CN213479285U

CN213479285U - Liquid ring vacuum pump and liquid ring compressor valve block type check valve

Info

Publication number: CN213479285U
Application number: CN202022606726.3U
Authority: CN
Inventors: 程德伟; 凃铖
Original assignee: HUBEI TONGFANG HI-TECH PUMP CO LTD
Current assignee: HUBEI TONGFANG HI-TECH PUMP CO LTD
Priority date: 2020-11-12
Filing date: 2020-11-12
Publication date: 2021-06-18
Anticipated expiration: 2030-11-12

Abstract

Liquid ring vacuum pump and liquid ring compressor valve block formula check valve includes valve body, annular valve block and valve plate. The valve body includes annular shell and the coaxial circular bottom plate of settling in the shell inside, be sealing connection between the outer lane of bottom plate and the inner wall of shell, a plurality of axial stand and a plurality of axial ventilation through-hole are provided with equally respectively on one little big two concentric circles of bottom plate inboard surface, annular valve block cover is in the outside of the circle that the stand encloses, when the laminating of bottom plate surface in annular valve block and the stand outside, can prevent the air current from circulating from ventilation through-hole, the tip at the stand is settled to the valve block, the middle part of valve plate is provided with big bleeder vent, the equidistance is provided with a plurality of little bleeder vents on the corresponding circle of valve block on the valve plate, the valve block adopts light in weight, non-deformable, the relative valve body of corrosion. The check valve has the advantages of small opening and closing energy consumption, sensitive opening and closing reaction, good sealing effect, no noise and the like.

Description

Liquid ring vacuum pump and liquid ring compressor valve block type check valve

Technical Field

The utility model relates to a liquid ring vacuum pump and liquid ring compressor valve block formula check valve, this check valve both can regard as liquid ring vacuum pump inlet end gas check valve, also can regard as liquid ring compressor exit end gas check valve, belong to liquid ring vacuum pump and liquid ring compressor check valve technical field.

Background

Currently, a check valve for a liquid ring vacuum pump and a liquid ring compressor, which are widely used in industry, is a spring type check valve. The check valve consists of a valve body, an inner baffle arranged on the inner side of the valve body, a valve, a hinge and a lifting ring arranged on the outer side of the valve body, wherein the valve is connected with the inner baffle through the hinge. The valve of the check valve consists of two semicircles, the hinge consists of a chain plate, a rotating shaft and a spring, and all parts are made of metal. The following description is made by using a gas check valve at the inlet end of a liquid ring vacuum pump, and the working principle of the gas check valve at the outlet end of the liquid ring compressor is completely the same as that of the gas check valve at the inlet end of the liquid ring vacuum pump. When the liquid ring vacuum pump is started, the valve is opened by the air flow overcoming the elastic force of the spring, and when the liquid ring vacuum pump stops working, the valve is closed by the elastic force of the spring. The check valve has the following defects: 1. when the air flow valve works, the valve is opened only when the air flow overcomes the elastic force of the spring, and the air flow consumes power when overcoming the elastic force of the spring, so that the energy consumption is high; 2. the spring works for a long time, the fatigue failure phenomenon can occur, the sealing is not tight when the machine is stopped, and the service life is short; 3. when the valve is opened and closed, large abnormal sound and large noise can be generated due to the collision of metal material parts.

Disclosure of Invention

The utility model discloses it is not enough to the aforesaid of current liquid ring vacuum pump and liquid ring compressor check valve, a new liquid ring vacuum pump and liquid ring compressor valve block formula check valve is provided, this check valve is by the valve body, valve block and valve gap are constituteed, for the platykurtic structure, moreover, the steam generator is simple in structure and reliable, its valve block adopts light in weight, non-deformable, the relative metal valve body of corrosion resistant and texture and the softer non-metallic material of metal valve gap are made, can effectively the noise reduction, the structure of its valve block both sides can carry out good support to the valve block, can also guarantee the gaseous even unobstructed circulation in valve block both sides, this check valve has that the switching energy consumption is little, the switching reaction is sensitive, it is sealed effectual, advantages such as noiselessness.

