984 results about "Piston ring" patented technology

The invention discloses an anti-liquid-impact compressor cylinder structure, a compressor and a wellhead natural gas compression method, and relates to the technical field of compressors, the cylinder structure comprises a cylinder barrel and a piston ring assembly, a piston cavity is formed in the cylinder barrel, the cylinder structure further comprises a partition plate, the partition plate divides the piston cavity into a working cavity and a buffering cavity, and the piston ring assembly is arranged in the working cavity; the communication channel is used for realizing mutual communication of the working cavity and the buffer cavity on the two sides of the partition plate; the partition plate is configured in the mode that when the pressure difference between the pressure of the working cavity and the pressure of the buffer cavity exceeds a set threshold value, the fixed relation of the partition plate in the piston cavity is damaged under the pressure difference between the two sides of the partition plate, the partition plate can move towards the side where the buffer cavity is located under the pressure difference, the compressor comprises the cylinder body structure, and the compression method is achieved based on the cylinder body structure. According to the scheme, the maximum pressure in the cylinder is reduced by adopting a method of expanding the clearance volume of the cylinder body when the liquid impact phenomenon occurs, and the response speed in the clearance volume expanding process can be effectively optimized.

The invention discloses a wellhead natural gas compressor cylinder body structure, a compressor and a working method of the compressor, and relates to the technical field of compressors, the cylinder body structure comprises a cylinder barrel, the cylinder barrel comprises an outer cylinder barrel and an inner cylinder barrel, the inner cylinder barrel is embedded in a center hole of the outer cylinder barrel, and a piston cavity of the cylinder barrel is formed by a center hole of the inner cylinder barrel; the inner wall of the outer cylinder barrel and the outer wall of the inner cylinder barrel are each provided with a spiral groove with a semi-annular cross section, the spiral grooves of the outer cylinder barrel and the outer wall of the inner cylinder barrel define a spiral flow channel which extends in the axis direction of the cylinder barrel, the cross section of the spiral flow channel is annular, and the spiral flow channel is provided with a medium leading-in hole and a medium leading-out hole which are located in the surface of the outer cylinder barrel. The compressor comprises the cylinder body structure, and the working method is the working method of the compressor. According to the scheme, the temperature difference of different positions of the inner wall of the cylinder can be effectively reduced, the purposes of reducing air leakage of a piston ring and optimizing the volume of the compressor are achieved, and the purposes of reducing deformation of different positions of the inner wall of the cylinder and optimizing vibration in the working process of the compressor are achieved.

The invention relates to the technical field of compressors, and discloses a gas piston assembly for an ultrahigh-pressure liquid-driven piston compressor, which comprises a gas piston main body, a sealing piece and a connecting piece, the air piston body comprises a first body part and a second body part which are oppositely arranged, a cylindrical protruding part is arranged in the center of the end face of one side of the first body part, and a positioning inserting hole matched with the cylindrical protruding part is formed in the center of the end face of the side, right opposite to the first body part, of the second body part. The sealing piece comprises a plurality of first piston rings and a plurality of second piston rings, the first piston rings and the second piston rings are arranged on the cylindrical protruding part in a sleeving mode and are alternately arranged, and the first piston rings are arranged close to the end face of the first main body part; the connecting piece is used for connecting the first main body part and the second main body part together after the cylindrical lug boss is inserted into the positioning insertion hole; the combined piston ring is used for replacing a traditional spring plug structure for sealing, and the sealing problem caused by extremely high pressure and temperature under the ultrahigh pressure working condition can be solved.

The invention discloses an intelligent control valve with a self-adaptive sealing structure, and relates to the technical field of valves, the intelligent control valve comprises a valve main body, a self-adaptive sealing mechanism is arranged in the valve main body, a control box matched with the self-adaptive sealing mechanism is arranged on the valve main body, and the valve main body comprises a valve body, a valve rod and a gate plate; a valve seat groove in sliding fit with the gate plate is formed in the valve body, the self-adaptive sealing mechanisms comprise sealing bottom rings, sealing side rings, piston rings and sealing gaskets and are installed on the left side and the right side of the valve seat groove, and the control box comprises a box body, a controller, a pressure regulating pipe and a motor and is installed at the lower end of the valve body. The valve has the advantages of automatically compensating sealing abrasion, monitoring the sealing state in real time and intelligently regulating and controlling, and the problems that a traditional valve is poor in sealing performance, high in maintenance cost and lack of real-time monitoring are solved.

