CN2789194Y

CN2789194Y - Blade type rotary feeding valve

Info

Publication number: CN2789194Y
Application number: CN 200520012541
Authority: CN
Inventors: 祝甫光; 孙玉霞
Original assignee: SIFANG JIATE FLUID EQUIPMENT CO Ltd DALIAN
Current assignee: SIFANG JIATE FLUID EQUIPMENT CO Ltd DALIAN
Priority date: 2005-04-07
Filing date: 2005-04-07
Publication date: 2006-06-21
Anticipated expiration: 2015-04-07

Abstract

The utility model discloses an impeller type rotary feeding valve used in a high-temperature environment, which comprises a valve body and a circular column rotor in the valve body, wherein the circular column rotor comprises a shaft and a circular column impeller sheathed to the shaft. The shaft is provided with bearings positioning on both sides of the circular column rotor; vanes are arranged on the outer ring of the circular column impeller at intervals; each end of the vanes is provided with a material scrapping knife component comprising a material scrapping knife and a bolt, and the bolt is matched with a bolt hole arranged on the end of each vane and is used for fixing the material scrapping knife. In addition, the rotor surface is sprayed with an oven-dried teflon smooth coating beforehand. Under the condition conveying material which can be easily plasticized and glued under high temperature, the impeller type rotary feeding valve of the utility model can run without failure; the utility model has the characteristics of air leak prevention, gluing free, high-temperature resistance, small abrasion, equivalent imported product replacement and cost saving.; the long service life of the utility model is ensured, and the performance indexes of the congener imported product devices can be achieved.

Description

Vane type revolution inlet valve

Technical field

The utility model relates to a kind of vane type revolution inlet valve, more particularly, relates to the vane type revolution inlet valve that uses under a kind of hot environment.

Background technology

During traditional vane type revolution inlet valve is widely used in, in the pressure sending type Pneumatic conveyer of low temperature, carry the material of powder shape and little bulk.When material need be carried under higher temperature, and under this temperature when the existing soffening of material list, cohesiveness, the use of traditional revolution inlet valve has been subjected to serious restriction.The swivel feeding valve of the Shi Yonging import that places one's entire reliance upon in the market, homemade like product exist various defectives such as gas leakage, bonding, non-refractory, serious wear etc.

Summary of the invention

At the problems referred to above, the purpose of this utility model provides a kind of vane type revolution inlet valve that is provided with the scraper cutter, solved in the market like product when convey materials, the defective that has gas leakage, bonding, non-refractory, serious wear, and under hot environment, like product is short service life, the problem of serious dependence on import.

For achieving the above object, the utility model provides a kind of vane type revolution inlet valve, comprises valve body 7, valve body 7 in-to-in cylindrical rotors; Cylindrical rotor comprises axle 8 and is socketed on the cylindrical impeller 9 of axle on 8; Axle 8 is provided with the bearing 12 that is positioned at described cylindrical rotor both sides; The outer ring of cylindrical impeller 9 is arranged at intervals with blade 29; The end of blade 29 is provided with the scraper knife assembly, and the scraper knife assembly comprises the scraper cutter, and matches with the bolt hole of blade tip setting and to be used for fixing the bolt of scraper cutter.

The further improvement of a kind of vane type revolution of the utility model inlet valve is that the scraper cutter comprises aluminium blade or the steel blade or the copper sheet of stacked setting, the perhaps combination of aluminium blade, copper sheet and steel blade; And the polytetrafluoroethylene bar blade or the steel blade of stacked setting, or the combination of polytetrafluoroethylene bar blade and steel blade; The front end of scraper cutter is provided with groove, oblique angle or cutting edge.

The further improvement of a kind of vane type revolution of the utility model inlet valve also is, vaned cylindrical impeller 9 is set is casting integrated member or welding product; The Teflon that the surface of cylindrical impeller is provided with after the oven dry is lubricious; The cylindrical rotor two ends are provided with the end cap 13 that is socketed on the described axle 8, are provided with on the end cap 13 and see pressed gas interface 14; End cap 13 is provided with graphite packing 3 with the matching part of axle 8, and pad lubrication system 4; The outer end of described end cap 13 is provided with packing gland 15, and the sidepiece of packing gland 15 is provided with air gate 2.

The further improvement of a kind of vane type revolution of the utility model inlet valve is that also the both sides of bearing 12 are provided with the combined seal 1 that lays respectively at end cap 13 inboards and end ring 10 inboards; End cap 13 is provided with the forced filling oil cup 11 of lubricated described bearing 12.

