CN216044417U

CN216044417U - Exhaust valve limiting structure of rotor compressor

Info

Publication number: CN216044417U
Application number: CN202122376341.7U
Authority: CN
Inventors: 方泽云; 邹红; 秦道乾; 胡亮; 甘念
Original assignee: Huangshi Donper Compressor Co Ltd
Current assignee: Huangshi Donper Compressor Co Ltd
Priority date: 2021-09-29
Filing date: 2021-09-29
Publication date: 2022-03-15
Anticipated expiration: 2031-09-29

Abstract

The utility model discloses a limiting structure of an exhaust valve of a rotor compressor, which comprises a limiting plate, an exhaust valve plate and a sound absorption pad, wherein the inner side of the limiting plate is provided with a vent hole, the limiting plate is arranged in a sectional inclined manner, one side of a connecting section is fixedly provided with a telescopic limiting assembly, the inner side of a filling cavity is fixedly provided with a lift control internal part, and the sound absorption pad is adhered to one side of the exhaust valve plate. According to the utility model, the telescopic limiting component, the lift control internal part and the vent hole are arranged on the inner side of the limiting plate, and the sound absorbing pad is arranged on one side of the exhaust valve plate, so that both sides of the exhaust valve plate can be subjected to a buffering effect during operation, and the operation noise of the compressor exhaust valve is reduced; through the telescopic limiting component and the buffer layer which are provided with the damping material, the telescopic layer made of the porous elastic material and the air holes on the inner side of the limiting plate, the deformation degree of the exhaust valve plate and the exhaust loss of the compressor are reduced, and the service life of the exhaust valve plate is effectively prolonged.

Description

Exhaust valve limiting structure of rotor compressor

Technical Field

The utility model relates to the technical field of compressors, in particular to a limiting structure of an exhaust valve of a rotor compressor.

Background

Including breathing in and carminative process during rotor compressor operation, the discharge valve piece that is located the gas vent outside during exhaust can be constantly strikeed by high-pressure exhaust, continuously pat in the gas vent outside, a large amount of noises have been produced in rotor compressor operation, and the expansion end lift of discharge valve piece is too big can lead to the discharge valve piece fracture, the life of discharge valve piece has been shortened, current exhaust limit structure is mostly installing in the outside limiting plate of discharge valve piece, because its limiting displacement to the discharge valve piece expansion end, limiting plate structure is most all fixed, the inboard collision with the discharge valve piece of limiting plate in operation process, noise when having increased the operation.

The traditional exhaust valve limiting structure reduces the lift variation of an exhaust valve plate by arranging a valve plate lift space which is suitable for the exhaust process at the inner side of a limiting plate, Chinese patent (CN202010420337.3) discloses an exhaust limiting plate and a compressor which improve the energy efficiency of the compressor, wherein the inner side of the limiting plate is provided with a limiting surface and a pit, the surface of which is arc-shaped, is attached to the surface of the exhaust valve plate when the exhaust valve plate is tilted, the exhaust valve plate is limited by two different lifts, the opening time and the rebound closing speed of an exhaust port are increased, and the energy efficiency of the compressor is improved, but the limiting plate structure is fixed, and potential energy stored in the valve plate can deform the valve plate in the repeated impact of high-pressure gas at the exhaust port and the repeated rebound process of the valve plate per se, so that the valve plate can not be attached to the outside of the exhaust port after rebound, the exhaust loss is caused, and the energy efficiency of the compressor is also adversely affected, and does not improve the noise during operation;

the traditional exhaust valve limiter adopts an elastic buffer structure to realize noise reduction, and Chinese patent (CN201811047374.3) discloses an exhaust valve plate limiter of an air conditioner compressor, wherein the elastic buffer part and a carbon fiber annular component are arranged to reduce the contact area or stress condition, so that the buffering and noise reduction functions are realized, but a spiral elastic ring in the structure is easy to deform under the impact of high-pressure gas, and the service life is not long.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a limiting structure of a vent valve of a rotor compressor, aiming at the problems in the prior art.