The invention discloses a PDC drill bit capable of adapting to geology, and relates to the technical field of drill bits. The drill bit comprises a threaded mounting block, the top of the threaded mounting block is fixedly connected with a mounting column, the top of the mounting column is rotatably connected with a drill bit body, the top of the drill bit body is fixedly connected with blades, the bottom of the drill bit body is provided with an output shaft groove, and the top of the drill bit body is provided with an adaptive adjusting mechanism. And the adaptive adjusting mechanism comprises a bin body, an oil cavity, a communicating path and a bit leg, the bin body is formed in the mounting column, and the oil cavity is formed in the top of the drill bit body. Through the arrangement of the adaptive adjusting mechanism, when the drill bit body is used for drilling work, the micro motor can be started to drive the threaded rod to rotate according to different geologies, and at the moment, the height of the roller bit body can be adjusted through cooperation of the lifting column, the piston ring, the oil cavity, the piston rod and other assemblies so as to adapt to drilling work of different geologies.

The invention provides an intelligent cleaning control method and system for an engine piston ring, and the method comprises the steps: building a dynamic cleaning path through obtaining the residue phase change gradient, the laser beam incident angle, the roughness and the oxide layer thickness data of a laser thermodynamic action region on the surface of the piston ring; in the cleaning process, based on oxide layer thickness distribution, a deep learning model is used for generating target scanning frequency offset in real time, and laser power density and focusing depth parameters are further optimized. And by dynamically adjusting laser energy distribution, precise removal of residues is achieved, and meanwhile a piston ring base material is protected. The cleaning precision of the engine piston ring is improved.

The invention belongs to the technical field of tensile experiment devices, and particularly relates to a metal rod tensile experiment device which comprises a rack, a supporting table and a tensile assembly, the supporting table and the tensile assembly are installed on the rack, and a fixing assembly is arranged on the surface of the supporting table. By arranging the stretching assembly, when the sliding block ascends, a nylon rope can pull a piston ring to extrude air in a second empty bin to enter a first empty bin through a groove, so that a supporting rod is pushed to slide upwards, and an upward thrust is applied to the sliding block; according to the high-precision lead screw, the situation that the precision of the high-precision lead screw is reduced due to the fact that a threaded groove of the high-precision lead screw is damaged by downward force applied to the surface of the sliding block through a cross beam by a metal rod can be effectively prevented; and the connecting plate is lifted upwards, the connecting rod is pushed to be jacked upwards, and limiting on the groove is relieved, so that the high-precision lead screw is prevented from continuously driving the sliding block to slide downwards.

The invention discloses a novel plug-in type glass fiber reinforced plastic air duct, and relates to the technical field of glass fiber reinforced plastic air ducts. The novel plug-in type glass fiber reinforced plastic air duct comprises a duct body, a plug-in section is arranged at the left end of the duct body in a sealing and sliding mode through a piston ring, a clamping ring is fixed to the left end of the plug-in section, and a check ring is fixed to the inner wall of the duct body; the sealing adjusting assembly is mounted on the inner wall of the socket section through two sliding grooves; and the auxiliary dismounting assembly is arranged between the mounting frame and the sealing adjusting assembly. The sealing ring tightly attached to the outer wall of the inserting section is arranged on the inner wall of the socket section, so that the sealing performance of the inserting structure is improved; the sealing adjusting assembly is arranged, the sealing ring is opened in the inserting process of the inserting section, and the friction resistance during inserting is reduced; by arranging the inserting section capable of being adjusted in a sliding mode and the auxiliary disassembling assembly, the inserting section can be slidably contained in the barrel body during disassembling, the two ends of the middle-section glass fiber reinforced plastic air barrel and the other glass fiber reinforced plastic air barrel are not partially overlapped, and therefore the middle-section glass fiber reinforced plastic air barrel can be rapidly separated from the air barrels at the two ends, and the maintenance and replacement efficiency is improved.

