CN107288852B - A kind of pressure adaptive plate member - Google Patents
A kind of pressure adaptive plate member Download PDFInfo
- Publication number
- CN107288852B CN107288852B CN201710604763.0A CN201710604763A CN107288852B CN 107288852 B CN107288852 B CN 107288852B CN 201710604763 A CN201710604763 A CN 201710604763A CN 107288852 B CN107288852 B CN 107288852B
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- Prior art keywords
- valve
- plate
- valve plate
- suction
- pressure
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Classifications
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- 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
- F04B39/102—Adaptations or arrangements of distribution members the members being disc valves
-
- 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
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Check Valves (AREA)
- Compressor (AREA)
Abstract
The invention discloses a kind of pressure adaptive plate members, for Compressor Technology field, including valve plate and valve block, suction hole, gas vent and relief hole are opened up on valve plate, valve block includes the suction valve chip being located on front side of valve plate and the exhaust valve plate being located on rear side of valve plate, flexible air-breathing tongue piece is equipped on suction valve chip in the front side of suction hole, suction valve chip avoids gas vent and relief hole；Exhaust valve plate is equipped with flexible exhaust tongue piece in the rear side of gas vent, and exhaust valve plate avoids air inlet and relief hole, is equipped with relief valve in relief hole.The present invention adds relief valve on valve plate, guarantee in the not increased situation of suction valve chip thickness, when system exception causes pressure at expulsion excessively high, relief valve is opened, effect of the pressure at expulsion to suction valve chip is reduced, guarantees that the tongue piece stress of suction valve chip is unlikely to excessive and leads to breakage.Meanwhile such organization plan does not change the structure of original suction valve chip, it is ensured that the air input efficiency of compressor guarantees the performance of compressor.
Description
Technical field
The present invention is used for Compressor Technology field, more particularly to a kind of pressure adaptive plate member.
Background technique
The course of work of existing compressor mainly includes breathing process and exhaust process.In the breathing process of compressor,
Pressure of inspiration(Pi) belongs to low pressure, and air-flow jacking force is small, and suction valve chip is opened, and exhaust valve plate is closed；In the exhaust process of compressor,
Pressure at expulsion belongs to high pressure, and air-flow jacking force is big, and suction valve chip is closed, and exhaust valve plate is opened.Suction valve chip and exhaust valve plate are
An important elastic element in reciprocating compressor, if valve block damages, compressor loses the conveying function to gas, only
It can scrap.Air valve safe design can satisfy requirements for life under normal circumstances, but when refrigerator system occurs abnormal, such as be perfused
Amount mistake causes balance pressure superelevation, liquid to enter cylinder holes and cause liquid hammer etc., then the abnormal pressure at expulsion of superelevation may result in
Suction valve chip damages and scraps compressor.
Under stress same case, valve block deflection and throttle slice thickness are negatively correlated, valve block deflection with valve block thickness
Increase and reduces.Therefore the main means of prevention suction valve chip breakage at present are the thickness for increasing suction valve chip, reduce valve block deformation
It measures to improve the compressive resistance of valve block.
But increases suction valve chip thickness and will lead to the reduction of valve block deflection, then in breathing process, pressure of inspiration(Pi) one
Fixed, air-flow jacking force is basicly stable, and suction valve chip opening degree is not big enough, and gas flow area reduces, compressor air input efficiency
It is low.
Summary of the invention
The purpose of the present invention is to provide a kind of pressure adaptive plate members, when there is pressure anomaly in refrigerator system, row
Atmospheric pressure carries out pressure release when reaching a threshold value, reduce pressure peak, reduces suction valve chip breakage risk, improves compressor valve
Reliability, reduces the quality cost of compressor, while avoiding reducing compressor air input efficiency.
