CN214887710U

CN214887710U - Corrosion-resistant pump cavity of vacuum pump

Info

Publication number: CN214887710U
Application number: CN202120834690.6U
Authority: CN
Inventors: 崔坤
Original assignee: Shandong Feinai Pump Industry Co ltd
Current assignee: Shandong Feinai Pump Industry Co ltd
Priority date: 2021-04-22
Filing date: 2021-04-22
Publication date: 2021-11-26
Anticipated expiration: 2031-04-22

Abstract

The utility model relates to a corrosion-resistant pump chamber of vacuum pump, which comprises a housin, be equipped with the pump chamber in the casing, the lower part all is equipped with the support boss on the inner wall of pump chamber, and the outside of supporting the boss is equipped with the support recess, and it has the graphite baffle to inlay in the support recess, is equipped with pump shaft perforation and air vent on the graphite baffle, and the pump chamber, be equipped with corrosion-resistant layer of moulding plastics on support boss and the support recess outer wall, is equipped with the anticreep recess of multichannel dovetail type one on the inner wall of pump chamber, and corrosion-resistant layer outer wall of moulding plastics is equipped with the protruding one of anticreep with anticreep recess complex dovetail type. The utility model discloses a set up in the pump chamber and support the boss and inlay the graphite baffle on supporting the boss, can cut apart into two to tertiary pump chamber to the pump chamber, then set up corrosion-resistant layer of moulding plastics on pump chamber, support boss and support recess outer wall, can not hinder two to guarantee the corrosion resistance of pump chamber under the condition of tertiary pump chamber internal pump rotor installation, can prevent corrosion-resistant layer of moulding plastics through anticreep recess and the protruding cooperation of anticreep in addition from droing.

Description

Corrosion-resistant pump cavity of vacuum pump

Technical Field

The utility model belongs to the technical field of vacuum pump chamber structure, concretely relates to corrosion-resistant pump chamber of vacuum pump.

Background

The vacuum pump is a device for vacuumizing, is usually used for vacuumizing gas, but is often used for vacuumizing corrosive gas when in use, so that a pump cavity of the vacuum pump is required to have certain corrosion resistance, the pump cavity of the vacuum pump is divided into a single-stage pump cavity and two-stage and three-stage pump cavities, a plurality of pump cavities are formed by separating the pump cavities through partition plates, and a corrosion-resistant pump cavity with composite requirements cannot be formed in the vacuum pump with the two-stage and three-stage pump cavities for conveniently installing a pump rotor.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a corrosion-resistant pump chamber of vacuum pump solves at present in the vacuum pump of two, tertiary pump chamber for the convenience install the pump rotor, just can't form the problem of the corrosion-resistant pump chamber of compound requirement.

The utility model relates to a corrosion-resistant pump chamber of vacuum pump, which comprises a housin, be equipped with the pump chamber in the casing, be equipped with the cooling chamber in the inner wall of casing, the cooling chamber is equipped with the cooling exit tube from top to bottom respectively and cools off into the pipe, the lower part all is equipped with the support boss on the inner wall of pump chamber, the outside of upper and lower support boss is equipped with the support recess, it has graphite baffle to inlay in the support recess of upper and lower both sides, also can fix graphite baffle on the support boss utilizing polytetrafluoroethylene screw, be equipped with pump shaft perforation and air vent on the graphite baffle, the pump chamber, be equipped with corrosion-resistant layer of moulding plastics on support boss and the support recess outer wall, corrosion-resistant layer of moulding plastics is PTFE or PEEK material, be equipped with the anticreep recess one of multichannel dovetail type on the inner wall of pump chamber, corrosion-resistant layer outer wall of moulding plastics is equipped with the anticreep protruding one with anticreep recess one complex dovetail type.

The inner wall of the pump cavity is provided with a plurality of dovetail anti-falling protrusions II, and the outer wall of the corrosion-resistant injection molding layer is provided with a dovetail anti-falling groove II matched with the dovetail anti-falling protrusions II. Further prevent that corrosion-resistant injection molding layer from droing.

And a cooling liquid cavity is arranged in the anti-falling bulge II, and a liquid channel communicated with the cooling liquid cavity is arranged on the shell. The cooling liquid can be attached to the corrosion-resistant injection molding layer as much as possible, the corrosion-resistant injection molding layer is cooled better, and the pump rotor is prevented from being interfered by deformation caused by high temperature.

The bottom of the outer side of the shell is fixed with a supporting leg. The installation is convenient to fix.

Compared with the prior art, the utility model has the advantages of:

through set up the support boss in the pump chamber and inlay the graphite baffle on the support boss, can cut apart into two to tertiary pump chamber to the pump chamber, then set up corrosion-resistant layer of moulding plastics on pump chamber, support boss and support recess outer wall, can not hinder the corrosion resistance of guaranteeing the pump chamber under the condition of two to tertiary pump chamber internal pump rotor installations, can prevent through the protruding cooperation of anticreep recess and anticreep in addition that corrosion-resistant layer of moulding plastics from droing.

