CN110450424A - Plastics tube sheet connects the method and gas-gas heat exchanger of sealing tool, tube sheet connection - Google Patents
Plastics tube sheet connects the method and gas-gas heat exchanger of sealing tool, tube sheet connection Download PDFInfo
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- CN110450424A CN110450424A CN201910799341.2A CN201910799341A CN110450424A CN 110450424 A CN110450424 A CN 110450424A CN 201910799341 A CN201910799341 A CN 201910799341A CN 110450424 A CN110450424 A CN 110450424A
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- tube
- receiving hole
- plastic plate
- plate
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- 229920003023 plastic Polymers 0.000 title claims abstract description 385
- 239000004033 plastic Substances 0.000 title claims abstract description 385
- 238000000034 method Methods 0.000 title claims abstract description 54
- 238000007789 sealing Methods 0.000 title claims abstract description 31
- 241000220317 Rosa Species 0.000 claims description 56
- 239000000463 material Substances 0.000 claims description 33
- 230000007246 mechanism Effects 0.000 claims description 26
- 238000005553 drilling Methods 0.000 claims description 16
- 230000014759 maintenance of location Effects 0.000 claims description 16
- 241001149930 Protura <class> Species 0.000 claims description 14
- 238000010438 heat treatment Methods 0.000 claims description 12
- 238000002360 preparation method Methods 0.000 claims 2
- 238000001816 cooling Methods 0.000 abstract description 6
- 230000006378 damage Effects 0.000 abstract description 3
- 238000003303 reheating Methods 0.000 abstract description 3
- 208000027418 Wounds and injury Diseases 0.000 abstract description 2
- 208000014674 injury Diseases 0.000 abstract description 2
- 230000004323 axial length Effects 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 7
- 230000006872 improvement Effects 0.000 description 4
- 208000034693 Laceration Diseases 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 241001074085 Scophthalmus aquosus Species 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 230000001458 anti-acid effect Effects 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B26—HAND CUTTING TOOLS; CUTTING; SEVERING
- B26F—PERFORATING; PUNCHING; CUTTING-OUT; STAMPING-OUT; SEVERING BY MEANS OTHER THAN CUTTING
- B26F1/00—Perforating; Punching; Cutting-out; Stamping-out; Apparatus therefor
- B26F1/16—Perforating by tool or tools of the drill type
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C35/00—Heating, cooling or curing, e.g. crosslinking or vulcanising; Apparatus therefor
- B29C35/02—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
- B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/01—General aspects dealing with the joint area or with the area to be joined
- B29C66/02—Preparation of the material, in the area to be joined, prior to joining or welding
- B29C66/022—Mechanical pre-treatments, e.g. reshaping
- B29C66/0222—Mechanical pre-treatments, e.g. reshaping without removal of material, e.g. cleaning by air blowing or using brushes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/01—General aspects dealing with the joint area or with the area to be joined
- B29C66/02—Preparation of the material, in the area to be joined, prior to joining or welding
- B29C66/022—Mechanical pre-treatments, e.g. reshaping
- B29C66/0224—Mechanical pre-treatments, e.g. reshaping with removal of material
- B29C66/02241—Cutting, e.g. by using waterjets, or sawing
- B29C66/02242—Perforating or boring
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C67/00—Shaping techniques not covered by groups B29C39/00 - B29C65/00, B29C70/00 or B29C73/00
- B29C67/0011—Shaping techniques not covered by groups B29C39/00 - B29C65/00, B29C70/00 or B29C73/00 for shaping plates or sheets
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Oral & Maxillofacial Surgery (AREA)
- Thermal Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Forests & Forestry (AREA)
- Lining Or Joining Of Plastics Or The Like (AREA)
Abstract
The invention belongs to plastics tube sheet fastening means, method and gas-gas heat exchanger technical field, the method and gas-gas heat exchanger of a kind of plastics tube sheet connection sealing tool, tube sheet connection are disclosed.It is mainly characterized in that by boring aperture, then reheating mode makes the outside lateral flange of the plate on receiving hole periphery, after cooling, again reaming and will plastic tube be inserted into receiving hole in, after cooling down again, plastic tube is just sealingly coupled together with plastic plate, at high temperature because the diameter of the receiving hole in the plastic plate that expands with heat and contract with cold can reduce, because the diameter of rising-heat contracting-cold plastic tube becomes larger, better tightness.And its axial length also can be elongated at high temperature for plastic tube, because receiving hole periphery has flange, plastic plate and plastic tube joint are round slip surface, plastics dash-board injury caused by will not in axial direction stretching because of plastic tube, and will not be scratched to plastic tube when plastic tube moves in plastic plate.
Description
Technical field
The invention belongs to plastics tube sheet connection encapsulating method and gas-gas heat exchanger technical field more particularly to a kind of plastic tubes
Method plate connection sealing tool and carry out tube sheet connection with the tool.
