CN215059430U - Sealing structure of cut-off valve for combustible nonstandard gas burner - Google Patents
Sealing structure of cut-off valve for combustible nonstandard gas burner Download PDFInfo
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- CN215059430U CN215059430U CN202120320749.XU CN202120320749U CN215059430U CN 215059430 U CN215059430 U CN 215059430U CN 202120320749 U CN202120320749 U CN 202120320749U CN 215059430 U CN215059430 U CN 215059430U
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Abstract
The utility model provides a sealing structure of a cut-off valve for a combustible nonstandard gas burner, the structure is simple and reliable, the sealing surface is not easily covered by impurities, the replacement is convenient, the sealing contact area is large, the sealing surface is not easily damaged, the alignment is accurate, the sealing is more reliable and durable, and the device comprises a sealing seat mounting seat arranged in a cut-off valve shell, the sealing seat is arranged on the sealing seat mounting seat and also comprises a sealing cover component arranged corresponding to the sealing seat, the sealing cover component comprises a sealing cover mounting seat, a sealing ring is sleeved on the sealing cover mounting seat, a sealing end cover is arranged on the sealing ring and exposes the outer side surface of the sealing ring, the sealing cover is characterized in that the sealing ring is fixed on the sealing cover mounting seat through a bolt by the sealing end cover, the outer side surface of the sealing ring is an inverted conical surface from bottom to top, and the sealing cover assembly can be matched and sealed with the sealing seat.
Description
Technical Field
The utility model relates to a combustor technical field, concretely relates to a seal structure for combustible nonstandard gas burner's trip valve.
Background
In order to respond to the national calls for cost saving, consumption reduction and circular economy, waste heat utilization is carried out on various industrial combustible low-heat-value waste gases, and the emission of the waste gases reaches the environmental protection standard, in particular to the development and development of various combustible non-standard gas burners such as coke oven crude gas, blast furnace gas, coal bed and petrochemical gas, producer gas, converter gas, methane, hydrogen, purge gas, calcium carbide furnace tail gas, mixed gas and the like, the waste heat utilization system is widely used for various industrial boilers, power station boilers, organic heat carrier furnaces, heating furnaces, annealing furnaces, kilns, specially designed industrial furnaces, lithium bromide direct-fired machines and other thermal equipment in various industries, and good economic benefits and social benefits are obtained for wide use units.
Different from city gas, natural gas and the like, some non-standard gases are not subjected to any purification treatment, and some gases contain harmful components such as naphthalene, benzene, tar, dust, hydrogen sulfide and the like through primary purification treatment. Some manufacturers use imported burners, and the matched valves are butterfly valves and the like, but the imported burners cannot be normally used due to high failure rate. Because tar, naphthalene, hydrogen sulfide, dust and the like are sticky and easy to adhere to the surface and have corrosive impurity effects, the burner and the valve bank are extremely easy to damage, especially the key parts such as valves fail to function, some parts are blocked and can not act, some sealing surfaces are covered by impurities, can not be sealed, detected, leaked, detected, can not pass through and can not be opened, and some parts can still generate deflagration even if being opened reluctantly, the obstacles are extremely fatal to various flammable and explosive gas burners, and not only influence production but also have potential safety hazards.
SUMMERY OF THE UTILITY MODEL
In view of the above problem, the utility model provides a seal structure for combustible nonstandard gas burner's trip valve, its simple structure is reliable, and sealed face is difficult for being covered by impurity, convenient the change, and sealed area of contact is big, and sealed face is difficult for damaging and counterpoint the accuracy, guarantees to seal more reliably durable.
The technical scheme is as follows: the utility model provides a seal structure of trip valve for flammable nonstandard gas combustion ware, is including setting up the seal receptacle mount pad in the trip valve casing, the seal receptacle sets up on the seal receptacle mount pad, still including corresponding the seal cover subassembly that the seal receptacle set up, its characterized in that: the sealing cover assembly comprises a sealing cover mounting seat, a sealing ring is sleeved on the sealing cover mounting seat, a sealing end cover is arranged on the sealing ring and is exposed out of the outer side face of the sealing ring, the sealing end cover is fixed on the sealing cover mounting seat through a bolt, the outer side face of the sealing ring is an inverted conical face from bottom to top, and the sealing cover assembly can be matched and sealed with the sealing seat.