In order to achieve the above object, the technical solution of the present invention is:

liquid ring vacuum pump and liquid ring compressor valve block formula check valve, which comprises a valve body, annular valve block and valve plate, the valve body includes annular shell and the coaxial circular bottom plate of settling in the shell inside, be sealing connection between the outer lane of bottom plate and the inner wall of shell, a little big two concentric circles of bottom plate inboard surface divide equally respectively and are provided with a plurality of axial stand and a plurality of axial ventilation hole, annular valve block cover is in the outside of the circle that the stand encloses, when the laminating of the bottom plate surface in annular valve block and the stand outside, can prevent the air current from ventilating the ventilation hole circulation, the tip at the stand is settled to the valve plate, the middle part of valve plate is provided with big bleeder vent, the corresponding circle of valve block equidistance is provided with a plurality of little bleeder vents on the valve plate, the valve block adopts light in weight, non-deformable, corrosion.

Preferably, a plurality of supporting tables are further arranged at the annular included angle between the inner wall of the shell and the inner side wall of the bottom plate in an equally-divided mode, the annular valve plate is arranged between the supporting tables and the upright posts, and a gap is reserved between the outer edge of the valve plate and the inner wall of the shell.

Preferably, the valve plate is detachably fixed at the end of the upright post, and the valve plate is fixed at the end of the upright post through a bolt.

Preferably, the valve plate is made of polytetrafluoroethylene or ultra-high molecular weight polyethylene.

Preferably, the valve plate is internally provided with an annular reinforcing plate or an annular reinforcing net made of light alloy.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the utility model discloses constitute by valve body, valve block and valve gap. The valve block is made of a nonmetal material which is light in weight, not easy to deform, corrosion resistant and soft relative to the metal valve body and the metal valve cover, noise can be effectively reduced, the structures on two sides of the valve block can well support the valve block, and gas on two sides of the valve block can be uniformly and smoothly circulated. The check valve has the advantages of small opening and closing energy consumption, sensitive opening and closing reaction, good sealing effect, no noise and the like, and has outstanding practicability and innovation.

2. The utility model discloses in, the inside of valve block is provided with light alloy additional strengthening, can further improve the stability of valve block structure, improves sealed effect.

Drawings

Fig. 1 is a schematic structural diagram of the present invention;

FIG. 2 is a cross-sectional view of this FIG. 1;

FIG. 3 is a schematic structural view of the valve body of the present invention;

fig. 4 is a sectional view taken along line a-a in fig. 3.

In the figure: the valve comprises a valve body 1, a valve plate 2, a valve plate 3, a metal winding gasket 4, a hoisting screw hole 5, a large air hole 6, a small air hole 7, a bolt 8, an air through hole 9, a stand column 10 and a support table 11.

Detailed Description

The invention is described in further detail below with reference to the following description of the drawings and the description of the embodiments.

Referring to fig. 1 to 4, the liquid ring vacuum pump and liquid ring compressor valve sheet type check valve comprises a valve body 1, an annular valve sheet 2 and a valve plate 3, wherein the valve body 1 comprises an annular shell and a circular bottom plate coaxially arranged in the shell, the outer ring of the bottom plate is in sealing connection with the inner wall of the shell, a plurality of axial upright posts 11 and a plurality of axial ventilation through holes 10 are respectively arranged on two small concentric circles and large concentric circles on the inner side surface of the bottom plate in equal intervals, the annular valve sheet 2 is sleeved on the outer side of the circle enclosed by the upright posts 11, when the annular valve sheet 2 is attached to the surface of the bottom plate on the outer side of the, the valve plate 3 is arranged at the end part of the upright post 11, the middle part of the valve plate 3 is provided with a large air vent 7, a plurality of small air vents 8 are equidistantly arranged on the circle corresponding to the valve block 2 on the valve plate 3, and the valve block 2 is made of non-metallic materials which are light in weight, difficult to deform, corrosion-resistant and softer in texture relative to the valve body and the valve cover.

As the preferred technical scheme, a plurality of supporting tables 12 are also arranged at the annular included angle between the inner wall of the shell and the inner side wall of the bottom plate in an equal-dividing manner, at the moment, the annular valve plate 2 is arranged between the supporting tables 12 and the upright post 11, and a gap is reserved between the outer edge of the valve plate 3 and the inner wall of the shell.

