CN107917079B - A kind of screw air compressor intake valve - Google Patents
A kind of screw air compressor intake valve Download PDFInfo
- Publication number
- CN107917079B CN107917079B CN201711121967.5A CN201711121967A CN107917079B CN 107917079 B CN107917079 B CN 107917079B CN 201711121967 A CN201711121967 A CN 201711121967A CN 107917079 B CN107917079 B CN 107917079B
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- CN
- China
- Prior art keywords
- spool
- chamber
- piston
- gas flow
- intake valve
- 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.)
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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
- F04C28/00—Control of, monitoring of, or safety arrangements for, pumps or pumping installations specially adapted for elastic fluids
- F04C28/24—Control of, monitoring of, or safety arrangements for, pumps or pumping installations specially adapted for elastic fluids characterised by using valves controlling pressure or flow rate, e.g. discharge valves or unloading valves
-
- 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
- F04C29/06—Silencing
-
- 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
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Applications Or Details Of Rotary Compressors (AREA)
Abstract
The invention discloses a kind of screw air compressor intake valves, including valve body, bonnet, piston cylinder, piston component and core assembly, the bonnet, is mounted on the valve body by bolt, the piston component is mounted in the piston cylinder, the bonnet, which is equipped with, supplies the movable spool chamber of the core assembly, the side wall of the spool chamber is equipped with air inlet, the top of the spool chamber is equipped with the bleeder port for being used to be vented, the lower section of the spool chamber is equipped with sub-air chamber, the bottom of the sub-air chamber is equipped with the gas flow communicated therewith, the diameter of the gas flow is from top to bottom gradually increased, the one end of the gas flow far from the sub-air chamber is detachably equipped with decompression wheel.The present invention can prevent the frequent impact of core assembly and bonnet, from damaging by core assembly and spool chamber similar to the cooperation air inlet of piston, can be effectively reduced by gas flow and decompression wheel into the gas pressure inside intake valve.
Description
Technical field
The present invention relates to air compressor machine component technology fields, and in particular to a kind of screw air compressor intake valve.
Background technique
Air compressor machine is a kind of a kind of device of pressure energy for converting motor volume mechanical energy to gas, it is gas source work
In main body, wherein screw air compressor (abbreviation screw air compressor) have stable drive, compression efficiency it is high, it is with small vibration,
The advantages that noise is small, therefore it is widely used in the various fields in production and living.
The core component that intake valve is adjusted as the tolerance of screw air compressor, it is outstanding in its auxiliary equipment in screw air compressor
For key, quality directly affects the overall performance of screw air compressor, and in the occasion of certain rarefactions of air, air compressor machine would generally
It is inadequate that there is a situation where air inflows, at this time extraneous will provide the gas with certain pressure to guarantee the continuity of air inlet,
But these gases are unevenly distributed inside air compressor machine due to will cause with certain pressure after entering intake valve
Situation can generate biggish noise to reduce the efficiency of air compressor machine compressed air；Traditional air compressor gas valve is usual
It was mandril spool and was constantly bonded and separates the open/close states for controlling intake valve between bonnet, in this process mandril
Spool is constantly hit with caged valve lid, is easy to cause the damage of spool thus to cause the mistake of entire intake valve
Effect.
Summary of the invention
The problem to be solved in the present invention is: providing one kind and can adjust air pressure, continuous uniform air inlet and spool and is hardly damaged
Screw air compressor intake valve.
The present invention in order to solve the above problem provided by technical solution are as follows: a kind of screw air compressor intake valve, including valve body,
Bonnet, piston cylinder, piston component and core assembly, the bonnet, are mounted on the valve body by bolt, the piston
Component is mounted in the piston cylinder, and the piston cylinder bottom is equipped with the inlet channel communicated with the outside world, is set on the bonnet,
Have for the movable spool chamber of the core assembly, the side wall of the spool chamber is equipped with air inlet, sets at the top of the spool chamber
There is a bleeder port for being vented, the lower section of the spool chamber is equipped with sub-air chamber, and the bottom of the sub-air chamber, which is equipped with, to be communicated therewith
The diameter of gas flow, the gas flow is from top to bottom gradually increased, the one end of the gas flow far from the sub-air chamber
Decompression wheel is detachably installed and is communicated with collection chamber, decompression wheel includes wheel shaft and several to be evenly distributed on the wheel shaft round
Wheel piece on week, the wheel on piece are equipped with several equally distributed through-holes, and the piston cylinder is located at the upper end of the collection chamber, institute
The bottom for stating collection chamber is equipped with several equally distributed ventholes for outlet.
