CN210623028U - Exhaust valve plate with flow guide function and refrigeration compressor thereof - Google Patents
Exhaust valve plate with flow guide function and refrigeration compressor thereof Download PDFInfo
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- CN210623028U CN210623028U CN201921234915.3U CN201921234915U CN210623028U CN 210623028 U CN210623028 U CN 210623028U CN 201921234915 U CN201921234915 U CN 201921234915U CN 210623028 U CN210623028 U CN 210623028U
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Abstract
The utility model discloses an exhaust valve plate with flow guiding function and a refrigeration compressor thereof, comprising a valve plate body, wherein the valve plate body is provided with a fixed end and a free end, the upper edge of the free end is provided with a plurality of tongue pieces, the tongue pieces are bent upwards along the air flow overflowing direction, and the tongue pieces are evenly and equidistantly distributed on the free end; this discharge valve piece adopts the profile modeling design, and at the tongue mouth department of discharge valve piece, the symmetry increases a plurality of tongues newly, and little tongue piece kickup for when the air current discharges from the exhaust hole, receive the water conservancy diversion effect of tongue piece, make the air current motion more steady, the air current is discharged regularly, can not be discrete state, with the vibration that reduces discharge valve piece and the noise that produces.
Description
Technical Field
The utility model relates to discharge valve piece and compressor technical field, concretely relates to discharge valve piece and compressor with water conservancy diversion function.
Background
In the prior art, in the process of compressor exhaust, a valve plate is bent upwards and opened and leans against a valve plate baffle, a high-speed high-pressure gas-liquid mixture ejected from a compressor cylinder impacts the valve plate, and due to the fact that the valve plate is thin in thickness and low in rigidity, under the impact of high-speed gas, self-excited vibration similar to a flag flying in wind can occur, and the self-excited vibration is called flutter. The flutter may cause fatigue fracture of the valve plate, and the reliability of the valve plate structure is reduced; meanwhile, high-speed airflow flows through the valve plate in a turbulent flow state, and a plurality of small vortexes are formed in the lower surface of the valve plate, so that pulsation noise is brought, and noise vibration of the compressor is increased.
The common exhaust valve plate is of a tongue-shaped structure, and no other structure is arranged at a tongue opening, so that the exhaust valve plate is single in form and simple in structure. When the compressor runs, the tongue opening of the exhaust valve plate is opened, gas is discharged in a discrete state and is influenced by continuous exhaust, and the vibration of the exhaust valve plate is large; in addition, in the opening process of the exhaust valve plate, the exhaust valve plate is periodically opened/closed, and the dynamic behavior of airflow movement presents nonlinear characteristics, so that the reliability of the valve plate structure is influenced.
There is also an air discharge valve sheet improved in structure to improve noise, as disclosed in the chinese utility model patent (publication No. CN207701327U) in 2018, the air discharge valve sheet includes: the tail part is used for fixing the exhaust valve plate on a flange of the compressor; the head corresponds to the position of an exhaust port of the compressor, can be turned upwards relative to the tail to open the exhaust port of the compressor and return downwards to close the exhaust port of the compressor, a protruding structure is further arranged on the lower surface of the head in a downward protruding mode, and the protruding height of the protruding structure along the length direction of the exhaust valve plate gradually rises from the tail to the head. The utility model can utilize the convex structure to play the roles of turbulence and flow guiding, disperse the impact force of gas on the valve block, and reduce the flutter and the pulsation noise of the valve block; however, the convex structure is arranged over against the exhaust port, the size and the number of the convex structure are limited, the closing of the exhaust valve plate can be influenced by a little larger size, and the convex structure can interfere with the exhaust port; when the quantity is less or the size is too small, the flow guide effect is not obvious, and the pulsation noise is not reduced.
Disclosure of Invention
The utility model aims at providing an exhaust valve piece and compressor with water conservancy diversion function to the problem that prior art exists.