The technical solution adopted by the present invention to solve the technical problems is：A kind of pressure adaptive plate member, including valve
Plate and valve block open up suction hole, gas vent and relief hole on the valve plate, and the valve block includes the inlet valve being located on front side of valve plate
Piece and the exhaust valve plate being located on rear side of valve plate are equipped with flexible air-breathing tongue piece in the front side of suction hole on the suction valve chip, inhale
Air valve plate avoids gas vent and relief hole；The exhaust valve plate is equipped with flexible exhaust tongue piece, exhaust valve in the rear side of gas vent
Piece avoids air inlet and relief hole, is equipped with relief valve in the relief hole.
It is further used as the improvement of technical solution of the present invention, and the relief hole is pre-small post-large bellmouth, the pressure release
Valve is the pressure release needle-valve being located in the bellmouth, and the pressure release needle-valve has can be pre-small post-large with bellmouth cooperation
The conical surface, the valve plate are equipped with the elastic element that pressure release needle-valve can be driven to reset after pressure release.
It is further used as the improvement of technical solution of the present invention, and the relief hole is conical bore, and the pressure release needle-valve has can
With the circular conical surface of conical bore cooperation.
It is further used as the improvement of technical solution of the present invention, and the pressure release needle-valve is matched with conical bore merges completely enclosed pressure release
The rear end face of Kong Shi, the pressure release needle-valve are concordant with the trailing flank of valve plate.
It is further used as the improvement of technical solution of the present invention, and the elastic element is located on rear side of the valve plate, elastic element
One end extend at the rear end face of pressure release needle-valve.
It is further used as the improvement of technical solution of the present invention, and one end and the valve plate of the elastic element are located by connecting, another
End extends to the rear end face of pressure release needle-valve along valve plate surface.
It is further used as the improvement of technical solution of the present invention, the valve plate be equipped with positioning groove, the elastic element with
One end that valve plate is located by connecting is equipped with the positioning convex platform being embedded in the positioning groove, further includes cylinder head, in the cylinder head
Equipped with the compact heap being pressed on the positioning convex platform in the positioning groove.
It is further used as the improvement of technical solution of the present invention, and the cylinder head, which is equipped with, can limit the elastic element maximum
The positive stop lug boss of lift.
It is further used as the improvement of technical solution of the present invention, and the exhaust tongue piece maximum can be limited by being equipped on rear side of the valve plate
The exhaust valve limit plate of lift.
Beneficial effects of the present invention：The present invention adds relief valve on the basis of existing design on valve plate, guarantees air-breathing
In the not increased situation of throttle slice thickness, when system exception leads to pressure at expulsion excessively high (reaching 5MPa), relief valve is opened, and is reduced
Effect of the pressure at expulsion to suction valve chip guarantees that the tongue piece stress of suction valve chip is unlikely to excessive and leads to breakage.Meanwhile it is such
Organization plan does not change the structure of original suction valve chip, it is ensured that the air input efficiency of compressor guarantees the performance of compressor.
Detailed description of the invention
The present invention will be further explained below with reference to the attached drawings：
Fig. 1 is schematic structural view of the invention；
Fig. 2 is partial enlarged view at A in Fig. 1；
Fig. 3 is pressure release needle valve structure schematic diagram of the present invention；
Fig. 4 is elastic element structure schematic diagram of the present invention；
Fig. 5 is air cylinder head structure schematic diagram of the present invention.
Specific embodiment
Referring to figs. 1 to Fig. 5, that show the specific structures of the preferred embodiments of the invention.It will be detailed below this
Invent the design feature of each component, and when if there is being described to direction (upper and lower, left and right, before and after), it is with knot shown in FIG. 1
Structure is reference description, but actual use direction of the invention is not limited thereto.
