure vessel is arranged on the support platform. A first valve allowing an external medium to enter the base and a second valve allowing the medium in the base to flow to the outside are arranged on the outer end face of the base, the open groove in the base forms a cavity allowing the first valve, the second valve and the connector to be communicated, and a fence-shaped structure is arranged on the supporting platform. The fence-shaped structure can prevent liquid located above the supporting platform from leaking between the supporting platform and the fence-shaped structure. The air tightness detection device has the advantage that the air tightness detection result of the pressure container can be visually fed back so as to ensure the accuracy of the air tightness detection result.

The application discloses a pressure reducing valve suitable for a soda water cylinder, which comprises a valve body, the valve body is provided with a cylinder mounting port and a gas outlet port, the valve body is provided with a pressure reducing mechanism, the pressure reducing mechanism comprises a valve core assembly, the valve core assembly is arranged in the valve body, the valve body is provided with a gas inlet assembly, the gas inlet assembly comprises a floating piston, the valve body is provided with a piston cavity, part of the floating piston is movably arranged in the piston cavity, the floating piston divides the piston cavity into a first cavity and a second cavity, the valve core assembly is located between the first cavity and the gas outlet port, the second cavity is in communication with the outside of the valve body, the valve body is provided with a through hole, the through hole is located between the piston cavity and the cylinder mounting port, part of the floating piston is movably arranged in the through hole, the floating piston is provided with a gas inlet channel, the gas inlet channel is in communication with the first cavity and the cylinder mounting port respectively, and when the first cavity is provided with compressed gas, the floating piston can be pushed to move towards the cylinder mounting port, so that the floating piston further pushes open the valve core of the cylinder valve, and labor is saved.

The utility model discloses a centering testing tool for a groove hole of a cylinder body valve plate, the cylinder body valve plate tested by the testing tool is of an L-shaped structure, one end of the cylinder body valve plate is provided with an X-direction transverse pipe, the shaft end of the transverse pipe is provided with a transverse hole prefabricated groove, the middle part of the cylinder body valve plate is provided with a Z-direction vertical pipe, and when the included angle between the axis of the transverse pipe and the axis of the vertical pipe is 90 degrees, the cylinder body valve plate is tested to be qualified; the centering inspection tool comprises an X-direction insertion rod and a Z-direction insertion rod, wherein the middle part of the Z-direction insertion rod is provided with a radial through inspection hole. The inspection end of the X-direction insertion rod is coaxially inserted into the transverse pipe in the X direction, and the periphery of the inspection end of the X-direction insertion rod is in sliding clearance fit with the inner wall of the inner hole of the transverse pipe and the inner wall of the inspection hole. The inspection end of the Z-direction insertion rod is coaxially inserted into the vertical pipe in the Z direction, and the periphery of the inspection end of the Z-direction insertion rod is in sliding clearance fit with the inner wall of the inner hole of the vertical pipe. The inspection tool effectively inspects the hole diameter and the hole axis included angle of the inner holes of the horizontal pipe and the vertical pipe in a simple insertion mode, and is simple in structure and easy to implement.

This utility model provides a pressure reducing valve fixing device and a gas cylinder chamber having the same. The pressure reducing valve fixing device includes a base and a top cover. A first mounting part is provided on the upper end surface of the base; a second mounting part is provided on the lower end surface of the top cover. The mounting groove formed by assembling the first mounting part and the second mounting part matches the circumferential direction of the pressure reducing valve, and the inner diameter of the mounting groove is larger than the maximum circumferential outer diameter of the pressure reducing valve. The mounting groove provides axial restraint for the pressure reducing valve installed therein. The pressure reducing valve fixing device provided by this utility model adopts a split base and top cover design, which is simple in structure, easy to manufacture, and has high shape accuracy, facilitating the assembly and replacement of the pressure reducing valve. The design of the mounting groove can provide axial restraint for the pressure reducing valve, effectively constraining the axial displacement of the pressure reducing valve, while retaining radial clearance, allowing the pressure reducing valve to have a small adjustment range in the radial direction, ensuring precise docking with the cylinder valve with axial offset.

The utility model relates to a gas cylinder fixing protective cap which is characterized in that four groups of arc-shaped holes (101) are formed in a main body cylinder (1), one side of each of the four groups of arc-shaped holes (101) is provided with a containing groove (102), and an adjusting groove (103) is formed in each containing groove (102); protective blocks (2) are connected in the storage grooves (102) in a sliding manner, and fixed rods (201) are fixedly connected to the protective blocks (2); a plurality of clamping rods (3) are arranged at one end of the main body cylinder (1), a movable cover (4) is in threaded connection with the other end of the main body cylinder (1), a rotating handle (5) and a driven gear ring (401) are arranged on the movable cover (4), a driving gear (501) is arranged on the rotating handle (5) and is connected with a linkage rod (8), and a limiting groove is formed in the linkage rod (8). The cylinder valve protection device has the advantages that the cylinder valve can be effectively protected, a worker can conveniently and better adjust the cylinder valve, and the cylinder valve is prevented from being operated by mistake.