Background technique
Plastic material is widely used in every field because corrosion resistance is strong, antiacid alkali, the characteristics such as ageing-resistant.It is moulding
Expects pipe connect sealing with plastic plate, and plastic tube connect sealing etc. type of attachment with plastic tube, is the various heat exchange equipments of production, liquid
The important core process of body storage facilities etc..Metal plate and metal tube, which are tightly connected, usually to be used welding, riveting, expanded joint, glues
It forms, enough mechanical strengths such as connects and is fully solved the thermal expansion factor of unlike material.Plastic tube and metal tube sealed connection can also
Using riveting, expanded joint or bonding.Enough mechanical strengths can overcome the thermal expansion of plastic tube or plate.Using plastic tube and plastics
Plate is tightly connected, and is especially applied and is differed in great situation in environment temperature, it is necessary to consider the thermal expansion factor of material, weld,
The traditional handicrafts such as expanded joint, riveting are just unable to satisfy the normal use of equipment, deformation, tearing occur, and various working medium leak.
Summary of the invention
The invention solves first technical problem be just to provide that a kind of structure is simple, sealing effect is good, is not in
The plastics tube sheet connection sealing tool of deformation, tearing.
To solve the above problems, the technical solution that plastics tube sheet connection sealing of the present invention is used with tool are as follows: including having
The position of the support frame of through-hole and multiple rose bits, the through-hole is corresponding with the aperture position on plastic plate, the through-hole it is interior
Diameter is slightly larger than the outer diameter of plastic tube, support frame as described above periphery is provided with retention mechanism, the rose bit includes the cone of circular platform type
The cone body and the cylindrical cone tail equal with plastics bore of head, the cylindrical type equal with Plastic pipe outside diameter diameter, in the cone
Head lateral surface is provided with diameter graduation mark.
Its additional technical feature are as follows:
The taper of the conehead is 1:3-1:1；
The ratio between diameter at butt end and top diameter of the conehead are 1:5-1:4；
The diameters of corresponding position are marked on the diameter graduation mark.
Second technical problem that the present invention solves just is to provide a kind of using above-mentioned plastics tube sheet connection sealing tool
The method for carrying out tube sheet sealed connection.
To solve the above problems, the present invention carries out tube sheet sealed connection with tool using the connection sealing of above-mentioned plastics tube sheet
The technical solution that method uses are as follows:
The first step, plastic plate is fixed on the support frame
Plastic plate is fixed on the support frame by retention mechanism；
Second step, drilling
Receiving hole is bored on plastic plate, the diameter of receiving hole and the ratio of Plastic pipe outside diameter are 1:5-1:2；
Third step, reaming
The receiving hole on plastic plate is heated with heating mechanism, rose bit is slowly inserted perpendicularly into undertaking close to softening point by temperature
Hole slowly pushes rose bit, until the diameter of the receiving hole after reaming reaches the 1/9-1/8 of Plastic pipe outside diameter, stops lower companding
Hole cone forms flange on receiving hole periphery, continues to expand other receiving holes on plastic plate using same method, until all expanding
It is complete, naturally cool to room temperature；
4th step continues reaming, while plastic tube being inserted into the hole on plastic plate
The receiving hole on plastic plate is heated to softening point again, by plastic pipe sleeve on cone tail, is against the front end of plastic tube
Side behind cone, after pushing rose bit to pass through plastic plate with plastic tube, rose bit is detached from from plastic tube, and plastics tube end passes through modeling
Flitch pushes away plastic tube under continuing, and the end of plastic tube is made to stretch out plastic plate a distance, continues to use same method by plastic tube
It penetrates on plastic plate in corresponding receiving hole, until all having expanded, naturally cools to room temperature.
Further improvement as this method: this method includes the following steps:
The first step searches the thermal expansion factor of material
According to material characteristic parameter table, the thermal expansion factor of the material of plastic tube and plastic plate is searched and recorded referring to numerical value；
Second step, plastic plate is fixed on the support frame
Plastic plate is fixed on the support frame by retention mechanism；
Third step, drilling
According to the thermal expansion factor of plastic plate and plastic tube referring to numerical value, the thermal expansion factor of plastic plate and plastic tube is calculated referring to numerical value
With, receiving hole is bored on plastic plate, when 7≤thermal expansion factor is referring to numerical value and when < 9, the diameter of receiving hole and Plastic pipe outside diameter
Than for 1:5-1:4；When 9≤thermal expansion factor is referring to numerical value and < 11, the diameter of receiving hole and the ratio of Plastic pipe outside diameter are 1:4-1:
3；When 11≤thermal expansion factor is referring to numerical value and < 14, the diameter of receiving hole and the ratio of Plastic pipe outside diameter are 1:3-1:2；
4th step, reaming
The receiving hole on plastic plate is heated with heating mechanism, rose bit is slowly inserted perpendicularly into undertaking close to softening point by temperature
Hole slowly pushes rose bit, until the diameter of the receiving hole after reaming reaches the 1/9-1/8 of Plastic pipe outside diameter, stops lower companding
Hole cone forms flange on receiving hole periphery, continues to expand other receiving holes on plastic plate using same method, until all expanding
It is complete, naturally cool to room temperature；
5th step continues reaming, while plastic tube being inserted into the hole on plastic plate