The present invention provides a kind of pressure adaptive plate member, including valve plate 1 and valve block, suction is opened up on the valve plate 1
Stomata, gas vent and relief hole 11, the valve block include the suction valve chip 2 for being located at 1 front side of valve plate and the row for being located at 1 rear side of valve plate
Air valve plate 3, is equipped with flexible air-breathing tongue piece on the suction valve chip 2 in the front side of suction hole, suction valve chip 2 avoid gas vent and
Relief hole 11；The exhaust valve plate 3 is equipped with flexible exhaust tongue piece in the rear side of gas vent, exhaust valve plate 3 avoid air inlet and
Relief hole 11 is equipped with the exhaust valve limit plate 4 that can limit the exhaust tongue piece maximum lift on rear side of the valve plate 1.The pressure release
Relief valve is equipped in hole 11.The present invention adds relief valve on the basis of existing design on valve plate, guarantees suction valve chip thickness
In not increased situation, when system exception leads to pressure at expulsion excessively high (such as >=5MPa), relief valve is opened, and reduces exhaust pressure
Effect of the power to suction valve chip guarantees that the tongue piece stress of suction valve chip is unlikely to excessive and leads to breakage.Meanwhile such structure side
Case does not change the structure of original suction valve chip, does not change Standard Valve Design scheme, avoids influencing compressor performance, guarantees that compressor is inhaled
Gas circulation area guarantees compressor air input efficiency.
As a preferred embodiment of the present invention, the relief hole 11 is pre-small post-large bellmouth, and the relief valve is
The pressure release needle-valve 5 being located in the bellmouth, the pressure release needle-valve 5 have the pre-small post-large cone that can cooperate with the bellmouth
Face, the valve plate 1 be equipped with pressure release needle-valve 5 can be driven to reset after pressure release elastic element 6, when pressure at expulsion it is excessively high (such as
>=5MPa) when, pressure at expulsion overcomes the elastic force of elastic element 6, to rear side pushing tow pressure release needle-valve 5, pressure release needle-valve 5 and relief hole it
Between there is gap, for hypertonia exhaust be discharged, thus avoid damage suction valve chip, when pressure at expulsion restore after, in bullet
Property element 6 under the action of, pressure release needle-valve 5 reset, seal the relief hole 11, gas avoided to flow out.
Relief hole 11 can be set as pyramid hole or conical bore, preferably, the relief hole 11 is conical bore, the pressure release needle
Valve 5 has the circular conical surface that can cooperate with the conical bore.
In the present embodiment, pressure release needle-valve 5 is in a circular table shape, and the pressure release needle-valve 5 is matched with conical bore merges completely enclosed pressure release
When hole 11, the rear end face of the pressure release needle-valve 5 is concordant with the trailing flank of valve plate 1.
The structure types such as spring, torsional spring can be used in elastic element 6, as a preferred embodiment of the present invention, elastic element 6
In bar shaped sheet, the elastic element 6 is located at 1 rear side of valve plate, and one end of elastic element 6 extends to the rear end of pressure release needle-valve 5
At face.One end of the elastic element 6 is located by connecting with valve plate 1, after the other end extends to pressure release needle-valve 5 along 1 surface of valve plate
End face.
In order to avoid exhaust process elastic element 6 shifts, and elastic element 6 is facilitated to install, is set on the valve plate 1
There is positioning groove, the elastic element 6 is equipped with the positioning convex platform being embedded in the positioning groove with one end that valve plate is located by connecting
61, it further include cylinder head 7, the cylinder head 7 is equipped with the compression being pressed on the positioning convex platform 61 in the positioning groove
Block 71.For compressing elastic element 6, simple and reliable process.
Moreover, the cylinder head 7 is equipped with the positive stop lug boss 72 that can limit 6 maximum lift of elastic element, as excellent
Choosing, maximum lift≤1mm.Avoid elastic strength controller lift excessive, pressure release needle-valve can not playback.
Certainly, the invention is not limited to above embodiment, and those skilled in the art are without prejudice to originally
Equivalent deformation or replacement can be also made under the premise of spirit, these equivalent variation or replacement are all contained in the application right
It is required that in limited range.
