CN116480820A - Compressor exhaust valve and rotor piston compressor - Google Patents
Compressor exhaust valve and rotor piston compressor Download PDFInfo
- Publication number
- CN116480820A CN116480820A CN202310646928.6A CN202310646928A CN116480820A CN 116480820 A CN116480820 A CN 116480820A CN 202310646928 A CN202310646928 A CN 202310646928A CN 116480820 A CN116480820 A CN 116480820A
- Authority
- CN
- China
- Prior art keywords
- reed
- center seat
- center
- baffle
- compressor
- 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.)
- Pending
Links
- 235000014676 Phragmites communis Nutrition 0.000 claims abstract description 93
- 238000009423 ventilation Methods 0.000 claims description 25
- 230000007423 decrease Effects 0.000 claims description 6
- 230000003247 decreasing effect Effects 0.000 claims description 5
- 230000002035 prolonged effect Effects 0.000 abstract description 3
- 230000035945 sensitivity Effects 0.000 abstract description 3
- 230000004888 barrier function Effects 0.000 description 27
- 238000000034 method Methods 0.000 description 4
- 230000006835 compression Effects 0.000 description 3
- 238000007906 compression Methods 0.000 description 3
- 238000003754 machining Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 238000005496 tempering Methods 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 238000002485 combustion reaction Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000009792 diffusion process Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000005192 partition Methods 0.000 description 2
- 238000005498 polishing Methods 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 244000089486 Phragmites australis subsp australis Species 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000003749 cleanliness Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000010924 continuous production Methods 0.000 description 1
- 230000032798 delamination Effects 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000005057 refrigeration Methods 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
Classifications
-
- 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
-
- 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
- F16K15/00—Check valves
- F16K15/14—Check valves with flexible valve members
- F16K15/1401—Check valves with flexible valve members having a plurality of independent valve members
-
- 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
- F16K15/00—Check valves
- F16K15/14—Check valves with flexible valve members
- F16K15/16—Check valves with flexible valve members with tongue-shaped laminae
-
- 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
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/12—Improving ICE efficiencies
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Compressor (AREA)
- Check Valves (AREA)
Abstract
The invention discloses a compressor exhaust valve and a rotor piston type compressor, wherein the compressor exhaust valve comprises a center seat, a reed, a front baffle and a rear baffle, the front baffle and the rear baffle are respectively arranged at the front part and the rear part of the center seat, the bottom of the reed is fixedly connected with the center seat and the bottoms of the front baffle and the rear baffle, the center seat is provided with an air inlet hole and an air outlet hole, the air inlet hole is arranged at the bottom of the center seat, the air outlet hole is arranged on two opposite surfaces of the center seat, the air outlet hole is provided with the reed, air enters from the air inlet and pushes the reed to flow out from the air outlet hole, the front baffle limits the opening angle of the reed arranged between the front baffle and the center seat, and the rear baffle limits the opening angle of the reed arranged between the rear baffle and the center seat. The exhaust valve has long service life and high stability, can effectively avoid the problem of prolonged closing of the exhaust valve, increases the sensitivity of the exhaust valve and improves the air inlet efficiency of the compressor.
Description
Technical Field
The invention relates to the field of compressors, in particular to a compressor exhaust valve and a rotor piston compressor.
Background
The rotor piston compressor is one type of wankel rotor machine. The german mechanical engineer phillips wankel (FelixWankel) first proposed the well-known internal combustion engine with an epitrochoidal eccentric three-bladed rotor in 1934, which is also the name of the wankel rotary engine, whereas the french mechanical engineer leica plurahn benjamin (Rene Planche Benjamin) has disclosed a compressor based on this principle in 1918, which is limited by the low technical maturity at the time and limited processing conditions, and such a compressor is not known.
In the second war, the requirements of the countries on the military industry greatly promote the technological development, after the second war is finished, a large number of new technical inventions are started to be applied to economic construction, the piston compressors developed for centuries also expose more and more defects, and the replacement technology of the piston compressors is attracting attention of the countries. Advanced industrial countries such as the united states, the soviet union and the germany all pay attention to the technical potential of rotor piston compressors and develop a comprehensive attack: igaer, jacobiv Levelqi Su Huom Lin Nuofu (R, R) of the Soviet Harkov aviation institute b of Bob, b of b, b of b of b a first wankel rotary engine of ukrana was developed in 1962, team member bauis Qiao Zhiye wiki nie Ha Lashe f (b/p o i, p f). E, e.g., e х m, e.g., e ч m, as young mechanical engineers, a global first rotor piston air compressor was developed in 1966. After Su Huom Lin Nuofu is replaced in 1968 by Ha Lashe f to become a team leader, 7 rotor piston compressor products such as KhRK refrigeration compressor series, VK and RPK air compressor series and the like are developed in 1991, and 2 products enter a mass production stage.
