CN208330676U - A kind of piston compressor inlet valve - Google Patents
A kind of piston compressor inlet valve Download PDFInfo
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- CN208330676U CN208330676U CN201820799979.7U CN201820799979U CN208330676U CN 208330676 U CN208330676 U CN 208330676U CN 201820799979 U CN201820799979 U CN 201820799979U CN 208330676 U CN208330676 U CN 208330676U
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- valve
- valve rod
- spring
- valve body
- retaining ring
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Abstract
The utility model discloses a kind of piston compressor inlet valve, Compressor Technology fields.Including valve body, valve rod, air intake duct, elastic mechanism and position-limit mechanism；The valve stem sleeve is mounted in valve inner, and the air intake duct of stem bottom and valve inner seals, and it can be moved up and down by elastic mechanism with position-limit mechanism, the elastic mechanism is arranged between valve body and valve rod, and what the position-limit mechanism was arranged in any position of valve stem top or body top or both combination is adapted position.The inlet valve greatly improves volumetric efficiency by rationally designing, and improves Energy Efficiency Ratio, reduces noise and extends service life.
Description
Technical field
The present invention relates to Compressor Technology fields.
Background technique
Compressor is a kind of driven fluid machinery that low-pressure gas is promoted to high pressure gas.Inlet valve is compressor compresses
The gate of chamber, response speed, sealing effect and movement friction directly affect the gas production of compressor complete machine, power and make an uproar
Sound.Currently, the environmental consciousness of people is more and more stronger, to energy conservation, efficiently requires higher and higher, compressed compared with existing market upper piston
Machine is generally three-level efficiency, and there is the demand to high energy efficiency compressor in market.
Existing Reciprocting piston compressor inlet valve mostly uses the structure type such as Fig. 2, and suction valve chip is sheet, and material is
Steel.Piston downlink when compressor air suction, suction valve chip upper and lower faces generate pressure difference, after suction valve chip bending deformation with valve
Gap is formed between plate, air enters cylinder from this gap；Suction valve chip upper and lower faces pressure difference disappears when piston stroking upward compressed air
It loses, suction valve chip replys straightened condition, is close to valve plate and plays the role of seal compression gas.Suction valve chip is frequent when compressor is run
Folding, and valve plate is also steel, mutually collision thus generate noise.It is flat seal between suction valve chip and valve plate, leakproofness is poor
Leakage is big, compressor volume low efficiency.For the problem that inlet seal set forth above is poor, noise is big and air inlet gap, this
Invention proposes a kind of solution of suitable piston compressor.
Summary of the invention
Technical problem to be solved by the invention is to provide a kind of piston compressor inlet valve, the inlet valve valve rod bottom surfaces
Same plane is kept with valve body bottom surface, compressor piston infinite approach plane in compressive state can be made, clearance will be compressed
It minimizes, greatly improves volumetric efficiency, improve Energy Efficiency Ratio；It carries out air-breathing by pumping for valve rod and changes
Intake method, while also ensuring that the noise of inlet valve is small and the service life is long.
In order to solve the above technical problems, the technical solution used in the present invention is: a kind of piston compressor inlet valve, packet
Include valve body, valve rod, air intake duct, elastic mechanism and position-limit mechanism；The valve stem sleeve is mounted in valve inner, and stem bottom and valve body
Internal air intake duct sealing, and being moved up and down by elastic mechanism with position-limit mechanism, the elastic mechanism setting in valve body and
Between valve rod, the position-limit mechanism be arranged in any position of valve stem top or body top or both combination be adapted position
It sets.
The technical solution advanced optimized is that the valve rod is inverted T-type structure, and top is motion bar, and lower part is sealing block,
And the vertical height of valve rod is higher than the vertical height of valve body, the size of the sealing block is adapted with air intake duct, and the valve body is set
There is centre pilot compatible with valve rod hole.
The technical solution advanced optimized is that the air intake duct is the venthole that valve inner is arranged in, and the venthole is extremely
It is less one, the venthole bottom is intercommunicating pore, and is adapted with the sealing block size of stem bottom.
