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Suction and exhaust valve assembly of a reciprocating vacuum pump

A technology of suction and exhaust, vacuum pump, applied in the direction of variable capacity pump parts, pump components, pumps, etc., can solve the problems of different installation methods of suction valve and exhaust valve, complicated installation, etc., to achieve convenient installation and corrosion resistance Good, improve the effect of corrosion resistance

Active Publication Date: 2019-03-08
MADEBAO VACUUM EQUIP GRP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, such a structure still cannot avoid the parts of the suction valve and the exhaust valve being corroded due to contact with gas, which affects the practical life of the suction valve and the exhaust valve, and the installation methods of the suction valve and the exhaust valve are different , the installation is more complicated

Method used

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  • Suction and exhaust valve assembly of a reciprocating vacuum pump
  • Suction and exhaust valve assembly of a reciprocating vacuum pump
  • Suction and exhaust valve assembly of a reciprocating vacuum pump

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] The suction and discharge valve assembly of the reciprocating vacuum pump includes a valve seat 1 and a suction and discharge valve 3 .

[0028] Specifically, as figure 1 and figure 2 As shown, the valve seat 1 includes a base body 1a and a lining 1b. Such as image 3 and Figure 4 As shown, the base 1a is made of metal material, and the part of the base 1a corresponding to the pump body of the vacuum pump has several connecting holes 1f for connecting the valve seat 1 and the pump body. The part of the base body 1a corresponding to the pump chamber of the vacuum pump has accommodating grooves 1c which are respectively recessed relative to the upper and lower surfaces of the base body 1a, and the accommodating groove 1c has an accommodating hole 1d penetrating through the upper and lower surfaces of the base body 1a. The non-metallic material fills the receiving groove 1c and the receiving hole 1d to form the liner 1b. The non-metallic material can be corrosion-res...

Embodiment 2

[0034] The technical solution in this embodiment is basically the same as that in the first embodiment, except that in this embodiment, the number of suction and exhaust valves 3 installed on the valve seat 1 is one.

Embodiment 3

[0036] The technical solution in this embodiment is basically the same as that in the first embodiment, the difference is that in this embodiment, there is only one air hole 2 .

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Abstract

The invention provides an air suction and release valve component of a reciprocating vacuum pump and belongs to the technical field of vacuum pumps. The air suction and release valve component of the reciprocating vacuum pump comprises a valve seat and vent holes, the valve seat comprises a basal body made of a metal material, lining parts made of a nonmetal material are arranged inside the basal body and provided with mounting holes, the vent holes are positioned in the lining parts, an air valve stem passes through every mounting hole and is fixed through an air valve nut, a valve plate and an air valve spring sleeve every air valve stem, the valve plates made of a nonmetal material are capable of blocking the vent holes under the elastic action of the air valve springs, a valve stem bushing made of a nonmetal material wraps the outer surface of every air valve stem, a nut bushing made of a nonmetal material wraps the outer surface of every air valve nut, and the valve stem bushings and the nut bushings abut against the lining parts on the upper and lower surfaces of the valve seat when the air valve stems are connected with the air valve nuts. The air suction and release valve component of the reciprocating vacuum pump solves the problem of complicacy in mounting of an air suction valve and an air release valve.

Description

technical field [0001] The invention belongs to the technical field of vacuum pumps, and relates to a reciprocating vacuum pump, in particular to a suction and exhaust valve assembly of the reciprocating vacuum pump. Background technique [0002] The reciprocating vacuum pump relies on the reciprocating movement of the piston in the cylinder to inhale and discharge the gas. The reciprocating vacuum pump sucks the medium into the negative pressure chamber through the suction valve, and discharges the medium from the high pressure chamber through the exhaust valve. [0003] For example, Chinese patent [application number 201120223968.2; authorized announcement number CN202149006U] discloses a corrosion-resistant vertical reciprocating vacuum pump suction valve, which includes a valve body, a valve seat, an exhaust valve and a suction valve, and the valve seat is located on the valve body. There are suction channel, suction valve, exhaust channel and exhaust valve on the valve ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F04B39/10F04B37/14F16K51/00
CPCF04B37/14F04B39/10F04B39/1066F16K51/00
Inventor 王于祥
Owner MADEBAO VACUUM EQUIP GRP