One key problem in rotor piston compressor design is the reduction of the clearance volume during operation, which is also known as the compressor dead space, i.e., the repeated expansion and compression of compressed air in this harmful area, while reducing the flow delivered by the compressor while consuming energy. The existing rotary compressor is characterized in that air suction is a continuous process, air discharge is an intermittent process, a lift limiter and an air discharge valve plate are arranged at an air discharge hole on a bearing, the air discharge valve plate can close the air discharge hole when the compressor sucks air, and the air discharge hole is opened when the compressor discharges air. The opening and closing time of the exhaust valve plate has a great influence on the performance of the compressor, in order to ensure that the exhaust valve plate can be opened in time when the compressor runs at low frequency, the rigidity of the exhaust valve plate is required to be smaller so as to reduce the resistance of opening the exhaust hole, but the resilience force of the exhaust valve plate with smaller rigidity is also smaller, the speed of closing the exhaust hole by the exhaust valve plate is slower, and the exhaust valve plate is delayed to be closed.
Disclosure of Invention
The present invention is directed to a compressor discharge valve and a rotor piston compressor, which solve at least one of the problems of the prior art.
In order to solve the above-mentioned problems, according to one aspect of the present invention, there is provided a compressor discharge valve comprising a center seat, a reed, a front baffle plate and a rear baffle plate, which are respectively provided at front and rear portions of the center seat, wherein
The center seat is provided with an air inlet hole and an air outlet hole, the air inlet hole is arranged at the bottom of the center seat, the air outlet hole is arranged on two opposite surfaces of the center seat, the air outlet hole is provided with the reed, air enters from the air inlet and pushes the reed away to flow out of the air outlet hole, the front baffle limits the opening angle of the reed arranged between the front baffle and the center seat, and the rear baffle limits the opening angle of the reed arranged between the rear baffle and the center seat.
In one embodiment, the exhaust valve comprises at least two center seats and a limiting plate, the at least two center seats are arranged side by side, the limiting plate is arranged between the at least two center seats, the front baffle and the rear baffle are respectively arranged at the front part and the rear part of the at least two center seats and limit the at least two center seats and the limiting plate between the front baffle and the rear baffle, and the limiting plate limits the opening angle of the reed arranged between the limiting plate and the center seats.
In one embodiment, two opposite surfaces of the center seat are provided with a plurality of ventilation grooves extending along the height direction of the center seat, the bottom of each ventilation groove forms the air inlet hole, and the side parts of each ventilation groove form the air outlet hole.
In one embodiment, the depth of the vent slot gradually decreases from the bottom of the center seat to the top and forms an arcuate slot.
In one embodiment, the ventilation slots on the opposite surfaces of the central seat are symmetrically arranged and have the same shape and size.
In one embodiment, the bottom of the center seat is provided with two connecting parts, and the two connecting parts are arranged at two ends of the bottom air inlet hole and are provided with connecting holes to be fixedly connected with the reed, the front baffle, the rear baffle and the limiting plate.
In one embodiment, the center seat includes a first portion having a uniform thickness and provided with the ventilation grooves, and a second portion having a thickness gradually decreasing from bottom to top and forming a top thickness smaller than that of the first portion.
In one embodiment, the limiting plate comprises a connecting portion and a limiting portion, wherein the connecting portion is provided with a connecting hole to be connected with the center seat, the reed, the front baffle and the rear baffle, and the thickness of the limiting portion gradually decreases from bottom to top and forms a trapezoid cross section.
In one embodiment, two opposite surfaces of the limiting part are further provided with grooves, and the grooves extend from the left end of the limiting part to the right end of the limiting part; preferably, the grooves on two opposite surfaces of the limiting part are symmetrically arranged; preferably, at least two grooves are respectively arranged on two opposite surfaces of the limiting part.
In one embodiment, the front and rear shutters are symmetrically arranged and include a connection portion provided with a connection hole to be connected with the at least two center seats, the reed, and the stopper portion, and a thickness of the stopper portion is gradually decreased from bottom to top so that a gap formed between the stopper portion and the reed is gradually increased from bottom to top.
