CN103089583B - For the Aspirating valves of type reciprocating-piston air compressor - Google Patents
For the Aspirating valves of type reciprocating-piston air compressor Download PDFInfo
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- CN103089583B CN103089583B CN201310065572.3A CN201310065572A CN103089583B CN 103089583 B CN103089583 B CN 103089583B CN 201310065572 A CN201310065572 A CN 201310065572A CN 103089583 B CN103089583 B CN 103089583B
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Abstract
For an Aspirating valves for type reciprocating-piston air compressor, comprise valve body, intake duct and air outlet channel, intake duct and air outlet channel lay respectively at the two ends, left and right of valve body; Have valve pocket in described valve body, the suction port of valve pocket is positioned at the top of valve pocket, and the air outlet of valve pocket is communicated with air outlet channel; Described valve body lower portion is connected with cylinder, and the piston rod of cylinder stretches in valve pocket through the through hole offered bottom valve pocket from bottom to top, and through hole bottom the outer wall of piston rod and valve pocket is closely connected; Be connected with flap on piston rod top, flap controllably covers on the suction port of valve pocket; Described body top is connected with valve gap, and valve gap and body top form closed cavity, described flap in this cavity, described intake duct and this cavity connects; The gas source interface of described cylinder connects external air source by solenoid valve.The big orifice gas control Aspirating valves that the present invention proposes and control mode thereof, its failure rate is low, flow area is large, and inhalation resistance is low, and cost is low.
Description
Technical field
The technical program belongs to air compressor parts, specifically a kind of Aspirating valves for type reciprocating-piston air compressor.
Background technique
The Aspirating valves of type reciprocating-piston air compressor is the vitals that air compressor automatic safe runs.For the air compressor of installed power >=22kw, when motor start-up, if upper gas is too fast, the rotating speed of motor is not yet stable just enters heavy load, and can cause what is called " vexed car ", damage even burns out motor.Therefore, must light-load starting.A kind of method of conventional light-load starting is after motor start-up starts in the several seconds, closes Aspirating valves (being actually micro inspiration), makes gas on compressor slow.At this moment compressor power consumption mainly overcomes surface friction drag acting, is called light-load starting.When start-up course terminates, motor has been converted to △ shape and has connected, and rotating speed is stable, and Aspirating valves opens air-breathing automatically, and compressor enters heavy service.When compressor shutdown (or standby off-load), Aspirating valves cuts out automatically.At this moment, electromagnetism exhaust (blowdown) valve of final compressor, opens the several seconds, the pressurized air be detained in compressor of dropping a hint automatically, when guaranteeing compressor startup next time (or recovering heavy service), is light running within the several seconds.In said process, the effect of Aspirating valves and the matching coordinative of control system very important.
Traditional Aspirating valves often adopts pipe electromagnetic diaphragm valve, in use finds, its rate of fault is high: electromagnetic coil is easily overheated to be blown, diaphragm easily breaks, the screw easy-rupturing of spool outer end comes off.In addition, due to by solenoid valve mandrel to the less restriction of amount of movement, the distance that diaphragm is opened is very little, and cause flow area little, inhalation resistance is large.The diaphragm valve that latus rectum is larger to be selected for this reason.The diaphragm valve epithelium enlarged diameter of big orifice, foregoing rate of fault is higher, and market can't buy.
Summary of the invention
In order to solve the above-mentioned problems in the prior art, the technical program proposes a kind of Aspirating valves for type reciprocating-piston air compressor, and concrete technological scheme is as follows:
For an Aspirating valves for type reciprocating-piston air compressor, comprise valve body, intake duct and air outlet channel, intake duct and air outlet channel lay respectively at the two ends, left and right of valve body; Have valve pocket in described valve body, the suction port of valve pocket is positioned at the top of valve pocket, and the air outlet of valve pocket is communicated with air outlet channel; Described valve body lower portion is connected with cylinder, and the piston rod of cylinder stretches in valve pocket through the through hole offered bottom valve pocket from bottom to top, and through hole bottom the outer wall of piston rod and valve pocket is closely connected; Be connected with flap on piston rod top, flap controllably covers on the suction port of valve pocket; Described body top is connected with valve gap, and valve gap and body top form closed cavity, described flap in this cavity, described intake duct and this cavity connects; The gas source interface of described cylinder connects external air source by solenoid valve.
