CN111623123A - Poppet valve device for heat accumulating type incinerator - Google Patents
Poppet valve device for heat accumulating type incinerator Download PDFInfo
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- CN111623123A CN111623123A CN202010512733.9A CN202010512733A CN111623123A CN 111623123 A CN111623123 A CN 111623123A CN 202010512733 A CN202010512733 A CN 202010512733A CN 111623123 A CN111623123 A CN 111623123A
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- 238000007789 sealing Methods 0.000 claims abstract description 85
- 238000003825 pressing Methods 0.000 claims abstract description 37
- 238000012856 packing Methods 0.000 claims abstract description 21
- 239000004570 mortar (masonry) Substances 0.000 claims abstract description 17
- 230000001172 regenerating effect Effects 0.000 claims abstract description 14
- 239000004810 polytetrafluoroethylene Substances 0.000 claims abstract description 13
- 229920001343 polytetrafluoroethylene Polymers 0.000 claims abstract description 13
- 230000003014 reinforcing effect Effects 0.000 claims abstract description 9
- 238000009413 insulation Methods 0.000 claims abstract description 8
- 230000002787 reinforcement Effects 0.000 claims abstract description 8
- 238000003466 welding Methods 0.000 claims description 8
- 229910000831 Steel Inorganic materials 0.000 claims description 5
- 230000001681 protective effect Effects 0.000 claims description 5
- 239000010959 steel Substances 0.000 claims description 5
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 4
- 239000000741 silica gel Substances 0.000 claims description 4
- 229910002027 silica gel Inorganic materials 0.000 claims description 4
- 239000000945 filler Substances 0.000 claims description 2
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 239000000463 material Substances 0.000 abstract description 2
- 239000007789 gas Substances 0.000 description 7
- 238000000034 method Methods 0.000 description 6
- 241001125879 Gobio Species 0.000 description 4
- 238000009825 accumulation Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 239000010815 organic waste Substances 0.000 description 3
- 239000002912 waste gas Substances 0.000 description 3
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 2
- 239000000956 alloy Substances 0.000 description 2
- 238000002485 combustion reaction Methods 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 239000003546 flue gas Substances 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 239000000779 smoke Substances 0.000 description 2
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000005489 elastic deformation Effects 0.000 description 1
- 238000005338 heat storage Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000000670 limiting effect Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 239000012855 volatile organic compound Substances 0.000 description 1
- 239000002918 waste heat Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Images
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
- F16K1/32—Details
- F16K1/34—Cutting-off parts, e.g. valve members, seats
- F16K1/36—Valve members
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K25/00—Details relating to contact between valve members and seats
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K25/00—Details relating to contact between valve members and seats
- F16K25/005—Particular materials for seats or closure elements
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K27/00—Construction of housing; Use of materials therefor
- F16K27/12—Covers for housings
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/12—Actuating devices; Operating means; Releasing devices actuated by fluid
- F16K31/122—Actuating devices; Operating means; Releasing devices actuated by fluid the fluid acting on a piston
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K41/00—Spindle sealings
- F16K41/02—Spindle sealings with stuffing-box ; Sealing rings
- F16K41/04—Spindle sealings with stuffing-box ; Sealing rings with at least one ring of rubber or like material between spindle and housing
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Lift Valve (AREA)
Abstract
The invention relates to a poppet valve device for a regenerative incinerator, which comprises a valve cover, a poppet valve rod, a poppet valve shaft head, a centering device and a sealing device, wherein the valve cover is arranged on the poppet valve rod; the valve cover mainly comprises a sealing valve plate, a reinforcing valve plate, a ring rib, a longitudinal rib, a shaft sleeve and a valve plate fastener; the valve rod of the lift valve mainly comprises a valve rod, a valve rod flange, a head dismounting flange, a valve rod flange fastener and a heat insulation block; the centering device mainly comprises a centering piece base, a centering piece bracket, a centering piece pressing plate, a pressing plate fastener and a bottom plate fastener; the sealing device mainly comprises a pressing plate fastener, a pressing plate, a packing flange, a seat plate flange, a seat mortar body, a sealing element, a sealing plate flange, a sealing plate fastener, a sleeve and a sleeve reinforcement. The invention has the beneficial effects that: the device comprises an inner seal and an outer seal, namely the seal between a valve cover and a valve seat and the seal between a sealing plate flange and a valve rod; adopt PTFE packing to seal between shrouding flange and the valve rod, the difficult adhesion that takes place of PTFE material frictional resistance for a short time.