In one embodiment, the lower portion of the stopper is provided with a recess extending from the left end of the stopper to the right end of the stopper.
In one embodiment, the reed has a breaking strength of 1130-1270MPa and an elongation of 8-20%.
In one embodiment, the surface of the connecting portion of the front baffle plate is further provided with a protruding block through which the discharge valve is mounted to the compressor.
In one embodiment, the exhaust valve for the compressor further comprises a connecting piece, and the at least two center seats, the reed, the front baffle, the rear baffle and the limiting plate are fixedly connected through the cooperation of the connecting piece and the connecting hole.
According to another aspect of the present invention, there is also provided a rotor piston compressor comprising the compressor discharge valve described above.
The exhaust valve has long service life and high stability, can effectively avoid the problem of prolonged closing of the exhaust valve, increases the sensitivity of the exhaust valve, reduces the clearance volume of the compressor during working, and improves the air inlet efficiency of the compressor.
Drawings
Fig. 1-2 are perspective views of an exhaust valve according to one embodiment of the present invention from different perspectives.
FIG. 3 is a cross-sectional view of an exhaust valve according to one embodiment of the present invention.
Fig. 4-5 are perspective views of the center housing of fig. 1-3 from different perspectives.
Fig. 6 is a perspective view of a stopper plate according to an embodiment of the present invention.
Fig. 7 is a perspective view of a front baffle according to one embodiment of the present invention.
FIG. 8 is a perspective view of a tailgate according to one embodiment of the invention.
Figure 9 is a perspective view of a reed according to one embodiment of the present invention.
Detailed Description
The preferred embodiments of the present invention will be described in detail below with reference to the attached drawings, so that the objects, features and advantages of the present invention will be more clearly understood. It should be understood that the embodiments shown in the drawings are not intended to limit the scope of the invention, but rather are merely illustrative of the true spirit of the invention.
In the following description, for the purposes of explanation of various disclosed embodiments, certain specific details are set forth in order to provide a thorough understanding of the various disclosed embodiments. One skilled in the relevant art will recognize, however, that an embodiment may be practiced without one or more of the specific details. In other instances, well-known devices, structures, and techniques associated with this application may not be shown or described in detail to avoid unnecessarily obscuring the description of the embodiments.
Reference throughout this specification to "one embodiment" or "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment is included in at least one embodiment. Thus, appearances of the phrases "in one embodiment" or "in an embodiment" in various places throughout this specification are not necessarily all referring to the same embodiment. Furthermore, the particular features, structures, or characteristics may be combined in any suitable manner in one or more embodiments.
In the following description, for the purposes of clarity of presentation of the structure and manner of operation of the present invention, the description will be made with the aid of directional terms, but such terms as "forward," "rearward," "left," "right," "outward," "inner," "outward," "inward," "upper," "lower," etc. are to be construed as convenience, and are not to be limiting.
The present invention relates generally to compressor discharge valves, and more particularly to rotor piston compressor discharge valves. The rotor piston compressor has the advantages of high gas transmission density, high gas feeding speed, simple and efficient structure, higher rotating speed, extremely low vibration noise, reduced manufacturing cost, long service life and high skill efficiency. Compared with the traditional internal combustion engine, one rotation of the rotary engine is equal to four strokes of the engine, one working cavity works equal to three cylinders work simultaneously, and the same volume weight can burst out more power. One rotation of the rotor piston compressor completes suction and compression simultaneously, one volume cavity is equal to that of a plurality of cylinders to work simultaneously, the working efficiency is extremely high, and the exhaust capacity of the traditional compressor with the volume more than twice of that of the traditional compressor can be generated by smaller volume weight. Also, because of the quasi-overlap of compression strokes, the rotor piston compressor has very rapid response to power increase, can rapidly increase the displacement when the gas consumption rises, and has more obvious characteristics in combination with an energy-saving high-speed motor.
Meanwhile, because the gas transmission density of the rotor piston compressor is several times that of the traditional piston compressor, in order to match the flow of the rotor piston compressor, the equivalent flow area of the exhaust valve with the same volume is also required to be obviously higher than that of the exhaust valve of the traditional compressor, and the design can fully meet the characteristic of matching the rotor piston compressor.
