High temperature harmful gas slide bar seal arrangement
Technical field
The utility model relates to the gas seal mechanical field, the seal arrangement of particularly a kind of slide bar anti-high temperature poisonous gas leakage in three dimensional motion.
Background technique
In recent years, along with developing rapidly of China's chemical industry, the hazardous chemical kind, the quantity that relate in each links such as producing, use, store, transport, discard constantly increase, toxic substance leakage accident quantity also sharply rises, and causes great harm for the country and people masses lives and properties and ecotope.
In refuse incinerator firing chamber when work, produce a large amount of high temperature harmful gases, for the health of protecting the operator and on every side ecotope avoid polluting, the equipment that must prevent is when work, the interior high temperature poison gas of stove is to external leakage.
Fire grate in the refuse incinerator firing chamber is general to divide three sections.From top to bottom the discarded rubbish of various processing is put on the fire grate from fuel feeding mouth, by heat, technology such as burning, residue treatment.The motion of fire grate is the main shaft rotation that cam is arranged by the outer motor drives of body of heater, and again by the break-in campaign of slide bar, the mode that makes fire grate produce slowly, be interrupted, shake travels forward, and pending rubbish is fully burnt.
The model utility content
The purpose of this utility model is by a kind of high temperature harmful gas slide bar seal arrangement, reaches the high temperature harmful gas that produces in the waste incineration process and is sealed in the stove, after handling by gas purification, discharges atmosphere again.
The technical solution of the utility model: a kind of high temperature harmful gas slide bar seal arrangement, form by the slide bar of doing three dimensional motion and the sealing gland ring member that matches, floating-ring seal assembly, sealing case assembly, flange assembly, bracing structure assembly, ceramic insulation cotton, silicane rubber plate, larynx hoop, sealing gasket etc.
In the utility model, described sealing gland ring member, form by two groups or more the energy slide relative and the module of compensation mutually, by the extension spring effect, can satisfy slide bar when X, Y, three direction associated movements of Z, sealing gland ring member endoporus is close to the axle surface of slide bar, stops the leakage of high temperature harmful gas by the sliding pole axis surface, and can have automatic compensation function after the endoporus wearing and tearing.
In the utility model, described floating-ring seal assembly, a plurality of small coil springs by self act on (inside and outside flexible moving enough spaces that all has) on the floating ring, apply axial force for again the sealing gland ring member by floating ring, reach between the sealing gland ring member plane and and sealing case component joint face between the plane sealing function.
In the utility model, described sealing case assembly, in inner chamber, install sealing gland ring member, the floating-ring seal assembly, the outer ring forms a soft junction structure connection set by ceramic insulation cotton, silicane rubber plate, larynx hoop, bracing structure assembly and flange assembly, has solved multidirectional sealing problem and heat-insulating problem that slide bar produces when three dimensional motion.
In the utility model, described flange assembly except above-mentioned effect, also by the planar high temperature pad, has solved the plane sealing problem between apparatus casing and the flange assembly.
In the utility model, described bracing structure assembly, owing to adopted unconventional connecting means, after special technique is handled, the sealing case assembly that can connect plays the function of low-angle universal joint, make pull bar with the sealing case assembly, and sealing gland ring member, the floating-ring seal assembly of sealing case assembly inner chamber do multidirectional motion with slide bar.
In the utility model; described silicane rubber plate and larynx hoop are adpting flange assembly and the requisite parts of sealing case assembly; fixedly ceramic insulation is cotton and seal leakage from the high temperature harmful gas in the ceramic insulation cotton to have played protection, reaches the purpose that is flexible coupling between flange assembly and the sealing case assembly again.
The beneficial effect that the utlity model has: high temperature harmful gas slide bar seal arrangement described in the utility model, owing to adopted sealing gland ring member with unique design structure, floating-ring seal assembly, bracing structure assembly etc., make slide bar when X, Y, the motion of Z three-dimensional, all can prevent the high temperature poisonous gas leakage, and between sealing case assembly and flange assembly, fill the ceramic insulation cotton, have good effect of heat insulation.By the larynx hoop silicane rubber plate is being held tightly respectively on two assemblies on the cylindrical.This soft junction structure is connected and has played good sealing effect when device is done three dimensional motion.
Description of drawings
Fig. 1 is the plan view of high temperature harmful gas seal arrangement described in the utility model;
Fig. 2 is the side view of high temperature harmful gas seal arrangement described in the utility model.