A combined piston ring used for a new energy hybrid power automobile engine belongs to the technical field of engines and comprises a ring body inner plate in contact with the inner side face of a main body mechanism, an ash discharge groove formed in the ring body inner plate, a scraping plate installed in a groove formed in the ring body inner plate and a plurality of shaking reeds evenly distributed between the two ring bodies. The scraping plate is in contact with the inner wall of a groove formed in the piston; in the working process of an engine, residual carbon deposits on the inner wall of a groove formed in a piston are scraped off in the rotating process of a scraping plate, the carbon deposits enter an ash discharging groove along an inclined face arranged on the scraping plate, a connecting plate makes contact with a shaking reed in the rotating process so that the shaking reed can be intermittently compressed and bounced off, the carbon deposits in the shaking reed can be prevented from being accumulated into blocks, and the service life of the connecting plate is prolonged. The carbon deposition can be effectively prevented from being accumulated in a gap between the piston ring and the piston, the piston ring is blocked, and the work of the piston is influenced.

The utility model belongs to the technical field of glass fiber production, and particularly relates to a novel multi-drawing wire drawing machine head with a modular structure. The machine head comprises a machine head main shaft, an upper wire ring, a pull rod seat, a broken bridge type expansion sheet and a plurality of sections of sectional type aluminum rotary drums, expansion piece telescopic mechanisms are arranged between the upper wire ring and the sectional type aluminum rotary drum, between the sectional type aluminum rotary drum and the pull rod base and between every two adjacent sections of sectional type aluminum rotary drums. The expansion piece telescopic mechanism comprises a piston ring, a slope sliding block ring, a connecting rod sliding block, a connecting rod, a sliding block ring top spring, a sliding block tension spring and an expansion piece tension spring. According to the novel multi-split wire drawing machine head with the modular structure, the technical problems that the machining difficulty of an ultra-long aluminum rotary drum and an ultra-long expansion sheet is large, the machining quality cannot be guaranteed, and disassembly and assembly are difficult during assembly and maintenance are solved; and meanwhile, the control precision and the expansion piece stretching efficiency are improved, and the power consumption of the wire drawing machine is reduced.

In order to enable improvement with respect to recycling performance, achieve further reduction in weight, and improve environmental performance, a cylinder liner (30) according to the present disclosure has a structure in which, out of an inner face (21i) of a cylinder (21) in a reciprocating engine, the cylinder liner is provided in only a partial region over which a piston ring (50) fit onto a piston (40) that performs reciprocal motion in the cylinder (21) slides, and a liner entire length L along an axial direction of the cylinder (21) is smaller than an inner diameter B of the cylinder, and recessed and protruding forms are formed on one lower end portion (30d) that is an end portion toward a bottom dead center side of the piston ring (50) in the axial direction.

The utility model relates to the technical field of engine detection, and discloses an engine air leakage detection device comprising a support frame; the nitrogen supply part is arranged on the support frame and is connected with any one of a plurality of cylinders of the tested engine; the first gas detection part is used for detecting the gas leakage amount of a cylinder gasket between the detected cylinder and the adjacent cylinder; the second gas detection component is used for detecting the gas leakage amount of the exhaust valve; the third gas detection component is used for detecting the gas leakage amount of the intake valve; the fourth gas detection part is connected with an oil filler cap of the detected engine and is used for detecting the gas leakage rate of the piston ring; and the fifth gas detection part is connected with the cooling liquid degassing pipe and is used for detecting the gas leakage amount of the detected air cylinder leaking gas to the cooling liquid channel of the detected engine through the air cylinder gasket. The detection device can perform leakage test on a plurality of parts at the same time, and the integration level is high.