Described flap has through hole, and through hole is communicated with end face and the bottom surface of flap.
The wall being positioned at below its piston of described cylinder has pore, above piston and between cylinder top, is connected with elastomer.
Pore on described cylinder is the gas source interface of cylinder; Described solenoid valve is two-bit triplet solenoid valve.
In the air intake passage of Aspirating valves, arrange valve through hole (i.e. the suction port of valve pocket), nose end arranges flap, and its effect is closed or opens air intake passage.Valve opening and air valve passage can be closed or open to flap and piston moving axially in cylinder.
The control mode of redundancy
Closedown Aspirating valves Time Delay Opening air intake passage of short duration when 1, starting, open final stage bleeder valve, time-delay closing guarantees light-load starting simultaneously.
Final stage bleeder valve is opened, the residual air time-delay closing of dropping a hint rapidly in Compressor Pipes when 2, shutting down, inner without being detained pressurized air when guaranteeing again to start.
The big orifice gas control Aspirating valves that the present invention proposes and control mode thereof, its failure rate is low, flow area is large, and inhalation resistance is low, and cost is low.
Accompanying drawing explanation
Fig. 1 is the structural representation of the technical program;
In figure, valve gap (1), intake duct (2), piston (3) flap (4), piston rod (5), spring (6), piston (7), two-bit triplet solenoid valve (8).
Embodiment
For an Aspirating valves for type reciprocating-piston air compressor, comprise valve body, intake duct and air outlet channel, intake duct and air outlet channel lay respectively at the two ends, left and right of valve body; Have valve pocket in described valve body, the suction port of valve pocket is positioned at the top of valve pocket, and the air outlet of valve pocket is communicated with air outlet channel; Described valve body lower portion is connected with cylinder, and the piston rod of cylinder stretches in valve pocket through the through hole offered bottom valve pocket from bottom to top, and through hole bottom the outer wall of piston rod and valve pocket is closely connected; Be connected with flap on piston rod top, flap controllably covers on the suction port of valve pocket; Described body top is connected with valve gap, and valve gap and body top form closed cavity, described flap in this cavity, described intake duct and this cavity connects; The gas source interface of described cylinder connects external air source by solenoid valve.
Described flap has through hole, and through hole is communicated with end face and the bottom surface of flap.
The wall being positioned at below its piston of described cylinder has pore, above piston and between cylinder top, is connected with elastomer.
Pore on described cylinder is the gas source interface of cylinder; Described solenoid valve is two-bit triplet solenoid valve.
The technical program is further illustrated as follows below in conjunction with accompanying drawing and embodiment:
The basic structure of this Aspirating valves and working principle
Basic structure (referring to accompanying drawing 1)
This Aspirating valves is made up of 7 basic parts, the normal close type Aspirating valves controlled with a general two-bit triplet solenoid valve.Electric control system controls two-bit triplet solenoid valve delay power when starting shooting of compressor, power-off during shutdown (or standby off-load).The control source of the gas of solenoid valve takes from the inter-stage output of compressor.The air intake passage of Aspirating valves arranges a hole, and aperture end face arranges an air flap by piston actuated.Piston is driven by air pressure, spring reset, is connected by flap by piston rod with piston.