In order to achieve the above object, the utility model adopts the following technical scheme:
the utility model provides an exhaust valve piece with water conservancy diversion function, includes the valve block body, the valve block body has stiff end and free end, the upper edge department of free end is equipped with a plurality of tongue pieces, the tongue piece overflows the direction kickup along the air current, the even equidistance of tongue piece distributes on the free end.
This discharge valve piece adopts the profile modeling design, and at the tongue mouth department of discharge valve piece, the symmetry increases a plurality of tongues newly, and little tongue piece kickup for when the air current discharges from the exhaust hole, receive the water conservancy diversion effect of tongue piece, make the air current motion more steady, the air current is discharged regularly, can not be discrete state, with the vibration that reduces discharge valve piece and the noise that produces.
In addition, by means of the tongue piece, when the exhaust valve plate is opened/closed periodically, the airflow movement dynamics behavior presents linear characteristics, the impact force applied to the exhaust valve plate is uniform, and the reliability of the valve plate structure is improved.
Simultaneously, the tongue piece is arranged at the edge of the exhaust valve block, so that the exhaust hole cannot be interfered, the closing of the exhaust valve block is not influenced, the size, the number and the shape of the tongue piece are not limited by the exhaust hole, the adaptability is better, and the tongue piece is easy to switch with the existing exhaust valve block.
Preferably, the angle at which the tongue is bent upwards is 15 ° to 45 °.
Preferably, the tongue is bent upwards by an angle of 30 °.
Preferably, the free end is the arc, the tongue piece is around the axle center equipartition of free end sets up to 8, the tongue piece is flat bending form.
Preferably, the tongue piece and the valve plate body are integrally formed. Is easy for batch production and processing.
Furthermore, the valve plate body is arranged on the valve plate, the valve plate is provided with an inwards-concave mounting part, and the valve plate is provided with an exhaust hole at the mounting part; the one side that the free end has the tongue piece is back to the exhaust hole setting, fixed end fixed mounting is in the installation department is kept away from the one end in exhaust hole.
Further, an exhaust limiting plate is further arranged above the valve plate body and arranged on the mounting portion; and a groove is formed in the exhaust limiting plate at a position corresponding to the tongue piece.
Furthermore, the tongue piece is made of elastic materials.
Further, the middle part of the tongue piece bulges outwards along the direction of the vertical central line, and the bulge is gradually reduced from the root part to the top part of the tongue piece.
The utility model also provides a compressor has valve plate and exhaust hole, and the aforesaid is arbitrary exhaust valve block with water conservancy diversion function.
Compared with the prior art, the beneficial effects of the utility model are that:
1. the exhaust valve plate with the flow guide function can improve the starting when the compressor runs, is beneficial to the stability of the whole machine core and reduces the noise and the vibration;
2. the air flow is more stable under the flow guiding action of the tongue piece, the air flow is regularly discharged and can not be in a discrete state, and the vibration of the exhaust valve plate and the noise generated by the exhaust valve plate are reduced;
3. the air exhaust valve plate has the advantages that due to the tongue piece, when the air exhaust valve plate is opened/closed periodically, the air flow movement dynamics behavior presents linear characteristics, the air exhaust valve plate is subjected to uniform impact force, and the reliability of the valve plate structure is improved;
4. the exhaust valve plate is simple in structure, free of influence of overall layout of the movement, capable of meeting overall design requirements and easy to switch with an existing structure through profiling design.
Drawings
Fig. 1 is a schematic perspective view of an exhaust valve plate with a flow guiding function according to the present invention;
fig. 2 is an enlarged schematic view of a tongue piece of an exhaust valve plate with a flow guiding function according to the present invention;
fig. 3 is a schematic view of another tongue piece of the exhaust valve plate with a flow guiding function according to the present invention;
FIG. 4 is a cross-sectional view of another tongue A-A of the air bleed valve with flow guide of the present invention;
FIG. 5 is a cross-sectional view of another tongue B-B of an exhaust valve with flow guide function of the present invention;
in the figure: 1. a fixed end; 101. a groove; 102. concave holes; 2. an elastic portion; 3. a free end; 4. a tongue piece; 401. a bending section; 402. a flow guide part; 403. and (4) bulging.
