CN110425713A - The installation method of eccentric reducer when different medium pipeline reducing diameter - Google Patents
The installation method of eccentric reducer when different medium pipeline reducing diameter Download PDFInfo
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- CN110425713A CN110425713A CN201910637961.6A CN201910637961A CN110425713A CN 110425713 A CN110425713 A CN 110425713A CN 201910637961 A CN201910637961 A CN 201910637961A CN 110425713 A CN110425713 A CN 110425713A
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- air hose
- plate
- eccentric reducer
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/02—Ducting arrangements
- F24F13/0245—Manufacturing or assembly of air ducts; Methods therefor
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/02—Ducting arrangements
- F24F13/0254—Ducting arrangements characterised by their mounting means, e.g. supports
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- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
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- Sink And Installation For Waste Water (AREA)
Abstract
The invention discloses a kind of installation methods of eccentric reducer when different medium pipeline reducing diameter, belong to building field, its key points of the technical solution are that include cutting, it is assembled, reinforce, the installation of eccentric reducer, production branch pipe, installation suspension and support, connection air hose, installation telescopic joint.Invention achieves that can reduce windbag possible effect occur, it is applied in construction and installation.
Description
Technical field
The present invention relates to building work installing area, more specifically, it to be related to bias when a kind of different medium pipeline reducing diameter different
The installation method of diameter pipe.
Background technique
Air-conditioning system is by indoor unit and outdoor unit at being separately mounted to indoor and outdoors, centre passes through pipeline and electricity
The air regulator that line connects.It is the corresponding outer machine of an interior machine, it and package AC plant are opposite, entirety
Formula air conditioner is all-in-one machine, point of no inside and outside machine.Air-conditioner system is exactly that air conditioner is divided into indoor units and outdoor unit two
Part is placed in the bigger compressor of noise, aerofoil fan etc. in outdoor unit；Electric control circuit component and interior
The interior such as heat exchanger is indispensable to be partially installed in indoor units.
With the increase of the large-scale public places engineering such as such as subway engineering, building engineering, split-type air conditioner unit is also wide
General use.But in existing air-conditioning system installation method, the installation of air hose leans on the experience of construction personnel mostly to sentence
Disconnected installation site often will appear especially in some air-conditioning systems for being related to eccentric reducer and occur windbag in air hose
May, this allows for air-conditioning system and is difficult to reach scheduled effect, needs maintenance of constantly doing over again.
Summary of the invention
It is eccentric when in view of the deficiencies of the prior art, the present invention intends to provide a kind of different medium pipeline reducing diameter
The installation method of reduced pipe realizes by the installation site of the eccentric reducer under limitation different condition and reduces windbag production
Raw possibility, enables air-conditioning system or the stable work of ventilating system, reduces repair rate.
To achieve the above object, the present invention provides the following technical scheme that bias is different when a kind of different medium pipeline reducing diameter
The installation method of diameter pipe, comprising the following steps:
Step 1: air duct board cutting；
1) cutting of rectangular plate uses platform-type cutting machine, and the cutting line of plate is answered straight；Cut surface and plate face at an angle of 90,
Dimension board catercorner length error after cutting should be less than 3mm；
2) plate step line is made after the completion of dimension board cutting, cutting machine blade adjusts depth of cut according to plate thickness, makes plate
Material glass reinforced plastic protective layer of the other side in cutting will not be damaged；
3) cutting of reduced pipe plate is marked on plate and is cut after cutting line with portable cutters；
Step 2: air hose is assembled；
1) preparation of special glue；
2) air hose is assembled；
(1) air hose bottom plate is first put in group to shelve, applies at the side plate step and is assembled in bottom plate edge after special glue, and with
Floor length direction dislocation 100mm, last covered top plate, be aligned it with bottom plate,；
(2) the air hose diagonal line difference for tying up completion should not exceed 3mm, and internal diameter and drawing specification deviation should be less than 1mm, outside
Diameter deviation should be less than 2mm；
(3) air hose appearance is answered bright and clean smooth, and crest line is straight；The remaining glue or connecting sewing cleared up not in time in bonding process is not straight
Place should be polished with angle grinder immediately after strapping of dismantling and be modified；Aluminum foil special adhesive tape is finally pasted at air hose rib makes it more