The utility model discloses an inner cooling oil chamber, oil cooling piston and engine, including: inner cooling oil chamber body, including oil chamber body lower part and oil chamber body upper part, oil chamber body upper part at least includes first vortex area and second vortex area, first vortex area is closer to piston center than second vortex area, and the first vortex area is closer to piston center than second vortex area. The second vortex region is closer to the piston ring groove than the first vortex region. Engine oil is sprayed into the oil inlet channel through an engine oil pump and enters the inner cooling oil cavity body through the oil inlet channel. Along with rapid and high-frequency up-and-down movement of the piston, engine oil continuously collides with the upper wall face and the lower wall face of the inner cooling oil cavity body under the action of inertia force, part of the engine oil impacts the first vortex area to form a first vortex, and part of the engine oil impacts the second vortex area to form a second vortex. The contact area of engine oil and the inner cooling oil cavity body is increased, the flowing speed of the engine oil in the vortex area is higher, a better cooling effect is generated, the temperature of a piston can be more effectively reduced, and the phenomenon that the engine oil in the inner cooling oil cavity is coked is reduced.

The invention discloses a withstand voltage tester with a protection function, and belongs to the technical field of withstand voltage testers. When the withstand voltage tester leaks electricity, after an electromagnet is powered off, no magnetic force is generated between a magnetic attraction block and the electromagnet, and the elastic support of a second spring can drive a pull plate to move; the pull plate drives the clamping block to horizontally move and is separated from the clamping groove in the electroprobe connecting seat, the electroprobe connecting seat is in a free moving state in the terminal sleeve, and then the first spring drives the piston ring to move in the cavity of the fixing ring through the elastic support of the first spring in the fixing ring; the piston ring drives the pressing ring to move outwards and extrudes the connecting plug on the electroprobe connecting seat, the connecting plug can be separated from the power connection terminal and pop out of the terminal sleeve after being pushed, the purpose of rapidly separating the power connection terminal from the connecting plug is achieved, the connection state between the electroprobe assembly and the tester main body can be cut off in time, and the testing efficiency is improved. Threatening of electric leakage to personal safety is prevented, and the use safety of the withstand voltage tester is improved.

The invention discloses a volume type hydrogen compressor cylinder body structure and a hydrogen compressor system, and belongs to the technical field of compressors, the compressor system comprises the cylinder body structure, the cylinder body structure comprises a cylinder body, piston assemblies and a piston rod, and the piston assemblies comprise the first piston assembly and the second piston assembly; each of the first piston assembly and the second piston assembly comprises a piston ring and a guide ring; an air guide hole is formed in the piston rod, an annular groove is formed between the first piston assembly and the second piston assembly, and one end of the air guide hole communicates with the annular groove; the pressure sampling device further comprises a pressure sampling cylinder, a cavity is formed in the pressure sampling cylinder, and when the piston assembly is in the gas compression stroke, the other end of the gas guide hole is communicated with the cavity. And the pressure sensor is used for measuring the pressure in the cavity. According to the structural design provided by the scheme, online monitoring of the sealing condition of the piston assembly and the air cylinder wall can be achieved, and compared with technologies based on vibration monitoring, sound wave monitoring and the like, adverse effects of the data extraction and analysis process on the monitoring result can be avoided.

A piston ring seal arrangement of a gas turbine engine includes a piston ring having a circumferentially split ring configuration having a first axially-facing side and a second axially-facing side opposite the first axially facing side. The piston ring includes a first circumferential end circumferentially overlapping a second circumferential end. The piston ring is installed into a groove in a mating component. The first circumferential end and the second circumferential end define a plurality of edges on the first axially-facing side and the second axially-facing side. The first axially-facing side includes fewer edges than the second axially-facing side, and an operating pressure acting on the piston ring is greater at the second axially-facing side than at the first axially-facing side.

An axle assembly having a clutch collar. The axle assembly includes a shaft, a piston, a bearing assembly, and the clutch collar. The piston encircles the clutch collar. The bearing assembly extends from the piston to the clutch collar and facilitates rotation of the clutch collar with respect to the piston.