Preferably, the core assembly includes spool, spring and the first sealing ring being mounted on the spool, the valve
The shape of core and the hair spool chamber is adapted, and the spring one end is fixed on the upper surface of the spool, the other end and spool
It is connected at the top of chamber.The open and close that intake valve is realized by cooperation activity between spool and spool chamber, can be effective
Raising spool service life.
Preferably, the piston component includes piston compatible with the piston cylinder shape, is mounted on the piston
The second sealing ring, piston rod and buffer spring, the piston rod is that stepped stem and the one end being relatively large in diameter and the piston are solid
Fixed connection, the lesser one end of diameter are equipped with spring and are connected with the spool.
Preferably, guide sleeve is equipped at the top of the piston cylinder, the piston rod runs through the guide sleeve.The guide sleeve can
Axially position is carried out to piston rod well.
Preferably, the deflector tilted down is additionally provided with inside the gas flow, the air deflecting system tilts down
One end be directed toward decompression wheel and be connected by relief spring with the inner wall of the gas flow.
Preferably, the bottom of the valve body is equipped with several mounting holes.Mounting hole, which can facilitate, is fixed on pneumatics for intake valve
On machine.
Compared with prior art, the invention has the advantages that
1) pressure of gas can be gradually reduced using the gas flow that diameter is gradually increased, and can be good at reducing
The noise that gas generates in intake valve.
2) being mounted on the decompression wheel inside gas flow further can effectively reduce the pressure of gas, while pass through it
Rotation enables to the gas entered inside air compressor machine more uniform.
3) air inlet is realized in the cooperation activity by using piston similar between spool and spool chamber inside gas flow
The open and close of valve can effectively avoid the shock of spool and bonnet, in this way, increase the service life of spool.
Detailed description of the invention
The drawings described herein are used to provide a further understanding of the present invention, constitutes a part of the invention, this hair
Bright illustrative embodiments and their description are used to explain the present invention, and are not constituted improper limitations of the present invention.
Overall schematic when Fig. 1 is a kind of unloading of screw air compressor intake valve of the present invention；
Fig. 2 is a kind of top view of the decompression wheel of screw air compressor intake valve of the present invention；
Fig. 3 is a kind of partial enlarged view of screw air compressor intake valve of the present invention；
Fig. 4 is overall schematic when a kind of screw air compressor intake valve of the present invention loads air inlet；
Attached drawing mark: 1, valve body, 2, bolt, 3, bonnet, 4, bleeder port, 5, spool chamber, 6, spring, 7, air inlet, 8,
Piston rod, 9, guide sleeve, 10, piston, the 11, second sealing ring, 12, deflector, 13, relief spring, 14, mounting hole, 15, gas collection
Room, 16, venthole, 17, decompression wheel, 18, gas flow, 19, control port, 20, sub-air chamber, 21, piston cylinder, 22, spool,
23, the first sealing ring, 24, buffer spring, 25, wheel shaft, 26, wheel piece, 27, through-hole.
Specific embodiment
Carry out the embodiment that the present invention will be described in detail below in conjunction with accompanying drawings and embodiments, how the present invention is applied whereby
Technological means solves technical problem and reaches the realization process of technical effect to fully understand and implement.
Specific embodiments of the present invention are as shown in Figures 1 to 4: a kind of screw air compressor intake valve, including valve body 1, upper valve
Lid 3, piston cylinder 21, piston component and core assembly, bonnet, 3 are mounted on valve body 1 by bolt 2, and piston component is mounted on
In piston cylinder 21, piston component can move up and down in the inside of piston cylinder 21, be provided with a control gas in the bottom of piston cylinder 21
Mouth 19, the external control gas source of control port 19 control piston component in piston cylinder with dying by the ventilation of external gas source
21 internal activities are equipped on bonnet, 3 and are used to give core assembly movable spool chamber 5, are equipped on the side wall of spool chamber 5
For the air inlet 7 of air inlet, the top of spool chamber 5 is equipped with bleeder port 4, when core assembly is pressed upwards in spool chamber 5,
The gas in spool chamber 5 can be discharged to reduce the resistance of core assembly by the bleeder port 4, be conducive to core assembly and exist
Activity in spool chamber 5 realizes intake valve by the activity of core assembly similar piston 10 and piston cylinder 21 in spool chamber 5
Air inlet and closing, can be avoided the shock of spool 22 Yu bonnet, 3, it is therefore prevented that the damage of spool 22.