The technical solution advanced optimized is that the sealing block is hemisphere face or conical surface projection cube structure, the upper convex surface of sealing block
It matches with the inner surface of air intake duct, forms sealing；The lower plane of sealing block and the lower plane of valve body are in same plane.
The technical solution advanced optimized is that the elastic mechanism is made of the first spring, and first spring passes through limit
Mechanism is fixed between valve rod and valve body, is in compressive state or non-compressed state, and when its inlet valve being made to work, valve rod moves up and down
It can seal and open and close with air intake duct.
The technical solution advanced optimized is that the internal or external of first spring is additionally provided with second spring, described second
Spring is limit spring, and the elasticity modulus of second spring is greater than the first spring.
The technical solution advanced optimized is that the position-limit mechanism is mainly made of the first retaining ring, the first retaining ring setting
It is cooperatively connected at the top of valve rod, and with elastic mechanism.
The technical solution advanced optimized is that the position-limit mechanism is additionally provided with the second retaining ring, and second retaining ring is arranged in valve
At the top of body, for limiting elastic mechanism.
The technical solution advanced optimized be first spring the first retaining ring or the second retaining ring be set be adapted position
That sets or be arranged in simultaneously the first retaining ring or the second retaining ring is adapted position, and mutually fitting for the second retaining ring is arranged in the second spring
With position.
The technical solution advanced optimized is that the valve body uses metal material, and the valve rod uses nonmetallic polyether-ether-ketone
Material or nonmetallic polytetrafluoroethylene (PTFE) material or stainless steel material, the elastic mechanism and position-limit mechanism use metal material.
The beneficial effects of adopting the technical scheme are that the present invention change traditional compressor inlet valve into
Gas mode, it is big to solve the leakage of leakproofness difference present in traditional inlet valve, compressor volume low efficiency, and noise is big and air inlet
The problem of gap；By stem design at inverted T-type structure, and sealed bottom block is designed to hemisphere face or conical surface projection cube structure, guarantees
It matches with the inner surface of air intake duct, forms sealing, and be process using PEEK non-metallic material, make it at work,
The noise generated with valve body collision greatly reduces, to reduce the noise of compressor, the sealing block of valve rod and valve inner
The contact surface of air intake duct improves the leakproofness of the two contact surface, while the sealing block bottom of valve rod through overcure and bright and clean processing
Face and valve body bottom surface can make compressor piston infinite approach plane in compressive state, will compress in same level
Clearance minimizes, and greatly improves volumetric efficiency, improves Energy Efficiency Ratio.
Detailed description of the invention
Fig. 1 is inlet valve overall structure diagram of the present invention；
Fig. 2 is that current tradition uses inlet valve structural schematic diagram；
Fig. 3 is the partial enlarged view of Fig. 2；
Fig. 4 is status architecture schematic diagram when inlet valve of the present invention opens work；
Fig. 5 is the structural schematic diagram of the embodiment of the present invention 1；
Fig. 6 is the structural schematic diagram of the embodiment of the present invention 2；
1 compressor compresses chamber, 2 valve plates, 3 valve rods, 31 motion bars, 32 sealing blocks, 4 elastic mechanisms, 41 first springs, 42
Two springs, 5 position-limit mechanisms, 51 first retaining rings, 52 second retaining rings, 6 valve bodies, 7 air intake ducts, 71 ventholes, 72 intercommunicating pores, 8 cylinder bodies,
9 pistons, 10 suction valve chips, 11 compressor valve boards, 12 exhaust valve plates, 13 exhaust screens.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
As Figure 1 and Figure 4, the utility model discloses a kind of piston compressor inlet valve, including valve body 6, valve rod 3,
Air intake duct 7, elastic mechanism 4 and position-limit mechanism 5；The valve rod 3 is sleeved on inside valve body 6, and inside 3 bottom of valve rod and valve body 6
Air intake duct 7 seal, and can be moved up and down with position-limit mechanism 5 by elastic mechanism 4, the setting of elastic mechanism 4 in valve body 6 and
Between valve rod 3, what any position or both that 6 top of 3 top of valve rod or valve body is arranged in the position-limit mechanism 5 combined is adapted
Position.