The receiving hole on plastic plate is heated to softening point again, by plastic pipe sleeve on cone tail, is against the front end of plastic tube
Side behind cone, after pushing rose bit to pass through plastic plate with plastic tube, rose bit is detached from from plastic tube, and plastics tube end passes through modeling
Flitch pushes away plastic tube under continuing, and the end of plastic tube is made to stretch out plastic plate a distance, continues to use same method by plastic tube
It penetrates on plastic plate in corresponding receiving hole, until all having expanded, naturally cools to room temperature；
Further improvement as this method: this method includes the following steps: the first step, searches the thermal expansion factor of material
According to material characteristic parameter table, the thermal expansion factor of the material of plastic tube and plastic plate is searched and recorded referring to numerical value；
Second step tests in Muffle furnace according to the environment temperature that equipment uses, measures the accurate numerical value of thermal expansion factor；
Third step, plastic plate is fixed on the support frame
Plastic plate is fixed on the support frame by retention mechanism；
4th step, drilling
According to the accurate numerical value of the thermal expansion factor of plastic plate and plastic tube, the accurate numerical value of thermal expansion factor of plastic plate and plastic tube is calculated
With, receiving hole is bored on plastic plate, when the accurate numerical value of 7≤thermal expansion factor and when < 9, the diameter of receiving hole and Plastic pipe outside diameter
Than for 1:5-1:4；When the accurate numerical value of 9≤thermal expansion factor and < 11, the diameter of receiving hole and the ratio of Plastic pipe outside diameter are 1:4-1:
3；When the accurate numerical value of 11≤thermal expansion factor and < 14, the diameter of receiving hole and the ratio of Plastic pipe outside diameter are 1:3-1:2；
5th step, reaming
The receiving hole on plastic plate is heated with heating mechanism, rose bit is slowly inserted perpendicularly into undertaking close to softening point by temperature
Hole slowly pushes rose bit, until the diameter of the receiving hole after reaming reaches the 1/9-1/8 of Plastic pipe outside diameter, stops lower companding
Hole cone forms flange on receiving hole periphery, continues to expand other receiving holes on plastic plate using same method, until all expanding
It is complete, naturally cool to room temperature；
6th step continues reaming, while plastic tube being inserted into the hole on plastic plate
The receiving hole on plastic plate is heated to softening point again, by plastic pipe sleeve on cone tail, is against the front end of plastic tube
Side behind cone, after pushing rose bit to pass through plastic plate with plastic tube, rose bit is detached from from plastic tube, and plastics tube end passes through modeling
Flitch pushes away plastic tube under continuing, and the end of plastic tube is made to stretch out plastic plate a distance, continues to use same method by plastic tube
It penetrates on plastic plate in corresponding receiving hole, until all having expanded, naturally cools to room temperature.
The third technical problem that the present invention solves just is to provide a kind of above-mentioned plastics tube sheet seal connecting method system of use
Standby gas-gas heat exchanger.
To solve the above problems, the technical solution that gas-gas heat exchanger of the present invention uses are as follows: including shell, hot gas path and heat
Interchange channel, the hot gas path include positioned at the first end plate at both ends and the second end plate and being connected to the first end plate and the
Heat exchanger tube between two end plates, the first end plate are fixedly connected with the tube end, it is characterised in that: described second
The receiving hole that periphery has flanging is set on end plate, and the heat exchanger tube is inserted into the receiving hole, and the tube end is stretched
Second end plate out.
Its additional technical feature are as follows: the tube end stretches out described 8-15 centimetres of second end plate.
Plastics tube sheet provided by the present invention connects sealing tool and above-mentioned plastics tube sheet is used to connect sealing tool
The method for carrying out tube sheet sealed connection compared with prior art, has the advantage that first, due to including the support with through-hole
The position of frame and rose bit, the through-hole is corresponding with the aperture position on plastic plate, and the internal diameter of the through-hole is slightly larger than plastic tube
Outer diameter, support frame as described above periphery is provided with retention mechanism, the rose bit includes the conehead and Plastic pipe outside diameter of circular platform type
The cone body of the equal cylindrical type of diameter and the cylindrical cone tail equal with plastics bore, are provided with directly in the conehead lateral surface
Diameter graduation mark, using above-mentioned plastics tube sheet connection sealing with the method that tool carries out tube sheet sealed connection include the following steps: by
Plastic plate is fixed on the support frame by retention mechanism；Receiving hole, the diameter and Plastic pipe outside diameter of receiving hole are bored on plastic plate
Ratio be 1:5-1:2；The receiving hole on plastic plate is heated with heating mechanism, temperature is slowly hung down close to softening point, by rose bit
Straight cutting enters receiving hole, slowly pushes rose bit, until the diameter of the receiving hole after reaming reaches the 1/9-1/8 of Plastic pipe outside diameter,
Stop pushing rose bit, form flange on receiving hole periphery, continues to expand other receiving holes on plastic plate using same method,
Until all having expanded, room temperature is naturally cooled to；The receiving hole on plastic plate is heated to softening point again, plastic pipe sleeve is being bored
On tail, the front end of plastic tube is set to be against side behind cone, after pushing rose bit to pass through plastic plate with plastic tube, rose bit is from plastic tube