A sub-air chamber 20, the sky that can will come in from air inlet 7 by the sub-air chamber 20 are equipped in the lower section of spool chamber 5
Gas collects the gas flow 18 subsequently into the lower section of sub-air chamber 20, and the diameter of the gas flow 18 is by gradually increasing under upper
Greatly, gas achievees the purpose that decompression when entering 18 inside of gas flow as the increase pressure of flow diameter gradually decreases,
And gas flow 18 enables to the mobile phase of the gas inside intake valve more more unobstructed than traditional air compressor machine, also just subtracts
Lacked the noise that gas generates inside pressure reducing valve, meanwhile, the one end of gas flow 18 far from sub-air chamber 20 by bolt or
Person is that screw etc. is equipped with decompression wheel and 17 and is connected with collection chamber 15, the decompression wheel 17 include wheel shaft 25 and it is several uniformly point
Wheel piece 26 of the cloth on wheel shaft circumference is also provided with several equally distributed through-holes 27 on wheel piece 26, when gas is in gas flow
It will drive 17 rotation of decompression wheel when 18 internal flow, the kinetic energy of gas has translated into the kinetic energy of decompression wheel 17, gas
Flow velocity is slack-off, and pressure is reduced by, and taking turns the through-hole 17 on piece 26 can allow gas more smooth by decompression wheel 17, and pass through
Gas can be taken to the centre of collection chamber 15 so that the gas inside collection chamber 15 is more uniform by the movement of wheel piece 26.
Core assembly includes spool 22, spring 6 and the first sealing ring 23 being mounted on spool 22, first sealing ring 23
The leakproofness between spool 22 and spool chamber 5 can be increased, the shape of the spool 22 and hair spool chamber 5 is adapted, 6 one end of spring
It is fixed on the upper surface of spool 22, the other end is connected with the top of spool chamber 5, when extraneous control gas source is closed,
Spool 22 can be pressed downward realizing the automatic-sealed to intake valve by spring 6.
Piston component includes piston 10 compatible with 21 shape of piston cylinder, the second sealing ring being mounted on piston 10
11, piston rod 8 and buffer spring 24, piston rod 8 is stepped stem and one end for being relatively large in diameter is fixedly connected with institute piston 10, diameter
Lesser one end is equipped with buffer spring 24 and is connected with spool, and buffer spring 24 can be applied to spool 22 to piston rod 8
Power is effectively buffered.
Specific work process of the invention: control gas source is ventilated by controller mouth 19 into piston cylinder 21, and piston 10 exists
It is moved upwards under the action of the gas, piston rod 8 also moves upwards therewith, to transport upwards in spool chamber 5 with movable valve plug 22
Dynamic, after position of the spool 22 in spool chamber 5 is higher than air inlet 7, intake valve begins to air inlet, and gas passes through sub-air chamber 20
Into gas flow 18, the pressure reduction of gas after the buffering of runner and the decompression of decompression wheel 17 is passed through in gas flow 18
And even into collection chamber 15 inside, then entered inside air compressor machine and pressed by 27 hole of through-hole of 15 bottom of collection chamber
Contracting.
The beneficial effects of the present invention are: the gas flow being gradually increased using diameter can gradually reduce the pressure of gas,
And it can be good at reducing the noise that gas generates in intake valve, the decompression wheel being mounted on inside gas flow can be into one
The effective pressure for reducing gas of step, while enabling to the gas into inside air compressor machine more uniform by its rotation,
The cooperation activity by using piston similar between spool and spool chamber inside gas flow come realize the unlatching of intake valve with
It closes, can effectively avoid the shock of spool and bonnet, in this way, increase the service life of spool.
Only highly preferred embodiment of the present invention is described above, but is not to be construed as limiting the scope of the invention.This
Invention is not only limited to above embodiments, and specific structure is allowed to vary.All protections in independent claims of the invention
Made various change is within the scope of the invention in range.