[figure number is to as directed]
1 flange assembly, 2 packing rings
4 cotter pins of 3 screw rods
5 nuts, 6 larynx hoops
7 larynx hoops, 8 silicane rubber plates
The cotton 10 sealing case assemblies of 9 ceramic insulations
11 springs, 12 bracing structure assemblies
13 glands, 14 screws
15 connecting plates, 16 floating-ring seal assemblies
18 extension springs of 17 sealing gland ring member
19 screws, 20 sealing gaskets
21 slide bars, 22 hexagon socket cap head screws
23 connecting plates
Embodiment
Further understand and understanding for making structure characteristic of the present utility model and the effect reached had, cooperate detailed explanation, be described as follows in order to preferred embodiment and accompanying drawing:
As Fig. 1, shown in Figure 2, high temperature harmful gas slide bar seal arrangement described in the utility model comprises the slide bar 21 of doing three dimensional motion and the sealed member that matches.Sealed member mainly comprises sealing gland ring member 17, floating-ring seal assembly 16, sealing case assembly 10, silicane rubber plate 8, ceramic insulation cotton 9, larynx hoop (6,7), sealing gasket 20, flange assembly 1 and bracing structure assembly 12.
Sealing gland ring member 17 is made up of the module of two groups or more slide relative and compensation mutually, and by extension spring 18 sealing gland ring endoporus is close on 21 surfaces of slide bar.In the utility model preferred embodiment, sealing gland ring member 17 is made up of the module of two groups or more energy slide relative and changing of the relative positions compensation mutually, that is to say that slide bar 21 is when three dimensional motion all around, having part high temperature toxic gas leaks out, but sealing gland ring member 17 hugs on 21 surfaces of slide bar owing to having by slide relative and mutual changing of the relative positions compensation, stop of the leakage of high temperature harmful gas by the sliding pole axis surface, and can after the endoporus wearing and tearing, have automatic compensation function, thereby reach seal action.
Floating-ring seal assembly 16 acts on (inside and outside flexible moving enough spaces that all has) on the floating ring by a plurality of small coil springs 11 of self, apply axial force for again sealing gland ring member 17 by floating ring, reach between sealing gland ring member 17 planes and and sealing case assembly 10 faying surfaces between the plane sealing function.
Sealing case assembly 10 is installed in the outer surface of sealing gland ring member 17, sealing case assembly 10 is fixedlyed connected with gland 13 by hexagon socket cap head screw 14, sealing gland ring member 17, floating-ring seal assembly 16 are installed in the inner chamber of sealing case assembly 10, the outer ring forms a soft junction structure connection set by ceramic insulation cotton 9, silicane rubber plate 8, larynx hoop (6,7), bracing structure assembly 12 with flange assembly 1, has solved multidirectional sealing problem and heat-insulating problem that slide bar 21 produces when three dimensional motion.
Owing to be filled with the ceramic insulation cotton in the sealing case assembly 10, can reach effect of heat insulation.The outer surface of sealing case assembly 10 is fixed silicane rubber plate 8 by larynx hoop 6, thereby also reaches well heat insulation and seal action.Simultaneously, sealing case assembly 10 also by larynx hoop 7 sealing gland ring member 17 installing and locating in the inner chamber of sealing case 10.
Flange assembly 1 also by the planar high temperature pad, has solved the plane sealing problem between apparatus casing and the flange assembly 1 except above-mentioned effect.
Flange assembly 1 is fixed on outer surface to silicane rubber plate 8 by larynx hoop 6, and fixedly ceramic insulation cotton 9 and sealing reach the purpose that is flexible coupling between flange assembly 1 and the sealing case assembly 10 again from the leakage of the interior high temperature harmful gas of ceramic insulation cotton 9 to have played protection.
One end of bracing structure assembly 12 is fixed in sealing case assembly 10, and the other end is connected with flange assembly 1 by screw rod.Screw rod lower end nut 5 is by cotter pin 4 location, and screw rod upper end bolt is connected with pull bar 12 by packing ring 2.Bracing structure assembly 12 is owing to adopted unconventional connecting means, after special technique is handled, the sealing case assembly 10 that can connect plays the function of low-angle universal joint, make pull bar with sealing case assembly 10, and sealing gland ring member 17, the floating-ring seal assembly 16 of sealing case assembly 10 inner chambers do multidirectional motion with slide bar 21.For the ease of the dismounting of flange assembly 1, flange assembly 1 is installed on the seal arrangement body by hexagon socket cap head screw and sealing gasket 20.
Hence one can see that, high temperature harmful gas slide bar seal arrangement described in the utility model, owing to adopted the mode that is flexible coupling of sealing gland ring member with unique design structure, bracing structure assembly, sealing case, make slide bar radially or axial runout the time, all can prevent the high temperature poisonous gas leakage, and inside the sealing case assembly, be provided with the ceramic insulation cotton, have good effect of heat insulation.
In sum, it only is preferred embodiment of the present utility model, be not to be used for limiting the scope that the utility model is implemented, all equalizations of doing according to the described shape of the utility model claim scope, structure, feature and spirit change and modify, and all should be included in the claim scope of the present utility model.