The embodiment advanced optimized is that the valve rod 3 is inverted T-type structure, and top is motion bar 31, and lower part is sealing block
32, and the vertical height of valve rod 3 is higher than the vertical height of valve body 6, the size of the sealing block 32 is adapted with air intake duct 7, institute
Valve body 6 is stated equipped with centre pilot compatible with valve rod 3 hole, center pilot hole is for keeping 3 up and down direction of valve rod to move, limit
The freedom degree of 3 vertical direction of valve rod processed, the motion bar 31 is equipped at least one anti-card slot, when being used to prevent inlet valve long
Between work, the impurities accumulation in air and lead to 3 clamping stagnation of valve rod.
The embodiment advanced optimized is that the air intake duct 7 is the venthole 71 being arranged in inside valve body 6, the venthole
71 are at least one, and 71 bottom of venthole is intercommunicating pore 72, and the 32 size phase of sealing block of diameter and 3 bottom of valve rod
Adaptation.
It is hemisphere face or conical surface projection cube structure that the embodiment advanced optimized, which is the sealing block 32, sealing block 32 it is convex
Face matches with the inner surface of air intake duct 7, forms sealing；The lower plane of sealing block 32 and the lower plane of valve body 6 are in same plane.
The embodiment advanced optimized is that the elastic mechanism 4 is made of the first spring 41, and first spring 41 passes through
Position-limit mechanism 5 is fixed between valve rod 3 and valve body 6, is in compressive state or non-compressed state, when its inlet valve being made to work, valve rod 3
Moving up and down can seal and open and close with air intake duct 7.
The embodiment advanced optimized is that the internal or external of first spring 41 is additionally provided with second spring 42, described the
Two springs 42 are limit spring, and the elasticity modulus of second spring 42 is greater than the first spring 41.
The embodiment advanced optimized is that the position-limit mechanism 5 is mainly made of the first retaining ring 51, first retaining ring 51
The top of valve rod 3 is set, and is cooperatively connected with elastic mechanism 4.
The embodiment advanced optimized is that the position-limit mechanism 5 is additionally provided with the second retaining ring 52, and second retaining ring 52 is arranged
At 6 top of valve body, for limiting fixed elastic mechanism 4.
The embodiment advanced optimized is that mutually fitting for the first retaining ring 51 or the second retaining ring 52 is arranged in first spring 41
The first retaining ring 51 or the second retaining ring 52 are arranged in position or simultaneously is adapted position, and the second spring 42 is arranged second
Retaining ring 52 is adapted position.
The embodiment advanced optimized is that the valve body 6 uses metal material, and the valve rod 3 uses nonmetallic polyether-ether-ketone
Material or nonmetallic polytetrafluoroethylene (PTFE) material or stainless steel material, the elastic mechanism 4 and position-limit mechanism 5 use metal material.
As shown in figure 4, inlet valve is open state.Compressor air suction when piston downlink, in the upper and lower of valve rod cone part
Two sides generates pressure difference, and valve rod, which moves down, makes first conical surface and second conical surface gap occur, and thus gap enters compressor to air
In compression chamber；Piston stroking upward air is compressed after compressor air suction, and valve rod is multiple under elastic mechanism and gas pressure effect
Position, at this moment first conical surface and the fitting of second conical surface, play the role of seal compression gas.
In conclusion the inlet valve repeats to open and close movement in compressor operating state.Air-breathing when compressor is run
Although valve frequently opens and closes, because valve rod is small in size, material is nonmetallic polyether-ether-ketone, and light weight inertia is small, collides and produces with valve seat
Raw noise is greatly reduced, to reduce the noise of compressor complete machine.The sealing surface of valve body and valve rod is hardening and bright and clean place
It manages, the good airproof performance leakage between sealing surface is small；It closes rear valve body and valve rod lower plane is in same level, so compressor
Volumetric efficiency is high.