The invention belongs to the technical field of positive displacement vacuum pumps, and particularly relates to a sealing mechanism of a vacuum pump, which comprises a labyrinth seal and a piston ring seal, the left and right sides of the labyrinth seal and the piston ring seal in the axial direction are respectively provided with an oil cavity and a pump cavity; the radial inner and outer sides of the labyrinth seal and the piston ring seal are respectively provided with a rotor shaft in a pump cavity and an oil tank side sealing plate in an oil cavity; the labyrinth seal comprises a labyrinth seal moving ring and a labyrinth seal static ring, the labyrinth seal moving ring is arranged on the rotor shaft in a sleeving mode and is in linkage with the rotor shaft, and the labyrinth seal static ring is arranged on the labyrinth seal moving ring in a sleeving mode and is fixedly connected with the oil tank side sealing plate; the piston ring seal comprises at least one piston ring; a piston groove is formed in the rotor shaft; or the rotor shaft is sleeved with a piston shaft sleeve, and a piston groove is formed in the outer surface of the piston shaft sleeve; the piston ring is accommodated in the piston groove. Non-contact sealing is completely adopted, the problems of friction heat generation, friction abrasion and the like of a contact lip seal are avoided, the use power consumption of the pump body is reduced, and the quality inspection cost and the manufacturing cost are reduced.

To provide a piston of a compressor which enables improvement of strength compared to conventional arts.SOLUTION: A piston of the invention includes: a resin formation part 36 (a resin piston body) which reciprocates in a cylinder in the axial direction of the cylinder; and a metallic insert component which is embedded in the resin formation part 36 and connected to a connecting rod. The resin formation part 36 has a peripheral groove 33b, in which a piston ring is fitted, on a spherical-shaped circumferential wall surface. The peripheral groove 33b has an inclination different from that of the upper surface of the resin formation part 36 when the resin formation part 36 is viewed from a side surface and has a first groove wall 33b1 and a second groove wall 33b2 facing in a groove width direction in a written order from the piston head 33c side of the resin formation part 36. A gate resin cutting part 33d in the resin formation part 36 is located closer to the connecting rod side than the first groove wall 33b1 of the peripheral groove 33b.SELECTED DRAWING: Figure 4

The invention relates to turning and grinding composite equipment for machining an outer circle and an annular groove of a steel piston and a using method of the turning and grinding composite equipment, and belongs to the technical field of piston machining equipment. The equipment comprises a base, a stand column, a left planker, a right planker, a left workbench, a right workbench, a tool turret, a static pressure electric spindle and a rotating spindle, the stand column is arranged on one side of the base, and the left planker and the right planker are horizontally arranged on the two sides of the stand column respectively through servo lead screw systems; the left carriage and the right carriage are vertically provided with a left workbench and a right workbench through servo lead screw systems respectively, the left workbench is provided with a tool turret, the tool turret is provided with a machining tool, the right workbench is provided with a static pressure electric spindle, the lower end of the static pressure electric spindle is provided with a grinding wheel, and the other side of the base is provided with a rotating spindle. The outer circle of the piston is machined through turning, turning is replaced by grinding when the piston ring groove is machined, the machining precision of the piston ring groove is improved, the service life of the piston ring groove is prolonged, the structure is compact, operation is convenient, and the machining efficiency is high.

According to the diaphragm compressor oil mass self-balancing system and the control method, the needed oil supplementing amount and the working state of a diaphragm compressor are calculated and judged through measurement data of exhaust pressure, transient oil pressure and the oil supplementing amount, and data are measured through a pressure sensor and a flow meter and transmitted to a control unit; the required oil supplementing amount is calculated, the working state of the diaphragm compressor is judged, the opening degree of a proportional overflow valve on an oil supplementing loop is controlled, accurate automatic control over the hydraulic oil amount of an oil cavity of the diaphragm compressor and dynamic balance of the oil amount are achieved, and the problem that an executing mechanism acts too frequently can be solved through the oil supplementing method; the overflow valve realizes the change of the oil discharge pressure along with the exhaust pressure, and avoids the problem caused by higher oil pressure. The problem that the diaphragm flaps the cylinder due to the fact that the oil quantity of the oil cavity is reduced under the conditions of starting, working condition change, piston ring abrasion and the like can be effectively solved.

The grinding wheel comprises a grinding wheel body, a mounting section, a chamfering section and a cutting section are sequentially formed on the grinding wheel body from the circle center to the outside in the diameter direction, and the chamfering section is composed of a chamfering face with the included angle beta between the two faces. The cutting section is composed of two cutting surfaces with an included angle of alpha, and alpha < lt >; beta; an annular groove is formed in the intersection of the cutting surface and the chamfering surface; meanwhile, the utility model discloses a device for machining the closed gap of the piston ring, the device comprises a die sleeve, a ring gauge and a grinding wheel body, and a die sleeve cavity is formed in the die sleeve. The annular groove is formed between the chamfering section and the cutting section of the grinding wheel, the density of electromagnetic wires at the annular groove is increased, nickel base deposition at the position is increased, the carborundum bonding strength of the position is improved, meanwhile, the annular groove can discharge metal chips generated by cutting, heat dissipation is improved, and the service life of the grinding wheel is prolonged. The service life of the grinding wheel is prolonged.