The exhaust valve of the invention is arranged on an exhaust port of a compressor, and generally comprises at least one center seat, a reed, a front baffle plate and a rear baffle plate, wherein the front baffle plate and the rear baffle plate are respectively arranged at the front part and the rear part of the center seat, and the bottom of the reed is fixedly connected with the bottoms of the center seat, the front baffle plate and the rear baffle plate. The center seat is provided with an air inlet hole and an air outlet hole, the air inlet hole is arranged at the bottom of the center seat, the air outlet hole is arranged on two opposite surfaces of the center seat, the air outlet hole is provided with a reed, air enters from the air inlet and pushes the reed away to flow out from the air outlet hole when the pressure in the exhaust cavity of the compressor is larger than the sum of the pressure outside the air outlet hole of the valve and the elastic force of the spring, the front baffle limits the opening angle of the reed arranged between the front baffle and the center seat, and the rear baffle limits the opening angle of the reed arranged between the rear baffle and the center seat.
The exhaust valve is skillfully arranged through the air inlet hole and the air outlet hole, and the opening and closing of the valve are realized through the reed arranged on the side surface of the center seat, so that the problem that the exhaust valve is closed in an extending way can be effectively avoided, the sensitivity of the exhaust valve is increased, and the clearance volume of the compressor in working is reduced.
According to various embodiments of the present invention, the exhaust valve of the present invention may include one center seat, two center seats, and a plurality of center seats, and the exhaust valve of the two center seats will be described as an example. It should be noted that this embodiment is only for illustrating the exhaust valve of the present invention, and those skilled in the art may select the number of center seats according to actual situations.
Fig. 1-2 are perspective views of an exhaust valve according to an embodiment of the present invention from different perspectives, and fig. 3 is a cross-sectional view of an exhaust valve according to an embodiment of the present invention. As shown in fig. 1 to 3, the exhaust valve 100 includes two center seats 10, a limiting plate 20, four reed plates 30, a front barrier 40 and a rear barrier 50, the two center seats 10 are arranged side by side, the limiting plate 20 is disposed between the two center seats 10, the front barrier 40 and the rear barrier 50 are disposed at the front and rear portions of the two center seats 10, respectively, and the two center seats 10 and the limiting plate 20 are defined between the front barrier 40 and the rear barrier 50, and the limiting plate 20 limits the opening angle of the reed plates arranged between the limiting plate and the center seats. Each center seat 10 is provided with an air inlet hole 11 and an air outlet hole 12, the air inlet holes 11 are arranged at the bottom of the center seat 10, the air outlet holes 12 are arranged on two opposite surfaces of the center seat and extend along the height direction of the center seat to form long strip-shaped air outlet holes, namely, after air enters from the bottom of the center seat, the air flows out from the side surface of the center seat along the air outlet holes 12, the reed 30 is arranged at the outer side of the air outlet holes 12, the opening and closing of the air outlet holes 12 are controlled by the reed 30, when the pressure of the air is insufficient to overcome the elasticity of the reed, the reed is pressed on the air outlet holes 12 and closes the air outlet holes, and when the air enters from the air inlet and the air pressure in the exhaust chamber of the compressor reaches a certain degree, namely, when the pressure in the air cylinder is greater than the sum of the pressure outside the air cylinder and the elasticity of the spring, the air pushes the reed to open the air outlet holes and flows out from the air outlet holes.
The front barrier 40, the rear barrier 50 and the stopper plate 30 are respectively used to restrict the opening angle of the reed disposed adjacent thereto. For example, four reeds from left to right in the figure are positioned as a first reed, a second reed, a third reed and a fourth reed, the front baffle limits the opening angle of the first reed, the limit plate limits the opening angles of the second reed and the third reed, and the rear baffle limits the opening angle of the fourth reed. That is, when the reed is pushed open by the air pressure to open the air outlet hole, the opening angle of the reed is limited in a certain range due to the limitation of the limiting plate and the front baffle and the rear baffle, so that the reed can rebound to close the air outlet hole conveniently, and the air outlet hole needs to be opened and closed for a plurality of times within one second in the process of rotating the rotor of the compressor.
It should be noted that the steels used to make the valve of the present invention are highly demanding and do not allow for nonmetallic inclusions, hairline cracks, folds, and delamination. In order to increase the purity of the metal, the work piece is subjected to mechanical machining and ultrasonic inspection before rolling to ensure that there are no internal defects therein.
