CN202030327U

CN202030327U - Rotary valve feeding port structure

Info

Publication number: CN202030327U
Application number: CN 201120129121
Authority: CN
Inventors: 许燕; 高峥嵘; 陈铁军; 赵凯烽; 黄正林; 童志阳
Original assignee: China Petroleum and Chemical Corp; Sinopec Shanghai Engineering Co Ltd
Current assignee: China Petroleum and Chemical Corp; Sinopec Shanghai Engineering Co Ltd
Priority date: 2011-04-28
Filing date: 2011-04-28
Publication date: 2011-11-09
Anticipated expiration: 2021-04-28

Abstract

The utility model relates to a rotary valve feeding port structure. A feeding port is arranged at the top of a casing which is provided with an impeller rotor and in a cavity, and an air leakage outlet communicated with the cavity is arranged on one side of the feeding port. The rotary valve feeding port structure is characterized in that a feeding sleeve assembly is sleeved on the inner wall of the feeding port, and the feeding sleeve assembly is formed by a tube-shaped body and a sloping plate. One side of the lower end of the tube-shaped body is close to the air leakage outlet and extends to the air leakage outlet. The upper end of the sloping plate is connected with one side of the inner wall of the tube-shaped body to form an angle, and the side of the inner wall is close to the air leakage outlet. The lower end of the sloping plate extends to a position approaching the rotating outer diameter of the impeller rotor. The rotary valve feeding port structure essentially solves a technical problem that when pneumatic transport pressure of the existing product is increased, most leakage air which carries materials is discharged from the air leakage outlet. In addition, technical problems that partial leakage air flows upward against a current from an inlet of the rotary valve and blanking quantity of the rotary valve is affected are solved. The rotary valve feeding port structure is simple in structure and easy to manufacture, saves investment, reduces energy consumption, and can be popularized to be used in the existing pneumatic transport rotary valve.

Description

The rotovalve feeding inlet structure

Technical field

The utility model relates to solid powder/particle material pneumatic transport equipment rotovalve, particularly a kind of rotovalve feeding inlet structure.

Background technology

Rotovalve is one of key equipment in the air-transport system, is a kind of case type feeding device, and rotovalve often uses as the loader of air-transport system, in order to convey materials is infeeded delivery duct continuously or off and on.

Existing rotary valve structure is as shown in Figure 1: inlet point 4 is arranged at the top of housing 1, and discharging opening 5 is arranged at the bottom, is a cavity in the middle of in the housing 1.Has vane rotor 2 in this cavity, when the vane rotor 2 that is starriness turned round in the osed top cavity, the impeller groove of the rotovalve first half was full of by material, and rotor continues rotation, the material that is enclosed in the impeller groove is gone to the rotovalve lower part, relies on the gravity of material to be drawn off by discharging opening 5.Inlet point 4 one sides on the described housing 1 also have the leakage gas port 3 that connects with cavity, are used for the leakage gas that produces when rotovalve turned round.

When the strength delivery pressure increases, the corresponding increase of leakage tolerance of rotovalve, most on the one hand gas that leak are being carried material secretly from leaking the gas port discharge, and some leaks gas from rotovalve import adverse current upwards on the other hand, and the blanking amount that has influenced rotovalve is that the filling rate of rotovalve has reduced.Certainly will cause under the condition of same delivery pressure and rotating speed, actual blanking ability has reduced, and select the rotovalve of bigger blanking ability could satisfy desired blanking amount, has both increased investment cost of equipment, has also increased energy consumption.

The utility model content

The purpose of this utility model is to provide a kind of rotovalve feeding inlet structure, mainly solve when existing product strength delivery pressure increases, most gas that leak are being carried material secretly from leaking the gas port discharge, some leaks gas from rotovalve import adverse current upwards on the other hand, has influenced the technical matters of the blanking amount of rotovalve, and it is simple in structure, be easy to make, reduce investment outlay, cut down the consumption of energy, extend to existing strength and carry with in the rotovalve.

For achieving the above object, the utility model is to realize like this.