Middle disengaging, plastics tube end pass through plastic plate, push away plastic tube under continuing, and the end of plastic tube is made to stretch out plastic plate a distance,
Continue to penetrate plastic tube on plastic plate in corresponding receiving hole using same method, until all having expanded, naturally cool to often
Temperature, first by boring aperture, then reheating mode makes the outside lateral flange of the plate on receiving hole periphery, after cooling, reaming again
And plastic tube is inserted into receiving hole, after cooling down again, plastic tube is just sealingly coupled together with plastic plate, in the work of high temperature
Make in environment, since plastic plate and plastic tube all have rising-heat contracting-cold characteristic, at high temperature because of holding in the plastic plate that expands with heat and contract with cold
The diameter for connecing hole can reduce, because the diameter of rising-heat contracting-cold plastic tube becomes larger, better tightness, and plastic tube its axis at high temperature
Also can be elongated to length, because receiving hole periphery has flange, plastic plate and plastic tube joint are round slip surface, temperature change compared with
When big, plastic tube can be moved in plastic plate along plastic tube axial direction, caused by will not in axial direction stretching because of plastic tube
Plastics dash-board injury, and plastic tube will not be scratched when plastic tube moves in plastic plate；
Second, since the taper of the conehead is 1:3-1:1；The ratio between diameter at butt end and top diameter of the conehead are 1:5-1:
4；Reaming can be carried out using the rose bit of different tapers, the scope of application is wider according to the difference of the thermal expansion factor of material；
Third, since the diameters for marking corresponding position on the diameter graduation mark can basis when pushing rose bit
The diameters of standard determine the depth pushed when rose bit first time reaming on diameter graduation mark；
Fourth, according to material characteristic parameter table, searching and recording the thermal expansion system of the material of plastic tube and plastic plate before drilling
Number is referring to numerical value；Plastic plate is fixed on the support frame by retention mechanism；Then according to the thermal expansion system of plastic plate and plastic tube
The accurate numerical value of number, calculate plastic plate and plastic tube the accurate numerical value of thermal expansion factor and, receiving hole is bored on plastic plate, when 7≤heat
When the accurate numerical value of expansion factor is with < 9, the diameter of receiving hole and the ratio of Plastic pipe outside diameter are 1:5-1:4；When 9≤thermal expansion factor is accurate
When numerical value is with < 11, the diameter of receiving hole and the ratio of Plastic pipe outside diameter are 1:4-1:3；When the accurate numerical value of 11≤thermal expansion factor and < 14
When, the diameter of receiving hole and the ratio of Plastic pipe outside diameter are 1:3-1:2；In this way, can determine to accept according to the thermal expansion factor of material
The size of diameter when hole drills for the first time, it is possible to prevente effectively from the plastic plate in reaming at receiving hole is made because expanding with heat and contract with cold
At marginal laceration；
Fifth, according to the environment temperature that equipment uses, being tested in Muffle furnace before drilling, measuring thermal expansion factor and precisely count
Value；Plastic plate is fixed on the support frame by retention mechanism；According to the accurate numerical value of the thermal expansion factor of plastic plate and plastic tube, meter
Calculate plastic plate and plastic tube the accurate numerical value of thermal expansion factor and, receiving hole is bored on plastic plate, when the accurate numerical value of 7≤thermal expansion factor
When < 9, the diameter of receiving hole and the ratio of Plastic pipe outside diameter are 1:5-1:4；When the accurate numerical value of 9≤thermal expansion factor and < 11, hold
The ratio of the diameter and Plastic pipe outside diameter that connect hole is 1:4-1:3；When the accurate numerical value of 11≤thermal expansion factor and when < 14, receiving hole it is straight
The ratio of diameter and Plastic pipe outside diameter is 1:3-1:2；In this way, more accurately determining that receiving hole bores for the first time according to the thermal expansion factor of material
The size of diameter when hole, it is possible to prevente effectively from the plastic plate in reaming at receiving hole causes edge to tear because expanding with heat and contract with cold
It splits.
Gas-gas heat exchanger provided by the invention compared with prior art, have the advantage that first, due to include shell,
Hot gas path and hot switching path, the hot gas path include positioned at the first end plate at both ends and the second end plate and being connected to described
Heat exchanger tube between first end plate and the second end plate, the first end plate are fixedly connected with the tube end, described
The receiving hole that periphery has flanging is set on two end plates, and the heat exchanger tube is inserted into the receiving hole, the tube end
Second end plate is stretched out, when carrying out the exchange of gas gas, since the temperature of working environment is high, when the temperature rises, the second end plate
The diameter of receiving hole is made to become smaller because expanding with heat and contract with cold, heat exchanger tube is because expanding with heat and contract with cold so that the pipe outside diameter increase that exchanges heat, sealing effect
More preferably, and when heat exchanger tube is because expanding with heat and contract with cold axially elongated, heat exchanger tube can move in the receiving hole on the second end plate,
The fixed heating pipe in both ends is avoided because breaking or attenuating caused by rising-heat contracting-cold, hot gas leakage or hot gas resistance is caused to increase；
Second, avoiding since tube end stretches out described 8-15 centimetres of second end plate because exchanging heat caused by the expanding with heat and contract with cold of heat exchanger tube
Pipe is deviate from from the adapting pipe on the second end plate.