Fig. 4 to 5 are perspective views of the center housing of fig. 1 to 3, and as shown in fig. 4 to 5, opposite surfaces of the center housing 10 are provided with a plurality of ventilation slots 13 extending in a height direction of the center housing, a bottom of each ventilation slot 13 forming an air inlet hole 11, and a side of each ventilation slot 13 forming an air outlet hole 12. The plurality of ventilation grooves 13 are uniformly distributed on the surface of the center seat 10, a partition plate is formed between every two adjacent ventilation grooves, and the thickness of the partition plate is far smaller than the width of the ventilation grooves, so that the exhaust capacity of the air outlet holes is ensured.
Optionally, the depth of the ventilation groove 13 gradually decreases from the bottom of the center seat to the top of the center seat and forms an arc groove, that is, the ventilation groove 13 integrally forms an arc section from the bottom of the center seat to the top of the center seat, the aperture of the ventilation groove is uniformly reduced, when gas passes through the ventilation groove, the gas flows along the arc surface, the flow resistance of the gas is reduced, the gas flow rate is more uniform, the pressure variation of the reed is slowed down, and the service life of the reed is prolonged.
Alternatively, the ventilation slots on the opposite surfaces of the center seat 10 are symmetrically arranged and have the same shape and size, i.e., the ventilation slots on the opposite surfaces of the center seat 10 are arranged in a one-to-one correspondence and have the same depth and width, and the radian variation of the bottom surfaces of the ventilation slots is equal to ensure that the air flow and the flow velocity from each air outlet hole are approximately the same.
With continued reference to fig. 4-5, the bottom of the center seat 10 is provided with two center seat connection portions 14, and the two center seat connection portions 14 are disposed at two ends of the bottom air intake hole and are provided with center seat connection holes 141 to be fixedly connected with the reed, the front baffle, the rear baffle, and the limiting plate.
Alternatively, the center housing 10 includes a first portion 15 and a second portion 16 in the height direction, the first portion 15 having a uniform thickness and being provided with the ventilation grooves 13, the second portion 16 having a thickness gradually decreasing from bottom to top and forming a top thickness smaller than the thickness of the first portion. Through the inclined top setting of center seat, increase the clearance at the top between two center seats to form the diffusion runner that expands gradually, make the air current increase in pressure by a slow speed, increase equivalent flow area, reduce pressure loss. .
Fig. 6 is a perspective view of a limiting plate according to an embodiment of the present invention, and as shown in fig. 6, the limiting plate 20 includes a limiting plate connecting portion 21 and a limiting portion 22, both ends of the limiting plate connecting portion 21 are provided with connecting holes 211 to be connected with a center seat, a reed, a front baffle and a rear baffle, and the thickness of the limiting portion 22 is gradually reduced from bottom to top and forms a trapezoid cross section. Similar with the trapezoidal top of center seat, through the trapezoidal cross-section setting that the thickness of spacing portion reduces gradually, can increase the clearance at the top between center seat and the spacing portion to form the diffusion runner that expands gradually, make the air current reduce speed and boost, increase equivalent flow area, reduce pressure loss. .
Optionally, two opposite surfaces of the limiting portion 22 are further provided with grooves 23, the grooves 23 extend from the left end of the limiting portion to the right end of the limiting portion, optionally, grooves on two opposite surfaces of the limiting portion are symmetrically arranged, and optionally, two opposite surfaces of the limiting portion are respectively provided with at least two grooves 23. When the reed is pushed to open by the air flow, the reed is blocked and then is pressed on the surface of the limiting part, and part of air is reserved in the groove through the arrangement of the groove 23, so that the quick rebound movement of the reed is facilitated, the quick opening and closing of the valve are ensured, and the delay closing of the exhaust valve plate is avoided.
Fig. 7 is a perspective view of a front barrier according to an embodiment of the present invention, and fig. 8 is a perspective view of a rear barrier according to an embodiment of the present invention, as shown in fig. 7 to 8, the front barrier 40 and the rear barrier 50 are symmetrically arranged and include a front barrier connecting portion 41 and a front barrier stopper portion 42 and a rear barrier connecting portion 51 and a rear barrier stopper portion 52, respectively, both ends of the front barrier connecting portion 41 are provided with front barrier connecting holes 411, both ends of the rear barrier connecting portion 51 are provided with rear barrier connecting holes 511, and are connected with two center seats 10, the reed 30 and the limiting plate 20 through the front barrier connecting holes and the rear barrier connecting holes.