Description
Technical Field
The invention relates to the fields of electric power, petrifaction, VOCs treatment and the like, in particular to a poppet valve device for a regenerative incinerator.
Background
The regenerative incinerator is an organic waste gas treatment device, and organic waste gas can be incinerated and decomposed into clean flue gas such as carbon dioxide, water vapor and the like through the device. The device comprises a combustion chamber, a heat accumulation chamber and the like. Wherein, the combustion chamber provides the place for the burning decomposition of waste gas, and the heat accumulation cell has then ensured the waste heat recovery of preheating of organic waste gas and clean flue gas. The bottom of the heat storage small chamber is provided with a waste gas inlet and a clean smoke exhaust port, and a lift valve communicated with the gas inlet and exhaust ports is opened and closed alternately to ensure the inflow of waste gas and the outflow of clean smoke. The sealing performance of the poppet valve is a key factor influencing continuous and stable operation of equipment.
Poppet valves are generally composed of a valve cover, a valve rod, a driving device and the like, wherein factors such as flatness of the valve cover and coaxiality of the valve rod and a valve seat can significantly affect the sealing performance of the poppet valve. When the size of the poppet valve cover is small, the flatness of the valve cover is relatively easy to control, but when the size of the valve cover is large, the flatness of the thin plate is difficult to guarantee. In the past, the valve cover of the lift valve is mostly formed by welding a large steel plate and a small steel plate, and because the valve plate is thin, welding deformation is easy to cause, the hidden trouble of poor sealing exists, and continuous and stable operation of equipment is easily influenced. Also, when the poppet valve stroke is long, the coaxiality of the valve stem and the valve seat is difficult to ensure when the poppet valve reciprocates due to the long length of the valve stem.
Aiming at the situation that the flatness of a valve cover of a large-size poppet valve and the coaxiality of a valve rod are difficult to ensure, a poppet valve device for a regenerative incinerator needs to be provided.
Disclosure of Invention
The invention aims to overcome the defects in the prior art, provides a poppet valve device for a regenerative incinerator, and solves the problems that the flatness of a valve cover and the coaxiality of a valve rod and a valve seat of the conventional large-size poppet valve are difficult to ensure.
The lift valve device for the heat accumulating type incinerator comprises a valve cover, a lift valve rod, a lift valve shaft head, a centering device and a sealing device;
the valve cover mainly comprises a sealing valve plate, a reinforcing valve plate, a ring rib, a longitudinal rib, a shaft sleeve and a valve plate fastener; the central hole of the sealing valve plate is provided with a shaft sleeve, and the reinforced valve plate is welded on the outer side of the shaft sleeve; the annular ribs and the longitudinal ribs are welded on the surface of the reinforced valve cover; the sealing valve plate and the reinforcing valve plate are connected and fixed through a valve plate fastener; a labyrinth sealing element is arranged between the valve cover and the valve seat;
the valve rod of the lift valve mainly comprises a valve rod, a valve rod flange, a head dismounting flange, a valve rod flange fastener and a heat insulation block; the lift valve shaft head mainly comprises a shaft head, a shaft head gasket, a shaft head nut and a shaft head fastening nut; the valve rod is connected with the shaft head plug in a welding way; the valve rod flange is welded at the end part of the valve rod, and the heat insulation block, the valve rod flange and the head dismounting flange are fixedly connected through a valve rod flange fastener; the valve cover penetrates through the shaft head and is fixed through a shaft head gasket, a shaft head nut and a shaft head fastening nut;
the centering device mainly comprises a centering piece base, a centering piece bracket, a centering piece pressing plate, a pressing plate fastener and a bottom plate fastener; the centering piece base is fixedly connected with the centering piece bracket through a bottom plate fastener; the centering piece is arranged on the centering piece base, the centering piece pressing plate is arranged above the centering piece, and the centering piece base, the centering piece and the centering piece pressing plate are fixedly connected through pressing plate fasteners; the valve rod penetrates through the centering piece;
the sealing device mainly comprises a pressing plate fastener, a pressing plate, a packing flange, a seat plate flange, a seat mortar body, a sealing element, a sealing plate flange, a sealing plate fastener, a sleeve and a sleeve reinforcement; the upper end and the lower end of the sleeve are respectively provided with a seat plate flange and a sealing plate flange; seat mortar bodies are respectively welded on the seat plate flange and the seal plate flange, and the sealing elements are arranged in the seat mortar bodies; the packing flange is formed by splicing two semicircular annular flanges, the pressing plate is positioned on the packing flange, the packing flange is fixedly connected with the pressing plate, the seat plate flange and the seat mortar body through pressing plate fasteners, and the packing flange is fixedly connected with the pressing plate, the closing plate flange and the seat mortar body through pressing plate fasteners; the sealing plate flange, the sleeve and the sleeve reinforcement are mutually welded and fixed; the sealing plate flange and the poppet valve air inlet and exhaust pipe flange are fixedly connected through a sealing plate fastener.