It is beautiful secured；
Step 3: air hose is reinforced；
Air hose of the wind pressure greater than 600Pa is reinforced according to the big side size of air hose；The smoke exhaust pipe of thickness 18mm, big side are greater than
It is reinforced when 1250mm；Thickness is greater than the warm ventilation pipe of 25mm, and big side should be reinforced when being greater than 1600mm；
Step 4: reducer pipe production；
The reducer pipe of rectangular air duct has single side bias and eccentric two kinds two-sided；The angle of reducer pipe single side variable diameter is preferably less than 30 °,
The angle of two-sided variable diameter is preferably less than 60 °；The production of variable diameter air hose is identical as straight air hose production method, wherein one side or three face blast pipe boards
Material is inclined-plane；The length of variable diameter air hose cannot be less than the difference that major part long side subtracts microcephaly's long side；
Select the mounting means of eccentric reducer are as follows: when pumped (conveying) medium is liquid, then use the installation side of the flat eccentric reducer in bottom
Formula；When pumped (conveying) medium is gaseous state, then using the mounting means for pushing up flat eccentric reducer；When pumped (conveying) medium is solidliquid mixture
When, using the mounting means of the flat eccentric reducer in bottom, when pumped (conveying) medium is gas-liquid mixture, using the flat eccentric reducer in top
Mounting means；
Step 5: 5) branch pipe makes；
According to design size, the interface of branch wind pipe is cut on main air hose；In downwind, 45 ° of channelization angles are set, channelization angle
Length cannot be less than the one third of branch wind pipe width；The opening size connecting with branch pipe upper and lower plates is that branch wind pipe inner wall size adds
Big 6mm, the opening of left and right plate junction are the size that branch wind pipe outer wall adds channelization angle；Branch wind pipe is connected with main air hose upper and lower
Plate is cut into step shape, and left and right plate does not cut step shape；
Step 6: suspension and support production and installation；
(1) suspension and support is fixed with expansion bolt method and welding, and what is applied in this engineering method is expansion bolt method；
(2) airduct bracket uses dimension fashioned iron according to air hose size；Full tooth sunpender is suitably cut according to the installed height mark of air hose
It takes；Rose cannot be too long, is subject to screw thread end without departing from 10mm；
(3) air hose pipeline is longer, position of marshalling, first that both ends suspension and support is good and sound when installing suspension and support, then using its as
Benchmark finds out the absolute altitude of intermediate support with bracing wire method and position is installed；
Step 7: the connection of air hose；
The connection of air hose is by the way of mismatch bonding, identical special glue when using with air hose assembly；It will with scraper when connection
Thermal insulation material on two sections of air hose lateral connection faces scrapes off 2-3 ㎜, fills on air hose lateral connection face and mismatch step line specially
With glue, two sections of air hoses to be connected are close to guarantee it is straight up and down, keep it is longitudinally coaxial transversely and horizontally；It will be squeezed on joint face
Glue out is cleaned out in time；
Step 8: air hose telescopic joint fabrication and installation；
Air hose, which is horizontally mounted, should be arranged a telescopic joint when length often reaches 30m, the long 400mm of telescopic joint, and inner edge size compares air hose
The big 3 ~ 4mm of outside size, the TEF foam seal item of telescopic joint and air hose central filler 3mm thickness；
Step 9: airduct component installation；
1) both ends of air-valve, plenum chamber, silencer are fabricated to plug-in type, the outer diameter of air-valve bell and spigot is equal to air hose internal diameter, inserts
Enter length 50mm, is fixed using self-tapping screw；
2) according to air ports size, the cutting openings on air hose are bonded with trunnion；Soft section is covered on the outside of trunnion, Thin Stainless Steel is used
Plate is pushed down, and self-tapping screw is fixed.
By using above-mentioned technical proposal, when pumped (conveying) medium is liquid, then the mounting means of the flat eccentric reducer in bottom is used；
When pumped (conveying) medium is gaseous state, then using the mounting means for pushing up flat eccentric reducer；When pumped (conveying) medium is solidliquid mixture, adopt
With the mounting means of the flat eccentric reducer in bottom, when pumped (conveying) medium is gas-liquid mixture, using the installation for pushing up flat eccentric reducer
Mode.Can reduce the probability that air bag or water pocket generate in this way, simultaneously because air hose is using after the time of one end, inside can
Can descend slowly and lightly into stone or other solid sundries, through the invention disclosed in technical solution enable to air-conditioning system steady
Fixed operation, reduces repair rate.
Preferable: in the step 1, corner not equal to 90 °, when scribing line should first calculate corner size, guarantee that plate is spelled
Connect quality.