Optionally, the thickness of the stop part gradually decreases from bottom to top so that a gap formed between the stop part and the reed gradually increases from bottom to top, so that the reed is opened by rotating the bottom part serving as a rotating shaft when being opened, the gas flow rate changes uniformly, and the gas flow rate does not change suddenly.
Optionally, similar to the limiting plate, the lower part of the front baffle stop portion 42 is provided with a front baffle recess 421, the lower part of the rear baffle stop portion 52 is provided with a rear baffle recess 521, the front baffle recess 421 and the rear baffle recess 521 extend from the left end of the stop portion to the right end of the stop portion, when the air flow pushes the reed to move, the first reed and the fourth reed rotate by a certain angle and are blocked by the front baffle 40 and the rear baffle 50 and are pressed against the surfaces of the front baffle and the rear baffle respectively, and a part of air is retained in the recess by the arrangement of the recess to facilitate the rebound movement of the reed.
As shown in fig. 7, the surface of the connection portion of the front baffle 40 is further provided with a protrusion piece 43, and the protrusion piece 43 is matched with a corresponding groove on the discharge port of the compressor to mount the discharge valve on the compressor.
Figure 9 is a perspective view of a reed according to one embodiment of the present invention. As shown in fig. 9, the reed 9 includes a reed connecting portion 31 and a working portion 32 from bottom to top, two ends of the reed connecting portion 31 are respectively provided with a reed connecting hole 311, and the working portion 32 is elastically deformed under the action of the exhaust pressure flowing out of the air outlet hole to open or close the air outlet hole through the reed connecting holes 311 fixedly connected with the center seat, the front baffle, the rear baffle and the limiting plate.
Alternatively, the reed has a breaking strength of 1130-1270MPa and an elongation of 8-20%. The spring plate can be punched from a steel plate with machining allowance, the machining allowance of each side corresponding to half of the plate thickness. During grinding, the surface of the reed can develop a tensile stress of up to 200 MPa. These stresses, as well as the formation of stress concentration zones during grinding, if they are directed in the radial direction of the plate, will lead to a significant reduction in the service life of the plate. Thus, after the final grinding, repeated tempering is performed to relieve the stress, which is required in the clamping device, but the temperature does not exceed the temperature of the first tempering. Then, the plate is subjected to vibration polishing, burrs and sharp edges are removed, the roughness of the working surface is improved, and the plate is reinforced. The stress of the grinding surface is reduced by three times due to repeated tempering, and the vibration polishing completely eliminates the stress. The surface cleanliness class of the vibration-polished plate is.v.8-.9.
Optionally, referring back to fig. 1-3, the exhaust valve further includes a connector 60, and the two center seats, the reed, the front baffle, the rear baffle, and the limiting plate are fixedly connected by the connector 60 cooperating with the respective connecting holes. For example, the connection member 60 may be a bolt and a nut, and the center seat, the reed, the front barrier, the rear barrier, and the bottom of the restriction plate are fixedly connected by sequentially penetrating the bolt into the rear barrier connection hole 511, the reed connection hole 311 of the fourth reed, the center seat connection hole 141 of the second center seat, the reed connection hole 311 of the third reed, the restriction plate connection hole 211 of the restriction plate, the reed connection hole 311 of the second reed, the center seat connection hole 141 of the first center seat, the reed connection hole 311 of the first reed, and the front barrier connection hole 411, and locking them with the nut at the front of the front barrier. In the running process of the compressor, the connecting part of the reed is fixed, and the working part of the reed is rapidly opened and closed.
It should be noted that the discharge valve of the present invention is preferably used in a rotor piston compressor, however, those skilled in the art will appreciate that the discharge valve may be used in other types of compressors as well. Furthermore, while the above embodiments are mainly described in terms of two center seats, in other embodiments, the exhaust valve may include one center seat or more than two center seats, that is, the present invention is not intended to be limited to the number of center seats.
While the preferred embodiments of the present invention have been described in detail, it will be appreciated that those skilled in the art, upon reading the above teachings, may make various changes and modifications to the invention. Such equivalents are also intended to fall within the scope of the claims appended hereto.
Claims (10)
1. The utility model provides a compressor discharge valve, its characterized in that, discharge valve includes center seat, reed, preceding baffle and backplate set up respectively in the front portion and the rear portion of center seat, the bottom of reed with center seat and the bottom fixed connection of preceding baffle and backplate, wherein
The center seat is provided with an air inlet hole and an air outlet hole, the air inlet hole is arranged at the bottom of the center seat, the air outlet hole is arranged on two opposite surfaces of the center seat, the air outlet hole is provided with the reed, air enters from the air inlet and pushes the reed away to flow out of the air outlet hole, the front baffle limits the opening angle of the reed arranged between the front baffle and the center seat, and the rear baffle limits the opening angle of the reed arranged between the rear baffle and the center seat.
