CN112524317B - Exhaust structure, compressor and air conditioner with same - Google Patents

Exhaust structure, compressor and air conditioner with same Download PDF

Info

Publication number
CN112524317B
CN112524317B CN202011305364.2A CN202011305364A CN112524317B CN 112524317 B CN112524317 B CN 112524317B CN 202011305364 A CN202011305364 A CN 202011305364A CN 112524317 B CN112524317 B CN 112524317B
Authority
CN
China
Prior art keywords
valve plate
exhaust
annular
baffle
structure according
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
CN202011305364.2A
Other languages
Chinese (zh)
Other versions
CN112524317A (en
Inventor
李业林
史正良
贾波
陈晓晓
郑慧芸
曲成林
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Gree Green Refrigeration Technology Center Co Ltd of Zhuhai
Original Assignee
Gree Green Refrigeration Technology Center Co Ltd of Zhuhai
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Gree Green Refrigeration Technology Center Co Ltd of Zhuhai filed Critical Gree Green Refrigeration Technology Center Co Ltd of Zhuhai
Priority to CN202011305364.2A priority Critical patent/CN112524317B/en
Publication of CN112524317A publication Critical patent/CN112524317A/en
Application granted granted Critical
Publication of CN112524317B publication Critical patent/CN112524317B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K24/00—Devices, e.g. valves, for venting or aerating enclosures
    • F16K24/04—Devices, e.g. valves, for venting or aerating enclosures for venting only
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
    • F04B39/10—Adaptations or arrangements of distribution members
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
    • F04B39/10—Adaptations or arrangements of distribution members
    • F04B39/1066—Valve plates
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C29/00—Component parts, details or accessories of pumps or pumping installations, not provided for in groups F04C18/00 - F04C28/00
    • F04C29/12—Arrangements for admission or discharge of the working fluid, e.g. constructional features of the inlet or outlet
    • F04C29/124—Arrangements for admission or discharge of the working fluid, e.g. constructional features of the inlet or outlet with inlet and outlet valves specially adapted for rotary or oscillating piston pumps
    • F04C29/126—Arrangements for admission or discharge of the working fluid, e.g. constructional features of the inlet or outlet with inlet and outlet valves specially adapted for rotary or oscillating piston pumps of the non-return type
    • F04C29/128—Arrangements for admission or discharge of the working fluid, e.g. constructional features of the inlet or outlet with inlet and outlet valves specially adapted for rotary or oscillating piston pumps of the non-return type of the elastic type, e.g. reed valves
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D27/00—Control, e.g. regulation, of pumps, pumping installations or pumping systems specially adapted for elastic fluids
    • F04D27/008—Stop safety or alarm devices, e.g. stop-and-go control; Disposition of check-valves
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
    • F16F15/02—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems
    • F16F15/04—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using elastic means
    • F16F15/06—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using elastic means with metal springs
    • F16F15/067—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using elastic means with metal springs using only wound springs
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K47/00—Means in valves for absorbing fluid energy
    • F16K47/02—Means in valves for absorbing fluid energy for preventing water-hammer or noise

Abstract

The application provides an exhaust structure, a compressor and an air conditioner with the same, wherein the air conditioner comprises an exhaust part and a valve plate assembly; the exhaust part is provided with an exhaust port; the valve plate assembly comprises a valve plate and a baffle plate; the valve plate is arranged at the exhaust port, and the valve plate can move in the direction of the central axis of the exhaust port to open or close the exhaust port; the baffle is arranged on one side of the valve plate, which is far away from the exhaust port; and a buffer part is arranged between the valve plate and the baffle. According to exhaust structure, compressor and have its air conditioner of this application, can not only prevent that the valve block from easily breaking, can also solve the slapping noise problem between valve block and the baffle.