By using above-mentioned technical proposal,.
It is preferable: in the step 1, before making plate stepped line, to be scraped the insulating layer outside step line with scraper
It goes, step should ensure that 90 ° of right angles, width are plate thickness, cut surface even uniform.
It by using above-mentioned technical proposal, enables to cutting process more stable, reduces insulating layer to cutting process
Interference, while cutting planes even uniform is enabled to, so that the assembled process of subsequent air hose is simpler.
It is preferable: in the step 2, in air hose assembly step when plate adhesion, firmly to squeeze, more inside and outside wall
Remaining glue is squeezed out and is cleaned out in time；Assembled good air hose should be tied up securely in time, and four corners are protected with angle steel.
By using above-mentioned technical proposal, enables to air hose stable and completed by assembly, so that the air hose knot after assembly
Structure is stablized, and has longer service life.
Preferable: in the step 3, reinforcement measure includes setting support column, pastes stiffener and paste glass fibre
Cloth；Support column is the reinforcing bar of the ㎜ of Φ >=10, and steel bar sleeve uses flame-proof PVC plastic tube, uses hot galvanizing pad outside reinforced steel
Circle and nut, are secured with nuts on the upper and lower plates of air hose, and reinforced steel applies antirust paint two degrees, and support column is set by 1300mm spacing
It sets；When inner bracing piece fastens, support rod must be straightened, and reach the state of stress；Stiffener makes of identical air hose, and width is
40mm is arranged at air hose interior angle, using dedicated glue sticking；Width need to also be pasted on the bonding wire between air hose by reinforcing air hose
Two layers of 50mm glass fabric are enhanced.
By using above-mentioned technical proposal, the fixation for enabling to air hose more stable by reinforcement measure, so that work
The stability of process is improved.
It is preferable: in the step 6, fixed bracket should be set when the master of horizontal suspension, dry-air blast length of tube are more than 20m,
Each system is no less than 1.
By using above-mentioned technical proposal, for longer air hose, wind can be further improved by the way that fixed bracket is arranged
Stability when pipe works.
Preferable: in the step 8, size dimension should increase inner support among the telescopic joint greater than 1600mm and be added
Gu.
By using above-mentioned technical proposal, telescopic joint biggish for volume enables to stretch by the reinforcing of inner support
The more stable work of casing coupling, improves stability when work.
It is preferable: in the step 9, when length of throat is greater than 500mm, independent suspension and support should be set.
By using above-mentioned technical proposal, when installing to longer trunnion, the suspension and support being independently arranged can make
The more stable connection of trunnion is obtained, so that the course of work of air hose is more stable.
In conclusion the present invention has the advantages that compared with the prior art
1. can allow construction personnel that can change bias for different situations by the restriction to eccentric reducer installation site
The mounting means of reducer pipe reduces the probability that windbag or water pocket occur, reduces repair rate；
2. construction machinery is few, working procedure is simple, auxiliary material dosage is few, occupied area is small, short construction period, since this air hose is
Flangeless conjunction can save a large amount of engineering material, such as angle steel, padding, bolt, welding rod, rivet, oxygen, acetylene.
Specific embodiment
Embodiment: the installation method of eccentric reducer when a kind of different medium pipeline reducing diameter, the cutting of (one) air duct board
1) cutting of rectangular plate should use platform-type cutting machine, and the cutting line of plate is answered straight；Cut surface and plate face are in 90 °
Angle, the dimension board catercorner length error after cutting should be controlled in 2mm.
2) plate step line being made after the completion of dimension board cutting, cutting machine blade adjusts depth of cut according to plate thickness,
Plate glass reinforced plastic protective layer of the other side in cutting is set not to be damaged.The insulating layer outside step line is scraped off with scraper,
Step should ensure that 90 ° of right angles, width are plate thickness, cut surface even uniform.
3) cutting of reduced pipe plate should be marked on plate and be cut after cutting line with portable cutters.It is not equal to
90 ° of corner, when scribing line, should first calculate corner size, guarantee board material splice quality.
(2) air hose is assembled
1) preparation and application of special glue
(1) special-purpose adhesive is made of pulvis and liquor, is prepared at the scene by manufacturing firm's specification.To guarantee the equal of special glue
Even property, it is necessary to be stirred using electric blender, the special glue after stirring will slightly mobility be advisable.
(2) special-purpose adhesive has the different presetting periods under different environment temperatures, when environment temperature is lower than 5 DEG C
When, special-purpose adhesive curing time is more slow, should take it is appropriate heat measure, enter using hair dryer be blown or using electricity
Warm wind baking.