2. The compressor discharge valve of claim 1, wherein the discharge valve includes at least two center seats disposed side by side and a limiting plate disposed between the at least two center seats, the front and rear baffles being disposed at front and rear portions of the at least two center seats, respectively, and limiting the at least two center seats and the limiting plate between the front and rear baffles, the limiting plate limiting an opening angle of a reed disposed between the limiting plate and the center seat.
3. The compressor discharge valve of claim 1, wherein opposite surfaces of the center seat are provided with a plurality of ventilation slots extending in a height direction of the center seat, a bottom of the ventilation slots forming the air intake holes, side portions of the ventilation slots forming the air outlet holes, a depth of the ventilation slots gradually decreasing from the bottom to the top of the center seat and forming arc-shaped slots; preferably, the ventilation slots on the opposite surfaces of the central seat are symmetrically arranged and have the same shape and size.
4. The compressor discharge valve of claim 2, wherein the bottom of the center seat is provided with two connection portions, which are disposed at both ends of the bottom intake hole and are provided with connection holes to be fixedly connected with the reed, the front baffle, the rear baffle, and the limiting plate.
5. A compressor discharge valve according to claim 3, wherein the center seat includes a first portion having a uniform thickness and provided with the ventilation groove, and a second portion whose thickness gradually decreases from bottom to top and forms a top thickness smaller than that of the first portion in a height direction.
6. The compressor discharge valve according to claim 2, wherein the limiting plate includes a connection portion provided with a connection hole to be connected with the center seat, the reed, the front baffle and the rear baffle, and a limiting portion having a thickness gradually decreasing from bottom to top and forming a trapezoidal section, preferably, two opposite surfaces of the limiting portion are further provided with grooves extending from a left end of the limiting portion to a right end of the limiting portion; preferably, the grooves on two opposite surfaces of the limiting part are symmetrically arranged; preferably, at least two grooves are respectively arranged on two opposite surfaces of the limiting part.
7. The compressor discharge valve of claim 2, wherein the front and rear baffles are symmetrically arranged and include a connection portion provided with a connection hole to be connected with the at least two center seats, the reed, and the stopper portion, the thickness of the stopper portion gradually decreases from bottom to top so that a gap formed between the stopper portion and the reed gradually increases from bottom to top; preferably, a concave part is arranged at the lower part of the stop part, and the concave part extends from the left end of the stop part to the right end of the stop part; preferably, a protruding block is further provided on a surface of the connection portion of the front baffle plate, and the exhaust valve is mounted on the compressor through the protruding block.
8. The vent valve of claim 1 wherein the reed has a breaking strength of 1130-1270MPa and an elongation of 8-20%.
9. The compressor discharge valve of claim 2, further comprising a connector through which the at least two center seats, reed, front baffle, rear baffle, and limiting plate are fixedly connected.