Preferably, the method comprises the following steps: the sealing valve plate is a round steel plate, and a through hole is formed in the center of the sealing valve plate.
Preferably, the method comprises the following steps: the centering piece is three-layer PTFE shaft sleeve, and each layer of PTFE shaft sleeve is formed by splicing two semicircular rings.
Preferably, the method comprises the following steps: the sealing member is a PTFE packing, and the inner diameter of the sealing member is smaller than the diameter of the valve rod.
Preferably, the method comprises the following steps: the labyrinth sealing element is concave high temperature resistant silica gel.
Preferably, the method comprises the following steps: the poppet valve rod outside is equipped with the safety cover, and the safety cover is located shrouding flange below, and poppet valve rod below is equipped with the cylinder.
The invention has the beneficial effects that:
1. the sealing effect is good. The device comprises an inner seal and an outer seal, namely the seal between the valve cover and the valve seat and the seal between the sealing plate flange and the valve rod. The sealing between the valve cover and the valve seat is made of concave high-temperature-resistant silica gel, so that labyrinth sealing is formed, and gas leakage is effectively prevented. Adopt PTFE packing to seal between shrouding flange and the valve rod, the little difficult emergence adhesion of PTFE material frictional resistance, sealed effect is good.
2. The processing and assembling rate is high. The device adopts a large number of bolt connection forms, reduces the welding workload, and simultaneously improves the processing and manufacturing efficiency and the assembly rate because the sealing valve plate has no welding deformation and the valve plate is processed without leveling. Simultaneously, centering piece and filler flange all design into detachable structure, facilitate for the maintenance of part is changed.
3. The structure is stable. The valve cover of the device is provided with a certain number of annular ribs and longitudinal ribs, so that the valve plate can have higher strength and rigidity under the condition of thinner thickness. Meanwhile, the centering device and the sealing device have certain limiting effect on the valve rod, and the valve rod cannot be eccentric when being longer.
4. The service life is long. The valve cover and the valve rod are made of alloy materials, so that the valve cover and the valve rod are corrosion-resistant and long in service life.
Drawings
Fig. 1 is a schematic structural view of a poppet valve device for a regenerative incinerator (poppet valve closed state);
fig. 2 is a schematic structural view of a poppet valve device for a regenerative incinerator (poppet valve open state);
FIG. 3 is a detailed view of the centering device (wherein, a is a view of the installation position of the centering device, and b is an enlarged view of the centering device in the view a);
FIG. 4 is a detailed view of the valve cover (wherein FIG. a is a plan view of the valve cover and FIG. b is an elevation view of the valve cover);
FIG. 5 is a detailed view of a poppet head;
FIG. 6 is a schematic view of the poppet valve stem and spindle head attachment (wherein FIG. a is a detailed poppet valve stem view and FIG. b is a cross-sectional view A-A of FIG. a);
fig. 7 is a detailed view of the sealing device (wherein, fig. a is an elevation view of the sealing device, and fig. b is a plan view of the sealing device).