In order to achieve the purpose, the utility model adopts the technical scheme that:

the utility model provides a rotor compressor discharge valve limit structure, includes limiting plate, discharge valve piece and sound absorbing pad, the discharge valve piece includes stiff end and reed, mounting flange has been seted up at the both ends of limiting plate, mounting flange pass through the screw with the stiff end fixed connection of discharge valve piece, the limiting plate is the slope setting of segmentation, the limiting plate includes linkage segment and spacing section, the one end of linkage segment with the one end fixed connection of spacing section, the inboard fixed mounting of linkage segment has flexible spacing subassembly, the packing chamber has been seted up to the inboard of spacing section, the inboard fixed mounting in packing chamber has lift control internals, the sound absorbing pad adhesion in one side of discharge valve piece, the sound absorbing pad along the edge distribution of discharge valve piece in one side of discharge valve piece.

In some embodiments, the telescopic limiting component is a damping material member, the height of the telescopic limiting component from the connecting section increases in sequence along the direction from the connecting section to the limiting section, and the bottom surface of the telescopic limiting component is an arc surface.

In some embodiments, the inner bottom surface of the filling cavity is the same as and different from the shape of the reed of the air release valve plate, and the inner side of the filling cavity is larger than the outer side of the reed of the air release valve plate.

In some embodiments, the lift control trim comprises a buffer layer and a telescopic layer, one surface of the telescopic layer is fixedly arranged on the inner bottom surface of the filling cavity, and one surface of the buffer layer is fixedly connected with the other surface of the telescopic layer.

In some embodiments, the inner side of the limiting plate is provided with a plurality of vent holes, and the plurality of vent holes are uniformly distributed on the inner side of the limiting section.

In some embodiments, the elastic layer is a porous elastic material member and the buffer layer is a damping material member.

Further, in some embodiments, the fixing flange and the fixing end of the exhaust valve plate are provided with a plurality of fixing holes, and the screws are detachably mounted on the inner sides of the fixing holes.

Compared with the prior art, the utility model has the beneficial effects that:

1. the telescopic limiting assembly, the lift control internal part and the vent hole are arranged on the inner side of the limiting plate, the sound absorption pad is arranged on one side of the exhaust valve block, so that both sides of the exhaust valve block can be subjected to a buffering effect during operation, collision between the exhaust valve block and the limiting plate and between the exhaust valve block and the exhaust port is reduced, and operation noise of the compressor exhaust valve is reduced.

2. The telescopic limiting component and the buffer layer which are made of damping materials, the telescopic layer made of porous elastic materials and the air holes on the inner side of the limiting plate enable the reed of the exhaust valve block to be buffered in a segmented mode when ascending, ascending kinetic energy of the reed is absorbed by the telescopic limiting component, the telescopic layer and the buffer layer and converted into rebound potential energy, the deformation degree of the exhaust valve block and the exhaust loss of a compressor are reduced, the possibility of fracture of the exhaust valve block is reduced, and the service life of the exhaust valve block is effectively prolonged.

3. Through the packing chamber in limiting plate inboard set up flexible layer, buffer layer and air vent, make lift control internals receive the ascending extrusion back of exhaust valve piece, receive the resilience of flexible layer for the rebound speed of exhaust valve piece has reduced the exhaust loss, has effectively prolonged limit structure's life.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic diagram of a limiting plate structure according to the present invention;

FIG. 3 is a bottom view of the limiting plate structure of the present invention;

FIG. 4 is a top view of a limiting plate structure according to the present invention;

in the figure: 1. a limiting plate; 2. an exhaust valve plate; 3. a sound absorbing pad; 101. a connecting section; 102. a limiting section; 103. filling the cavity; 104. a vent hole; 1011. a telescopic limiting component; 1031. lift controls internals.