Further, the seal ring includes an elastomeric body.
Furthermore, the inside of elasticity main part is provided with metal support, it is equipped with the opening to correspond on the elasticity main part metal support.
Further, the metal support member comprises any one of a metal O-ring, a U-shaped open metal ring, a coil spring, and a plurality of stacked tapered open metal rings.
Further, the seal receptacle is connected with the seal receptacle mounting seat in a welding manner.
Further, the seal seat is locked on the seal seat mounting seat through a bolt.
Furthermore, the periphery of the seal seat corresponds the seal seat mounting seat is provided with a seal ring mounting groove, and an O-shaped seal ring is arranged in the seal ring mounting groove.
Furthermore, be provided with the oiling mouth on the seal receptacle, be equipped with on the inside wall of seal receptacle and hold the oil groove, it is equipped with on the oil groove to hold the oil-out, the oiling mouth is connected to through the oil circuit the oil-out.
Furthermore, a heat source interface is arranged on the sealing seat, a heat tracing groove is arranged on the inner side wall of the sealing seat, the heat tracing groove is communicated with the heat source interface, and a cover ring of the heat tracing groove is covered and welded on the heat tracing groove.
The utility model discloses a seal structure for trip valve of flammable non-standard gas burner, the sealing washer adopts the conical surface and seals the seat cooperation, can carry out fine direction in the sealing process, sealed area of contact is big, sealed face is difficult for damaging and counterpoint accurate, guarantee to seal more reliably durable, when being used for containing impurity composition medium very much, it is difficult for attaching the jail to combine sealed face coating lubricating grease impurity, sealed face is under high temperature state all the time, the impurity that attaches to sealed face is difficult for hardening firm, in the process of sealed closure, realize normal sealing performance after the impurity is cleared up; the sealing seat is provided with an oil containing groove, lubricating grease is filled in the oil containing groove, so that a layer of lubricating grease is coated on the sealing surface of the sealing seat and the sealing surface of the conical seal, and impurities in a medium are prevented from being firmly attached to the sealing surface to influence the seal; the heat tracing groove is arranged on the sealing seat, steam or heat medium is introduced, the sealing surface of the sealing seat can be always in a higher temperature state, and impurities in the medium are prevented from being firmly attached to the sealing surface of the sealing seat to influence sealing.
Drawings
Fig. 1 is a schematic view of a sealing structure of a cut-off valve for a combustible non-standard gas burner according to the present invention;
fig. 2 is a schematic view of a seal ring according to a first embodiment of the present invention;
fig. 3 is a schematic view of a seal ring according to a second embodiment of the present invention;
fig. 4 is a schematic view of a seal ring according to a third embodiment of the present invention;
fig. 5 is a schematic view of a seal ring according to a fourth embodiment of the present invention;
fig. 6 is a schematic view of a seal holder according to an embodiment of the present invention;
fig. 7 is a schematic view of a seal holder according to another embodiment of the present invention.
Detailed Description
The technical solution of the present invention will be described clearly and completely with reference to the accompanying drawings, it should be noted that the drawings provided in the present embodiment illustrate only the basic idea of the present invention in a schematic manner, and only the components related to the present invention are shown in the drawings rather than being drawn according to the number, shape and size of the components in actual implementation, and the form, quantity and proportion of each component may be changed at will in actual implementation, and the component layout form may be more complicated.
See fig. 1-7, the utility model discloses a seal structure of trip valve for flammable non-standard gas combustion ware, including setting up seal receptacle mount pad 2 in trip valve casing 1, seal receptacle 3 sets up on seal receptacle mount pad 2, still including the seal cover subassembly that corresponds seal receptacle 3 and set up, seal cover subassembly is including sealed lid mount pad 4, the cover is equipped with sealing washer 5 on sealed lid mount pad 4, 6 lid dress of seal cover are on sealing washer 5 and expose sealing washer 5's lateral surface, seal cover 5 fixes sealing washer 5 on sealed lid mount pad 2 through the bolt, the lateral surface of sealing washer 5 is the conical surface of inversion from supreme bottom, seal cover subassembly can be sealed with 3 cooperations of seal receptacle, seal cover subassembly joinable actuating mechanism drives, such as common cylinder, the pneumatic cylinder, it is electronic etc.