The working principle of the technical program is as follows:
When two-bit triplet solenoid valve is under power failure state, the pressurized air of piston cavity of resorption is released through a → c of two-bit triplet solenoid valve, and spring is about to air intake passage and is closed under promoting piston driving flap.When two-bit triplet solenoid valves state, control air-flow enters piston cavity of resorption through b → a, promote piston driving flap up, open air intake passage.Aperture on flap (4), still has micro inspiration when air intake passage is closed.This has the effect of two aspects: be conducive to the reduced pressure reducing compressor piston top, reduces on lubricant oil and alters; Be conducive to setting up inter-stage pressure minimum, once two-bit triplet solenoid valve obtain electric after, promote piston, flap and overcome spring force and air aspiration cavity negative pressure is up opens air intake passage.
The automatical control system of compressor; except when the two-bit triplet solenoid valve guaranteeing to control Aspirating valves is started shooting, time delay (adjustable) obtains electric; during shutdown (or standby unloading) outside power-off; also must guarantee final compressor electromagnetism venting (blowdown) valve (normal close type: power-off is closed; energising release) start time energising exhaust delay cut-off close, during shutdown energising exhaust delay cut-off close.The control of this redundancy ensure that air compressor does not have the pressurized air be detained in machine pipes when starting.
When air compressor discharge capacity is larger, machine pipes internal volume is comparatively large, and final stage solenoid blowout valve latus rectum is little, and excretion emptying time is long.If started immediately after shutting down suddenly, vexed car can be caused to burn motor accident.Therefore solenoid valve should be adopted to make the air controlled drain valve of the big orifice of guide.
Claims (4)
1. the Aspirating valves for type reciprocating-piston air compressor, comprise valve body, intake duct and air outlet channel, intake duct and air outlet channel lay respectively at the two ends, left and right of valve body, it is characterized in that having valve pocket in described valve body, the suction port of valve pocket is positioned at the top of valve pocket, and the air outlet of valve pocket is communicated with air outlet channel;
Described valve body lower portion is connected with cylinder, and the piston rod of cylinder stretches in valve pocket through the through hole offered bottom valve pocket from bottom to top, and through hole bottom the outer wall of piston rod and valve pocket is closely connected; Be connected with flap on piston rod top, flap controllably covers on the suction port of valve pocket;
Described body top is connected with valve gap, and valve gap and body top form closed cavity, described flap in this cavity, described intake duct and this cavity connects;
The gas source interface of described cylinder connects external air source by solenoid valve;
Described solenoid valve is two-bit triplet solenoid valve;
Described type reciprocating-piston air compressor possesses air controlled drain valve, as compressor starting up, opens air controlled drain valve, and energising exhaust delay cut-off is closed; When the compressor is shut down, open air controlled drain valve, energising exhaust delay cut-off is closed.
2. the Aspirating valves for type reciprocating-piston air compressor according to claim 1, is characterized in that described flap has through hole, and through hole is communicated with end face and the bottom surface of flap.
3. the Aspirating valves for type reciprocating-piston air compressor according to claim 1 and 2, the wall being positioned at below its piston that it is characterized in that described cylinder has pore, is connected with elastomer above piston and between cylinder top.