Description

Exhaust structure, compressor and air conditioner with same
Technical Field
The application belongs to the technical field of air conditioners, and particularly relates to an exhaust structure, a compressor and an air conditioner with the same.
Background
Noise is currently regarded as one of the serious pollutants, and the requirement for comfort is gradually increased. As a power source and a heart of household refrigeration equipment, heat pump equipment and central air-conditioning, noise problems of a refrigeration compressor and a heat pump compressor have become an important index for measuring the comprehensive performance of the refrigeration compressor and the heat pump compressor. The noise sources of the refrigeration compressor and the heat pump compressor comprise three parts, namely air power noise of air inlet and exhaust radiation, mechanical noise generated by mechanical moving parts and noise of a driving exhaust structure, wherein the noise of the driving exhaust structure needs to be improved by optimizing the structure of the exhaust structure; compressor noise is one of the main noises of the air conditioning system, and effective control of the noise of the air conditioning system can be powerful guarantee for the noise quality of the air conditioner. The mechanical noise is mainly generated by mutual impact, friction and external force action among mechanical parts, so the mechanical noise can be divided into impact noise, friction noise and structural vibration noise, and the noises have randomness and are in a broadband characteristic.
However, the rattling noise between the compressor discharge valve plate and the discharge port and the baffle is not solved. The slapping noise of the valve plate occupies a large proportion, is an important component of the overall noise of the compressor and has a large influence on the overall noise of the compressor; and one end of the existing valve plate is fixed, the other end of the valve plate is opened and closed, the stress of the valve plate is concentrated at one end, and the valve plate is easy to break and lose efficacy.
Therefore, how to provide an exhaust structure, a compressor and an air conditioner with the same, which can not only prevent the valve sheet from being easily broken, but also solve the problem of slapping noise between the valve sheet and the baffle, becomes a problem to be solved urgently by those skilled in the art.
Disclosure of Invention
Therefore, the technical problem that this application will be solved lies in providing an exhaust structure, compressor and have its air conditioner, can not only prevent that the valve block from easily splitting, can also solve the slapping noise problem between valve block and the baffle.
In order to solve the above problem, the present application provides an exhaust structure including:
an exhaust section; the exhaust part is provided with an exhaust port;
a valve plate assembly; the valve plate assembly comprises a valve plate and a baffle plate; the valve plate is arranged at the exhaust port, and the valve plate can move in the direction of the central axis of the exhaust port to open or close the exhaust port; the baffle is arranged on one side of the valve plate, which is far away from the exhaust port; and a buffer part is arranged between the valve plate and the baffle.
Preferably, the buffer portion includes an elastic member; the elastic piece is arranged between the valve plate and the baffle plate;
and/or the buffer part comprises a magnetic part; the magnetic part comprises a first magnetic part and a second magnetic part; the first magnetic part is arranged on the baffle; the second magnetic part is arranged on the valve plate; the first magnetic part and the second magnetic part generate repulsive force.
Preferably, the exhaust structure further comprises a connecting portion; the connecting part is connected with the baffle and the exhaust part; the valve plate is connected with the connecting part in a sliding mode so as to move in the direction of the central axis of the exhaust port, and then the exhaust port is opened or closed.
Preferably, the connecting portion comprises a fixing member; the fixing piece is arranged on the exhaust part; the baffle is connected with the fixing piece; the valve plate is provided with a valve plate hole; the valve block is slidably sleeved outside the fixing piece through the valve block hole.
Preferably, the connection portion further comprises a screw; the fixing piece is a sleeve; the sleeve is internally provided with a through hole; the through hole penetrates through two ends of the sleeve; the connecting part also comprises a screw; the baffle plate is provided with a baffle plate hole; the exhaust part is provided with a screw hole; the screw passes through baffle hole, through-hole and screw hole in proper order and fixes the valve block subassembly on exhaust portion.
Preferably, the valve plate is made of at least two valve plates; the valve plate comprises a first section and a second section which are connected in sequence; the first sections of each valve plate are connected with each other to form a connecting position; the at least two valve plates are uniformly arranged around the circumference of the circle center by taking the connecting position as the circle center.
Preferably, the number of the connecting portions corresponds to the number of the valve plates;
and/or the valve plate hole is arranged on the second section of the valve plate;
and/or the shape and the size of the baffle plate correspond to those of the valve plate;
and/or the fixing piece is made of high molecular engineering plastics;
and/or the outer surface of the fixing piece is provided with a lubricating layer or a lubricating wear-resistant layer.
Preferably, the elastic member is a spring; the spring is sleeved outside the fixing piece;
or the first end of the elastic piece is connected with the baffle; the second end of the elastic piece is connected with the valve plate in an abutting mode.
Preferably, the baffle is provided with an annular limiting part; the elastic piece is arranged on the inner peripheral side of the annular limiting part;
and/or the connecting position corresponds to the position of the annular limiting part.
Preferably, the baffle is also provided with a hook; the clamping hook is positioned on the inner peripheral side of the annular limiting part; the number of the hooks is at least two; the at least two clamping hooks are circumferentially arranged around the annular limiting part; the clamping hook faces to the direction far away from the central axis of the annular limiting part; the elastic piece is a spring; the spring is arranged on the clamping hook.
Preferably, a first annular bulge is arranged on the exhaust part; the first annular bulge is arranged around the circumference of the exhaust port; the height of the first annular projection is h1.
Preferably, the exhaust structure further comprises a sealing ring; the sealing ring is arranged around the circumference of the screw hole; the sealing ring comprises a sealing ring; the sealing ring is arranged between the exhaust part and the valve plate; the thickness of the sealing ring is h2.
Preferably, the sealing ring is a second annular protrusion; the second annular bulge is arranged on the exhaust part; and the second annular bulge is arranged around the circumference of the screw hole;
