63results about How to "Avoid Burst Accidents" patented technology

The invention relates to a mechanical speed controller used for controlling running speed of a tube cleaner and a defect detection device in a pipe cleaning and defect detection process of natural gas pipes on active service and a pressure test and discharging process of pipelines under construction. The controller can control the speed of the tube cleaner to be in a certain range and solve the problem that the existing tube cleaner is impacted due to the fact that the speed cannot be controlled and a detector is inaccurate in detection due to the fact that the speed is too high. Four support wheels are arranged at two ends of a barrel body respectively, and two speed collection wheels are symmetrically arranged on two sides of the barrel body through support rods and connected through a spring. A belt wheel A is coaxially installed on the speed collection wheels and connected with a belt wheel B on the end portion of a central shaft through a belt. A sleeve is installed in the middle section of the central shaft, a fixed barrel is installed on the tail section, and a rotating barrel is sleeved on the outside of the fixed barrel. One end of a connection rod A and one end of a connection rod B are hinged to a mass block, the other ends of the connection rod A and the connection rod B are connected with the sleeve and the rotating barrel respectively, a connection rod C is connected with the end portion of the fixed barrel and a friction block, and a connection rod D is connected with the end portion of the barrel body and a friction block. The speed controller is simple in structure, free of delaying, safe and reliable and has no electric appliance components.

The invention discloses a forced water circulation high-capacity hot water boiler of a circulating fluidized bed, which relates to a hot water boiler of a fluidized bed, and aims to ensure water circulation safety and power failure protection of a high-capacity hot water boiler of a circulating fluidized bed. A water supply distribution header is connected with lower coal economizers; the lower coal economizers, middle coal economizers and upper coal economizers are sequentially connected with one another; the upper coal economizers are connected with a coal economizer upper header; the coal economizer upper header is connected with a collection water bag by a coal economizer coating pipe; the collection water bag is connected with water cooling wall lower headers by a descending pipe; the water cooling wall lower headers are connected with a hearth water cooling wall; the hearth water cooling wall is connected with water cooling wall upper headers; the water cooling wall upper headers are connected with a boiler cylinder by extraction pipes; the water supply distribution header is connected with a separator water cooling sleeve by a water cooling sleeve water intake pipe; the separator water cooling sleeve is connected with the boiler cylinder by a water cooling sleeve water outlet pipe; the boiler cylinder is connected with the water cooling wall lower headers by communicating pipes, and is connected with the water supply distribution header by a power failure water supply pipe. The forced water circulation high-capacity hot water boiler provided by the invention is applied to large concentrated heat supply and warming.

The invention relates to a solar automatic soaking and gathering-heat pipe, a slot-typed assembly, a thermal power generating system and a craft. The solar automatic soaking and gathering-heat pipe comprises a glass tube and an absorption tube which is installed inside the glass tube and is coated with an endothermic layer. Vacuum is arranged between the glass tube and the absorption tube. The solar automatic soaking and gathering-heat pipe is characterized in that segregation board which is used for enabling fluid to turn flow up and down alternatively in the absorption tube and is installed inside the inner chamber of the absorption tube. The segregation board is in a heliciform and is fixed in the absorption tube enabling the solar automatic soaking and gathering-heat pipe to be filled with water to heat directly without the worry of booster. Meanwhile, the electrical power generating system and the craft through photo-thermal supplementary electricity generation enables the photo-thermal supplementary power station to be unaffected by the weather so that the electricity can be generated steadily at night or when the sunlight is inadequate. Energy conservation and environment protection can be achieved.

The invention provides an anti-pipe-blocking detection device, a spraying device, a pipeline material recycling method and a pipeline cleaning method. The anti-pipe-blocking detection device comprisesa valve body, an adjusting assembly and a proximity switch; the valve body is provided with a passage for connecting a to-be-detected pipeline and a branch communicating with the passage; the adjusting assembly is assembled in the branch, and the adjusting assembly comprises a piston matched with the branch, an elastic body acting on the piston and an end cover connected to the end of the branchin the mode of being capable of moving relative to the branch; and the proximity switch is assembled on the valve body and is arranged corresponding to the piston. The anti-pipe-blocking detection device is simple in structure, a related hydraulic system does not need to be additionally arranged, the pressure in the to-be-detected pipeline can be continuously adjusted, the pressure relief can be conducted on the pipeline in time when pipe blockage occurs, and pipe explosion accidents are avoided; according to the spraying device, residual materials in the pipeline can be collected back to a material barrel, and materials are saved; and the pipeline can be cleaned, the damage to devices due to material solidification is avoided, and therefore the service life is prolonged.