2) air hose is assembled
(1) air hose bottom plate is first put in group to shelve, applies at the side plate step and is assembled in bottom plate edge after special glue, and with
Floor length direction dislocation 100mm, last covered top plate are aligned it with bottom plate.When plate adhesion, firmly to squeeze,
Surplus glue is squeezed out and is cleaned out in time inside and outside wall.Assembled good air hose should be tied up securely in time, four corner angle steel
Protection.
(2) the air hose diagonal line difference for tying up completion should not exceed 3mm, and internal diameter and drawing specification deviation should be less than
1mm, outside diameter tolerance should be less than 2mm.
(3) air hose appearance is answered bright and clean smooth, and crest line is straight.The remaining glue or connecting sewing cleared up not in time in bonding process are uneven
Straight place should be polished with angle grinder immediately after strapping of dismantling and be modified.Aluminum foil special adhesive tape is finally pasted at air hose rib makes it more
Add beautiful secured.
3) air hose is reinforced
Wind pressure is greater than the air hose of 600Pa, according to the big side size of air hose, it should be reinforced.With a thickness of the smoke exhaust pipe of 18mm, greatly
Ying Jiagu when side is greater than 1250mm；Thickness is greater than the warm ventilation pipe of 25mm, and big side should be reinforced when being greater than 1600mm.
Reinforcement measure includes setting support column, pastes stiffener and sticking glass fabric.Support column is the ㎜'s of Φ >=10
Reinforcing bar, steel bar sleeve use flame-proof PVC plastic tube, and hot galvanizing washer and nut must be used outside reinforced steel, solid with nut
It is scheduled on the upper and lower plates of air hose, reinforced steel applies antirust paint two degrees, and support column is arranged by 1300mm spacing.Inner bracing piece fastening
When, support rod must be straightened, and reach the state of stress.Stiffener makes of identical air hose, width 40mm, is arranged in air hose
At angle, using dedicated glue sticking.Two layers of wide 50mm glass fabric need to also be pasted on the bonding wire between air hose by reinforcing air hose
Enhanced.
4) reducer pipe makes
The reducer pipe of rectangular air duct has single side bias and eccentric two kinds two-sided.The angle of reducer pipe single side variable diameter is preferably less than 30 °,
The angle of two-sided variable diameter is preferably less than 60 °.The production of variable diameter air hose is identical as straight air hose production method, wherein one side or three face blast pipe boards
Material is inclined-plane.The length of variable diameter air hose cannot be less than the difference that major part long side subtracts microcephaly's long side.Using the flat eccentric reducer in top
Mounting means.
5) branch pipe makes
According to design size, the interface of branch wind pipe is cut on main air hose.In downwind, 45 ° of channelization angles are set, channelization angle
Length cannot be less than the one third of branch wind pipe width.The opening size connecting with branch pipe upper and lower plates is that branch wind pipe inner wall size adds
Big 6mm, the opening of left and right plate junction are the size that branch wind pipe outer wall adds channelization angle.Branch wind pipe is connected with main air hose upper and lower
Plate is cut into step shape, and left and right plate does not cut step shape.
(3) lifting and connection of air hose
1) suspension and support production and installation
(1) suspension and support is fixed with expansion bolt method and welding, and what is applied in this engineering method is expansion bolt method.
(2) airduct bracket uses dimension fashioned iron according to air hose size.Full tooth sunpender is suitable according to the installed height mark of air hose
Work as interception.Rose cannot be too long, is subject to screw thread end without departing from 10mm.
(3) air hose pipeline is longer, position of marshalling, first that both ends suspension and support is good and sound when installing suspension and support, then with it
As benchmark, the absolute altitude of intermediate support is found out with bracing wire method and position is installed.When the master of horizontal suspension, dry-air blast length of tube are super
Fixed bracket should be set when crossing 20m, increase a fixed bracket when being often more than the length 10mm of 20mm.
2) connection of air hose
The connection of air hose is by the way of mismatch bonding, identical special glue when using with air hose assembly.It will with scraper when connection
Thermal insulation material on two sections of air hose lateral connection faces scrapes off 2-3 ㎜, fills on air hose lateral connection face and mismatch step line specially
With glue, two sections of air hoses to be connected are close to guarantee it is straight up and down, keep it is longitudinally coaxial transversely and horizontally.It will be squeezed on joint face
Glue out is cleaned out in time.