10. A rotor piston compressor comprising a compressor discharge valve according to any one of the preceding claims 1-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310646928.6A CN116480820A (en) | 2023-05-31 | 2023-05-31 | Compressor exhaust valve and rotor piston compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310646928.6A CN116480820A (en) | 2023-05-31 | 2023-05-31 | Compressor exhaust valve and rotor piston compressor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN116480820A true CN116480820A (en) | 2023-07-25 |
Family
ID=87218032
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310646928.6A Pending CN116480820A (en) | 2023-05-31 | 2023-05-31 | Compressor exhaust valve and rotor piston compressor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN116480820A (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5947708A (en) * | 1995-08-21 | 1999-09-07 | Lg Electronics Inc. | Axial flow valve system for linear compressor |
| CN2878735Y (en) * | 2005-12-29 | 2007-03-14 | 西安庆安制冷设备股份有限公司 | Rotor type compressor |
| CN1940292A (en) * | 2005-09-27 | 2007-04-04 | 松下电器产业株式会社 | Hermetic compressor |
| WO2009062366A1 (en) * | 2007-11-17 | 2009-05-22 | Guang Dong Mei Zhi Refrigeration Equipment Co., Ltd | A discharge valve device of a rotary compressor |
| CN104763636A (en) * | 2015-04-17 | 2015-07-08 | 广东美芝制冷设备有限公司 | Exhausting valve assembly used for compressor and compressor with same |
| CN207393482U (en) * | 2017-08-22 | 2018-05-22 | 安徽美芝精密制造有限公司 | Rolling rotor-type air injection enthalpy-increasing compressor |
| CN111075966A (en) * | 2019-12-16 | 2020-04-28 | 珠海格力节能环保制冷技术研究中心有限公司 | Check valve, scroll compressor and air conditioner |
| CN213684531U (en) * | 2020-11-30 | 2021-07-13 | 安徽美芝精密制造有限公司 | Exhaust assembly, compressor and heat pump equipment |
| CN220037547U (en) * | 2023-05-31 | 2023-11-17 | 安徽杰博恒创航空科技有限公司 | Compressor exhaust valve and rotor piston compressor |
-
2023
- 2023-05-31 CN CN202310646928.6A patent/CN116480820A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5947708A (en) * | 1995-08-21 | 1999-09-07 | Lg Electronics Inc. | Axial flow valve system for linear compressor |
| CN1940292A (en) * | 2005-09-27 | 2007-04-04 | 松下电器产业株式会社 | Hermetic compressor |
| CN2878735Y (en) * | 2005-12-29 | 2007-03-14 | 西安庆安制冷设备股份有限公司 | Rotor type compressor |
| WO2009062366A1 (en) * | 2007-11-17 | 2009-05-22 | Guang Dong Mei Zhi Refrigeration Equipment Co., Ltd | A discharge valve device of a rotary compressor |
| CN104763636A (en) * | 2015-04-17 | 2015-07-08 | 广东美芝制冷设备有限公司 | Exhausting valve assembly used for compressor and compressor with same |
| CN207393482U (en) * | 2017-08-22 | 2018-05-22 | 安徽美芝精密制造有限公司 | Rolling rotor-type air injection enthalpy-increasing compressor |
| CN111075966A (en) * | 2019-12-16 | 2020-04-28 | 珠海格力节能环保制冷技术研究中心有限公司 | Check valve, scroll compressor and air conditioner |
| CN213684531U (en) * | 2020-11-30 | 2021-07-13 | 安徽美芝精密制造有限公司 | Exhaust assembly, compressor and heat pump equipment |
| CN220037547U (en) * | 2023-05-31 | 2023-11-17 | 安徽杰博恒创航空科技有限公司 | Compressor exhaust valve and rotor piston compressor |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP5828863B2 (en) | Gas compressor | |
| CN220037547U (en) | Compressor exhaust valve and rotor piston compressor | |
| JP5484463B2 (en) | Refrigerant compressor and heat pump device | |
| CN201568303U (en) | Symmetrical balance type synchronous rotating compression machine | |
| US8869837B2 (en) | Compressor | |
| KR101955272B1 (en) | Automobile Exhaust Control Device with Streamlined Twisting Wings | |
| CN116480820A (en) | Compressor exhaust valve and rotor piston compressor | |
| JPS58135396A (en) | Movable-blade compressor | |
| CN107061276B (en) | Rotary compressor | |
| WO2018155209A1 (en) | Compressor piston, compressor, and heat pump unit | |
| CN111005874A (en) | Silencing structure, compressor and air conditioner | |
| CN201636012U (en) | Exhaust structure of rotary compressor | |
| CN114151347B (en) | Cylinder, pump body structure, compressor and air conditioner | |
| CN112412786B (en) | High-efficient compressor exhaust structure | |
| CN210829717U (en) | Cylinder, pump body subassembly, compressor and air conditioner | |
| CN110836183A (en) | Compressor and compression mechanism thereof | |
| CN2658429Y (en) | Air inlet, exhaust valve plate structure of air-conditioning compressor | |
| CN117432629B (en) | Cylinder and roller compressor | |
| CN110805557A (en) | Cylinder, pump body subassembly, compressor and air conditioner | |
| CN212508809U (en) | Rolling rotor type compressor cylinder and compressor | |
| CN216665920U (en) | A many times oil return structure for electric compressor | |
| CN212508808U (en) | Rolling rotor type compressor cylinder and compressor | |
| JPH0217195Y2 (en) | ||
| CN208619346U (en) | Compressor and its compression mechanism | |
| CN221053927U (en) | Stopper, discharge valve subassembly, compressor and refrigeration plant |
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 |