Vane type revolution inlet valve of the present utility model is owing to adopt special packing, special greases, combined seal, and the adjustable scraper cutter that F-SP is installed, realized carry high temperature easily plastify, easily under the situation of binding material, equipment can failure-freely move; Have anti-gas-leak, non-caked, high temperature resistant, the little characteristics of wearing and tearing, guaranteed that device has long service life, can reach the performance figure of similar imported product equipment, have equivalent substitution, save the characteristics of cost.

Description of drawings

Fig. 1 is the principal section scheme drawing of the utility model vane type revolution inlet valve;

Fig. 2 be among Fig. 1 B-B to cutaway view;

Fig. 3 is the enlarged drawing of local A among Fig. 2.

Among the figure: the 1-combined seal; The 2-air gate; The 3-filler; 4-pad lubrication system; The pre-oxygen carbon fiber of 5-free of discontinuities packing; The special-purpose aramid fiber braiding of 6-packing; The 7-valve body; The 8-axle; 9-vane type cylindrical rotor; The 10-end ring; 11-leads directly to forced filling oil cup; The 12-bearing; The 13-end cap; 14-pressed gas interface; The 15-packing gland; 16-packing pressure ring; The 17-bolt; 18-groove sword; 19-oblique angle sword; The 20-access cover; The 29-blade.

The specific embodiment

Shown in the principal section view of Fig. 1 the utility model vane type revolution inlet valve, a vane type cylindrical rotor is installed in valve body 7, this rotor is welded by axle 8 and cast-in-block cylindrical impeller 9, wherein the blade 29 of cylindrical impeller 9 also can adopt welding process to be fixed on the impeller body, also can adopt other modes to fix.

Turn round the partial enlarged drawing of the B-B of inlet valve in conjunction with Fig. 1 the utility model vane type shown in Figure 2 to cutaway view and A shown in Figure 3.End at cylindrical impeller is fixed the stainless steel strip blade 19 at 18 and oblique angles of aluminum strip blade (or polytetrafluoroethylene bar blade) of a side recessing on it by bolt 17, aluminum strip blade and steel bar blade all can be used to adjust the gap of blade and body cavity, this gap is generally 0.1～0.4mm, adopt job operation to be difficult to obtain, the utility model is realized the setting in gap by the position of adjustable bolt fixed blade under the cooperation of clearance gauge.The line expansion factor of aluminium is greater than the line expansion factor of steel under hot environment, and this makes the het expansion of when temperature is higher aluminum strip greater than the het expansion of valve body, and there is well-known difference in the hardness of the two, thereby makes rotor unlikely stuck when high temperature.In use for some time, because wearing and tearing, the gap of blade and body cavity can become greatly, and also can adjust the position of aluminum strip blade (or polytetrafluoroethylene bar blade) 18, stainless steel strip blade 19 this moment by access opening 20, makes the gap recover to require setting value.Can temporarily gather material by the linear space that the steel bar blade at the groove of aluminum strip blade and oblique angle forms when rotor rotation, scraper blade are inboard by valve body, such scraper blade makes material can not be bonded at valve interior wall.Wherein, the above-mentioned blade material and the number of stacked blade, mode can suitably change, and the form of its groove, oblique angle or cutting edge also can suitably change, and the purpose that groove is set is in order to reduce the friction of scraper cutter and inwall, under the condition of proof strength, the depowering requirement.Its version as, stainless steel strip blade 19 is provided with groove and folds in the aluminum blade top that has the oblique angle; Perhaps two blades all are provided with the form that cooresponding oblique angle constitutes a space.And the material of above-mentioned blade also can adopt the combination of brass blade and steel blade, perhaps the combination of polytetrafluoroethylene, poly-chloroprene rubber, Teflon or the like blade and steel blade.