3) air hose telescopic joint fabrication and installation:
Air hose, which is horizontally mounted, should be arranged a telescopic joint when length often reaches 30m, the long 400mm of telescopic joint, and inner edge size compares air hose
The big 3 ~ 4mm of outside size, the TEF foam seal item of telescopic joint and air hose central filler 3mm thickness, size dimension be greater than 1600mm
Telescopic joint among should increase inner support and reinforced.
(4) airduct component is installed
1) both ends of air-valve, plenum chamber, silencer are fabricated to plug-in type, the outer diameter of air-valve bell and spigot is equal to air hose internal diameter, inserts
Enter length 50mm, is fixed using self-tapping screw.
2) according to air ports size, the cutting openings on air hose are bonded with trunnion.Soft section is covered on the outside of trunnion, use is stainless
Steel sheet is pushed down, and self-tapping screw is fixed.When length of throat is greater than 500mm, independent suspension and support should be set.
The above is only a preferred embodiment of the present invention, protection scope of the present invention is not limited merely to above-mentioned implementation
Example, all technical solutions belonged under thinking of the present invention all belong to the scope of protection of the present invention.It should be pointed out that for the art
Those of ordinary skill for, several improvements and modifications without departing from the principles of the present invention, these improvements and modifications
It should be regarded as protection scope of the present invention.
Claims (8)
1. the installation method of eccentric reducer when a kind of different medium pipeline reducing diameter, comprising the following steps:
Step 1: cutting；
1) use platform-type cutting machine, the cutting line of plate answer it is straight, cut surface and plate face at an angle of 90, the dimension board after cutting
Catercorner length error should be less than 3mm；
2) plate step line is made after the completion of dimension board cutting, cutting machine blade adjusts depth of cut according to plate thickness, makes plate
Material glass reinforced plastic protective layer of the other side in cutting will not be damaged；
3) cutting of reduced pipe plate is marked on plate and is cut after cutting line with portable cutters；
Step 2: assembled；
1) suitable viscose glue is selected；
2) first assembled；
(1) air hose bottom plate is first put in group to shelve, applies at the side plate step and is assembled in bottom plate edge after special glue, and with
Floor length direction dislocation 100mm, last covered top plate, be aligned it with bottom plate,；
(2) the air hose diagonal line difference for tying up completion should not exceed 3mm, and internal diameter and drawing specification deviation should be less than 1mm, outside
Diameter deviation should be less than 2mm；
(3) air hose appearance is answered bright and clean smooth, and crest line is straight；The remaining glue or connecting sewing cleared up not in time in bonding process is not straight
Place should be polished with angle grinder immediately after strapping of dismantling and be modified；Aluminum foil special adhesive tape is finally pasted at air hose rib makes it more
It is beautiful secured；
Step 3: it reinforces；
Air hose of the wind pressure greater than 600Pa is reinforced according to the big side size of air hose；The smoke exhaust pipe of thickness 18mm, big side are greater than
It is reinforced when 1250mm；Thickness is greater than the warm ventilation pipe of 25mm, and big side should be reinforced when being greater than 1600mm；
Step 4: the installation of eccentric reducer；
The reducer pipe of rectangular air duct has single side bias and eccentric two kinds two-sided；The angle of reducer pipe single side variable diameter is preferably less than 30 °,
The angle of two-sided variable diameter is preferably less than 60 °；The production of variable diameter air hose is identical as straight air hose production method, wherein one side or three face blast pipe boards
Material is inclined-plane；The length of variable diameter air hose cannot be less than the difference that major part long side subtracts microcephaly's long side；
Select the mounting means of eccentric reducer are as follows: when pumped (conveying) medium is liquid, then use the installation side of the flat eccentric reducer in bottom
Formula；When pumped (conveying) medium is gaseous state, then using the mounting means for pushing up flat eccentric reducer；When pumped (conveying) medium is solidliquid mixture
When, using the mounting means of the flat eccentric reducer in bottom, when pumped (conveying) medium is gas-liquid mixture, using the flat eccentric reducer in top
Mounting means；
Step 5: production branch pipe；
According to design size, the interface of branch wind pipe is cut on main air hose；In downwind, 45 ° of channelization angles are set, channelization angle
Length cannot be less than the one third of branch wind pipe width；The opening size connecting with branch pipe upper and lower plates is that branch wind pipe inner wall size adds
Big 6mm, the opening of left and right plate junction are the size that branch wind pipe outer wall adds channelization angle；Branch wind pipe is connected with main air hose upper and lower
