CN-224220989-U - Safety valve for vacuum suction filtration of superfine fibers

Abstract

The utility model discloses a safety valve for vacuum suction filtration of superfine fibers, and relates to the field of superfine fiber production. The utility model relates to a safety valve for vacuum suction filtration of superfine fibers, which comprises a valve body, wherein the air inlet end of the valve body is communicated with the air outlet end of a vacuum pump set through a flange plate, the air outlet end of the valve body is communicated with the air inlet end of an exhaust pipe through the flange plate, the safety valve further comprises a filter plate which is rotationally connected at a position inside the valve body close to the air inlet end, a rotating shaft which is rotationally connected in the valve body through a bracket, and a driving fan blade which is fixedly connected on the rotating shaft.

Inventors

• BAI ZHEN
• ZHAO YONG
• BAI YUJIANG

Assignees

• 山东锦泰晶须科技发展有限公司

Dates

Publication Date

20260512

Application Date

20250422

Claims (6)

1. 1. A safety valve for superfine fiber vacuum suction filtration, its characterized in that includes valve body (3), the inlet end of valve body (3) is put through with the end of giving vent to anger of vacuum pump package (1) through the ring flange mutually, the end of giving vent to anger of valve body (3) is put through with the inlet end of blast pipe (2) through the ring flange mutually, still includes: The filter plate (301) is rotationally connected to the position, close to the air inlet end, inside the valve body (3); A rotating shaft (302) rotatably connected in the valve body (3) through a bracket (303); the driving fan blades (304) are fixedly connected to the rotating shaft (302); The filter plate (301) is fixedly connected with one end, far away from the bracket (303), of the rotating shaft (302).
2. 2. A safety valve for vacuum filtration of ultrafine fibers according to claim 1, characterized in that the filter plate (301) is a conical filter plate.
3. 3. The safety valve for vacuum filtration of superfine fibers according to claim 1, wherein a slot is transversely formed in the valve body (3) at a position close to the air inlet end, and an annular collecting box (306) is connected in the slot of the valve body (3) in a sealing sliding manner.
4. 4. A safety valve for vacuum filtration of ultrafine fibers according to claim 3, characterized in that a sealing plate (307) is fixedly connected to one side of the annular collecting box (306), and the sealing plate (307) is closely attached to the outer wall of the valve body (3).
5. 5. A safety valve for vacuum filtration of ultrafine fibers according to claim 3, wherein the rotating shaft (302) penetrates through one end of the filter plate (301) downwards and is fixedly connected with a plurality of scraping strips (305) at equal intervals in circumference, and the scraping strips (305) are in sliding contact with the inner wall of the valve body (3).
6. 6. The safety valve for vacuum filtration of ultrafine fibers according to claim 5, characterized in that an inclined surface (3061) is provided at the mouth of the annular collecting box (306).

Description

Safety valve for vacuum suction filtration of superfine fibers Technical Field The utility model belongs to the technical field of superfine fiber production, and particularly relates to a safety valve for vacuum suction filtration of superfine fibers. Background In modern industrial production, the superfine fiber material is widely applied to various fields due to unique physical and chemical properties, such as high specific surface area, good adsorptivity and the like, and in the production process of superfine fibers, vacuum suction filtration is a key separation and purification link which plays an important role in removing solvents and impurities in superfine fiber solution and obtaining high-quality superfine fiber products. In traditional superfine fiber vacuum suction filtration system, can be equipped with the relief valve generally on the vacuum pump package, when starting the vacuum pump package, this valve can play a role, makes the electric current diminish, can protect the motor like this, avoids the motor to be damaged because of the electric current is unusual, simultaneously, after the valve is closed, can also let tail gas pipeline interrupt, prevents the tail gas backward flow to the security when lifting means operates. However, in the actual use process of these valves, during vacuum filtration, part of impurities in the solution will pass through the filter component of the filter device and be pumped out along with the gas, when these gases mixed with impurities pass through the valves, the impurities are easy to adhere to the valve core of the valve, so that the tightness of the valve core is reduced when the valve core is closed, and then the tail gas is caused to flow back, thus affecting the safety of the vacuum filtration system. Disclosure of utility model The utility model aims to overcome the defects of the prior art and provide a safety valve for vacuum suction filtration of superfine fibers, which can overcome the problems or at least partially solve the problems. The safety valve for vacuum suction filtration of superfine fibers comprises a valve body, wherein the air inlet end of the valve body is communicated with the air outlet end of a vacuum pump set through a flange plate, the air outlet end of the valve body is communicated with the air inlet end of an exhaust pipe through the flange plate, the safety valve further comprises a filter plate rotationally connected to the position, close to the air inlet end, inside the valve body, of the valve body, a rotating shaft rotationally connected to the valve body through a support, driving fan blades are fixedly connected to the rotating shaft, and the filter plate is fixedly connected with one end, far away from the support, of the rotating shaft. In order to facilitate more efficient interception of impurities mixed in the gas, further, the filter plate is a conical filter plate. In order to collect the impurity that the filter was got rid of when the clearance certainly, further, the slot has transversely been seted up to the position that is close to the inlet end in the valve body, sealed sliding connection has annular collection box in the slot of valve body. In order to be convenient for improve the leakproofness between valve body and the annular collection box to and be convenient for take out the annular collection box, still further, one side fixedly connected with closing plate of annular collection box, closing plate closely pastes with the outer wall of valve body. In order to be convenient for strike off the attached impurity of valve body inner wall, prevent that impurity from piling up and influencing valve normal operating, furthermore, the axis of rotation runs through downwards and is circumference equidistance fixedly connected with many scraping strip in the one end of filter, scrape and move the strip and paste with the inner wall slip of valve body mutually. In order to prevent part of the impurities from accumulating at the box opening, so that the impurities discharged from the box opening drop into the vacuum pump set when the annular collecting box is moved out, and further, an inclined surface is arranged at the box opening of the annular collecting box. By adopting the technical scheme, the utility model has the advantages that the filter plate intercepts impurities, and can effectively reduce the adhesion of the impurities to the valve core of the valve, thereby guaranteeing the tightness of the valve core when the valve core is closed, avoiding the occurrence of the problem of tail gas backflow caused by the loose sealing of the valve core, and effectively improving the stability and the reliability of a vacuum suction filtration system. The self-cleaning function of the filter plate ensures the smoothness of the air flow passing through the filter plate, so that the vacuum pump set can work more efficiently, maintain a stable negative pressure environment, improve the efficiency and quality