Detailed description of the invention
Fig. 1 is the structural schematic diagram that plastics tube sheet connects sealing tool；
Fig. 2 is the structural schematic diagram of rose bit；
Fig. 3 is the structural schematic diagram of plastics tube sheet junction；
Fig. 4 is the structural schematic diagram of gas-gas heat exchanger；
Fig. 5 is the A-A sectional view of Fig. 4.
Specific embodiment
With reference to the accompanying drawings and detailed description to the structure and use of plastics tube sheet of the present invention connection sealing tool
Principle carries out the method for tube sheet connection with tool using plastics tube sheet connection sealing and uses made of the tube sheet connecting plate
It the structure of gas-gas heat exchanger and is described in further details using principle.
As depicted in figs. 1 and 2, the structural schematic diagram of sealing tool is connected for plastics tube sheet.If Fig. 3 is plastics tube sheet company
Connect the structural schematic diagram at place；Plastics tube sheet connection sealing tool includes support frame 2 and multiple rose bits 3 with through-hole 1, is led to
The position in hole 1 is corresponding with the aperture position on plastic plate 5, and the internal diameter of through-hole 1 was slightly larger than the outer diameter of plastic tube 6, at support frame 2 weeks
While being provided with retention mechanism 4, rose bit 3 includes the cone of the conehead 31 of circular platform type, the cylindrical type equal with 6 outer diameter diameter of plastic tube
Body 32 and the cylindrical cone tail 33 equal with 6 bore of plastics, are provided with diameter graduation mark 34 in 31 lateral surface of conehead.It is logical first
Brill aperture is crossed, then reheating mode makes the outside lateral flange of plate on 7 periphery of receiving hole, after cooling, reaming and by plastics again
Pipe is inserted into receiving hole 7, and after cooling down again, plastic tube 6 is just sealingly coupled together with plastic plate 5, in the building ring of high temperature
In border, since plastic plate 5 and plastic tube 6 all have rising-heat contracting-cold characteristic, at high temperature because of the undertaking in the plastic plate that expands with heat and contract with cold
The diameter in hole can reduce, because the diameter of rising-heat contracting-cold plastic tube becomes larger, better tightness, and plastic tube its axial direction at high temperature
Length also can be elongated, and because receiving hole periphery has flange, plastic plate and plastic tube joint are round slip surface, larger in temperature change
When, plastic tube can move in plastic plate along plastic tube axial direction, mould caused by will not in axial direction stretching because of plastic tube
Flitch damage, and plastic tube will not be scratched when plastic tube moves in plastic plate.
The taper of conehead 31 is 1:3-1:1；The ratio between diameter at butt end and top diameter of conehead 31 are 1:5-1:4；It can root
According to the difference of the thermal expansion factor of material, reaming is carried out using the rose bit of different tapers, the scope of application is wider；
The diameters that corresponding position is marked on the diameter graduation mark can be according to diameter scale when pushing rose bit
The diameters of standard determine the depth pushed when rose bit first time reaming on line.
The method for carrying out tube sheet sealed connection with tool using the connection sealing of above-mentioned plastics tube sheet, this method includes following step
It is rapid:
The first step, plastic plate is fixed on the support frame
Plastic plate 5 is fixed on support frame 2 by retention mechanism 4；
Second step, drilling
Receiving hole 7 is bored on plastic plate 5, the diameter of receiving hole and the ratio of Plastic pipe outside diameter are 1:5-1:2；
Third step, reaming
The receiving hole on plastic plate 5 is heated with heating mechanism, rose bit is slowly inserted perpendicularly into undertaking close to softening point by temperature
Hole slowly pushes rose bit 3, until the diameter of the receiving hole after reaming reaches the 1/9-1/8 of Plastic pipe outside diameter, stops lower companding
Hole cone 3 forms flange on 7 periphery of receiving hole, continues to expand other receiving holes on plastic plate using same method, until all
It has been expanded that, naturally cool to room temperature；
4th step continues reaming, while plastic tube being inserted into the hole on plastic plate
The receiving hole 7 on plastic plate is heated to softening point again, by 6 sets of plastic tube on cone tail 33, makes the front end of plastic tube 6
It is against cone 32 rear of body, after pushing rose bit to pass through plastic plate with plastic tube, rose bit is detached from from plastic tube, plastics tube end
Across plastic plate, plastic tube is pushed away under continuing, the end of plastic tube is made to stretch out plastic plate a distance, continuing will using same method
Plastic tube penetrates on plastic plate in corresponding receiving hole, until all having expanded, naturally cools to room temperature.