or the sealing ring comprises a sealing ring body, and an annular embedded groove which is circumferentially arranged around the central axis of the sealing ring is formed in the peripheral wall of the sealing ring body; the inner peripheral wall of the valve sheet hole is embedded into the annular embedded groove; in the central axis direction of the sealing ring, the valve plate divides the sealing ring into a first gasket and a second gasket; the first gasket is positioned on one side of the valve plate, which is far away from the screw hole; the second gasket is positioned on one side of the valve plate close to the screw hole to form a sealing ring.
Preferably, the fixing member is located on an inner peripheral side of the first annular projection; and the fixed piece is in interference fit with the inner peripheral wall of the first annular bulge (10;
and/or, h1= h2.
Preferably, the upper surface of the first annular boss is provided with a seal groove circumferentially arranged around the central axis of the first annular boss; and a sealing washer is arranged in the sealing groove.
Preferably, the sealing gasket is formed by sealing strips connected end to end; the cross section of the sealing strip is circular.
Preferably, the sealing strip has a cross-sectional diameter d; the width of the sealing groove is b; wherein h1 is more than h2 and more than d is more than b;
and/or the sealing washer is made of rubber materials or resin materials.
Preferably, the upper surface of the first annular protrusion is a plane or an arc surface;
and/or the upper surface of the second annular bulge is a plane;
and/or the first annular bulge is made of high polymer engineering plastics;
and/or a damping layer is arranged on the upper surface of the first annular bulge;
and/or the seal ring body is made of a rubber material or a resin material.
Preferably, the high molecular engineering plastic is any one of Polytetrafluoroethylene (PTFE) and/or Polyimide (PI) and/or Polyetheretherketone (PEEK) and/or polyphenylene sulfide (PPS) and/or polyethylene terephthalate (PBT) and/or Polyethersulfone (PES);
and/or the high molecular engineering plastic is a composite material consisting of any one or two of Polytetrafluoroethylene (PTFE), polyimide (PI), polyether ether ketone (PEEK), polyphenylene sulfide (PPS), polyethylene terephthalate (PBT) and polyether sulfone (PES);
and/or the damping layer is formed by coating at least one of MoS2, WS2, PTFE, PEEK, graphite, organic silicon, cubic boron nitride, GLC and DLC;
and/or the lubricating layer is made of at least one of MoS2, WS2, PTFE, PEEK, graphite, organic silicon, cubic boron nitride, GLC and DLC;
and/or the resin material is at least one of polyurethane, polyacrylate, polytetrafluoroethylene, polyformaldehyde, phenolic aldehyde clamped cloth, silica gel and nylon;
and/or the longitudinal section of the first annular bulge is semicircular at the circumferential preset position of the first annular bulge;
and/or the lubricating wear-resistant layer is formed by coating at least one of MoS2, WS2, PTFE, PEEK, graphite, organic silicon, cubic boron nitride, GLC and DLC.
According to still another aspect of the present application, there is provided a compressor including a discharge structure, the discharge structure being the discharge structure described above.
According to still another aspect of the present application, there is provided an air conditioner including a compressor, the compressor being the above-mentioned compressor.
According to the exhaust structure, the compressor and the air conditioner with the compressor, the valve plate can move in the direction of the central axis of the exhaust port to open or close the exhaust port, the valve plate can be prevented from being easily broken, the buffer part is arranged between the valve plate and the baffle, the rattling noise between the valve plate and the baffle can be avoided, the buffer part can provide a buffer force, the buffer force can offset the force of part of the exhaust port on the valve plate, and the valve plate can be prevented from being easily broken; this application exhaust structure, compressor and have its air conditioner can not only prevent that the valve block from easily breaking, can also solve the slapping noise problem between valve block and the baffle.
Drawings
FIG. 1 is a schematic view of an installation structure of an exhaust structure according to an embodiment of the present application;
FIG. 2 is a cross-sectional view of a venting structure in accordance with an embodiment of the present application;
FIG. 3 is a schematic view of an installation structure of an exhaust structure according to an embodiment of the present application;
FIG. 4 is a schematic structural diagram of a baffle plate according to an embodiment of the present application;
FIG. 5 is a schematic structural diagram of a baffle plate according to an embodiment of the present application;
FIG. 6 is a schematic view of an installation structure of a venting structure according to an embodiment of the present application;
FIG. 7 is a schematic view of an installation structure of an exhaust structure according to an embodiment of the present application;
FIG. 8 is a cross-sectional view of a venting structure in accordance with an embodiment of the present application;
FIG. 9 is a schematic view of an installation structure of a gas discharge structure according to an embodiment of the present application;
FIG. 10 is a schematic view of an installation structure of a venting structure according to an embodiment of the present application;
fig. 11 is a sectional view of a gas discharge structure according to an embodiment of the present application.
The reference numbers are given as:
100. an exhaust section; 101. a second annular embossment; 102. a first annular projection; 102a, a sealing groove; 103. an exhaust port; 104. screw holes; 210. a valve plate assembly; 211. a fixing member; 212. a valve plate; 212a, a valve plate hole; 213. an elastic member; 214. a baffle plate; 214a, an annular limiting part; 214b, hook; 215. a screw; 216. a seal ring body; 217. a sealing gasket; 218a, a first magnetic member; 218b, a second magnetic member.
Detailed Description
Referring to fig. 1-2 in combination, according to an embodiment of the present application, a vent structure includes a vent part 100 and a valve sheet assembly 210; the exhaust part 100 is provided with an exhaust port 103; valve plate assembly 210 includes valve plate 212 and flapper 214; the valve plate 212 is disposed at the exhaust port 103, and the valve plate 212 is movable in the central axis direction of the exhaust port 103 to open or close the exhaust port 103; the baffle 214 is arranged on one side of the valve plate 212 departing from the exhaust port 103; a buffer part is arranged between the valve plate 212 and the baffle plate 214; the valve plate 212 can move in the direction of the central axis of the exhaust port 103 to open or close the exhaust port 103, so that the problem that the valve plate 212 is easy to fatigue fracture after being bent and closed for a long time can be prevented, a buffer part is arranged between the valve plate 212 and the baffle plate 214, so that rattling noise between the valve plate 212 and the baffle plate 214 can be solved, the buffer part can provide a buffer force, and the direction of the buffer force is the direction close to the exhaust port 103 and is opposite to the direction of gas exhaust of the exhaust port 103; the buffer force can offset part of the force of the exhaust port 103 on the valve plate 212, and can prevent the pressure generated by the exhaust port 103 on the valve plate 212 from being concentrated at a certain position on the valve plate 212; and then prevent that valve block 212 is easy to be cracked for the fatigue fracture problem of valve block 212 is solved, can guarantee the normal operating of compressor exhaust work, and the reliability of compressor has also been strengthened.