Description of reference numerals: 1-a centering piece base; 2-centering piece holder; 3-centering member; 4-centering member pressing plate; 5-platen fasteners; 6-a floor fastener; 7-a sealing valve plate; 8-a reinforcing valve plate; 9-ring rib; 10-longitudinal ribs; 11-a shaft sleeve; 12-valve plate fasteners; 13-a shaft head; 14-a head gasket; 15-spindle nose nut; 16-fastening the nut with the shaft head; 17-a valve stem; 18-valve stem flange; 19-a nose flange; 20-valve stem flange fastener; 21-a heat insulation block; 22-platen fasteners; 23-a platen; 24-a packing flange; 25-seat plate flange; 26-base mortar; 27-a seal; 28-closing plate flange; 29-closure plate fasteners; 30-a sleeve; 31-sleeve reinforcement; 32-a protective cover; 33-a cylinder; 34-a labyrinth seal; 35-valve cover; 36-a centering device; 37-sealing means.
Detailed Description
The present invention will be further described with reference to the following examples. The following examples are set forth merely to aid in the understanding of the invention. It should be noted that, for those skilled in the art, it is possible to make various improvements and modifications to the present invention without departing from the principle of the present invention, and those improvements and modifications also fall within the scope of the claims of the present invention.
As shown in fig. 1 to 7, the poppet valve device for a regenerative incinerator includes a valve cover 35, a poppet valve stem, a poppet head, a centering device 36, and a sealing device 37. In particular to an air inlet and an air outlet for closing a heat accumulation chamber in a heat accumulation type incinerator. The cylinder 33 is a power source of the whole device, and drives the valve rod 17, the sealing valve plate 7 and the components thereof to reciprocate up and down. The valve rod 17 is limited through the centering piece 3, and eccentric leakage and vibration are effectively prevented. The centering member 3 and the sealing member 27 are designed to be detachable, so that the maintenance and replacement of the components are facilitated. The labyrinth seal 34 is a concave high temperature resistant rubber ring, forming a labyrinth seal structure to prevent gas leakage. The device is easy to process and manufacture, high in assembly rate, good in sealing performance and stable in structure. The valve cover and the valve rod of the lift valve are made of alloy materials, and the corrosion resistance is good. The device has good sealing performance and provides guarantee for continuous and stable operation of equipment.
The valve cover 35 consists of a sealing valve plate 7, a reinforcing valve plate 8, a ring rib 9, a longitudinal rib 10, a shaft sleeve 11 and a valve plate fastener 12; the sealing valve plate 7 is a circular steel plate with the diameter of 1200mm, the diameter of a central opening of 200mm and the thickness of 4 mm; a shaft sleeve 11 is arranged at the central opening of the sealing valve plate 7; the thickness of the reinforced valve plate 8 is about 6mm, the diameter is 800mm, and the reinforced valve plate is welded on the outer side of the shaft sleeve 11; the annular ribs 9 and the longitudinal ribs 10 are welded on the surface of the reinforced valve cover 8; the sealing valve plate 7 and the reinforcing valve plate 8 are fixedly connected through a valve plate fastener 12, so that welding deformation is avoided, and the flatness of the sealing valve plate is ensured; meanwhile, the valve cover is thick in the middle and thin in the periphery, so that the periphery of the sealing valve cover generates certain elastic deformation to play a sealing role when the poppet valve is closed.
The valve rod of the lift valve consists of a valve rod 17, a valve rod flange 18, a head-dismounting flange 19, a valve rod flange fastener 20 and a heat insulation block 21; the lifting valve spindle head consists of a spindle head 13, a spindle head gasket 14, a spindle head nut 15 and a spindle head fastening nut 16; the valve rod 17 is connected with the shaft head 13 in a plug welding way; the valve rod flange 18 is welded at the end part of the valve rod 17, and the heat insulation block 21, the valve rod flange 18 and the head dismounting flange 19 are fixedly connected through a valve rod flange fastener 20; the bonnet 35 passes through the gudgeon 13 and is secured by the gudgeon washer 14, the gudgeon nut 15 and the gudgeon fastening nut 16.