Further improvement as this method: this method includes the following steps:
The first step searches the thermal expansion factor of material
According to material characteristic parameter table, the thermal expansion factor of the material of plastic tube and plastic plate is searched and recorded referring to numerical value；
Second step, plastic plate is fixed on the support frame
Plastic plate is fixed on the support frame by retention mechanism；
Third step, drilling
According to the thermal expansion factor of plastic plate and plastic tube referring to numerical value, the thermal expansion factor of plastic plate and plastic tube is calculated referring to numerical value
With, receiving hole is bored on plastic plate, when 7≤thermal expansion factor is referring to numerical value and when < 9, the diameter of receiving hole and Plastic pipe outside diameter
Than for 1:5-1:4；When 9≤thermal expansion factor is referring to numerical value and < 11, the diameter of receiving hole and the ratio of Plastic pipe outside diameter are 1:4-1:
3；When 11≤thermal expansion factor is referring to numerical value and < 14, the diameter of receiving hole and the ratio of Plastic pipe outside diameter are 1:3-1:2；
4th step, reaming
The receiving hole on plastic plate is heated with heating mechanism, rose bit is slowly inserted perpendicularly into undertaking close to softening point by temperature
Hole slowly pushes rose bit, until the diameter of the receiving hole after reaming reaches the 1/9-1/8 of Plastic pipe outside diameter, stops lower companding
Hole cone forms flange on receiving hole periphery, continues to expand other receiving holes on plastic plate using same method, until all expanding
It is complete, naturally cool to room temperature；
5th step continues reaming, while plastic tube being inserted into the hole on plastic plate
The receiving hole on plastic plate is heated to softening point again, by plastic pipe sleeve on cone tail, is against the front end of plastic tube
Side behind cone, after pushing rose bit to pass through plastic plate with plastic tube, rose bit is detached from from plastic tube, and plastics tube end passes through modeling
Flitch pushes away plastic tube under continuing, and the end of plastic tube is made to stretch out plastic plate a distance, continues to use same method by plastic tube
It penetrates on plastic plate in corresponding receiving hole, until all having expanded, naturally cools to room temperature.
If the thermal expansion factor of material is big, the diameter of drilling is with regard to larger, if the thermal expansion factor of material is small, drilling it is straight
Diameter is with regard to smaller, in reaming, not will cause the tearing of flange.In this way, can determine receiving hole according to the thermal expansion factor of material
The size of diameter when drilling for the first time, it is possible to prevente effectively from the plastic plate in reaming at receiving hole is caused because expanding with heat and contract with cold
Marginal laceration.
Further improvement as this method: this method includes the following steps:
The first step searches the thermal expansion factor of material
According to material characteristic parameter table, the thermal expansion factor of the material of plastic tube and plastic plate is searched and recorded referring to numerical value；
Second step tests in Muffle furnace according to the environment temperature that equipment uses, measures the accurate numerical value of thermal expansion factor；
Third step, plastic plate is fixed on the support frame
Plastic plate is fixed on the support frame by retention mechanism；
4th step, drilling
According to the accurate numerical value of the thermal expansion factor of plastic plate and plastic tube, the accurate numerical value of thermal expansion factor of plastic plate and plastic tube is calculated
With, receiving hole is bored on plastic plate, when the accurate numerical value of 7≤thermal expansion factor and when < 9, the diameter of receiving hole and Plastic pipe outside diameter
Than for 1:5-1:4；When the accurate numerical value of 9≤thermal expansion factor and < 11, the diameter of receiving hole and the ratio of Plastic pipe outside diameter are 1:4-1:
3；When the accurate numerical value of 11≤thermal expansion factor and < 14, the diameter of receiving hole and the ratio of Plastic pipe outside diameter are 1:3-1:2；
5th step, reaming
The receiving hole on plastic plate is heated with heating mechanism, rose bit is slowly inserted perpendicularly into undertaking close to softening point by temperature
Hole slowly pushes rose bit, until the diameter of the receiving hole after reaming reaches the 1/9-1/8 of Plastic pipe outside diameter, stops lower companding
Hole cone forms flange on receiving hole periphery, continues to expand other receiving holes on plastic plate using same method, until all expanding
It is complete, naturally cool to room temperature；
6th step continues reaming, while plastic tube being inserted into the hole on plastic plate
The receiving hole on plastic plate is heated to softening point again, by plastic pipe sleeve on cone tail, is against the front end of plastic tube
Side behind cone, after pushing rose bit to pass through plastic plate with plastic tube, rose bit is detached from from plastic tube, and plastics tube end passes through modeling
Flitch pushes away plastic tube under continuing, and the end of plastic tube is made to stretch out plastic plate a distance, continues to use same method by plastic tube
It penetrates on plastic plate in corresponding receiving hole, until all having expanded, naturally cools to room temperature.
If the thermal expansion factor of material is big, the diameter of drilling is with regard to larger, if the thermal expansion factor of material is small, drilling it is straight
Diameter is with regard to smaller, in reaming, not will cause the tearing of flange, in this way, more accurately being held according to the decision of the thermal expansion factor of material
The size for connecing diameter when hole drills for the first time, it is possible to prevente effectively from the plastic plate in reaming at receiving hole is due to expanding with heat and contract with cold
Cause marginal laceration.