Specifically, the seal ring 5 includes an elastic body 501, which may be made of teflon or other additive, flexible graphite, rubber, or fluorinated materials.
In an embodiment of the present invention, the elastic body 501 is provided with a metal supporting member 502 inside, and the elastic body 501 is provided with an opening 503 corresponding to the metal supporting member 502.
The utility model discloses in, specifically give 4 kinds of metal support's embodiment cases:
in the embodiment of fig. 2, the metal support is a metal O-ring, which may be made by rolling stainless steel, duplex steel, non-ferrous metal, with a hollow opening;
in the embodiment of fig. 3, the metal support is a U-shaped open metal ring, which may be made of stainless steel, duplex steel, spring steel;
in the embodiment of fig. 4, the metal support is a coil spring, which may be made of stainless steel, duplex steel, spring steel;
in the embodiment of fig. 5, the metal support is a stack of tapered split metal rings, which may be made of stainless steel, duplex steel, spring steel.
The metal support piece prevents the sealing from generating plastic deformation and sealing failure, after the metal support piece is added in the sealing device, the elasticity of the sealing and the recovery performance of a sealing surface are ensured, the conical surface of the sealing ring is ensured to be more matched with the conical surface of the sealing seat, the sealing pressure on the upper part of the sealing is the maximum, and the reliability and the durability of the sealing device are improved.
The utility model discloses an in the embodiment, seal receptacle 3 and seal receptacle mount pad 2 welded connection, welding back seal receptacle 3 is fixed mutually with seal receptacle mount pad 2, adopts the all-welded structural design, has ensured sealed reliability, avoids the possibility that gas leakage takes place, and safe effect is good.
In another embodiment of the present invention, the detachable sealing seat 3 is fastened on the sealing seat mounting seat 2 by a bolt or a bolt and a pressing ring, the sealing seat mounting seat 2 is provided with a sealing ring mounting groove 301 corresponding to the periphery of the sealing seat 3, and an O-ring 7 is provided in the sealing ring mounting groove.
In the valve, seal receptacle and sealing washer are vulnerable parts, when especially being used for containing the impurity composition medium, the seal receptacle changes with sealed the damage, many valve sealing face damage back, the valve is whole to be scrapped and produces a large amount of wastes, and the valve quantity that needs to be changed every year because of sealed inefficacy is huge very much in many trades, for the realization with the existing or used casting in market or forge the general replacement of valve and exchange, and design the utility model discloses a trip valve adopts and can dismantle seal receptacle and sealing washer, after the valve seal inefficacy, only need change seal receptacle and sealed, and the valve seal function can resume, can practice thrift a large amount of expenses and change
In an embodiment of the present invention, the sealing seat 3 is provided with an oil filling port 302, the inner side wall of the sealing seat 302 is provided with an oil containing groove 303, the oil containing groove 303 is provided with an oil outlet 304, and the oil filling port 302 is connected to the oil outlet 304 through an oil path; the oil containing groove is formed in the sealing seat, lubricating grease is filled in the oil containing groove, one layer of lubricating grease is coated on the sealing surface of the sealing seat and the sealing surface of the conical seal, and the situation that impurities in a medium are firmly attached to the sealing surface to affect sealing is avoided.
The utility model discloses an embodiment, be equipped with heat source interface 305 on the seal receptacle 3, be equipped with heat tracing groove 306 on the inside wall of seal receptacle 3, heat tracing groove 306 is linked together with heat source interface 305, and the lid dress has heat tracing groove lid circle 307 on the heat tracing groove 306, sets up heat tracing groove on the seal receptacle, lets in steam or heat medium, can realize that the sealed face of seal receptacle is in higher temperature state all the time, prevents that the impurity in the medium from firmly attaching to the sealed face of seal receptacle and influencing sealedly.