The invention provides a hollow glass door and a manufacturing method thereof. The hollow glass door comprises a door frame, an outer glass panel and an inner glass panel. The outer glass panel and the inner glass panel are mounted on the door frame. The hollow glass door further comprises a spacing assembly which comprises a spacer and a waterproof gas-permeable membrane. The spacer is clamped between the outer glass panel and the inner glass panel in a sealing mode. A plurality of air holes are formed in the spacer, and the waterproof gas-permeable membrane is attached to the spacer and covers the air holes. The air holes are covered through the waterproof gas-permeable membrane; and during the practical using process, when the pressure of a cavity formed between the glass panels is not equal to the outside pressure, outside air can flow between the cavity between the glass panels and the outside environment through the air holes, so that the air pressure balance inside and outside the hollow glass door is guaranteed, glass bursting accidents due to large inside and outside pressure differences are avoided, and the safe reliability of the hollow glass door is improved.

The invention discloses a remote automatic monitoring system for secondary water supply. The sensor monitors the water flow information of the outlet pipe; equipped with a video acquisition module to obtain video information around the secondary water supply equipment, equipped with a pressure sensor to monitor the water pressure information in the outlet pipe, when the water pressure information / water flow information exceeds the preset water pressure threshold / When the preset water flow threshold reaches the preset time, the alarm module is controlled to issue an alarm, which realizes the remote status monitoring and safety monitoring of the secondary water supply equipment, and improves the safety of the equipment; the timing module and the water level sensor realize the timing and quantitative water addition of the secondary water supply equipment. Function, reduce manpower input and improve work efficiency; access control management module is used to manage the entry and exit of personnel, which improves the safety of secondary water supply equipment.

The invention discloses a sewer well lid. According to the sewer well lid, eighteen gas-permeable holes are dispersedly formed in a well lid body to automatically disperse biogas in a sewer from the gas-permeable holes, so that high-concentration biogas is effectively prevented from remaining in the sewer, and pipe explosion accidents are avoided; the components and the production process of the well lid are redesigned, the bearing capacity of the well lid is not affected even if a large number of gas-permeable holes are formed, actually the load of the well lid reaches up to 60 tons through the new components and the new process, and the load of the conventional well lid on the market is only about 40 tons, so that the service life of the well lid is remarkably prolonged; and the invention further provides a well lid assembly comprising the well lid, and an anti-falling net is arranged on the well seat of the well lid assembly, so that people are prevented from falling into a well accidentally after the well lid is opened so as to improve the safety of the well seat assembly.

The invention discloses NFWGIII-type multistage tank body water supply equipment, which comprises a control system and a flow stabilizing tank device which is arranged between a water supply main pipe and a water discharging main pipe, wherein the flow stabilizing tank device, as a multistage tank body structure, comprises a flow stabilizing tank and a voltage supplementing tank body; a voltage supplementing capsule body is arranged in the voltage supplementing tank body; a water inlet branch pipe, which is connected to the voltage supplementing tank body, is arranged on the water supply main pipe; the water outlet of the water inlet branch pipe communicates with an opening of the voltage supplementing capsule body; the flow stabilizing tank body is connected to the voltage supplementing tank body by virtue of a negative pressure inhibiting device; the negative pressure inhibiting device is connected to the control system; and the negative pressure inhibiting device communicates with a cavity of the voltage supplementing tank body outside the voltage supplementing capsule body by virtue of a pipeline. The water supply equipment, through a cooperated operation with the multistage tank body structure, offers voltage supplementing double guarantee by virtue of the voltage supplementing capsule and gas, so that a negative-pressure inhibiting effect of municipal water supply is enhanced and the safe running of a municipal pipe network is guaranteed.

The invention relates to carbon dioxide cracking devices, in particular to explosion-proof safety carbon dioxide cracking equipment. The explosion-proof safety carbon dioxide cracking equipment comprises a pipe, a liquid storage cavity is formed in the pipe, and an energy charging head is further arranged on the pipe. A pressure relief channel enabling the liquid storage cavity to communicate with the outside and a liquid charging opening communicating with the pressure relief channel are formed in the energy charging head. An explosion-proof safety sheet arranged in the pressure relief channel and used for blocking the pressure relief channel and a gas locking part which is located on the explosion-proof safety sheet and can vertically move in the pressure relief channel are further included. The explosion-proof safety sheet is adopted for preventing the accidental exploding situation of the carbon dioxide cracking equipment, pressure generated inside becomes large to be larger than pressure intensity capable of being borne by the explosion-proof safety sheet, and the explosion-proof safety sheet can crack to enable the liquid storage cavity to communicate with the outside; and air pressure in the liquid storage cavity can be released, and the cracking accident caused by increase of the internal air pressure is effectively avoided.