The invention relates to a test system for monitoring the temperature of a piston ring of a marine engine, which belongs to the technical field of marine engine temperature monitoring and comprises an infrared temperature measurement module arranged in a cylinder sleeve test hole, a data acquisition unit electrically connected with the infrared temperature measurement module and a data processing unit electrically connected with the data acquisition unit. The number of the cylinder sleeve test holes is multiple, the infrared temperature measurement module is used for measuring the temperature of different positions of the piston ring, measured temperature data are collected through the data collection unit and subjected to primary processing, and the data processing unit receives the data transmitted by the data collection unit and then conducts deep analysis and processing so as to obtain the temperature distribution condition of the piston ring. Real-time and accurate monitoring of the temperature of the piston ring in the operation process of the engine is facilitated, the limitation of a traditional contact type measuring method is overcome, and the damage risk of the piston ring and a cylinder sleeve is reduced.

The piston sealing assembly for the reciprocating type oil-free labyrinth seal compressor comprises an air cylinder, a piston is arranged in the air cylinder, a rotating groove is formed in the outer side wall of the piston, a rotating mechanism is arranged in the rotating groove, and a piston is arranged in the rotating mechanism. And the rotating mechanism comprises a rotating cylinder, two push rods, two extension springs, two extrusion inclined blocks, two pushing springs, two stop blocks and two limiting inclined blocks, a plurality of fixing grooves are formed in the outer side wall of the rotating cylinder and the outer side wall of the piston, and a plurality of piston rings and supporting rings are fixed into the fixing grooves correspondingly. According to the piston sealing assembly for the reciprocating type oil-free labyrinth seal compressor, the multiple piston rings and the multiple supporting rings are arranged, cavity labyrinth seal is formed between the multiple piston rings and between the multiple supporting rings, in this way, non-contact seal is formed, mutual abrasion and cylinder rubbing are avoided, and the piston sealing assembly can adapt to long-period operation of the compressor; and faults which cannot be repaired in a long period are eliminated.

The invention discloses a pressure transmitting system for vacuum suction sampling based on breast biopsy operation, and relates to the technical field, the pressure transmitting system comprises a connecting piece, and further comprises an extension communication mechanism connected with the connecting piece and comprising a cylinder, the bottom of the cylinder is provided with an air port, a piston ring is sleeved in the cylinder, and a hard pipe is fixed on the inner wall of the piston ring; the pressure sensing mechanism is connected with the extension communication mechanism; the buffer performance adjusting mechanism is connected with the extension communicating mechanism and comprises a plurality of arc-shaped plates; according to the invention, by installing the extension communication mechanism, the extension communication mechanism and the buffer performance adjusting mechanism dynamically change the buffer damping performance of the pressure transmitter according to the pressure data adjusted by the vacuum suction system, so that the damping effect is matched with the working condition, and the service life of the sensor of the pressure transmitting system is ensured; the stability and the response speed of the pressure signal are balanced, so that the stability and the real-time performance of pressure detection in the suction sampling process are guaranteed.

A sliding arrangement for use in an internal combustion engine is described, comprising a cylinder liner (1) and at least one piston ring (10), wherein the liner (1) has a through-bore defining an inner surface (S) which in turn defines three sections: a first section (2) near the end of the piston stroke, facing the cylinder head (at top dead center, TDC); a second, middle section (3); and a third section (4) near the end of the piston stroke, facing the crankshaft of the engine (at top dead center, TDC), wherein (i) the TDC section (2) of the liner (1) has a surface finish with a first roughness value defined by a structure of recesses and projections (“valleys” and “raised areas”); the middle section (3) of the liner (1) has a surface finish with a second roughness value defined by a structure of recesses and projections (“valleys” and “raised areas”);(1) the BDC section (4) of the cylinder liner (1) has a surface finish with a third roughness value defined by a structure of recesses and projections (“valleys” and “raised areas”), and the roughness value of the middle section (3) is significantly lower than the roughness value of the TDC section (2), and is defined by an essentially very smooth structure of recesses and projections (“valleys” and “raised areas”); and (ii) a ceramic coating (R) is applied to at least part of the contact surface of the piston ring (10) by the physical vapor deposition (PVD) process.