Detailed Description
The technical solution of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, the described embodiments are only some embodiments, not all embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
The first embodiment is as follows:
as shown in fig. 1 and 2, an exhaust valve plate with water conservancy diversion function, includes the valve plate body, the valve plate body has stiff end 1 and free end 3, be connected by elastic component 2 between stiff end 1 and the free end 3, the upper edge of free end 3 is equipped with 8 tongue pieces 4, tongue piece 4 overflows the direction kickup along the air current, the even equidistance of tongue piece 4 is in on the free end 3.
The fixing end 3 is provided with a groove 101 and a concave hole 102 which are used for being matched and connected with the valve plate, and the whole fixing end 1 is fixed on the valve plate; elastic part 2 extends to the direction in exhaust hole from the middle part of stiff end 3, and outline size crescent, free end 3 and the 2 circular arcs of elastic part transition, and free end 3 is located directly over the exhaust hole, and when not exhausting, the back of free end 3 closely laminates on the exhaust hole, and the discharge valve piece is closed state, and during the exhaust, gas spills over from the exhaust hole, pushes up free end 3, and gas escape.
This discharge valve piece adopts the profile modeling design, and a plurality of tongue pieces 4 are newly-increased to the symmetry on discharge valve piece's free end 3, and tongue piece 4 is upwards crooked for when the air current discharges from the exhaust hole, receive tongue piece 4 water conservancy diversion effect, make the air current motion more steady, the air current is discharged regularly, can not be the discrete state, with the vibration that reduces discharge valve piece and the noise that produces.
In addition, by virtue of the tongue piece 4, when the exhaust valve plate is periodically opened/closed, the dynamic behavior of the airflow movement presents a linear characteristic, the impact force applied to the exhaust valve plate is uniform, and the reliability of the valve plate structure is improved.
Set up simultaneously at the discharge valve piece edge tongue piece 4 can not interfere the exhaust hole, does not influence the closure of discharge valve piece, and the size, quantity and the shape of tongue piece 4 do not receive the restriction in exhaust hole, and adaptability is better, easily switches with current discharge valve piece.
Specifically, the tongue 4 is composed of a bending portion 401 and a flow guiding portion 402, and both sides of the bending portion 401 are in arc transition with the edge of the free end 3, so that an arc-shaped airflow channel is formed between adjacent bending portions 401, and the airflow channel gradually increases towards the flow guiding portion 402. So that the gas is evenly divided and then overflows along the airflow channel.
Preferably, the bent portion 401 is bent upward at an angle of 45 °. Is suitable for the exhaust valve plate and the exhaust hole with slightly larger size.
Preferably, the outer contour of the free end 3 is circular arc, the tongue pieces 4 are symmetrically arranged around the center of the axis of the free end 3, and the tongue pieces 4 are all flat and curved.
Preferably, the tongue piece 4 and the valve plate body are integrally formed. Is easy for batch production and processing. Can be rapidly produced by a punch forming mode.
Example two:
the valve plate body is arranged on a valve plate of the compressor, the valve plate is provided with an inwards-concave mounting part, and the valve plate is provided with a vent hole at the mounting part; the one side that free end 3 has tongue piece 4 is back to the exhaust hole sets up, 1 fixed mounting of stiff end is in the installation department is kept away from the one end in exhaust hole.
Further, an exhaust limiting plate is further arranged above the valve plate body, one end of the exhaust limiting plate is arranged on the mounting portion, and the edges of the exhaust limiting plate and the mounting portion are connected with each other; and a groove is formed in the exhaust limiting plate at the position corresponding to the tongue piece 4. The exhaust limiting plate can reduce the loss of the opening resistance of the exhaust valve plate, and the groove is used for avoiding the tongue piece 4.
Example three:
this embodiment differs from the first embodiment in that a tongue of another configuration is provided.
As shown in fig. 3, 4 and 5, the tongue 3 has a triangular shape, the middle of the tongue 3 is bulged outward along the vertical center line, and the bulge 403 is gradually reduced from the root to the top of the tongue 3. The arrangement of the bulge 403 is beneficial to the flow towards the two sides of the tongue piece 4, and the flow guiding effect is increased.