Preferably, the valve plate 3 is detachably fixed at the end of the upright post 11, and the valve plate 3 is fixed at the end of the upright post 11 through a bolt 9.

As the preferred technical scheme, the valve plate 2 is made of polytetrafluoroethylene or ultra-high molecular weight polyethylene.

As the preferred technical scheme, the valve plate 2 is internally provided with an annular reinforcing plate or an annular reinforcing net made of light alloy.

Example 1:

as shown in fig. 1 to 4: a liquid ring vacuum pump and liquid ring compressor valve sheet type check valve, including valve block 1, annular valve block 2 and valve plate 3, the valve block 1 includes the annular outer casing and coaxial circular bottom plate that is set in the inner of the outer casing, for the sealing connection between the outer lane of the bottom plate and the inner wall of the outer casing, there are several axial uprights 11 and several axial ventilating through holes 10 on two small and big concentric circles of the inner side surface of the bottom plate, there are several supporting tables 12 in the annular included angle between inner wall of the outer casing and inner wall of the bottom plate, the annular valve block 2 is set between supporting table 12 and upright 11, leave the interval between outer edge of the valve plate 3 and inner wall of the outer casing, when the annular valve block 2 and the bottom plate surface between upright 11 and supporting table 12 are laminated, can prevent the air current from ventilating through holes 10, the valve plate 3 is set in the end of the upright 11, the middle part of the valve plate 3, a plurality of small air holes 8 are equidistantly arranged on a circle of the valve plate 3 corresponding to the valve block 2, and the valve block 2 is made of polytetrafluoroethylene or ultrahigh molecular weight polyethylene. The valve plate 3 is fixed to the end of the column 11 by bolts 9.

The above description is made for further details of the present invention with reference to the specific embodiments, and it should not be considered that the embodiments of the present invention are limited to these descriptions, and for those skilled in the art to which the present invention pertains, the simple replacement made without departing from the concept of the present invention should be considered as belonging to the protection scope of the present invention.

Claims

1. Liquid ring vacuum pump and liquid ring compressor valve block formula check valve, its characterized in that: the valve body (1) comprises an annular shell and a circular bottom plate coaxially arranged in the shell, the outer ring of the bottom plate is in sealing connection with the inner wall of the shell, a plurality of axial upright posts (11) and a plurality of axial ventilating through holes (10) are respectively and equally arranged on two small concentric circles on the inner side surface of the bottom plate, the annular valve plate (2) is sleeved on the outer side of a circle surrounded by the upright posts (11), when the annular valve plate (2) is attached to the surface of the bottom plate on the outer side of the upright posts (11), air flow can be prevented from flowing from the ventilating through holes (10), the valve plate (3) is arranged at the end part of the upright posts (11), a large ventilating hole (7) is arranged in the middle of the valve plate (3), a plurality of small ventilating holes (8) are equidistantly arranged on the valve plate (3) on the circle corresponding to the valve plate (2), the valve plate (2) is made of a nonmetal material which is light in weight, not easy to deform, corrosion-resistant and softer in texture relative to the metal valve body and the metal valve cover.

2. The liquid ring vacuum pump and liquid ring compressor valve plate check valve of claim 1, wherein: a plurality of supporting tables (12) are further arranged at the annular included angle between the inner wall of the shell and the inner side wall of the bottom plate in an equally-divided mode, the annular valve plate (2) is arranged between the supporting tables (12) and the upright post (11), and a gap is reserved between the outer edge of the valve plate (3) and the inner wall of the shell.

3. The liquid ring vacuum pump and liquid ring compressor valve plate check valve of claim 1 or 2, wherein: the valve plate (3) is detachably fixed at the end part of the upright post (11).

4. The liquid ring vacuum pump and liquid ring compressor valve plate check valve of claim 1 or 2, wherein: the valve plate (2) is made of polytetrafluoroethylene or ultra-high molecular weight polyethylene.

5. The liquid ring vacuum pump and liquid ring compressor valve plate check valve of claim 4, wherein: the valve plate (2) is internally provided with an annular reinforcing plate or an annular reinforcing net made of light alloy.