4. the Aspirating valves for type reciprocating-piston air compressor according to claim 3, is characterized in that the pore on described cylinder is the gas source interface of cylinder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310065572.3A CN103089583B (en) | 2012-12-31 | 2013-03-01 | For the Aspirating valves of type reciprocating-piston air compressor |
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220745085.2 | 2012-12-31 | ||
| CN2012207450852 | 2012-12-31 | ||
| CN201220745085 | 2012-12-31 | ||
| CN201310065572.3A CN103089583B (en) | 2012-12-31 | 2013-03-01 | For the Aspirating valves of type reciprocating-piston air compressor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103089583A CN103089583A (en) | 2013-05-08 |
| CN103089583B true CN103089583B (en) | 2016-02-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320094410 Expired - Fee Related CN203009236U (en) | 2012-12-31 | 2013-03-01 | Air suction valve for reciprocating piston air compressor |
| CN201310065572.3A Active CN103089583B (en) | 2012-12-31 | 2013-03-01 | For the Aspirating valves of type reciprocating-piston air compressor |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320094410 Expired - Fee Related CN203009236U (en) | 2012-12-31 | 2013-03-01 | Air suction valve for reciprocating piston air compressor |
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| CN (2) | CN203009236U (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203009236U (en) * | 2012-12-31 | 2013-06-19 | 南京尚爱机械制造有限公司 | Air suction valve for reciprocating piston air compressor |
| CN104989631A (en) * | 2015-06-09 | 2015-10-21 | 安庆卡尔特压缩机有限公司 | Novel compressor |
| CN107917079B (en) * | 2017-11-14 | 2019-07-09 | 江西风石压缩机有限公司 | A kind of screw air compressor intake valve |
| CN108730162B (en) * | 2018-08-18 | 2019-05-31 | 浙江万鼎机电有限公司 | Autocontrol valve used for air compressor |
| CN109236614B (en) * | 2018-11-01 | 2023-10-17 | 南京尚爱机械制造有限公司 | Temperature control valve for controlling cooling water flow of cylinder of piston compressor |
| CN110067753A (en) * | 2019-03-18 | 2019-07-30 | 苏州寿力气体设备有限公司 | Dry screw rod frequency conversion air compressor and its control method |
| CN110296233B (en) * | 2019-07-29 | 2024-04-02 | 浙江鸿友压缩机制造有限公司 | Electromechanical time delay valve based on Bernoulli principle and air compressor with same |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB303773A (en) * | 1927-09-02 | 1929-01-02 | Rudolf Pawlikowski | Improvements relating to internal combustion engines actuated by powdered fuel, by liquid fuel, or by both fuels |
| JPH10103545A (en) * | 1996-09-24 | 1998-04-21 | Akimoto Valve Kogyo Kk | Pressure opened type valve |
| CN2620147Y (en) * | 2003-04-10 | 2004-06-09 | 蔡文福 | Controlling valve |
| CN201934763U (en) * | 2010-11-26 | 2011-08-17 | 嵊州市金豪制冷设备有限公司 | Inspiratory capacity adjusting valve of volumetric refrigeration compressor |
| CN202326136U (en) * | 2011-11-10 | 2012-07-11 | 何东 | Combined air inlet valve for automatically controlling air compressor |
| CN203009236U (en) * | 2012-12-31 | 2013-06-19 | 南京尚爱机械制造有限公司 | Air suction valve for reciprocating piston air compressor |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
-
2013
- 2013-03-01 CN CN 201320094410 patent/CN203009236U/en not_active Expired - Fee Related
- 2013-03-01 CN CN201310065572.3A patent/CN103089583B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB303773A (en) * | 1927-09-02 | 1929-01-02 | Rudolf Pawlikowski | Improvements relating to internal combustion engines actuated by powdered fuel, by liquid fuel, or by both fuels |
| JPH10103545A (en) * | 1996-09-24 | 1998-04-21 | Akimoto Valve Kogyo Kk | Pressure opened type valve |
| CN2620147Y (en) * | 2003-04-10 | 2004-06-09 | 蔡文福 | Controlling valve |
| CN201934763U (en) * | 2010-11-26 | 2011-08-17 | 嵊州市金豪制冷设备有限公司 | Inspiratory capacity adjusting valve of volumetric refrigeration compressor |
| CN202326136U (en) * | 2011-11-10 | 2012-07-11 | 何东 | Combined air inlet valve for automatically controlling air compressor |
| CN203009236U (en) * | 2012-12-31 | 2013-06-19 | 南京尚爱机械制造有限公司 | Air suction valve for reciprocating piston air compressor |
Also Published As
| Publication number | Publication date |
|---|---|
| CN203009236U (en) | 2013-06-19 |
| CN103089583A (en) | 2013-05-08 |
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