The invention discloses a friction plate motorcycle clutch whose outer cover has high tensile strength, uneasy to crack, where the outer cover is provided with a runner adapting to external teeth on an active friction plate, and the outer cover is of a continuous integrated structure formed by punching and stretching. In addition, the circumference of outline of the external cover is provided with grooves or grooves plus through holes to make the external cover be of a vane shape, thus improving heat radiating property of the clutch, avoiding the damage to the friction plate by overhigh temperature and preventing the clutch skidding. Besides, it can be widely applied to motorcycles.

The invention discloses a forced water circulation high-capacity hot water boiler of a circulating fluidized bed, which relates to a hot water boiler of a fluidized bed, and aims to ensure water circulation safety and power failure protection of a high-capacity hot water boiler of a circulating fluidized bed. A water supply distribution header is connected with lower coal economizers; the lower coal economizers, middle coal economizers and upper coal economizers are sequentially connected with one another; the upper coal economizers are connected with a coal economizer upper header; the coal economizer upper header is connected with a collection water bag by a coal economizer coating pipe; the collection water bag is connected with water cooling wall lower headers by a descending pipe; the water cooling wall lower headers are connected with a hearth water cooling wall; the hearth water cooling wall is connected with water cooling wall upper headers; the water cooling wall upper headers are connected with a boiler cylinder by extraction pipes; the water supply distribution header is connected with a separator water cooling sleeve by a water cooling sleeve water intake pipe; the separator water cooling sleeve is connected with the boiler cylinder by a water cooling sleeve water outlet pipe; the boiler cylinder is connected with the water cooling wall lower headers by communicating pipes, and is connected with the water supply distribution header by a power failure water supply pipe. The forced water circulation high-capacity hot water boiler provided by the invention is applied to large concentrated heat supply and warming.

The invention discloses an oil and gas pipeline intelligent internal detection device based on multi-module combined location. The device comprises an internal detector arranged inside an oil and gas pipeline and a floor marker arranged outside the oil and gas pipeline. The internal detector comprises a driving system, a magnetic leakage detecting system, a speed control system, a distance measuring system and a low frequency emitting system, wherein the driving system, the magnetic leakage detection system, the speed control system, the distance measuring system and the low frequency emitting system are relatively fixedly connected together; the floor marker at least comprises a low frequency receiving system; the low frequency emitting system is used for sending detection results obtained by the magnetic leakage detection system out of the oil and gas pipeline; the low frequency receiving system is used for receiving low frequency electromagnetic pulse signals transmitted by the low frequency emitting system. The oil and gas pipeline intelligent internal detection device based on the multi-module combined location can timely obtain the detection data of the pipeline detector and analyze the detection data and accordingly rapidly determine the defect conditions of the pipeline.

The invention discloses a device for preventing oxide skin blockage of a superheater and a reheater of a boiler and a regulation and control method of the device. A sectional type inlet header corresponds to a group of single-screen heat exchange tube bundles, the group of single-screen heat exchange tube bundles comprises a plurality of single-screen heat exchange tube bundles, and each single-screen heat exchange tube bundle comprises a heat exchange tube body; the heat exchange tube body comprises a heat exchange tube inlet end, a first heat exchange tube straight-flow section, a bent tube section, a second heat exchange tube straight-flow section and a heat exchange tube outlet end; the bent pipe section comprises a bent pipe inlet end, a bent pipe horizontal section and a bent pipe outlet end; outlets of the sectional type inlet headers are communicated with the outlet header sequentially through the corresponding heat exchange pipe inlet ends, the first heat exchange pipe direct flow sections, the bent pipe inlet ends, the bent pipe horizontal sections, the bent pipe outlet ends, the second heat exchange pipe direct flow sections and the heat exchange pipe outlet ends, and the adjacent sectional type inlet headers are communicated through a two-way pneumatic adjusting valve. The device and the regulation and control method thereof can realize dredging and recovery of the oxide skin in the boiler tube bundle of the generator set.