A kind of rotovalve feeding inlet structure, this inlet point is arranged on the case top that has vane rotor in the cavity, and inlet point one side also has the leakage gas port that connects with cavity; It is characterized in that: described inlet point inner wall sleeve is provided with a feed sleeve assembly, and described feed sleeve assembly is made of a tubular body and a swash plate; Described tubular body lower end extends to the leakage gas port near a side of leaking gas port, and described swash plate upper end is connected near leakage gas port one side with the tubular body inwall and forms an angle, and the swash plate lower end extends to the position near vane rotor rotation external diameter.

Described rotovalve feeding inlet structure is characterized in that: described tubular body lower end extends near a side of leaking gas port and leaks between inner wall suitable for reading of gas port and the end opening wall.

By said structure also compared with prior art, advantage of the present utility model is: the rotovalve inlet point is provided with the feed sleeve assembly set, when the strength delivery pressure increases, during the also corresponding increase of leakage tolerance of rotovalve, the material of carrying secretly from the gas that leaks the gas port discharge has reduced, the leakage gas that makes progress from rotovalve import adverse current has not had on the other hand, and the filling rate of rotovalve, blanking ability can not reduce.Solved existing strength and carried the defective that exists with rotovalve, saved the equipment investment expense, cut down the consumption of energy, may be used on existing strength and carry with in the rotovalve.

Description of drawings

Fig. 1 is the structural representation of existing rotovalve.

Fig. 2 is a structural representation of the present utility model.

The specific embodiment

See also Fig. 2, it discloses a kind of rotovalve that uses the utility model structure.As shown in the figure: it comprises housing 1, and the top of described housing 1 has inlet point 4, bottom that discharging opening 5 is arranged, and middle in the housing 1 is a cavity, has vane rotor 2 in the cavity, and inlet point 4 one sides on the described housing 1 also have the leakage gas port 3 that connects with cavity.Described inlet point 1 inner wall sleeve is provided with a feed sleeve assembly 6, and described feed sleeve assembly 6 is made of a tubular body 61 and a swash plate 62; Described tubular body 61 lower ends extend near a side of leaking gas port 3 and leak gas port 3, described swash plate 62 upper ends are connected near leakage gas port 3 one sides with tubular body 61 inwalls and form an angle, and swash plate 62 lower ends extend to the position near vane rotor 2 rotation external diameters.

In the rotovalve import feed sleeve assembly set is set, when the strength delivery pressure increases, during the also corresponding increase of the leakage tolerance of rotovalve, owing in the tubular body 61 of feed sleeve assembly 6, increased a swash plate 62, its upper surface towards inlet point 4 can make material directly enter the rotovalve cavity through swash plate, it can make the material of carrying secretly from the gas that leaks the gas port discharge be blocked minimizing towards the lower surface of leaking gas port 3, the leakage gas that makes progress from rotovalve import adverse current on the other hand, because two layers through tubular body 61 and swash plate 62 stop also do not had (therefore, a kind of structure of implementing preferably is: described tubular body 61 lower ends extend near a side of leaking gas port 3 and leak between gas port 3 inner walls suitable for reading and the end opening wall), the filling rate of rotovalve, the blanking ability can not reduce.

Claims

1. rotovalve feeding inlet structure, this inlet point (4) is arranged on housing (1) top that has vane rotor (2) in the cavity, and inlet point (4) one sides also have the leakage gas port (3) that connects with cavity; It is characterized in that: described inlet point (1) inner wall sleeve is provided with a feed sleeve assembly (6), and described feed sleeve assembly (6) is made of a tubular body (61) and a swash plate (62); Described tubular body (61) lower end extends near a side of leaking gas port (3) and leaks gas port (3), described swash plate (62) upper end is connected near leakage gas port (3) one sides with tubular body (61) inwall and forms an angle, and swash plate (62) lower end extends to the position near vane rotor (2) rotation external diameter.

2. rotovalve feeding inlet structure according to claim 1 is characterized in that: described tubular body (61) lower end extends near a side of leaking gas port (3) and leaks between inner wall suitable for reading of gas port (3) and the end opening wall.