Detailed Description

The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Example 1

As shown in fig. 1-4, a rotor compressor discharge valve limit structure, including limiting plate 1, discharge valve piece 2 and sound absorption pad 3, discharge valve piece 2 includes stiff end and reed, mounting flange has been seted up at the both ends of limiting plate 1, mounting flange passes through the stiff end fixed connection of screw with discharge valve piece 2, limiting plate 1 is the slope of segmentation setting, limiting plate 1 includes linkage segment 101 and spacing section 102, the one end of linkage segment 101 and the one end fixed connection of spacing section 102, the inboard fixed mounting of linkage segment 101 has flexible spacing subassembly 1011, fill chamber 103 has been seted up to the inboard of spacing section, the inboard fixed mounting that fills chamber 103 has lift control internals, sound absorption pad 10313 adheres in one side of discharge valve piece, sound absorption pad 3 distributes in one side of discharge valve piece 2 along the edge of discharge valve piece 2, sound absorption pad 3 is the sound absorption strip.

The arrangement of the telescopic limiting assembly 1011, the lift control internal part 1031, the vent hole 104 and the sound absorption pad 3 ensures that when the tongue spring of the exhaust valve plate 2 is impacted and ascended by high-pressure gas, the tongue spring is firstly limited by the telescopic limiting assembly 1011, the tongue spring continuously ascends and extrudes the lift control internal part 1031, the lift control internal part 1031 absorbs the kinetic energy of the tongue spring part and converts the kinetic energy into rebound potential energy, the tongue spring falls to the sound absorption pad 3 to be contacted with the periphery of the exhaust port, the collision between the exhaust valve plate 2 and the limiting plate 1 and the exhaust port is reduced, and the operation noise of the exhaust valve is effectively reduced.

As shown in fig. 1, the telescopic limiting component 1011 is a damping material member, the height of the telescopic limiting component 1011 from the connecting section 101 increases in sequence along the direction from the connecting section to the limiting section, and the bottom surface of the telescopic limiting component 1011 is an arc surface.

The setting of flexible spacing subassembly 1011 makes flexible spacing subassembly 1011 can more laminate the exhaust valve piece 2 of upwarping, has reduced the resilience pressure that exhaust valve piece 2 received, is favorable to reducing the deformation degree of exhaust valve piece 2.

The inner bottom surface of the filling cavity 103 is the same as the reed shape of the air release valve plate 2, and the size of the reed shape is different, and the inner side of the filling cavity 103 is larger than the outer side of the reed of the air release valve plate 2.

The shape and size of the filling cavity 103 are set, so that the lift control internal part 1031 in the filling cavity 103 can completely absorb the kinetic energy of the reed, the impact force of the reed is reduced, and the running noise of the exhaust valve plate 2 is reduced.

As shown in fig. 1, the lift control internal component 1031 includes a buffer layer and a telescopic layer, one surface of the telescopic layer is fixedly mounted on the inner bottom surface of the filling cavity 103, and one surface of the buffer layer is fixedly connected with the other surface of the telescopic layer.

The arrangement of the buffer layer and the telescopic layer enables the reed of the exhaust valve block 2 to be buffered by the buffer layer, and reduces the noise of collision with the reed of the exhaust valve block 2 and the stress condition of the reed of the exhaust valve block 2.

Wherein, the flexible layer is the porous elastic material component, and the buffer layer is the damping material component.

The buffer layer and the telescopic layer are made of materials, so that the reed of the exhaust valve block 2 is absorbed by the buffer effect of the buffer layer and the potential energy of the telescopic layer in the rising process, the lift variation of the exhaust valve block 2 is effectively controlled, and the possibility of deformation of the exhaust valve block 2 is reduced.

Example 2

A limiting structure of a rotor compressor exhaust valve is improved on the basis of embodiment 1: the inner side of the limiting plate 1 is provided with a plurality of vent holes 104, and the plurality of vent holes 104 are uniformly distributed on the inner side of the limiting section 102.

The setting of air vent 104 makes the inboard accessible air vent of spacing section carry out the exhaust and the process of admitting air on telescopic layer to the process of being extruded shrink and resilience of telescopic layer has reduced exhaust loss with higher speed.

Example 3

A limiting structure of a rotor compressor exhaust valve is improved on the basis of embodiment 1: the fixed end of the fixed flange and the exhaust valve plate 2 is provided with a plurality of fixed holes, and the screws are detachably mounted on the inner sides of the fixed holes.