Plate is cut into step shape, and left and right plate does not cut step shape；
Step 6: installation suspension and support；
(1) suspension and support is fixed with expansion bolt method and welding, and what is applied in this engineering method is expansion bolt method；
(2) airduct bracket uses dimension fashioned iron according to air hose size；Full tooth sunpender is suitably cut according to the installed height mark of air hose
It takes；Rose cannot be too long, is subject to screw thread end without departing from 10mm；
(3) air hose pipeline is longer, position of marshalling, first that both ends suspension and support is good and sound when installing suspension and support, then using its as
Benchmark finds out the absolute altitude of intermediate support with bracing wire method and position is installed；
Step 7: connection air hose；
The connection of air hose is by the way of mismatch bonding, identical special glue when using with air hose assembly；It will with scraper when connection
Thermal insulation material on two sections of air hose lateral connection faces scrapes off 2-3 ㎜, fills on air hose lateral connection face and mismatch step line specially
With glue, two sections of air hoses to be connected are close to guarantee it is straight up and down, keep it is longitudinally coaxial transversely and horizontally；It will be squeezed on joint face
Glue out is cleaned out in time；
Step 8: installation telescopic joint；
Air hose, which is horizontally mounted, should be arranged a telescopic joint when length often reaches 30m, the long 400mm of telescopic joint, and inner edge size compares air hose
The big 3 ~ 4mm of outside size, the TEF foam seal item of telescopic joint and air hose central filler 3mm thickness；
Step 9: installation other component；
1) both ends of air-valve, plenum chamber, silencer are fabricated to plug-in type, the outer diameter of air-valve bell and spigot is equal to air hose internal diameter, inserts
Enter length 50mm, is fixed using self-tapping screw；
2) according to air ports size, the cutting openings on air hose are bonded with trunnion；Soft section is covered on the outside of trunnion, Thin Stainless Steel is used
Plate is pushed down, and self-tapping screw is fixed.
2. the installation method of eccentric reducer when different medium pipeline reducing diameter according to claim 1, it is characterised in that: institute
It states in step 1, the corner not equal to 90 °, when scribing line should first calculate corner size, guarantee board material splice quality.
3. the installation method of eccentric reducer when different medium pipeline reducing diameter according to claim 2, it is characterised in that: institute
State in step 1, before making plate stepped line, scraped off the insulating layer outside step line with scraper, step should ensure that 90 ° it is straight
Angle, width are plate thickness, cut surface even uniform.
4. the installation method of eccentric reducer when different medium pipeline reducing diameter according to claim 3, it is characterised in that: institute
It states in step 2, in air hose assembly step when plate adhesion, firmly to squeeze, surplus glue inside and outside wall is squeezed out and clear in time
Reason is clean；Assembled good air hose should be tied up securely in time, and four corners are protected with angle steel.
5. the installation method of eccentric reducer when different medium pipeline reducing diameter according to claim 4, it is characterised in that: institute
It states in step 3, reinforcement measure includes setting support column, pastes stiffener and sticking glass fabric；Support column is the ㎜ of Φ >=10
Reinforcing bar, steel bar sleeve uses flame-proof PVC plastic tube, hot galvanizing washer and nut used outside reinforced steel, is secured with nuts
On the upper and lower plates of air hose, reinforced steel applies antirust paint two degrees, and support column is arranged by 1300mm spacing；When inner bracing piece fastens,
Support rod must be straightened, and reach the state of stress；Stiffener makes of identical air hose, width 40mm, is arranged in air hose interior angle
Place, using dedicated glue sticking；Reinforce air hose need to also be pasted on the bonding wire between air hose two layers of wide 50mm glass fabric into
Row enhancing.
6. the installation method of eccentric reducer when different medium pipeline reducing diameter according to claim 5, it is characterised in that: institute
It states in step 6, fixed bracket should be set when the master of horizontal suspension, dry-air blast length of tube are more than 20m, each system is no less than 1
It is a.
7. the installation method of eccentric reducer when different medium pipeline reducing diameter according to claim 6, it is characterised in that: institute
It states in step 8, size dimension should increase inner support among the telescopic joint greater than 1600mm and be reinforced.
8. the installation method of eccentric reducer when different medium pipeline reducing diameter according to claim 7, it is characterised in that: institute
It states in step 9, when length of throat is greater than 500mm, independent suspension and support should be set.
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