Claims (8)
1. a kind of pressure adaptive plate member, it is characterised in that：Including valve plate and valve block, opened up on the valve plate suction hole,
Gas vent and relief hole, the valve block include the suction valve chip being located on front side of valve plate and the exhaust valve plate being located on rear side of valve plate, institute
It states and is equipped with flexible air-breathing tongue piece on suction valve chip in the front side of suction hole, suction valve chip avoids gas vent and relief hole；It is described
Exhaust valve plate is equipped with flexible exhaust tongue piece in the rear side of gas vent, and exhaust valve plate avoids air inlet and relief hole, the pressure release
Relief valve is equipped in hole, the relief hole is pre-small post-large bellmouth, and the relief valve is to be located at letting out in the bellmouth
Pressing valve, the pressure release needle-valve have the pre-small post-large conical surface that can cooperate with the bellmouth, and the valve plate is equipped with and can drive
The elastic element that dynamic pressure release needle-valve resets after pressure release.
2. pressure adaptive plate member according to claim 1, it is characterised in that：The relief hole is conical bore, institute
Stating pressure release needle-valve has the circular conical surface that can cooperate with the conical bore.
3. pressure adaptive plate member according to claim 2, it is characterised in that：The pressure release needle-valve is matched with conical bore
When merging completely enclosed relief hole, the rear end face of the pressure release needle-valve is concordant with the trailing flank of valve plate.
4. pressure adaptive plate member according to claim 3, it is characterised in that：The elastic element is located at the valve
On rear side of plate, one end of elastic element is extended at the rear end face of pressure release needle-valve.
5. pressure adaptive plate member according to claim 4, it is characterised in that：One end of the elastic element and valve
Plate is located by connecting, and the other end extends to the rear end face of pressure release needle-valve along valve plate surface.
6. pressure adaptive plate member according to claim 5, it is characterised in that：It is recessed that the valve plate is equipped with positioning
One end that slot, the elastic element and valve plate are located by connecting is equipped with the positioning convex platform being embedded in the positioning groove, further includes gas
Cylinder cap, the cylinder head are equipped with the compact heap being pressed on the positioning convex platform in the positioning groove.
7. pressure adaptive plate member according to claim 6, it is characterised in that：The cylinder head is equipped with and can limit
The positive stop lug boss of the elastic element maximum lift.
8. pressure adaptive plate member according to claim 1, it is characterised in that：Being equipped on rear side of the valve plate can limit
The exhaust valve limit plate of the exhaust tongue piece maximum lift.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710604763.0A CN107288852B (en) | 2017-07-24 | 2017-07-24 | A kind of pressure adaptive plate member |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710604763.0A CN107288852B (en) | 2017-07-24 | 2017-07-24 | A kind of pressure adaptive plate member |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107288852A CN107288852A (en) | 2017-10-24 |
| CN107288852B true CN107288852B (en) | 2018-11-27 |
Family
ID=60102706
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710604763.0A Active CN107288852B (en) | 2017-07-24 | 2017-07-24 | A kind of pressure adaptive plate member |
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| Country | Link |
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| CN (1) | CN107288852B (en) |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2077043U (en) * | 1990-07-27 | 1991-05-15 | 山东省郓城县拖拉机配件厂 | Miniature air compressor |
| JPH062667A (en) * | 1992-06-19 | 1994-01-11 | Tokico Ltd | Unload device for air compressor |
| DE102008005435A1 (en) * | 2008-01-22 | 2009-07-23 | Knorr-Bremse Systeme für Nutzfahrzeuge GmbH | Compressor with an energy-saving device and method for energy-saving operation of a compressor |
| CN102797665B (en) * | 2012-09-04 | 2015-12-09 | 宋晓玲 | A kind of self-unloading one-way valve type cylinder cap valve board assembly |
| CN203614351U (en) * | 2013-07-10 | 2014-05-28 | 佛山市广顺电器有限公司 | Under-pressure starting device of compressor |
-
2017
- 2017-07-24 CN CN201710604763.0A patent/CN107288852B/en active Active
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| Publication number | Publication date |
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| CN107288852A (en) | 2017-10-24 |
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