The centering device 36 consists of a centering piece base 1, a centering piece bracket 2, a centering piece 3, a centering piece pressing plate 4, a pressing plate fastener 5 and a bottom plate fastener 6; the centering piece base 1 and the centering piece bracket 2 are fixedly connected through a bottom plate fastener 6; the centering piece 3 is arranged on the centering piece base 1, the centering piece 3 is three layers of PTFE shaft sleeves, each layer of PTFE shaft sleeve is formed by splicing two semicircular rings, and the splicing structure provides convenience for dismounting and replacing the centering piece; the centering piece pressing plate 4 is arranged above the centering piece 3, and the centering piece base 1, the centering piece 3 and the centering piece pressing plate 4 are fixedly connected through a pressing plate fastening piece 5; the valve stem 17 passes through the centering member 3.
The sealing device 37 consists of a pressure plate fastener 22, a pressure plate 23, a packing flange 24, a seat plate flange 25, a seat mortar body 26, a sealing element 27, a sealing plate flange 28, a sealing plate fastener 29, a sleeve 30 and a sleeve reinforcement 31; the upper end and the lower end of the sleeve 30 are respectively provided with a seat plate flange 25 and a sealing plate flange 28; the seat plate flange 25 and the seal plate flange 28 are respectively welded with a seat mortar body 26, a sealing element 27 is arranged inside the seat mortar body 26, the sealing element 27 is a PTFE packing, and the inner diameter of the sealing element 27 is slightly smaller than the diameter of the valve rod 17, so that the sealing effect is achieved; the packing flange 24 is formed by splicing two semicircular annular flanges, the pressing plate 23 is positioned on the packing flange 24, the packing flange 24 is fixedly connected with the pressing plate 23, the seat plate flange 25 and the seat mortar 26 through the pressing plate fasteners 22, the packing flange 24 is fixedly connected with the pressing plate 23, the closing plate flange 28 and the seat mortar 26 through the pressing plate fasteners 22, and the packing flange is convenient to detach and maintain and replace; the sealing plate flange 28, the sleeve 30 and the sleeve reinforcement 31 are welded and fixed with each other; the sealing plate flange 28 and the poppet valve intake and exhaust pipe flange are fixedly connected through a sealing plate fastener 29.
A labyrinth sealing element 34 is adopted between a valve cover 35 of the poppet valve and a valve seat, and the labyrinth sealing element is concave high-temperature-resistant silica gel, so that gas leakage is effectively prevented.
The outer side of the valve rod of the poppet valve is provided with a protective cover 32, the protective cover 32 is positioned below the sealing plate flange 28, and the lower part of the valve rod of the poppet valve is provided with an air cylinder 33.
Claims (6)
1. A poppet valve device for a regenerative incinerator is characterized in that: comprises a valve cover (35), a poppet valve rod, a poppet valve shaft head, a centering device (36) and a sealing device (37);
the valve cover (35) mainly comprises a sealing valve plate (7), a reinforcing valve plate (8), a ring rib (9), a longitudinal rib (10), a shaft sleeve (11) and a valve plate fastener (12); a shaft sleeve (11) is arranged at a central opening of the sealing valve plate (7), and the reinforcing valve plate (8) is welded on the outer side of the shaft sleeve (11); the annular ribs (9) and the longitudinal ribs (10) are welded on the surface of the reinforced valve cover (8); the sealing valve plate (7) and the reinforcing valve plate (8) are fixedly connected through a valve plate fastener (12); a labyrinth seal (34) is arranged between the valve cover (35) and the valve seat;
the poppet valve rod mainly comprises a valve rod (17), a valve rod flange (18), a head-dismounting flange (19), a valve rod flange fastener (20) and a heat insulation block (21); the lift valve shaft head mainly comprises a shaft head (13), a shaft head gasket (14), a shaft head nut (15) and a shaft head fastening nut (16); the valve rod (17) is connected with the shaft head (13) in a plug welding way; the valve rod flange (18) is welded at the end part of the valve rod (17), and the heat insulation block (21), the valve rod flange (18) and the head dismounting flange (19) are fixedly connected through a valve rod flange fastener (20); the valve cover (35) penetrates through the shaft head (13) and is fixed through a shaft head gasket (14), a shaft head nut (15) and a shaft head fastening nut (16);