Claims (6)
1. a kind of screw air compressor intake valve, including valve body (1), bonnet, (3), piston cylinder (21), piston component and spool group
Part, the bonnet, (3) are mounted on the valve body (1) by bolt (2), and the piston component is mounted on the piston cylinder
(21) in, piston cylinder (21) bottom is equipped with control port (19), it is characterised in that: the bonnet, (3) is equipped with for institute
The movable spool chamber of core assembly (5) is stated, the side wall of the spool chamber (5) is equipped with air inlet (7), the spool chamber (5)
Top is equipped with the bleeder port (4) for being used to be vented, and the lower section of the spool chamber (5) is equipped with sub-air chamber (20), the sub-air chamber (20)
Bottom be equipped with the gas flow (18) that communicates therewith, the diameter of the gas flow (18) is from top to bottom gradually increased, described
Gas flow (18) is detachably equipped with decompression wheel (17) far from the one end of the sub-air chamber (20) and communicates with collection chamber (15),
The decompression wheel (17) includes wheel shaft (25) and several wheel pieces (26) being evenly distributed on the wheel shaft (25) circumference, the wheel
Piece (26) is equipped with several equally distributed through-holes (27), and the piston cylinder (21) is located at the upper surface of the collection chamber (15),
The bottom of the collection chamber (15) is equipped with several equally distributed ventholes (16) for outlet.
2. a kind of screw air compressor intake valve according to claim 1, it is characterised in that: the core assembly includes spool
(22), spring (6) and the first sealing ring (23) being mounted on the spool (22), the spool (22) and the spool chamber
(5) shape is adapted, and described spring (6) one end is fixed on the upper surface of the spool (22), the other end and spool chamber (5)
Top is connected.
3. a kind of screw air compressor intake valve according to claim 2, it is characterised in that: the piston component includes and institute
State the compatible piston (10) of piston cylinder (21) shape, the second sealing ring (11), the piston rod being mounted on the piston (10)
(8) and buffer spring (24), the piston rod (8) are stepped stem and the one end being relatively large in diameter and the fixed company of the piston (10)
It connects, the lesser one end of diameter is equipped with buffer spring (24) and is connected with the spool (22).
4. a kind of screw air compressor intake valve according to claim 3, it is characterised in that: set at the top of the piston cylinder (21)
Have guide sleeve (9), the piston rod (8) runs through the guide sleeve (9).
5. a kind of screw air compressor intake valve according to claim 1, it is characterised in that: the gas flow (18) is internal
It is additionally provided with the deflector (12) tilted down, one end that the deflector (12) tilts down is directed toward the decompression wheel (17) and is led to
Relief spring (13) is crossed to be connected with the inner wall of the gas flow (18).
6. a kind of screw air compressor intake valve according to claim 1, it is characterised in that: the bottom of the valve body (1) is set
There are several mounting holes (14).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711121967.5A CN107917079B (en) | 2017-11-14 | 2017-11-14 | A kind of screw air compressor intake valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711121967.5A CN107917079B (en) | 2017-11-14 | 2017-11-14 | A kind of screw air compressor intake valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107917079A CN107917079A (en) | 2018-04-17 |
| CN107917079B true CN107917079B (en) | 2019-07-09 |
Family
ID=61896257
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711121967.5A Active CN107917079B (en) | 2017-11-14 | 2017-11-14 | A kind of screw air compressor intake valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107917079B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108591044A (en) * | 2018-07-17 | 2018-09-28 | 浙江绿美泵业有限公司 | Testing water pump platform |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AT378409B (en) * | 1982-05-04 | 1985-08-12 | Hoerbiger Ventilwerke Ag | PISTON COMPRESSOR |
| US5785081A (en) * | 1997-08-12 | 1998-07-28 | Westinghouse Air Brake Company | Compressor inlet valve |
| CN201507452U (en) * | 2009-10-16 | 2010-06-16 | 南京压缩机股份有限公司 | Inlet control valve of combined oil-free screw compressor |
| CN202250869U (en) * | 2011-09-08 | 2012-05-30 | 上海维尔泰克螺杆机械有限公司 | Gas circuit control system of screw compressor |
| CN103089583B (en) * | 2012-12-31 | 2016-02-24 | 南京尚爱机械制造有限公司 | For the Aspirating valves of type reciprocating-piston air compressor |
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2017
- 2017-11-14 CN CN201711121967.5A patent/CN107917079B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN107917079A (en) | 2018-04-17 |
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Effective date of registration: 20230111 Address after: 337000 area a, Lianhua Industrial Park, Pingxiang City, Jiangxi Province Patentee after: Jiangxi Yingsai Compressor Co.,Ltd. Address before: 337000 Industrial Park B, Lianhua County, Pingxiang City, Jiangxi Province Patentee before: JIANGXI FENGSHI COMPRESSOR CO.,LTD. |
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| TR01 | Transfer of patent right |