The utility model provides a refrigerant manufacturing device. The refrigerant manufacturing device comprises a high-pressure suction and injection device, a proportioning balloon and a proportioning box provided with a containing space. The high-pressure suction and injection device comprises a high-pressure-resistant outer pipe, a threaded propeller and a needle cylinder valve used for preventing liquid leakage. The threaded propeller is in threaded connection with the high-pressure-resistant outer pipe, and one end of the threaded propeller is arranged in the high-pressure-resistant outer pipe; the needle cylinder valve is arranged at a suction and injection opening of the high-pressure-resistant outer pipe; the proportioning box is provided with a puncture device for puncturing the proportioning balloon; when the gaseous refrigerant is manufactured, the high-pressure suction and injection device injects the liquid refrigerant into the proportioning balloon, and the proportioning balloon is arranged in the containing space. According to the invention, the proportioning balloon is used for receiving the rapidly vaporized liquid refrigerant, transferring the liquid refrigerant into the proportioning box and then puncturing the liquid refrigerant, so that the technical effect of rapidly preparing the refrigerant is achieved.

Method for a power machine (10), comprising: to deactivate individual cylinder valve mechanisms according to a cylinder pattern chosen based on a knock value of each cylinder (14) of the power engine (10), wherein the selection involves selecting a first cylinder (14) which has a knock value above a threshold for deactivation, while a second cylinder (14) with a knock value below a threshold remains active during deactivation, characterized by the fact that the first cylinder (14) remains deactivated for a number of power engine cycles, the number being based on the temperature of the first cylinder (14), the number of power engine cycles being increased if the temperature of the first cylinder (14) rises above a threshold, the temperature of the cylinder (14) including a measured or derived cylinder internal temperature.

The invention discloses a hand valve mechanism for a hydrogen storage bottle valve, which comprises a bottle valve body and a hydrogen flow channel arranged in the bottle valve body, a hand valve assembly and a valve body state indicator are arranged in the bottle valve body, the hand valve assembly is used for opening / closing the hydrogen flow channel, and the valve body state indicator displays the opening / closing state of the hydrogen flow channel. A main body of a valve rod of the hand valve assembly is arranged in the outer cavity and limited through a step structure, the outer end of the valve rod is limited through a baffle, the inner end of the valve rod extends to the inner cavity, a valve element is arranged in the inner cavity, the valve element is in transmission connection with the inner end of the valve rod, and the valve element can move under the transmission action of the valve rod to open / close the hydrogen flow channel. Through mechanical linkage of the hand valve assembly and the valve body state indicating piece, the state display part is synchronously driven to switch the visual state when the hand valve is operated, and the problem that the opening and closing state of a traditional hand valve cannot be visually judged is solved.

The invention discloses an anti-freezing control method, system and equipment for a hydrogen storage system of a fuel cell vehicle. The anti-freezing control method for the hydrogen storage system of the fuel cell vehicle comprises the steps that whether an awakening strategy of the hydrogen storage system is executed or not is judged; when the wake-up strategy of the hydrogen storage system is executed, environment information is obtained; determining the wake-up frequency and the wake-up duration of the hydrogen storage system according to the environment information; and during the wake-up period of the hydrogen storage system, opening a cylinder valve of the hydrogen storage system. By the adoption of the method, the awakening strategy of the hydrogen storage system is adjusted according to the environment condition of the fuel cell vehicle, the influence of icing of the hydrogen storage system on vehicle starting and running can be effectively reduced or even avoided, energy loss caused by frequent opening of a cylinder valve is reduced in the environment where icing is not prone to occurring, and the service life of the vehicle is prolonged. Therefore, more accurate anti-freezing control of the hydrogen storage system is realized.

The present application relates to a lifting and carrying dual-purpose vehicle for disassembling and assembling reciprocating compressor components, and a disassembling and assembling method. The dual-purpose vehicle is used for disassembling and assembling an air inlet valve assembly located in a 45-degree downward inclined cylinder valve cavity of a reciprocating compressor and an air outlet valve assembly located in a 45-degree upward inclined cylinder valve cavity of the reciprocating compressor. The dual-purpose vehicle comprises a walking mechanism, a lifting mechanism and a lifting and carrying mechanism arranged on the walking mechanism. The lifting mechanism is used for lifting the air outlet valve assembly to adjust the angle and move the air outlet valve assembly into or out of the 45-degree upward inclined cylinder valve cavity of the reciprocating compressor, and lifting the air inlet valve assembly to move the air inlet valve assembly to the lifting and carrying mechanism under the cooperation of the walking mechanism. The present application can meet the lifting needs of the air outlet valve assembly and the lifting, disassembling and assembling needs of the air inlet valve assembly, and is a machine with two functions, thereby improving the work efficiency. The conventional cranes, travelling cranes and gantry cranes cannot realize the lifting, disassembling and assembling of the air inlet valve assembly.

The present invention relates to a cylinder valve for compressed natural gas cylinder with integrated pressure reducing function, which is connected to a general burner in a plug and play manner. The cylinder gas of the present invention is improved to increase the safety of gas use and to make it easier to adjust the required gas flow rate. The cylinder valve comprises a first part as an improved part, a second part as a main part directly connected to compressed natural gas, and a third part as an evaporator part. The second part contains a diaphragm in order to accelerate the gas flow, and the third part is an evaporator which is used to overcome the clogging by accelerating the evaporation of the clogging formed due to the cooling caused by the pressure drop.