The present application also discloses embodiments in which the buffer portion comprises an elastic member 213; the elastic member 213 is disposed between the valve sheet 212 and the baffle 214; the elastic force of the elastic element 213 can offset part of the force of the exhaust port 103 on the valve plate 212, and can prevent the pressure generated by the exhaust port 103 on the valve plate 212 from being concentrated on a certain position on the valve plate 212; thereby preventing the valve sheet 212 from being easily broken, and the elastic member 213 can prevent noise from being generated by slapping between the valve sheet 212 and the retainer 214. A spring with better damping performance or two magnets with opposite homopolarity are selected.
Referring collectively to fig. 10-11, the cushioning portion includes a magnetic member; the magnetic members include a first magnetic member 218a and a second magnetic member 218b; the first magnetic member 218a is disposed on the baffle 214; the second magnetic member 218b is disposed on the valve plate 212; a repulsive force is generated between the first magnetic member 218a and the second magnetic member 218b; a force F2 is generated between the first magnetic member 218a and the second magnetic member 218b in a direction approaching the exhaust port 103; the force F1 in the direction away from the exhaust port 103, namely the force towards the direction close to the exhaust port 103 can offset part of the force applied to the valve plate 212 by the exhaust port 103, and can prevent the pressure generated by the exhaust port 103 on the valve plate 212 from being concentrated at a certain position on the valve plate 212; thereby preventing the valve plate 212 from being easily broken. And because the repulsive force is generated between the first magnetic member 218a and the second magnetic member 218b, the rattling between the valve sheet 212 and the damper 214 can be prevented from generating noise. Specifically, the second magnet is assembled at the center part above the valve plate 212, the first magnet is assembled at the center part below the baffle plate 214, and the surfaces with the same polarity of the second magnet and the first magnet are arranged oppositely, so that the two magnets keep a repulsive state, and the valve plate 212 can be tightly attached to the first annular protrusion 102 under the action of a repulsive force F between the two magnets with the same polarity, the sealing performance is ensured, and the compressed gas leakage is avoided.
The present application also discloses some embodiments, the exhaust structure further comprising a connecting portion; the connecting portion connects the baffle plate 214 and the exhaust portion 100; the valve sheet 212 is slidably connected to the connecting portion to move in the direction of the central axis of the exhaust port 103, thereby opening or closing the exhaust port 103.
The present application also discloses embodiments in which the connection portion includes a fixing member 211; the fixing member 211 is disposed on the exhaust part 100; the baffle 214 is connected with the fixing piece 211; the valve plate 212 is provided with a valve plate hole 212a; the valve plate 212 is slidably sleeved outside the fixing piece 211 through the valve plate hole 212a; the clearance fit between the inner wall of the valve plate 212 and the fixing piece 211 can ensure that the valve plate 212 can freely slide in the axial direction, and the generation of friction noise between the valve plate 212 and the screw 215 is also avoided.
The present application also discloses some embodiments, the connection further comprises a screw 215; the fixing piece 211 is a sleeve; the sleeve is internally provided with a through hole; the through hole penetrates through two ends of the sleeve; the connection portion further includes a screw 215; baffle holes are formed in the baffle 214; the exhaust part 100 is provided with a screw hole 104; the screw 215 passes through the baffle hole, the through hole, and the screw hole 104 in this order to fix the valve sheet assembly 210 to the exhaust section 100.
The present application also discloses embodiments where the valve plate 212 is made of at least two valve plates; the valve plate comprises a first section and a second section which are connected in sequence; the first sections of each valve plate are connected with each other to form a connecting position; the at least two valve plates are uniformly arranged around the circumference of the circle center by taking the connecting position as the circle center.
The present application also discloses embodiments in which the valve plate 212 includes a first valve plate and a second valve plate; in the first direction, the first section of the first valve plate is connected with the first section of the second valve plate, and the first valve plate and the second valve plate are linear;
3-5, the present application further discloses that in some embodiments, the valve plate 212 includes a first valve plate, a second valve plate, and a third valve plate, the first sections of the first valve plate, the second valve plate, and the third valve plate are all connected, and the three valve plates are circumferentially arranged around the connection location. Three screw holes 104, three second annular bulges 101 and three sleeves are arranged corresponding to the three valve plates; each sleeve is positioned on the inner peripheral side of the corresponding second annular bulge 101 and is in interference fit with the second annular bulge 101, and a valve plate hole 212a is formed in the second section of each valve plate; each valve plate hole 212a is sleeved outside the corresponding sleeve; the connection positions of the three valve plates are provided with annular limiting bulges and clamping hooks 214b; the spring is arranged between the clamping hook 214b and the annular limiting bulge and clamped by the clamping hook 214b, so that the stability of the valve plate assembly 210 moving in the axial direction can be further improved, the contact between the valve plate 212 and the first annular bulge 102 and the second annular bulge 101 is tighter, the sealing performance between the valve plate 212 and the first annular bulge 102 is further improved, and the compressed gas leakage is avoided. The valve plate 212 formed by the three valve plates enables the stress structure to be more stable, and the probability that the valve plate 212 inclines is lower.
The application also discloses some embodiments, the number of the connecting parts corresponds to the number of the valve plates; each valve plate is provided with a valve plate hole, and each valve plate hole corresponds to one connecting part, one baffle plate 214 and one screw 215;
