CN1438441A - Pneumatic super-thin high-temp. disconnecting-link valve - Google Patents

Abstract

The invention provides a kind of pneumatic ultrathin high temperature gate valve, single flank is sealed, the gate slot connects with ultrathin whole high temperature valve at the outlet, it is very light, the materials are little, it can be used in high temperature not more than 700 deg.C, it doesn't affect the seal performance, even the gate slot is plugged.

Description

Pneumatic ultrathin high temperature disconnecting link valve

The present invention relates to improved valve on a kind of industrial pipeline, be that a kind of type body approaches and the valve of ability≤700 ℃ high temperature liquid, particularly single side face seals the gate valve of lock groove capable of washing, valve on the existing pipeline is as slim pulp stock valve, Parallel Slide Valves, because of rubber packing material ability temperature liquid more than 120 ℃ not, can only limit below 120 ℃ and use: as common gate valve on the market, as residue is arranged in the pipeline, filled up the lock groove, flashboard can not seal.More, wasted a large amount of metals and structural material and man-hour, and influenced the traffic under the pipeline because valve body and flashboard is thick and heavy can not be installed on suspended piping, as a lot of support of essential design is installed.

The objective of the invention is:

A kind of pneumatic ultrathin high temperature disconnecting link valve is provided, the single side face sealing, the equal logical super-thin integral High temperature valve of lock groove with inlet, it is not only in light weight, material uses few, and under≤700 ℃ of high-temperature conditions, use, not filled in because of the lock groove influences sealability.

Task of the present invention is that following mode is finished:

A kind of pneumatic ultrathin high temperature disconnecting link valve, it is characterized in that pneumatic suction port, Pneumatic actuator, piston head, lateral pin, lifting bar is formed Pneumatic power elevator apparatus, the valve thin type integralization, by the dewax precision casting, sealing surface is made the slightly-inclined face, exotic materials such as built-up welding stainless steel or cemented carbide, one-sided sealing surface, and another side lock groove communicates with the inlet bore, makes uniform spacing lug in the valve body, can decide flashboard and seal ring coupling, residue is discharged, flashboard with rigid material also built-up welding and sealing surface mutually the material of idol realize sealing through grinding, reach required sealing load, gate valve go up sealing when work standard-sized sheet with the anti-conical surface seal of valve rod, opening process sealing at ordinary times is by embedding valve body filler copper sheet, and bag high temperature wires graphite asbestos packing is realized.

Using method of the present invention is exchanged and is installed lightly, material has only former same model gate valve 1/3 when the example structure that describes in detail below adopting, part processing is simpler, reaches the purpose of slim high temperature resistant liquid, below with reference to accompanying drawing the utility model is described in further detail.

Figure one is the longitudinal sectional drawing of a kind of concrete structure of the present invention.

With reference to figure one by pneumatic suction port 1, Pneumatic actuator 2, piston head 3, lateral pin 4, lifting bar 5, form Pneumatic power elevator apparatus, by bolt 9, bullet pad 6, plain cushion 10 is installed on the medium-height trestle 15, lifting bar connects flashboard 18 for 5 times and joins fixing by living, when Pneumatic actuator 2, lifting thereupon during one driving flashboard 18, Gland 11 hooks medium-height trestle 15 opposite side grooves nut 7 bullet pads with the bedding and padding circle by bolt 12, plain cushion 8 presses high temperature resistant filler 13,14 make filler act on flashboard 18 at medium-height trestle caulking groove and Gland can lifting and unlikely seepage, medium-height trestle 15 is installed on the valve body 20, by bolt, the bullet pad, plain cushion 16 is installed, seal with refractory metal wave mode pad 17 between medium-height trestle 15 and the valve body 20, sealing contacting point built-up welding corrosion-resistant metal materials on medium-height trestle 15 and the valve rod 5, in the guide pad 19 double as stiffening rib built-up welding in the valve body 20 with the flashboard same material, uniform flowing medium importer, residue is cleared up well, seal ring also built-up welding and flashboard sealing surface same material (stainless steel or cemented carbide) is finish-machined to slightly-inclined face and flashboard 18 mountain rigid materials at circumferential sealing position built-up welding stainless steel or cemented carbide, idol is ground and is formed mutually, reaches sealing function.

Claims (1)

1. A kind of pneumatic ultrathin high temperature disconnecting link valve, it is characterized in that pneumatic suction port, Pneumatic actuator, piston head, lateral pin, lifting bar is formed Pneumatic power elevator apparatus, the valve thin type integralization, by the dewax precision casting, sealing surface is made the slightly-inclined face, exotic materials such as built-up welding stainless steel or cemented carbide, one-sided sealing surface, and another side lock groove communicates with the inlet bore, makes uniform spacing lug in the valve body, can decide flashboard and seal ring coupling, residue is discharged, flashboard with rigid material also built-up welding and sealing surface mutually the material of idol realize sealing through grinding, reach required sealing load, gate valve go up sealing when work standard-sized sheet with the anti-conical surface seal of valve rod, opening process sealing at ordinary times is by embedding valve body filler copper sheet, and bag high temperature wires graphite asbestos packing is realized.

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