Drawings

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

FIG. 2 is an enlarged schematic view of the structure at A in FIG. 1;

in the figure: 1. a housing; 2, cooling the cavity; 3. a liquid channel; 4. a cooling fluid chamber; 5. a second anti-drop bulge; 6. a corrosion-resistant injection molding layer; 7. supporting the boss; 8. cooling the inlet pipe; 9. a graphite separator; 10. a support groove; 11. the first anti-falling bulge is formed; 12. cooling out the pipe; 13. the supporting legs 14, the vent holes 15 and the pump shaft are perforated.

Detailed Description

The following describes the embodiments of the present invention in further detail with reference to the accompanying drawings.

As shown in fig. 1 to 2, the utility model discloses a corrosion-resistant pump chamber of vacuum pump, including casing 1, be equipped with the pump chamber in casing 1, be equipped with cooling chamber 2 in casing 1's the inner wall, cooling chamber 2 is equipped with cooling exit tube 12 and cooling inlet pipe 8 from top to bottom respectively, the lower part all is equipped with support boss 7 on the inner wall of pump chamber, the outside of upper and lower support boss 7 is equipped with support recess 10, it has graphite baffle 9 to inlay in the support recess 10 of upper and lower both sides, be equipped with pump shaft perforation 15 and air vent 14 on the graphite baffle 9, the pump chamber, be equipped with corrosion-resistant layer 6 of moulding plastics on support boss 7 and the support recess 10 outer wall, be equipped with the anticreep recess of multichannel dovetail on the inner wall of pump chamber one, corrosion-resistant layer 6 outer wall of moulding plastics is equipped with the anticreep protruding 11 of a complex dovetail of anticreep recess.

The inner wall of the pump cavity is provided with a plurality of dovetail-shaped anti-falling protrusions II 5, and the outer wall of the corrosion-resistant injection molding layer 6 is provided with dovetail-shaped anti-falling grooves II matched with the anti-falling protrusions II 5.

A cooling liquid cavity 4 is arranged in the anti-falling protrusion II 5, and a liquid channel 3 communicated with the cooling liquid cavity 4 is arranged on the shell 1.

The bottom of the outer side of the shell 1 is fixed with a supporting leg 13.

When installation pump shaft and pump rotor, can install the pump rotor of middle pump chamber on the pump shaft earlier, then put into the pump chamber, then put into graphite baffle 9 about the pump shaft on, then install the graphite baffle 9 of upper and lower place on supporting boss 7, then the pump rotor that the pump chamber corresponds about the pivot both ends are adorned, accomplish the installation, when the pump operation, the coolant liquid can advance pipe 8 entering cooling chamber 2 through the cooling, then get into coolant liquid chamber 4 through liquid channel 3, cool off pump chamber and corrosion-resistant layer 6 of moulding plastics as far as, corrosion-resistant layer 6 of moulding plastics is through the protruding 11 of anticreep and the protruding two 5 fine drop preventions of anticreep.

To sum up, the utility model discloses a set up the support boss in the pump chamber and inlay the graphite baffle on supporting the boss, can cut apart into two to the tertiary pump chamber to the pump chamber, then set up corrosion-resistant layer of moulding plastics on pump chamber, support boss and support recess outer wall, can not hinder two corrosion resistance of guaranteeing the pump chamber under the condition of tertiary pump chamber internal pump rotor installation, can prevent corrosion-resistant layer of moulding plastics through anticreep recess and the protruding cooperation of anticreep in addition and drop.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

In the description of the present invention, the terms "inside", "outside", "longitudinal", "lateral", "up", "down", "top", "bottom", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for convenience of description of the present invention rather than requiring the present invention to be constructed and operated in a specific orientation, and thus should not be construed as limiting the present invention.

Claims

1. The utility model provides a corrosion-resistant pump chamber of vacuum pump, includes casing (1), is equipped with the pump chamber in casing (1), is equipped with cooling chamber (2) in the inner wall of casing (1), and cooling chamber (2) are equipped with cooling exit tube (12) and cooling respectively from top to bottom and advance pipe (8), its characterized in that: lower part all is equipped with support boss (7) on the inner wall of pump chamber, the outside of upper and lower support boss (7) is equipped with support recess (10), it has graphite baffle (9) to inlay in support recess (10) of upper and lower both sides, be equipped with pump shaft perforation (15) and air vent (14) on graphite baffle (9), the pump chamber, be equipped with corrosion-resistant layer (6) of moulding plastics on support boss (7) and support recess (10) outer wall, be equipped with the anticreep recess of multichannel dovetail type one on the inner wall of pump chamber, corrosion-resistant layer (6) outer wall of moulding plastics is equipped with the anticreep arch one (11) with anticreep recess complex dovetail type.

2. The vacuum pump corrosion-resistant pump chamber of claim 1, wherein: be equipped with the bellied two (5) of anticreep of multichannel dovetail on the inner wall of pump chamber, be equipped with on the outer wall on corrosion-resistant layer of moulding plastics (6) with the anticreep of the bellied two (5) complex dovetail anticreep recess two of anticreep.

3. A vacuum pump corrosion-resistant pump chamber according to claim 2, wherein: be equipped with coolant liquid chamber (4) in the protruding two (5) of anticreep, be equipped with liquid way (3) of intercommunication coolant liquid chamber (4) on casing (1).

4. A vacuum pump corrosion-resistant pump chamber according to claim 3, wherein: the bottom of the outer side of the shell (1) is fixed with a supporting leg (13).