the valve plate hole 212a is arranged on the second section of the valve plate;
the baffle 214 corresponds to the valve sheet 212 in shape and size;
the fixing member 211 is made of polymer engineering plastic;
the surface of mounting 211 is provided with lubricant film or lubricated wearing layer, mounting 211 is metal sleeve, inlay the solid and form the lubricant film or at metal sleeve surface coating one deck self-lubricating wearing layer formation lubricated wearing layer at metal sleeve's a plurality of micropores, with the frictional noise between two valve block holes 212a and the sleeve that reduce valve block 212, and can also guarantee the smooth and easy degree of valve block 212 motion on the axial direction, and then make compressor gas's exhaust more smooth and easy, avoid valve block 212 the condition that the card pause appears in the exhaust process.
Referring to fig. 9 in combination, the present application also discloses embodiments in which the elastic member 213 is a spring; the spring is sleeved outside the fixing part 211; the spring can be sleeved on the periphery of the sleeve, so that the spring is abutted against the valve plate 212, the condition that interference cannot occur between the spring and the sleeve is ensured, the sealing performance between the valve plate 212 and the first annular bulge 102 is ensured, meanwhile, the redundant annular limiting part 214a and the clamping hook 214b are not required to be arranged on the baffle plate 214, and the processing cost and other material cost are reduced.
Alternatively, the first end of the elastic member 213 is fixedly connected to the baffle 214; the second end of the elastic member 213 abuts against the valve plate 212.
The application also discloses some embodiments, the baffle 214 is provided with an annular limiting part 214a; the elastic member 213 is disposed on the inner peripheral side of the annular stopper portion 214 a.
The connection position corresponds to the position of the annular limiting portion 214a, so that the assembly between the elastic member 213 and the baffle 214 is more convenient, the assembly between the elastic member 213 and the baffle 214 is more stable, and the elastic member 213 abuts against the center of the valve sheet 212, so that the pressure generated by the center exhaust port 103 on the valve sheet 212 is offset by the elastic force of the spring, the valve sheet 212 is not easily broken or failed, even if the spring is arranged at two ends of the valve sheet 212, the pressure generated by the center exhaust port 103 on the center of the valve sheet 212 is distributed to the two ends, and meanwhile, the forces at the two ends are offset by the spring, after the pressure is distributed, the force applied to the valve sheet 212 is reduced, and the valve sheet 212 is not easily broken or failed.
The application also discloses some embodiments, the baffle plate 214 is also provided with a hook 214b; the hook 214b is positioned on the inner peripheral side of the annular limiting part 214a; the number of the hooks 214b is set to at least two; at least two hooks 214b are circumferentially arranged around the annular limiting part 214a; the hooks 214b face away from the central axis of the annular limiting part 214a; the elastic member 213 is a spring; the spring is disposed on the hook 214 b.
The present application also discloses embodiments in which the exhaust portion 100 is provided with a first annular protrusion 102; the first annular projection 102 is circumferentially disposed around the exhaust port 103; the first annular protrusion 102 has a height h1. The elastic member 213 abuts against the valve plate 212 and makes the valve plate 212 closely contact with the first annular protrusion 102 of the exhaust part 100, so as to ensure the sealing between the valve plate 212 and the exhaust port 103 of the exhaust part 100. Meanwhile, the elastic member 213 can prevent noise generated by rattling between the valve sheet 212 and the damper 214.
The application also discloses some embodiments, the exhaust structure further comprises a seal ring; the seal ring is disposed around the circumference of the screw hole 104; the sealing ring comprises a sealing ring; the sealing ring is arranged between the exhaust part 100 and the valve plate 212; the thickness of the sealing ring is h2.
The application also discloses embodiments in which the sealing ring is a second annular protrusion 101; the second annular bulge 101 is arranged on the exhaust part 100; and the second annular projection 101 is arranged around the circumference of the screw hole 104;
alternatively, referring to fig. 6 in combination, the seal ring includes a seal ring body 216, and an annular insertion groove circumferentially disposed around a central axis of the seal ring is provided on an outer peripheral wall of the seal ring body 216; the inner peripheral wall of the valve plate hole 212a is embedded in the annular embedding groove; in the central axis direction of the sealing ring, the valve plate 212 divides the sealing ring into a first gasket and a second gasket; the first gasket is positioned on one side of the valve plate 212 departing from the screw hole 104; the second gasket is positioned on the side of the valve plate 212 close to the screw hole 104 to form a sealing ring. The sealing ring body 216 is favorably fixed on the valve plate 212, and the second gasket of the sealing ring is adopted to form the sealing ring, so that friction noise between the valve plate hole 212a of the valve plate 212 and the sleeve can be reduced, the smoothness of movement of the valve plate 212 in the axial direction can be ensured, gas exhaust of the compressor is smoother, the clamping and pause of the valve plate 212 in the exhaust process can be avoided, and noise generated by slapping between the valve plate 212 and the exhaust part 100 such as a static disc valve plate can be avoided.
The application also discloses some embodiments, the fixing piece 211 is located on the inner peripheral side of the first annular protrusion 102, and the fixing piece 211 is in interference fit with the inner peripheral wall of the first annular protrusion 102.
h1= h2, which can ensure the sealing performance between the valve plate 212 and the first annular protrusion 102 on the exhaust part 100, and can also ensure the sealing performance between the valve plate 212 and the exhaust port 103 on the exhaust part 100; the situation that the valve plate 212 is inclined to cause the leakage of the compressed gas can be avoided.
Referring collectively to fig. 7-8, the present application further discloses embodiments wherein an upper surface of the first annular boss 102 is provided with a seal groove 102a, the seal groove 102a being circumferentially disposed about a central axis of the first annular boss 102; a sealing washer 217 is disposed in the sealing groove 102 a.
The application also discloses embodiments in which the sealing gasket 217 is formed by sealing strips connected end to end; the cross section of the sealing strip is circular.