Fix with screw forms a riveting point in the fixed orifices, discharge valve limit structure's both ends all are equipped with the riveting point, respectively have a riveting point on the mounting flange at limiting plate 1 both ends and on the fixed end of discharge valve piece 2 among the embodiment 1, as the improvement scheme, respectively establish a plurality of riveting points on the mounting flange at limiting plate 1 both ends and on the fixed end of discharge valve piece 2, consider limiting plate 1 and discharge valve piece 2's size, respectively establish two to three, can prevent like this that limiting plate 1 from using after a period deformation or position excursion lead to the valve piece to leak.

Example 4

A limiting structure of a rotor compressor exhaust valve is improved on the basis of embodiments 1 and 2: the sound absorption pad 3 comprises sound absorption material round pads, the number of the sound absorption material round pads is a plurality of, and the sound absorption material round pads are uniformly distributed on one side of the exhaust valve plate 2.

The setting of sound absorbing material round pad can reduce the noise that exhaust valve block 2 and gas vent outside collision produced, has reduced the cost of making an uproar.

Example 5

A limiting structure of a rotor compressor exhaust valve is improved on the basis of embodiments 1 and 2: the lift control internal component 1031 includes a housing and a spring, the spring is fixedly installed in the housing, the housing is an elastic material component, and the top surface of the housing is fixedly connected with the inner bottom surface of the filling cavity.

The material setting of casing and the setting of inside spring make lift control internals 1031 can absorb the kinetic energy that exhaust valve piece 2 reed rises fast to accelerate its speed of kick-backing, reduce the exhaust loss.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A limiting structure of a rotor compressor exhaust valve comprises a limiting plate (1), an exhaust valve plate (2) and a sound absorption pad (3), wherein the exhaust valve plate (2) comprises a fixed end and a reed, fixed flanges are arranged at two ends of the limiting plate (1) and are fixedly connected with the fixed end of the exhaust valve plate (2) through screws, the limiting structure is characterized in that the limiting plate (1) is arranged in a subsection inclined mode, the limiting plate (1) comprises a connecting section (101) and a limiting section (102), one end of the connecting section (101) is fixedly connected with one end of the limiting section (102), a telescopic limiting assembly (1011) is fixedly arranged on the inner side of the connecting section (101), a filling cavity (103) is arranged on the inner side of the limiting section, a lift control internal part (1031) is fixedly arranged on the inner side of the filling cavity (103), and the sound absorption pad (3) is adhered to one side of the exhaust valve plate, the sound absorption pad (3) is distributed on one side of the exhaust valve plate (2) along the edge of the exhaust valve plate (2).

2. The limiting structure of the exhaust valve of the rotor compressor as recited in claim 1, wherein the telescopic limiting component (1011) is a damping material component, the height of the telescopic limiting component (1011) from the connecting section (101) increases in sequence along the direction from the connecting section to the limiting section, and the bottom surface of the telescopic limiting component (1011) is an arc surface.

3. The limiting structure of the exhaust valve of the rotor compressor according to claim 1, wherein the inner bottom surface of the filling cavity (103) and the reed of the exhaust valve plate (2) have the same shape and different size, and the inner side of the filling cavity (103) is larger than the outer side of the reed of the exhaust valve plate (2).

4. The limiting structure of an exhaust valve of a rotor compressor according to claim 1, wherein the lift control internal part (1031) comprises a buffer layer and a telescopic layer, one surface of the telescopic layer is fixedly installed on the inner bottom surface of the filling cavity (103), and one surface of the buffer layer is fixedly connected with the other surface of the telescopic layer.

5. The limiting structure of the exhaust valve of the rotor compressor according to claim 1, wherein the limiting plate (1) is provided with a plurality of vent holes (104) on the inner side, and the plurality of vent holes (104) are uniformly distributed on the inner side of the limiting section (102).

6. The limiting structure for the exhaust valve of the rotor compressor as claimed in claim 4, wherein the expansion layer is a porous elastic material member, and the buffer layer is a damping material member.

7. The limiting structure of the exhaust valve of the rotor compressor as claimed in claim 1, wherein the fixing end of the fixing flange and the exhaust valve plate (2) is provided with a plurality of fixing holes, and the screws are detachably mounted at the inner sides of the fixing holes.