CN201144779Y

CN201144779Y - Anti-block compressor air valve

Info

Publication number: CN201144779Y
Application number: CNU2007200819672U
Authority: CN
Inventors: 潘树林; 王玉鹏; 谭琴
Original assignee: Guangxi University
Current assignee: Zhejiang Zhejiang Ou air valve manufacturing Co., Ltd.
Priority date: 2007-11-10
Filing date: 2007-11-10
Publication date: 2008-11-05
Anticipated expiration: 2017-11-10

Abstract

The utility model relates to an anti-blocking compressor valve that comprises a valve base, an annular valve, a spring and a lifting limiter. The anti-blocking compressor valve is characterized in that the contact plane and the extending surface of the lifting limiter and the annular valve are provided with a groove. The anti-blocking compressor valve greatly prolongs the blocking period of the annular valve of the compressor, increases the effective flow area of the valve, simultaneously facilitates the timely closing of the annular valve of the compressor with the fuel, and thus improves the economic efficiency and reliability of the valve and the compressor.

Description

The anti-compressor valve that stops up

Technical field

The utility model relates to a kind of air valve device that is installed in control gaseous turnover on the compresser cylinder, particularly can resist the compressor valve of obstruction.

Background technique

Compressor is the universal machine in order to raising all gases pressure, and air valve is mounted in the parts of control gaseous turnover on the compresser cylinder.Air valve has material impact to the Economy and the reliability of compressor, is often likened to " heart " of compressor by people.The compressor valve structural type is various, in the big-and-middle-sized at home compressor, and the ring valve of forming by valve seat, ring-shaped valve, spring, lift limiter etc. that is most widely used.Ring valve in the course of the work, valve block is opened by means of the gas pressure difference between cylinder working chamber and the valve pocket, is subjected to the air-flow thrust of inlet and outlet and rises.When air-flow thrust during greater than spring reaction power, valve block rests on the lift limiter; When air-flow thrust during less than spring force, valve block is just closed downwards.

Ring valve has good seal performance, simple in structure, plurality of advantages such as cost is low, and will get well with respect to the air valve performance of anti-blockage of structural types such as netted valve, straight-wavy valve.For a long time impure when compressed media, the conventional circular valve still stops up easily but in practice.For example often contain impurity such as more dust, coal tar oil, sulphur in coal chemical technology semi-water gas compressor operating medium, these impurity stick to position such as connecting tendon surface between the ring of compressor valve valve seat runner, lift limiter runner, lift limiter and ring-shaped valve contact surface and extension thereof and the ring easily.Be used for working medium impure more compressor ring-type valve base, lift limiter runner and often be designed to major path, so these position chocking-up degrees are lighter relatively.And valve lift is crossed conference and is caused the stroke speed of valve block and valve seat and lift limiter excessive, directly has influence on the air valve life-span, therefore in the impure more compressor valve of working medium, the flow area minimum be valve clearance.For the conventional circular valve, stick to lift limiter and contact annular lip-deep impurity with ring-shaped valve the lift of air valve is descended rapidly; Sticking to its extended surface is the impurity on connecting tendon surface between lift limiter ring and the ring, then can block part valve clearance runner.They all can make effective flow area of air valve diminish, valve plate movement rule variation, and compressor so delivery temperature raise, energy consumption increases, running rate reduces, maintenance intensity increases.

Summary of the invention

The technical problems to be solved in the utility model provides the anti-obstruction compressor valve that a kind of cycle of stopping up is significantly prolonged.

The utility model solves the problems of the technologies described above with following technological scheme:

Have groove at lift limiter and ring-shaped valve contact plane and extended surface thereof.

On lift limiter and annular surface that ring-shaped valve contacts, have annular groove.

Connecting tendon surface between lift limiter ring and ring has arc groove.

Arc groove circumferentially connects each connecting tendon surface, and the radial width of arc groove is consistent with the lift limiter width of flow path.

The anti-compressor valve that stops up of the utility model, significantly prolonged the obstruction cycle of compressor ring-type valve with a kind of simple, economical and practical method, improved effective flow area of air valve, also help in time closing of hydraulic shrinking machine ring valve simultaneously, therefore the Economy of air valve and compressor and reliability all are improved.The anti-compressor valve that stops up of the utility model is used for the impure more compressor of working medium, and effect is obvious.

Description of drawings

Fig. 1 is the structural representation of traditional compressor THE LIFE OF RING TYPE VALVE limiter.

Fig. 2 is the anti-structural representation that stops up compressor ring-type valve stroke limiter of the utility model.

Embodiment

In the traditional compressor THE LIFE OF RING TYPE VALVE limiter of Fig. 1, ring 1 is arranged, between ring and the ring runner 2, connecting tendon 4 or guide ledges 3 are arranged.Lift limiter has 4 rings, 4 runners, 2 circles totally 10 connecting tendons, 2 circles totally 10 guide ledges among Fig. 1.1 circle guide ledges is used for 2 ring valve block guiding.During full-gear, the ring surface and the ring-shaped valve of lift limiter are fitted, and faying surface is a plane.The connecting tendon surface is in same plane with this faying surface, is the extended surface of this faying surface.

Anti-obstruction compressor valve is on traditional compressor ring valve basis, adopts Fig. 2 lift limiter.Fig. 2 lift limiter has groove at lift limiter and ring-shaped valve contact plane and extended surface thereof on Fig. 1 lift limiter basis.Specific as follows: as 1, on lift limiter and annular surface that ring-shaped valve contacts, to have annular groove 5.Annular groove has enough spaces to hold to enter the impurity in zone between lift limiter and the valve block, and the lift of air valve can not descended rapidly; Also because the area of contact of valve block and lift limiter significantly reduces, in hydraulic shrinking machine was arranged, when valve block began to close, the viscous force that is subjected to lubricant oil also declined to a great extent, and helped air valve and in time closed simultaneously.2, be connecting tendon surface open arc connected in star 6 between lift limiter ring and the ring at the extended surface of lift limiter and ring-shaped valve contact plane.Arc groove circumferentially connects each connecting tendon surface, and radial width is consistent with the lift limiter width of flow path.Arc groove has enough spaces to hold to enter this interval impurity, is unlikely to stop up, and arc groove can also be as runner simultaneously, and the air-flow that flow through connecting tendon corresponding position valve clearance flows into arc groove earlier, enters the lift limiter runner again.Like this, effective flow area of air valve can also obtain increasing, and compressor exhaust temperature and energy consumption obtain descending.

The utility model is anti-to be stopped up compressor valve and tests in working medium contains the semi-water gas compressor of a large amount of impurity, and the air valve cycle of stopping up significantly prolongs, and the Economy of air valve and compressor and reliability be obviously improve all.

Claims

1. the anti-compressor valve that stops up has valve seat, ring-shaped valve, spring and lift limiter, it is characterized in that lift limiter and ring-shaped valve contact plane and extended surface thereof are fluted.

2. anti-obstruction compressor valve as claimed in claim 1 is characterized in that on lift limiter and annular surface that ring-shaped valve contacts annular groove being arranged.

3. anti-obstruction compressor valve as claimed in claim 1 is characterized in that there is arc groove on the connecting tendon surface between lift limiter ring and ring.

4. anti-obstruction compressor valve as claimed in claim 3 is characterized in that arc groove circumferentially connects each connecting tendon surface, and the radial width of arc groove is consistent with the lift limiter width of flow path.