the centering device (36) mainly comprises a centering piece base (1), a centering piece bracket (2), a centering piece (3), a centering piece pressing plate (4), a pressing plate fastening piece (5) and a bottom plate fastening piece (6); the centering piece base (1) is fixedly connected with the centering piece bracket (2) through a bottom plate fastener (6); the centering piece (3) is arranged on the centering piece base (1), the centering piece pressing plate (4) is arranged above the centering piece (3), and the centering piece base (1), the centering piece (3) and the centering piece pressing plate (4) are fixedly connected through a pressing plate fastening piece (5); the valve rod (17) penetrates through the centering piece (3);
the sealing device (37) mainly comprises a pressure plate fastener (22), a pressure plate (23), a filler flange (24), a seat plate flange (25), a seat mortar body (26), a sealing element (27), a sealing plate flange (28), a sealing plate fastener (29), a sleeve (30) and a sleeve reinforcement (31); the upper end and the lower end of the sleeve (30) are respectively provided with a seat plate flange (25) and a sealing plate flange (28); seat mortar bodies (26) are respectively welded on the seat plate flange (25) and the seal plate flange (28), and sealing elements (27) are arranged inside the seat mortar bodies (26); the packing flange (24) is formed by splicing two semicircular annular flanges, the pressing plate (23) is positioned on the packing flange (24), the pressing plate (23), the seat plate flange (25) and the seat mortar body (26) are fixedly connected through the pressing plate fastening piece (22), and the packing flange (24), the pressing plate (23), the closing plate flange (28) and the seat mortar body (26) are fixedly connected through the pressing plate fastening piece (22); the sealing plate flange (28), the sleeve (30) and the sleeve reinforcement (31) are welded and fixed with each other; the sealing plate flange (28) is fixedly connected with the inlet and outlet pipe flange of the lift valve through a sealing plate fastener (29).
2. The poppet valve apparatus for a regenerative incinerator according to claim 1, wherein: the sealing valve plate (7) is a round steel plate, and a through hole is formed in the center of the sealing valve plate.
3. The poppet valve apparatus for a regenerative incinerator according to claim 1, wherein: the centering piece (3) is three layers of PTFE shaft sleeves, and each layer of PTFE shaft sleeve is formed by splicing two semicircular rings.
4. The poppet valve apparatus for a regenerative incinerator according to claim 1, wherein: the sealing element (27) is a PTFE packing, and the inner diameter of the sealing element (27) is smaller than the diameter of the valve rod (17).
5. The poppet valve apparatus for a regenerative incinerator according to claim 1, wherein: the labyrinth seal (34) is concave high temperature resistant silica gel.
6. The poppet valve apparatus for a regenerative incinerator according to claim 1, wherein: a protective cover (32) is arranged on the outer side of the poppet valve rod, the protective cover (32) is located below the sealing plate flange (28), and an air cylinder (33) is arranged below the poppet valve rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010512733.9A CN111623123A (en) | 2020-06-08 | 2020-06-08 | Poppet valve device for heat accumulating type incinerator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010512733.9A CN111623123A (en) | 2020-06-08 | 2020-06-08 | Poppet valve device for heat accumulating type incinerator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111623123A true CN111623123A (en) | 2020-09-04 |
Family
ID=72270308
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010512733.9A Pending CN111623123A (en) | 2020-06-08 | 2020-06-08 | Poppet valve device for heat accumulating type incinerator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111623123A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112161067A (en) * | 2020-10-13 | 2021-01-01 | 安徽天之都环保科技股份有限公司 | Poppet valve device applied in corrosive gas |
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2020
- 2020-06-08 CN CN202010512733.9A patent/CN111623123A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112161067A (en) * | 2020-10-13 | 2021-01-01 | 安徽天之都环保科技股份有限公司 | Poppet valve device applied in corrosive gas |
| CN112161067B (en) * | 2020-10-13 | 2024-05-17 | 安徽天之都环保科技股份有限公司 | Poppet valve device for use in corrosive gas |
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