In addition, the surface of cylindrical rotor sprays one deck liquid Teflon in advance, forms lubriciously behind hyperthermia drying, has significantly reduced the adhesive attraction with material.Simultaneously, compress the pre-oxygen carbon fiber of free of discontinuities packing 5 and special-purpose aramid fiber braiding packing 6 by packing pressure ring 16 on the cylindrical of cylindrical rotor two ends, the pre-oxygen carbon fiber of free of discontinuities packing soaks into polytetrafluoroethylene, its highest temperature can be to 240 ℃, linear velocity is to 15m/s, chemical resistance is PH:1～13, and pressure can be to 30kg/cm2, and its good characteristics are suitable for various operating modes.Special-purpose aramid fiber braiding packing has bigger elasticity and lasting resistance to abrasion in good compressive strength.Can pass through pressed gas interface 14 cut-in pressure gases in the cavity that cylindrical rotor two ends and end cap 13 form, play the effect that material leaks that intercepts.Pressed gas if necessary, can be injected lubricant by pad lubrication system 4 and lubricate whole packing seal by graphite packing 3 sealings, prevents sealing wear.At the interior rear portion of packing gland 15 toroidal cavity is arranged, the bottom of this cavity is provided with an air gate 2, can be at valve run duration proof bar leak tightness (have gas and discharge in the hole when sealing property is not good, this moment is the pretension packing gland once more) by this hole.The afterbody of two ends end cap 13 is installed bearing 12, main bearing radial force of this bearing and minimum axial force; Respectively there is a combined seal (1) the bearing both sides, be installed in the end cap 13 respectively and in the end ring 10, combined seal uses the special antiwear material, has minimum friction coefficient, make be multiplied service life, its serviceability temperature scope very big (200 ℃～+ 230 ℃) can be applied to the medium and high temperature environment simultaneously, the excellent sealing of combined seal makes that the running environment of bearing is fabulous, increases the service life greatly.Bearing 12 injects extraordinary fat by through type forced filling oil cup 11 and comes lubricating bearings 12.Special oil is up-to-date in the world sulfo group fat paradigmatic structure, shows as 1. hydrophobicity performances; 2. heat resistance has dropping point height, characteristics that the high temperature consistency change is little; 3. stability performance is strong, respectively shearing, antiageing, anti-chemical preservation than traditional lithium base, aluminium base, areidofat is high tens of times.

The above; it only is the preferable specific embodiment of the utility model; but protection domain of the present utility model is not limited thereto; anyly be familiar with those skilled in the art in the technical scope that the utility model discloses; be equal to replacement or change according to the technical solution of the utility model and utility model design thereof, all should be encompassed within the protection domain of the present utility model.

Claims

1, a kind of vane type revolution inlet valve comprises valve body (7), described valve body (7) in-to-in cylindrical rotor; Described cylindrical rotor comprises axle (8) and is socketed on cylindrical impeller (9) on the described axle (8); Described axle (8) is provided with the bearing (12) that is positioned at described cylindrical rotor both sides; The outer ring of described cylindrical impeller (9) is arranged at intervals with blade (29), it is characterized in that, the end of described blade (29) is provided with the scraper knife assembly, and described scraper knife assembly comprises the scraper cutter, and the bolt (17) that matches and be used for fixing the scraper cutter with the bolt hole of described blade tip setting.

2, according to the described vane type revolution of claim 1 inlet valve, it is characterized in that described scraper cutter comprises aluminium blade or the steel blade or the copper tool sheet of stacked setting, the perhaps combination of aluminium blade, copper tool sheet and steel blade.

3, according to the described vane type revolution of claim 1 inlet valve, it is characterized in that described scraper cutter comprises the polytetrafluoroethylene bar blade or the steel blade of stacked setting, or the combination of polytetrafluoroethylene bar blade and steel blade.

4, according to claim 1 or 2 or 3 described vane type revolution inlet valves, it is characterized in that the front end of described scraper cutter is provided with groove, oblique angle or cutting edge.

5, according to claim 1 or 2 or 3 described vane type revolution inlet valves, it is characterized in that the surface of described cylindrical impeller (9) is provided with lubricious, described coating is the Teflon coating after drying.

6, according to claim 1 or 2 or 3 described vane type revolution inlet valves, it is characterized in that, vaned described cylindrical impeller (9) is set is casting integrated member or welding product.

7, according to claim 1 or 2 or 3 described vane type revolution inlet valves, it is characterized in that described cylindrical rotor two ends are provided with the end cap (13) that is socketed on the described axle (8), described end cap (13) is provided with pressed gas interface (14); Described end cap (13) is provided with graphite packing (3) with the matching part of described axle (8), and pad lubrication system (4).

8, according to the described vane type revolution of claim 6 inlet valve, it is characterized in that the outer end of described end cap (13) is provided with packing gland (15), the sidepiece of described packing gland (15) is provided with air gate (2).

According to the described vane type revolution of claim 1 inlet valve, it is characterized in that 9, the both sides of described bearing (12) are provided with inboard and the inboard combined seal (1) of end ring (10) that lays respectively at end cap (13).

10, described according to Claim 8 vane type revolution inlet valve is characterized in that described end cap (13) is provided with the forced filling oil cup (11) of lubricated described bearing (12).