Embodiment 1
As shown in figure 5, the embodiment is this programme most preferred embodiment, mainly by valve rod, the first spring, second spring, the
One retaining ring, valve body and the second retaining ring composition.Its valve rod uses nonmetallic polyether-ether-ketone, and intensity, toughness and fatigue durability are protected
Demonstrate,proved the opening and closing of inlet valve noise is small and long service life.It assembles with valve body central communication hole and is tightly connected, and carries out up and down
It moves back and forth.The sealing convex surface of itself and valve body cooperation, has carried out bright and clean processing, and roughness reaches Ra0.4, ensure that excellent sealing
Performance.
Elastic mechanism is made of the first spring and second spring, is all made of stainless steel material and is made, the first spring dress
Compressive state is in after matching；The elasticity modulus of second spring is greater than the first spring, and at air-breathing valve closing state second spring
In the state of not stressing；When inlet valve fully open state, second spring is in micro- compressive state.First retaining ring is fixed on valve rod
Top is equipped with the first spring below, and the second retaining ring is fixed on body top, is fixed on valve plate for auxiliary valve body.
Valve body material is copper alloy, is Multiple-Aperture Device, intercommunicating pore and carries out bright and clean processing with valve rod cooperation sealing cone.
Its venthole in the case of inlet valve fully opens, guarantees that ventilatory capacity is at pressure difference 0.02Mpa in this implementation case column
0.4m³/min.When inlet valve completely closed state or its sealing surface of seat of compressor off position and valve stem seal face are complete
Fitting, valve seat lower plane and valve rod lower plane are in same plane.
The embodiment makes compressor in the case where air-breathing starts and be vented two states of end, and piston can be inhaled with infinite approach
Air valve lower plane makes to compress clearance close to 0, greatly improves volumetric efficiency, improve Energy Efficiency Ratio.The inlet valve is good past
Multiple movenent performance and minimum air suction and noise play the function of energy-saving and noise-reducing in practical applications.
Embodiment 2
As shown in fig. 6, the present embodiment is mainly made of valve plate, valve rod, elastic mechanism (spring), position-limit mechanism (retaining ring).
Valve plate is connected with valve rod assembly, and centre has spring auxiliary valve rod to move up and down, and retaining ring is fixed on valve rod.
Valve plate material is steel, and the pedestal of inlet valve is the upper valve plate of compressor compresses chamber simultaneously, certain thickness to have
Porous flat plate, lower planes and the sealing surface cooperated with valve rod and mesoporous do bright and clean processing, guarantee leakproofness and reduce to move to rub
It wipes.The sealing surface of the valve plate and valve rod is at spherical surface, uniform force, good airproof performance.
Valve rod material is 06Cr19Ni10 stainless steel, and valve stem seal face is spherical surface, is cooperated by spring and valve plate centre bore, valve
Bar moves up and down.
Spring materials are stainless steel, and valve plate is fixed on spring top, and the fixed valve rod in lower part plays the role of tension spring.
Retaining ring material is stainless steel, is fixed on valve rod, when being inlet valve fully open state, the limit of valve rod.
Above-described embodiment improves 20~30% by implementing verifying, the relatively conventional inlet valve compressor of efficiency, energy conservation 30%
More than, according to " GB19153-2009 positive displacement compressor energy efficiency market and efficiency grade ", Energy Efficiency Ratio has reached level-one efficiency
Standard.Piston compressor volumetric efficiency reaches 89.5%, and lower noise has arrived 70dB.
Claims (10)
1. a kind of piston compressor inlet valve, it is characterised in that: including valve body (6), valve rod (3), air intake duct (7), elastic machine
Structure (4) and position-limit mechanism (5)；The valve rod (3) is sleeved on valve body (6) inside, and valve rod (3) bottom and valve body (6) inside
Air intake duct (7) sealing, and can be moved up and down by elastic mechanism (4) with position-limit mechanism (5), elastic mechanism (4) setting exists
Between valve body (6) and valve rod (3), any position of position-limit mechanism (5) setting at the top of valve rod (3) or at the top of valve body (6)
Or both combine be adapted position.