It as shown in Figure 4 and Figure 5, is the structural schematic diagram of gas-gas heat exchanger；Gas-gas heat exchanger includes shell 11, hot gas path
12 and hot switching path 13, hot gas path 12 includes positioned at the first end plate 14 at both ends and the second end plate 15 and being connected to first end
Heat exchanger tube 16 between plate 14 and the second end plate 15, first end plate 14 and heat exchanger tube 16 are fixedly connected by dead ring 17, the
The receiving hole 18 that periphery has flanging 19 is set on two end plates 15, and heat exchanger tube 16 is inserted into receiving hole 18, the end of heat exchanger tube 16
The second end plate 15 is stretched out in portion, when carrying out the exchange of gas gas, since the temperature of working environment is high, when the temperature rises, the second end plate
15 make the diameter of receiving hole 18 become smaller because expanding with heat and contract with cold, and heat exchanger tube 16 is because expanding with heat and contract with cold so that the pipe outside diameter increase that exchanges heat, close
It is more preferable to seal effect, and when heat exchanger tube 16 is because expanding with heat and contract with cold axially elongated, heat exchanger tube can be in the undertaking on the second end plate
It is moved in hole, avoids the fixed heating pipe in both ends because breaking or attenuating caused by rising-heat contracting-cold, cause hot gas leakage or hot gas
Resistance increases.
16 end of heat exchanger tube stretches out described 8-15 centimetres of second end plate, avoids because exchanging heat caused by the expanding with heat and contract with cold of heat exchanger tube
Pipe is deviate from from the adapting pipe on the second end plate.
Protection scope of the present invention is not limited solely to above-described embodiment, if structure connect with plastics tube sheet of the present invention it is close
The method that envelope uses the structure of tool same or similar or the method for tube sheet connection is connect with tube sheet is same or similar, Huo Zhejie
The structure of structure and gas-gas heat exchanger of the present invention is same or similar, just falls in the scope of protection of the invention.
Claims (9)
1. plastics tube sheet connects sealing tool, it is characterised in that: support frame and multiple rose bits including having through-hole, it is described
The position of through-hole is corresponding with the aperture position on plastic plate, and the internal diameter of the through-hole is slightly larger than the outer diameter of plastic tube, in the branch
Support periphery is provided with retention mechanism, and the rose bit includes the conehead of circular platform type, the cylinder equal with Plastic pipe outside diameter diameter
The cone body of type and the cylindrical cone tail equal with plastics bore, are provided with diameter graduation mark in the conehead lateral surface.
2. plastics tube sheet according to claim 1 connects sealing tool, it is characterised in that: the taper of the conehead is 1:
3-1:1.
3. plastics tube sheet according to claim 1 connects sealing tool, it is characterised in that: the diameter at butt end of the conehead
It is 1:5-1:4 with the ratio between top diameter.
4. plastics tube sheet according to claim 1 connects sealing tool, it is characterised in that: on the diameter graduation mark
Mark the diameters of corresponding position.
5. the method for carrying out tube sheet connection sealing with tool using the connection sealing of plastics tube sheet described in claim 1,2,3 or 4,
It is characterized by:
This method includes the following steps:
The first step, plastic plate is fixed on the support frame
Plastic plate is fixed on the support frame by retention mechanism；
Second step, drilling
Receiving hole is bored on plastic plate, the diameter of receiving hole and the ratio of Plastic pipe outside diameter are 1:5-1:2；
Third step, reaming
The receiving hole on plastic plate is heated with heating mechanism, rose bit is slowly inserted perpendicularly into undertaking close to softening point by temperature
Hole slowly pushes rose bit, until the diameter of the receiving hole after reaming reaches the 1/9-1/8 of Plastic pipe outside diameter, stops lower companding
Hole cone forms flange on receiving hole periphery, continues to expand other receiving holes on plastic plate using same method, until all expanding
It is complete, naturally cool to room temperature；
4th step continues reaming, while plastic tube being inserted into the hole on plastic plate
The receiving hole on plastic plate is heated to softening point again, by plastic pipe sleeve on cone tail, is against the front end of plastic tube
Side behind cone, after pushing rose bit to pass through plastic plate with plastic tube, rose bit is detached from from plastic tube, and plastics tube end passes through modeling
Flitch pushes away plastic tube under continuing, and the end of plastic tube is made to stretch out plastic plate a distance, continues to use same method by plastic tube
It penetrates on plastic plate in corresponding receiving hole, until all having expanded, naturally cools to room temperature.