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 invention, the scope of which is defined in the appended claims and their equivalents.
Claims (10)
1. The utility model provides an exhaust valve piece with water conservancy diversion function, includes the valve block body, the valve block body has stiff end and free end, its characterized in that, the upper edge department of free end is equipped with a plurality of tongues, the tongue overflows the direction kickup along the air current, the even equidistance of tongue distribute be in on the free end.
2. The discharge valve sheet with flow guide function as claimed in claim 1, wherein the upward bending angle of the tongue piece is 15 ° to 45 °.
3. The discharge valve sheet with a flow guide function according to claim 1 or 2, wherein the tongue piece is bent upward by an angle of 30 °.
4. The vent valve plate with the flow guide function according to claim 1 or 2, wherein the free end is arc-shaped, the number of the tongue pieces is 8 around the axis of the free end, and the tongue pieces are all flat and curved.
5. The vent plate with flow guide function of claim 1, wherein the tongue piece is integrally formed with the plate body.
6. The exhaust valve plate with the flow guide function according to claim 1, wherein the valve plate body is arranged on a valve plate, the valve plate is provided with a concave mounting part, and the valve plate is provided with an exhaust hole at the mounting part; the one side that the free end has the tongue piece is back to the exhaust hole setting, fixed end fixed mounting is in the installation department is kept away from the one end in exhaust hole.
7. The vent valve plate with the flow guide function according to claim 6, wherein an exhaust limiting plate is further arranged above the valve plate body, and the exhaust limiting plate is arranged on the mounting portion; and a groove is formed in the exhaust limiting plate at a position corresponding to the tongue piece.
8. The vent plate of claim 1, wherein the tongue is made of an elastic material.
9. The discharge valve plate with flow guide function as claimed in claim 1, wherein the middle portion of the tongue protrudes outward along the vertical center line, and the protrusion gradually decreases from the root to the top of the tongue.
10. A refrigeration compressor, characterized in that, the refrigeration compressor has the discharge valve plate with flow guiding function of any claim 1, 2, 5 ~ 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921234915.3U CN210623028U (en) | 2019-08-01 | 2019-08-01 | Exhaust valve plate with flow guide function and refrigeration compressor thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921234915.3U CN210623028U (en) | 2019-08-01 | 2019-08-01 | Exhaust valve plate with flow guide function and refrigeration compressor thereof |
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| Publication Number | Publication Date |
|---|---|
| CN210623028U true CN210623028U (en) | 2020-05-26 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921234915.3U Active CN210623028U (en) | 2019-08-01 | 2019-08-01 | Exhaust valve plate with flow guide function and refrigeration compressor thereof |
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| CN (1) | CN210623028U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110285039A (en) * | 2019-08-01 | 2019-09-27 | 黄石东贝电器股份有限公司 | A kind of exhaust valve plate and its refrigeration compressor with diversion function |
-
2019
- 2019-08-01 CN CN201921234915.3U patent/CN210623028U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110285039A (en) * | 2019-08-01 | 2019-09-27 | 黄石东贝电器股份有限公司 | A kind of exhaust valve plate and its refrigeration compressor with diversion function |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20210615 Address after: No.6, East Jinshan Avenue, Huangshi economic and Technological Development Zone, Huangshi City, Hubei Province Patentee after: Huangshi Dongbei Compressor Co.,Ltd. Address before: No.6, East Jinshan Avenue, Huangshi economic and Technological Development Zone, Huangshi City, Hubei Province Patentee before: Huangshi Dongbei Electrical Appliance Co.,Ltd. |
|
| CB03 | Change of inventor or designer information | ||
| CB03 | Change of inventor or designer information |
Inventor after: Yang Baichang Inventor after: Xiao Jianhua Inventor after: Chen Gang Inventor after: Li Huajun Inventor before: Yang Bailv Inventor before: Xiao Jianhua Inventor before: Chen Gang Inventor before: Li Huajun |