The application also discloses embodiments where the sealing strip has a cross-sectional diameter d; the width of seal groove 102a is b; wherein h1 is more than h2 and more than d is more than b; the diameter d of the cross section of the sealing strip is smaller than the width b of the sealing groove 102a, the diameter d of the cross section of the sealing strip is larger than the height h2 of the second annular protrusion 101, the height h1 of the first annular protrusion 102 is smaller than the height h2 of the second annular protrusion 101, namely h1 is more than h2 and is more than d and is less than b, the sealing strip is guaranteed to have a deformation space in the sealing groove 102a after being compressed by the valve plate 212 due to the arrangement, and meanwhile, even if the valve plate 212 is limited by two or three second annular protrusions 101, the sealing strip and the valve plate 212 are still in a contact sealing state, the arrangement can reduce noise generated between the valve plate 212 and the first annular protrusion 102 due to slapping, the sealing performance between the valve plate 212 and the first annular protrusion 102 can be guaranteed, and the situation of compressed gas leakage is avoided.
Further, the sealing washer 217 in the sealing groove 102a is also made of soft rubber material or resin material, wherein the resin material is at least one of polyurethane, polyacrylate, polytetrafluoroethylene, polyformaldehyde, phenolic cloth, silica gel, nylon and/or composite materials of these materials, and these materials can ensure the sealing performance while ensuring the deformation capability.
The material of the sealing gasket 217 is rubber material or resin material.
The application also discloses some embodiments, the upper surface of the first annular protrusion 102 is a plane or an arc surface, and the processing precision of the plane or the semi-arc surface needs to be ensured, so that the sealing between the valve plate 212 and the first annular protrusion 102 is in a linear sealing or surface sealing mode, and the structure can prevent the leakage of compressed gas caused by a gap between the valve plate 212 and the first annular protrusion 102;
the upper surface of the second annular bulge 101 is a plane, each screw hole 104 is correspondingly provided with one second annular bulge 101, and the heights of all the second annular bulges 101 are consistent, so that the stability of the valve plate 212 when the valve plate 212 is close to the exhaust part 100 can be ensured, and the valve plate 212 cannot incline to cause the leakage of compressed gas;
the first annular projection 102 is made of polymer engineering plastics;
or, the upper surface of the first annular protrusion 102 is provided with a damping layer, and since the polymer engineering plastics and the damping coating have the functions of damping and energy absorption, the heat energy of the slapping kinetic energy can be converted into the sound energy, so that the purpose of reducing the noise generated by slapping between the straight valve plate 212 and the exhaust part 100 such as a static disc valve plate can be achieved; therefore, the part of the first annular bulge 102, which is in contact with the valve plate 212, is coated with a damping coating or is replaced by a high-molecular engineering plastic material, so that the slapping noise of the valve plate 212 and the valve plate, the slapping noise of the valve plate 212 and the baffle 214 and the friction noise between the valve plate 212 and the sleeve are reduced, the running noise of the whole compressor is reduced, and the comfort of the whole air conditioning system is improved.
The seal ring body 216 is made of a rubber material or a resin material.
The application also discloses some embodiments, the high molecular engineering plastic is any one of Polytetrafluoroethylene (PTFE) and/or Polyimide (PI) and/or Polyetheretherketone (PEEK) and/or polyphenylene sulfide (PPS) and/or polyethylene terephthalate (PBT) and/or polyether sulfone (PES);
the polymer engineering plastic is a composite material consisting of one or two of Polytetrafluoroethylene (PTFE), polyimide (PI), polyether ether ketone (PEEK), polyphenylene sulfide (PPS), polyethylene terephthalate (PBT) and polyether sulfone (PES);
the damping layer is formed by coating at least one of MoS2, WS2, PTFE, PEEK, graphite, organic silicon, cubic boron nitride, GLC and DLC;
the material of the lubricating layer is at least one of MoS2, WS2, PTFE, PEEK, graphite, organic silicon, cubic boron nitride, GLC and DLC, namely, the solid self-lubricating agent inlaid in the micropores of the metal sleeve is at least one of MoS2 and/or WS2 and/or PTFE and/or PEEK and/or graphite and/or organic silicon and/or cubic boron nitride and/or GLC and/or DLC;
the lubricating wear-resistant layer is formed by coating at least one of MoS2, WS2, PTFE, PEEK, graphite, organic silicon, cubic boron nitride, GLC and DLC
The resin material is at least one of polyurethane, polyacrylate, polytetrafluoroethylene, polyformaldehyde, phenolic aldehyde clamped cloth, silica gel and nylon;
at a preset position in the circumferential direction of the first annular protrusion 102, the longitudinal section of the first annular protrusion 102 is semicircular. This predetermined position refers to any position where the longitudinal section of the first annular projection 102 is semicircular at a predetermined position in the circumferential direction of the first annular projection 102.
For example, the valve plate assembly 210 is assembled above the exhaust port 103 of the static disc of the scroll compressor, and the assembly sequence is as follows:
the two sleeves are pressed into the inner periphery of the second annular boss of the static disc in an interference manner, then the valve plate 212 is installed, the valve plate hole 212a of the valve plate 212 is in clearance fit with the sleeves to ensure that the valve plate 212 can freely slide in the axial direction, the baffle holes at the two ends of the assembled spring at the center of the baffle 214 are aligned with the valve plate hole 212a and the through hole of the sleeve respectively, and finally the valve plate assembly 210 is fixed on the valve plate of the static disc by using the screw 215.
According to an embodiment of the present application, there is provided a compressor including a discharge structure, where the discharge structure is the discharge structure described above. The compressor is one of a vortex compressor, a rotor compressor, a piston compressor, a vane compressor, a swash plate compressor, a planetary compressor or other positive displacement compressors, and the air compressor is one of a vortex compressor, a piston compressor, a screw compressor, a vane compressor, a roots vacuum pump or other positive displacement compressors.
According to the embodiment of the application, the air conditioner comprises a compressor, and the compressor is the compressor.
It is readily understood by a person skilled in the art that the advantageous ways described above can be freely combined, superimposed without conflict.
The present invention is not intended to be limited to the particular embodiments shown and described, but is to be accorded the widest scope consistent with the principles and novel features herein disclosed. The foregoing is only a preferred embodiment of the present application, and it should be noted that, for those skilled in the art, several modifications and variations can be made without departing from the technical principle of the present application, and these modifications and variations should also be considered as the protection scope of the present application.