The utility model discloses a seal structure for trip valve of flammable non-standard gas combustion ware, the sealing washer adopts conical surface and seal receptacle cooperation, can carry out fine direction at sealed in-process, sealed area of contact is big, sealed face is difficult for damaging and counterpoint the accuracy, guarantee to seal more reliably durable, be used for when containing the impurity composition medium very much, it is difficult for attaching the jail to combine sealed face coating lubricating grease impurity, sealed face is in under the high temperature condition all the time, it is firm to adhere to the difficult sclerosis of impurity on sealed face, at sealed closed in-process, impurity is realized normal sealing performance after being cleared up.
It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein.
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.
Claims (9)
1. The utility model provides a seal structure of trip valve for flammable nonstandard gas combustion ware, is including setting up the seal receptacle mount pad in the trip valve casing, and the seal receptacle setting is on the seal receptacle mount pad, still including corresponding the seal cover subassembly that the seal receptacle set up, its characterized in that: the sealing cover assembly comprises a sealing cover mounting seat, a sealing ring is sleeved on the sealing cover mounting seat, a sealing end cover is arranged on the sealing ring and is exposed out of the outer side face of the sealing ring, the sealing end cover is fixed on the sealing cover mounting seat through a bolt, the outer side face of the sealing ring is an inverted conical face from bottom to top, and the sealing cover assembly can be matched and sealed with the sealing seat.
2. A sealing structure for a shut-off valve of a combustible non-standard gas burner as claimed in claim 1, wherein the seal ring comprises an elastic body.
3. A sealing structure for a shut valve of a combustible non-standard gas burner according to claim 2, characterized in that: the inside of elasticity main part is provided with metal support spare, it is equipped with the opening to correspond on the elasticity main part metal support spare.
4. A sealing structure for a shut valve of a combustible non-standard gas burner according to claim 3, characterized in that: the metal support member comprises any one of a metal O-shaped ring, a U-shaped opening metal ring, a spiral spring and a plurality of stacked conical opening metal rings.
5. A sealing structure for a shut valve of a combustible non-standard gas burner according to claim 1, characterized in that: the sealing seat is connected with the sealing seat mounting seat in a welding mode.
6. A sealing structure for a shut valve of a combustible non-standard gas burner according to claim 1, characterized in that: the sealing seat is locked on the sealing seat mounting seat through a bolt.
7. A sealing structure for a shut valve of a combustible non-standard gas burner according to claim 1, characterized in that: the periphery of seal receptacle corresponds the seal receptacle mount pad is equipped with the sealing washer mounting groove, be provided with O type sealing washer in the sealing washer mounting groove.
8. A sealing structure for a shut valve of a combustible non-standard gas burner according to claim 1, characterized in that: the oil filling device is characterized in that an oil filling port is formed in the sealing seat, an oil containing groove is formed in the inner side wall of the sealing seat, an oil outlet is formed in the oil containing groove, and the oil filling port is connected to the oil outlet through an oil way.
9. A sealing structure for a shut valve of a combustible non-standard gas burner according to claim 1, characterized in that: the sealing seat is provided with a heat source interface, the inner side wall of the sealing seat is provided with a heat tracing groove, the heat tracing groove is communicated with the heat source interface, and the heat tracing groove is covered and welded with a heat tracing groove cover ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120320749.XU CN215059430U (en) | 2021-02-04 | 2021-02-04 | Sealing structure of cut-off valve for combustible nonstandard gas burner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120320749.XU CN215059430U (en) | 2021-02-04 | 2021-02-04 | Sealing structure of cut-off valve for combustible nonstandard gas burner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215059430U true CN215059430U (en) | 2021-12-07 |
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ID=79259189
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120320749.XU Active CN215059430U (en) | 2021-02-04 | 2021-02-04 | Sealing structure of cut-off valve for combustible nonstandard gas burner |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215059430U (en) |
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2021
- 2021-02-04 CN CN202120320749.XU patent/CN215059430U/en active Active
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