2. a kind of piston compressor inlet valve according to claim 1, it is characterised in that: the valve rod (3) is inverted T shaped
Structure, top are motion bar (31), and lower part is sealing block (32), and the vertical height of valve rod (3) is higher than the vertical height of valve body (6)
Degree, the size of the sealing block (32) are adapted with air intake duct (7), and the valve body (6) is equipped with valve rod (3) compatible center
Pilot hole.
3. a kind of piston compressor inlet valve according to claim 1, it is characterised in that: the air intake duct (7) is to set
The venthole (71) internal in valve body (6) is set, the venthole (71) is at least one, and venthole (71) bottom is connection
Hole (72), and be adapted with sealing block (32) size of valve rod (3) bottom.
4. a kind of piston compressor inlet valve according to claim 2 or 3, it is characterised in that: the sealing block (32)
Upper convex surface for hemisphere face or conical surface projection cube structure, sealing block (32) matches with the inner surface of air intake duct (7), forms sealing；
The lower plane of sealing block (32) and the lower plane of valve body (6) are in same plane.
5. a kind of piston compressor inlet valve according to claim 1, it is characterised in that: the elastic mechanism (4) by
First spring (41) composition, first spring (41) are fixed between valve rod (3) and valve body (6) by position-limit mechanism (5), are made
When its inlet valve works, valve rod (3), which moves up and down, to be sealed and open and close with air intake duct (7).
6. a kind of piston compressor inlet valve according to claim 5, it is characterised in that: first spring (41)
Internal or external to be additionally provided with second spring (42), the second spring (42) is limit spring, and the elasticity of second spring (42)
Modulus is greater than the first spring (41).
7. a kind of piston compressor inlet valve according to claim 1, it is characterised in that: the position-limit mechanism (5) is main
It to be made of the first retaining ring (51), first retaining ring (51) is arranged at the top of valve rod (3), and cooperates with elastic mechanism (4)
Connection.
8. a kind of piston compressor inlet valve according to claim 7, it is characterised in that: the position-limit mechanism (5) is also
Equipped with the second retaining ring (52), the second retaining ring (52) setting is at the top of valve body (6), for limiting elastic mechanism (4).
9. a kind of piston compressor inlet valve according to claim 6, it is characterised in that: first spring (41) sets
Set being adapted position or the first retaining ring (51) or the second retaining ring are set simultaneously in the first retaining ring (51) or the second retaining ring (52)
(52) be adapted position, the second spring (42), which is arranged, is adapted position in the second retaining ring (52).
10. a kind of piston compressor inlet valve according to claim 1, it is characterised in that: the valve body (6) is using gold
Belong to material, the valve rod (3) is using nonmetallic polyether-ether-ketone material or nonmetallic polytetrafluoroethylene (PTFE) material or stainless steel material, institute
Elastic mechanism (4) and position-limit mechanism (5) are stated using metal material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820799979.7U CN208330676U (en) | 2018-05-28 | 2018-05-28 | A kind of piston compressor inlet valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820799979.7U CN208330676U (en) | 2018-05-28 | 2018-05-28 | A kind of piston compressor inlet valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208330676U true CN208330676U (en) | 2019-01-04 |
Family
ID=64775654
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820799979.7U Expired - Fee Related CN208330676U (en) | 2018-05-28 | 2018-05-28 | A kind of piston compressor inlet valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208330676U (en) |
-
2018
- 2018-05-28 CN CN201820799979.7U patent/CN208330676U/en not_active Expired - Fee Related
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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: 20200514 Address after: 065000 south side of Langfang Taishun Power Equipment Co., Ltd., west side of Taishan Road, Bazhou economic and Technological Development Zone, Langfang City, Hebei Province Patentee after: Hebei Huaben Machinery Co.,Ltd. Address before: 050000 No. 266 Tianshan Avenue, hi tech Zone, Hebei, Shijiazhuang Patentee before: HEBEI CHENGFENG TECHNOLOGY Co.,Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190104 |