Claims (24)

1. An exhaust structure, characterized by comprising:
an exhaust unit (100); an exhaust port (103) is formed in the exhaust part (100);
a valve plate assembly (210); the valve plate assembly (210) comprises a valve plate (212) and a baffle (214); the valve plate (212) is arranged at the exhaust port (103), and the valve plate (212) can move in the direction of the central axis of the exhaust port (103) to open or close the exhaust port (103); the baffle (214) is arranged on one side, away from the air outlet (103), of the valve plate (212); a buffer part is arranged between the valve plate (212) and the baffle (214);
the valve plate (212) is made of at least two valve plates; the valve plate comprises a first section and a second section which are connected in sequence; the first sections of each valve plate are connected with each other to form a connecting position; the connecting positions are taken as circle centers, and at least two valve plates are uniformly arranged around the circle centers in the circumferential direction;
the exhaust structure further comprises a connecting part; the connecting portion includes a fixing member (211); the connection further comprises a screw (215); the fixing piece (211) is a sleeve; the sleeve is internally provided with a through hole; the through hole penetrates through two ends of the sleeve; a baffle hole is formed in the baffle (214); the exhaust part (100) is provided with a screw hole (104); the screw (215) penetrates through the baffle hole, the through hole and the screw hole (104) in sequence to fix the valve plate assembly (210) on the exhaust part (100).
2. A gas discharge structure according to claim 1, wherein said buffer portion includes an elastic member (213); the elastic piece (213) is arranged between the valve plate (212) and the baffle (214);
and/or the buffer part comprises a magnetic piece; the magnetic member comprises a first magnetic member (218 a) and a second magnetic member (218 b); the first magnetic part (218 a) is arranged on the baffle plate (214); the second magnetic piece (218 b) is arranged on the valve plate (212); a repulsive force is generated between the first magnetic member (218 a) and the second magnetic member (218 b).
3. The exhaust structure according to claim 2, wherein the connecting portion connects the baffle plate (214) and the exhaust portion (100); the valve plate (212) is connected with the connecting part in a sliding mode to move in the direction of the central axis of the exhaust port (103), and then the exhaust port (103) is opened or closed.
4. The exhaust structure according to claim 3, wherein the fixing member (211) is provided on the exhaust portion (100); the baffle (214) is connected with the fixing piece (211); the valve plate (212) is provided with a valve plate hole (212 a); the valve plate (212) is slidably sleeved outside the fixing piece (211) through the valve plate hole (212 a).
5. The exhaust structure according to claim 4, wherein the number of the connecting portions corresponds to the number of the valve plates;
and/or the valve plate hole (212 a) is arranged on the second section of the valve plate;
and/or the baffle (214) corresponds to the valve plate (212) in shape and size;
and/or the fixing piece (211) is made of high molecular engineering plastics;
and/or the outer surface of the fixing piece (211) is provided with a lubricating layer or a lubricating wear-resistant layer.
6. The venting structure as claimed in claim 4, wherein the elastic member (213) is a spring; the spring is sleeved outside the fixing piece (211);
or the first end of the elastic piece (213) is connected with the baffle (214); the second end of the elastic piece (213) is abutted against the valve plate (212).
7. The exhaust structure according to claim 6, wherein the baffle plate (214) is provided with an annular stopper portion (214 a); the elastic piece (213) is arranged on the inner peripheral side of the annular limiting part (214 a);
and/or the connecting position corresponds to the position of the annular limiting part (214 a).
8. The exhaust structure according to claim 7, wherein the baffle plate (214) is further provided with a hook (214 b); the hook (214 b) is positioned on the inner peripheral side of the annular limiting part (214 a); the number of the hooks (214 b) is at least two; at least two hooks (214 b) are arranged around the circumference of the annular limiting part (214 a); the clamping hook (214 b) faces to the direction away from the central axis of the annular limiting part (214 a); the elastic piece (213) is a spring; the spring is arranged on the hook (214 b).
9. The exhaust structure according to claim 4, wherein the exhaust portion (100) is provided with a first annular projection (102); the first annular projection (102) is circumferentially arranged around the exhaust port (103); the first annular projection (102) has a height h1.
10. The vent structure according to claim 9, further comprising a seal ring; the sealing ring is arranged around the circumference of the screw hole (104); the seal ring comprises a seal ring; the sealing ring is arranged between the exhaust part (100) and the valve plate (212); the thickness of the sealing ring is h2.
11. A venting structure as defined in claim 10, wherein said sealing ring is a second annular protrusion (101); the second annular bulge (101) is arranged on the exhaust part (100); and the second annular bulge (101) is arranged around the circumference of the screw hole (104);
or the sealing ring comprises a sealing ring body (216), and an annular embedded groove which is circumferentially arranged around the central axis of the sealing ring is formed in the outer peripheral wall of the sealing ring body (216); the inner peripheral wall of the valve plate hole (212 a) is embedded into the annular embedded groove; in the central axis direction of the sealing ring, the valve plate (212) divides the sealing ring into a first gasket and a second gasket; the first gasket is positioned on one side, away from the screw hole (104), of the valve plate (212); the second gasket is positioned on one side, close to the screw hole (104), of the valve plate (212) to form the sealing ring.
12. The exhaust structure according to claim 11, wherein the fixing member (211) is located on an inner peripheral side of the second annular projection (101), and the fixing member (211) is interference-fitted with an inner peripheral wall of the second annular projection (101);
and/or, h1= h2.
13. The exhaust structure according to claim 11, wherein an upper surface of the first annular boss (102) is provided with a seal groove (102 a), the seal groove (102 a) being circumferentially arranged around a central axis of the first annular boss (102); a sealing gasket (217) is arranged in the sealing groove (102 a).
14. A venting structure as claimed in claim 13, wherein the sealing gasket (217) is formed by sealing strips joined end to end; the cross section of the sealing strip is circular.
15. The exhaust structure according to claim 14, wherein the sealing strip has a cross-sectional diameter d; the width of the sealing groove (102 a) is b; wherein h1 is more than h2 and more than d is more than b;
and/or the sealing washer (217) is made of rubber materials or resin materials.
16. The exhaust structure according to claim 13, wherein the upper surface of the first annular projection (102) is a flat surface or an arc-shaped surface;
and/or the upper surface of the second annular bulge (101) is a plane;
and/or the first annular bulge (102) is made of high molecular engineering plastics;
and/or a damping layer is arranged on the upper surface of the first annular bulge (102);
and/or the seal ring body (216) is made of a rubber material or a resin material.
17. A venting structure as defined in claim 16, wherein when said first annular protrusion (102) is made of a polymer engineering plastic, said polymer engineering plastic is composed of any one or more of Polytetrafluoroethylene (PTFE), polyimide (PI), polyetheretherketone (PEEK), polyphenylenesulfide (PPS), polyethyleneterephthalate (PBT) and Polyethersulfone (PES).
18. Exhaust structure according to claim 16, characterized in that when the upper surface of the first annular projection (102) is provided with a damping layer, said damping layer is made of MoS 2 、WS 2 PTFE, PEEK, graphite, organic silicon, cubic boron nitride, GLC and DLC.
19. The exhaust structure according to claim 5, wherein when the outer surface of the fixing member (211) is provided with a lubricating layer, the lubricating layer is made of MoS 2 、WS 2 At least one of PTFE, PEEK, graphite, organic silicon, cubic boron nitride, GLC and DLC.
20. A venting structure as defined in claim 16 wherein, when said sealing ring body (216) is made of a rubber material or a resin material, said resin material is at least one of polyurethane, polyacrylate, polytetrafluoroethylene, polyoxymethylene, phenolic cloth, silicone, nylon.
21. A gas discharge structure according to claim 16, characterized in that the longitudinal section of said first annular projection (102) is semicircular at a predetermined position in the circumferential direction of said first annular projection (102).
22. The exhaust structure according to claim 5, wherein when the outer surface of the fixing member (211) is provided with a lubricating wear-resistant layer, the lubricating wear-resistant layer is formed of MoS 2 、WS 2 PTFE, PEEK, graphite, organic silicon, cubic boron nitride, GLC and DLC.
23. A compressor comprising a discharge structure, wherein the discharge structure is as claimed in any one of claims 1 to 22.
24. An air conditioner comprising a compressor, wherein the compressor is the compressor of claim 23.
CN202011305364.2A 2020-11-19 2020-11-19 Exhaust structure, compressor and air conditioner with same Active CN112524317B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202011305364.2A CN112524317B (en) 2020-11-19 2020-11-19 Exhaust structure, compressor and air conditioner with same