The utility model relates to the field of recycling devices, in particular to a carbon emission preheating recycling device which comprises a box shell, a water outlet groove and an exhaust groove, the water outlet groove is formed in the front side of the box shell, the exhaust groove is formed in the right side of the box shell, an air suction device sucks carbon emission gas, the carbon emission gas is fed into an air filter through a third air feeding pipe, and dust and sand in the gas are removed; a motor drives a rotor in a compression main machine to rotate, gas fed by an air filter is mixed with engine oil, a large amount of heat is generated, gas steam is formed and discharged, high-temperature oil and gas are conveyed to an oil-gas separation barrel for oil-gas separation, and treated high-temperature and high-pressure gas is conveyed to a cooling device. And the hot water is conveyed to a hot water storage tank, is discharged through a water outlet pipe, and is conveyed to a warm air blower through a second water conveying pipe to form warm air on the other hand.

The utility model discloses a piston ring dismounting device, which relates to the technical field of piston ring dismounting devices, and comprises a guide rail, a handle, an arc-shaped clamping plate and a fixing ring, the front surface of the guide rail is provided with a chute, the upper end of the guide rail is fixedly provided with a servo motor, and the power output end of the servo motor is fixedly connected with a rotating shaft; wherein the rotating shaft is rotationally connected to the guide rail, the lower end of the rotating shaft is fixedly connected with a first bevel gear, the servo motor is started, the left supporting block and the right supporting block can move towards the left side and the right side, then the piston ring is stably opened, and the piston ring can be conveniently disassembled in the following steps; the piston ring dismounting device is simple in structure and suitable for the transverse lengths of openings of different piston rings, the piston rings can be opened during dismounting, the outer sides of the piston rings can be clamped into the grooves, and under the action of the spring rods, the arc-shaped clamping plates can clamp and fix the piston rings, so that the piston rings can be prevented from falling off from the dismounting device, and the piston rings can be prevented from hurting workers after being broken.

Provided is a piston ring including: a low-pressure side ring; and a high-pressure side ring, the low-pressure side ring and the high-pressure side ring are arranged stacked in a direction along the axis so that the high-pressure side ring is closer to a fluid to be compressed, a low-pressure side rotation restriction part configured to restrict rotation in the circumferential direction relative to the piston is formed to the low-pressure side ring, a high-pressure side rotation restriction part configured to restrict rotation in the circumferential direction relative to the piston and a low-pressure side protrusion protruding toward the low-pressure side ring and inserted in the low-pressure side abutment are formed to the high-pressure side ring, and the low-pressure side protrusion is inserted in a low-pressure side abutment with clearances being provided in both sides in the circumferential direction between the low-pressure side ring and the low-pressure side protrusion.

The present invention provides a gas insulated ring network switchgear, comprising a ring network switchgear body, a gas chamber and a control switch chamber are provided in the ring network switchgear body, a piston is installed in the gas chamber, a heat dissipation structure is installed on the ring network switchgear body, the heat dissipation structure corresponds to the piston and the control switch chamber, an auxiliary box is fixed on the ring network switchgear body, a heat insulation board is installed on the peripheral side of the auxiliary box, a first through groove is provided in the auxiliary box and the gas chamber, a blocking block is installed in the gas chamber, the blocking block corresponds to the first through groove, a limit block is installed on one side of the blocking block, and a locking structure is installed on the limit block. The present invention can dissipate heat when the temperature is high, prevent the temperature of the device from being too high to cause danger, and prevent accidental contact with the gas chamber to cause burns; the insulating medium in the gas chamber can be supplemented by the auxiliary box after the insulating medium leaks, thereby preventing the insulating medium in the gas chamber from leaking and causing danger.