6. the method for plastics tube sheet connection sealing according to claim 5, it is characterised in that:
This method includes the following steps:
The first step searches the thermal expansion factor of material
According to material characteristic parameter table, the thermal expansion factor of the material of plastic tube and plastic plate is searched and recorded referring to numerical value；
Second step, plastic plate is fixed on the support frame
Plastic plate is fixed on the support frame by retention mechanism；
Third step, drilling
According to the thermal expansion factor of plastic plate and plastic tube referring to numerical value, the thermal expansion factor of plastic plate and plastic tube is calculated referring to numerical value
With, receiving hole is bored on plastic plate, when 7≤thermal expansion factor is referring to numerical value and when < 9, the diameter of receiving hole and Plastic pipe outside diameter
Than for 1:5-1:4；When 9≤thermal expansion factor is referring to numerical value and < 11, the diameter of receiving hole and the ratio of Plastic pipe outside diameter are 1:4-1:
3；When 11≤thermal expansion factor is referring to numerical value and < 14, the diameter of receiving hole and the ratio of Plastic pipe outside diameter are 1:3-1:2；
4th step, reaming
The receiving hole on plastic plate is heated with heating mechanism, rose bit is slowly inserted perpendicularly into undertaking close to softening point by temperature
Hole slowly pushes rose bit, until the diameter of the receiving hole after reaming reaches the 1/9-1/8 of Plastic pipe outside diameter, stops lower companding
Hole cone forms flange on receiving hole periphery, continues to expand other receiving holes on plastic plate using same method, until all expanding
It is complete, naturally cool to room temperature；
5th step continues reaming, while plastic tube being inserted into the hole on plastic plate
The receiving hole on plastic plate is heated to softening point again, by plastic pipe sleeve on cone tail, is against the front end of plastic tube
Side behind cone, after pushing rose bit to pass through plastic plate with plastic tube, rose bit is detached from from plastic tube, and plastics tube end passes through modeling
Flitch pushes away plastic tube under continuing, and the end of plastic tube is made to stretch out plastic plate a distance, continues to use same method by plastic tube
It penetrates on plastic plate in corresponding receiving hole, until all having expanded, naturally cools to room temperature.
7. the method for plastics tube sheet connection sealing according to claim 6, it is characterised in that:
This method includes the following steps:
The first step searches the thermal expansion factor of material
According to material characteristic parameter table, the thermal expansion factor of the material of plastic tube and plastic plate is searched and recorded referring to numerical value；
Second step tests in Muffle furnace according to the environment temperature that equipment uses, measures the accurate numerical value of thermal expansion factor；
Third step, plastic plate is fixed on the support frame
Plastic plate is fixed on the support frame by retention mechanism；
4th step, drilling
According to the accurate numerical value of the thermal expansion factor of plastic plate and plastic tube, the accurate numerical value of thermal expansion factor of plastic plate and plastic tube is calculated
With, receiving hole is bored on plastic plate, when the accurate numerical value of 7≤thermal expansion factor and when < 9, the diameter of receiving hole and Plastic pipe outside diameter
Than for 1:5-1:4；When the accurate numerical value of 9≤thermal expansion factor and < 11, the diameter of receiving hole and the ratio of Plastic pipe outside diameter are 1:4-1:
3；When the accurate numerical value of 11≤thermal expansion factor and < 14, the diameter of receiving hole and the ratio of Plastic pipe outside diameter are 1:3-1:2；
5th step, reaming
The receiving hole on plastic plate is heated with heating mechanism, rose bit is slowly inserted perpendicularly into undertaking close to softening point by temperature
Hole slowly pushes rose bit, until the diameter of the receiving hole after reaming reaches the 1/9-1/8 of Plastic pipe outside diameter, stops lower companding
Hole cone forms flange on receiving hole periphery, continues to expand other receiving holes on plastic plate using same method, until all expanding
It is complete, naturally cool to room temperature；
6th step continues reaming, while plastic tube being inserted into the hole on plastic plate
The receiving hole on plastic plate is heated to softening point again, by plastic pipe sleeve on cone tail, is against the front end of plastic tube
Side behind cone, after pushing rose bit to pass through plastic plate with plastic tube, rose bit is detached from from plastic tube, and plastics tube end passes through modeling
Flitch pushes away plastic tube under continuing, and the end of plastic tube is made to stretch out plastic plate a distance, continues to use same method by plastic tube
It penetrates on plastic plate in corresponding receiving hole, until all having expanded, naturally cools to room temperature.
8. the gas-gas heat exchanger of the method preparation using the connection sealing of plastics tube sheet described in claim 5,6 or 7, including shell
Body, hot gas path and hot switching path, the hot gas path include positioned at the first end plate at both ends and the second end plate and being connected to
Heat exchanger tube between the first end plate and the second end plate, the first end plate are fixedly connected with the tube end, special
Sign is: the receiving hole that periphery has flanging is set on second end plate, the heat exchanger tube is inserted into the receiving hole,
The tube end stretches out second end plate.
9. the gas-gas heat exchanger of the method preparation using the connection sealing of plastics tube sheet described in claim 5,6 or 7, feature exist
In: the tube end stretches out described 8-15 centimetres of second end plate.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910799341.2A CN110450424B (en) | 2019-08-28 | 2019-08-28 | Tool for connecting and sealing plastic tube plates, tube plate connecting method and gas-gas heat exchanger |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910799341.2A CN110450424B (en) | 2019-08-28 | 2019-08-28 | Tool for connecting and sealing plastic tube plates, tube plate connecting method and gas-gas heat exchanger |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114523698A (en) * | 2022-01-17 | 2022-05-24 | 酷黑科技（北京）有限公司 | Sealing connection method and sealing connection device |
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| CN114523698A (en) * | 2022-01-17 | 2022-05-24 | 酷黑科技（北京）有限公司 | Sealing connection method and sealing connection device |
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| CN110450424B (en) | 2024-02-23 |
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