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202011305364.2A CN112524317B (en) 2020-11-19 2020-11-19 Exhaust structure, compressor and air conditioner with same

Publications (2)

Publication Number Publication Date
CN112524317A CN112524317A (en) 2021-03-19
CN112524317B true CN112524317B (en) 2022-12-02

Family

ID=74982603

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202011305364.2A Active CN112524317B (en) 2020-11-19 2020-11-19 Exhaust structure, compressor and air conditioner with same

Country Status (1)

Country Link
CN (1) CN112524317B (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113028657B (en) * 2021-03-31 2022-11-15 大唐七台河发电有限责任公司 Vacuum tube side pressure formula exhaust apparatus

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT238870B (en) * 1962-10-24 1965-03-10 Hoerbiger Ventilwerke Ag Ring valve
AT251178B (en) * 1965-07-02 1966-12-27 Hoerbiger Ventilwerke Ag Valve set for reciprocating compressors
JPH05272472A (en) * 1992-03-24 1993-10-19 Mitsubishi Electric Corp Scroll compressor
KR100446755B1 (en) * 1997-08-20 2004-11-03 엘지전자 주식회사 Discharge device of linear compressor for preventing collision of piston and noise by moving discharge valve up and down
KR100422364B1 (en) * 2001-11-19 2004-03-11 삼성광주전자 주식회사 Exhaust valve of sealed type compressor
KR100700615B1 (en) * 2004-11-12 2007-03-28 엘지전자 주식회사 Discharge valve for reciprocating compressor
KR100821670B1 (en) * 2008-01-22 2008-04-14 이승학 Attrition prevention systems of valve plate and valve guard for air compressor
CN101667312B (en) * 2009-09-01 2011-10-05 张家港和乔电子有限公司 Popping device in cash box
CN102996457B (en) * 2012-12-03 2016-01-20 珠海格力电器股份有限公司 Rotary compressor and outlet valve
KR102339162B1 (en) * 2015-07-01 2021-12-15 엘지전자 주식회사 A compressor
CN109139424A (en) * 2018-09-14 2019-01-04 珠海凌达压缩机有限公司 A kind of exhaust valve plate component and compressor
CN110552865A (en) * 2019-10-08 2019-12-10 珠海格力节能环保制冷技术研究中心有限公司 Exhaust valve assembly, pump body assembly and compressor

Also Published As

Publication number Publication date
CN112524317A (en) 2021-03-19

Similar Documents

Publication Publication Date Title
CN112524317B (en) Exhaust structure, compressor and air conditioner with same
WO2014054118A1 (en) Valve
JP3814731B2 (en) valve
US11287008B2 (en) Damper
JP2020513097A (en) Electronic expansion valve
US10781828B2 (en) Centrifugal pump with noise dampening rubber isolation impeller bushing
JP2016020721A (en) Sealing device
CN114321389B (en) Balance type piston ring sealing device
US10900536B2 (en) Damper
JP2006138361A (en) Shock cushioning mechanism of hydraulic cylinder and hydraulic cylinder
EP3835586B1 (en) Sealing structure and scroll air compressor having same
US11933252B2 (en) Sealing device
CN110159534B (en) Sealing structure, vortex disc sealing device, vortex compressor and refrigeration equipment
CN113028118A (en) Stepping motor and gas valve device
KR101462931B1 (en) Valve device for hermetic compressor
JPH07208407A (en) Diaphragm type actuator
CN219774793U (en) Dry gas sealed annular floating seal ring structure
CN110869654B (en) Central butterfly valve
RU2797898C1 (en) Dynamic metal seal
CN216343915U (en) Dry gas sealing device of high-pressure compressor and high-pressure compressor comprising same
CN112360983B (en) Elastic contact type dynamic sealing structure for high-temperature and high-pressure gas or liquid
JP2018109420A (en) Sealing device
KR200373959Y1 (en) Fluid leakage preventing structure of a plunger pump
JP2018109421A (en) Sealing device
JP2022035261A (en) Composite seal ring

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant