CN208068643U - A kind of dehumidifying heat pump to be dehumidified using thermoplastic shaping waste heat - Google Patents
A kind of dehumidifying heat pump to be dehumidified using thermoplastic shaping waste heat Download PDFInfo
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- CN208068643U CN208068643U CN201820384213.2U CN201820384213U CN208068643U CN 208068643 U CN208068643 U CN 208068643U CN 201820384213 U CN201820384213 U CN 201820384213U CN 208068643 U CN208068643 U CN 208068643U
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- Prior art keywords
- air
- removal moisture
- waste heat
- moisture drying
- gas stream
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- 239000002918 waste heat Substances 0.000 title claims abstract description 41
- 238000007493 shaping process Methods 0.000 title claims abstract description 24
- 229920001169 thermoplastic Polymers 0.000 title claims abstract description 23
- 239000004416 thermosoftening plastic Substances 0.000 title claims abstract description 23
- 238000001035 drying Methods 0.000 claims abstract description 84
- 239000007789 gas Substances 0.000 claims abstract description 44
- 230000008929 regeneration Effects 0.000 claims abstract description 42
- 238000011069 regeneration method Methods 0.000 claims abstract description 42
- 239000004033 plastic Substances 0.000 claims description 14
- 229920003023 plastic Polymers 0.000 claims description 14
- 238000011084 recovery Methods 0.000 claims description 12
- 230000001172 regenerating effect Effects 0.000 claims description 9
- 238000001816 cooling Methods 0.000 claims description 6
- 230000000153 supplemental effect Effects 0.000 claims description 4
- 239000002245 particle Substances 0.000 claims description 3
- 230000001105 regulatory effect Effects 0.000 claims description 2
- 238000000034 method Methods 0.000 abstract description 8
- 239000000463 material Substances 0.000 description 4
- 238000001125 extrusion Methods 0.000 description 3
- 230000002829 reductive effect Effects 0.000 description 3
- 238000010521 absorption reaction Methods 0.000 description 2
- 230000002411 adverse Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000002808 molecular sieve Substances 0.000 description 2
- 238000005192 partition Methods 0.000 description 2
- URGAHOPLAPQHLN-UHFFFAOYSA-N sodium aluminosilicate Chemical compound [Na+].[Al+3].[O-][Si]([O-])=O.[O-][Si]([O-])=O URGAHOPLAPQHLN-UHFFFAOYSA-N 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000006229 carbon black Substances 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000012774 insulation material Substances 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
- 238000009421 internal insulation Methods 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 229920000098 polyolefin Polymers 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 230000002441 reversible effect Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Drying Of Gases (AREA)
- Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
Abstract
The utility model discloses a kind of dehumidifying heat pumps to be dehumidified using thermoplastic shaping waste heat, including removal moisture drying host, counterflow heat exchanger, recirculated air cooler, removal moisture drying hopper and controller；The top of counterflow heat exchanger is equipped with the waste heat air access port being connected with the high hot-air generated in thermoplastic shaping；Waste heat air outlet, dry gas stream entrance, dry gas stream outlet, regeneration air stream entrance and regeneration air stream outlet are additionally provided on counterflow heat exchanger, dry gas stream outlet is connected with the hopper air intake vent of removal moisture drying hopper；Temperature sensor is equipped at hopper air intake vent；Counterflow heat exchanger further includes bypass line, and one end of bypass line is connected by threeway with drying pipeline one, dry gas stream entrance with a volume damper being connected with controller is respectively set on bypass line.The utility model can utilize waste heat to be regenerated for dehumidizer, moreover it is possible to be heated to process object using waste heat, outside air is prevented to be mixed into closed drying cycles system.
Description
Technical field
The utility model is related to a kind of dehumidifying heat pump, especially a kind of dehumidifying to be dehumidified using thermoplastic shaping waste heat
Drying machine.
Background technology
In plastic material process, especially during the extrusion thermoplastic shaping of polyolefin plastics gas pipeline,
There is high-hygroscopicity due to containing carbon black substance in plastic particle material used, it must be to it before plastics plasticating extrusion
Pre-dehumidified drying process is carried out, its interior moisture content is substantially reduced, to prevent water point from being escaped in melting extrusion forming process
Cavity is formed, the anti-pressure ability of gas pipeline can be reduced and cause explosion by being formed by cavity, form huge security risk.
Meanwhile to improve the shaping efficiency of plastic conduit, often in plastic conduit forming process, its inner wall is carried out
It is evacuated cooling and shaping, the high hot-air of extraction is discharged to form waste heat discharge by die end, causes energy significant wastage, increases
Carrying capacity of environment is added.
Utility model content
The technical problems to be solved in the utility model be in view of the above shortcomings of the prior art, and provide it is a kind of utilize thermoplastic
The dehumidifying heat pump that molding waste heat dehumidifies, this utilizes waste heat using the removal moisture drying function that thermoplastic shaping waste heat dehumidifies
Carry out dehumidizer regeneration, moreover it is possible to be heated to process object using waste heat, outside air is prevented to be mixed into closed drying cycles system.
In addition, air can also be maintained to be dried in specific temperature.
In order to solve the above technical problems, the technical solution adopted in the utility model is：
A kind of dehumidifying heat pump to be dehumidified using thermoplastic shaping waste heat, including removal moisture drying host, countercurrent heat exchange
Device, recirculated air cooler, removal moisture drying hopper and controller.
There are at least two channels, one of channel is removal moisture drying channel, wherein also one in removal moisture drying host
A channel is recovery passage.Dehumidizer is filled in each channel, the dehumidizer in removal moisture drying channel can in
Dehumidizer in recovery passage exchanges position.
The top setting of counterflow heat exchanger has surplus heat air access port, the waste heat air access port by waste heat pipeline with
High warm air exhaust port in plastic grain thermoplastic shaping machine is connected；The sky that has surplus heat is arranged in the bottom side of counterflow heat exchanger
The bottom other side of gas outlet, counterflow heat exchanger is provided with dry gas stream entrance, and dry gas stream entrance passes through drying pipeline
One is connected with the outlet of the dry gas stream of removal moisture drying host.
Dry gas stream outlet, dry gas stream outlet are provided on the counterflow heat exchanger above waste heat air outlet
It is connected with the hopper air intake vent of removal moisture drying hopper by drying pipeline two；It is provided at hopper air intake vent and is connected with controller
The temperature sensor connect.
Be disposed with from top to bottom on the counterflow heat exchanger of dry gas stream entrance top regeneration air outlet and
Regeneration air entrance, regeneration air outlet is connected by coiling the regeneration pipeline of setting with regeneration air entrance, to be formed
Regeneration air path；Regeneration air outlet is connected by regeneration air pipeline with the entrance of regenerative heater in removal moisture drying host
It connects.
The air outlet of removal moisture drying hopper is connected by pipeline with the entrance of recirculated air cooler, the outlet of recirculated air cooler
It is connected with the air intake vent in removal moisture drying channel in removal moisture drying host by air return pipeline.
Counterflow heat exchanger further includes bypass line, and one end of bypass line is connected by threeway with drying pipeline one,
The other end of bypass line is connected with drying pipeline two, and one and controller is respectively arranged on dry gas stream entrance and bypass line
The volume damper being connected.
Regeneration air inlet is provided with filter.
Cooling fan is provided on recirculated air cooler.
Further include that dehumidizer exchanges position driving device and regenerative heater, dehumidizer exchanges position driving device can be by position
Dehumidizer in removal moisture drying channel exchanges position with the dehumidizer in recovery passage, and being equipped with regeneration in recovery passage adds
Hot device.
Dry gas stream exports and is provided with supplemental heater on the drying pipeline two between hopper air intake vent.
The utility model has the advantages that：
1. the high hot-air in plastic grain thermoplastic shaping machine can be utilized, namely carried out in removal moisture drying host using waste heat
The regeneration of dehumidizer.
2. being heated to dry air using waste heat, dry heat air is formed, using dry heat air to plastics
Particle is heated up and is dehumidified.
3. outside air is prevented to be mixed into closed drying cycles system.
4. maintaining to be dried air in specific steady temperature.
5. not interfering the pre- hot function of the startup of machine.
Description of the drawings
Fig. 1 shows a kind of structural representation of the dehumidifying heat pump to dehumidify using thermoplastic shaping waste heat of the utility model
Figure.
Fig. 2 shows the longitudinal section view of counterflow heat exchanger.
Wherein have：1 removal moisture drying host；2. counterflow heat exchanger；3. removal moisture drying hopper；4. controller；10. drying tube
Lu Yi；12. air return pipeline；13. regeneration air pipeline；131. regeneration air entrance；132. regeneration air exports；21. air quantity tune
Save valve one；22. volume damper two；221. dry gas stream entrances；222. revolution heat-exchange tube paths；223. dry gas streams go out
Mouthful；23. filter；24. waste heat air access port；25. waste heat air outlet；26. recirculated air cooler；261. cooling fan；
27. bypass line；28. threeway；29. partition board；31. temperature sensor；32. supplemental heater；33. pipeline；35, drying pipeline
Two.
Specific implementation mode
The utility model is described in further detail with specific better embodiment below in conjunction with the accompanying drawings.
As shown in Figure 1, a kind of dehumidifying heat pump to be dehumidified using thermoplastic shaping waste heat, including removal moisture drying host 1,
Counterflow heat exchanger 2, recirculated air cooler 26, removal moisture drying hopper 3 and controller 4.
There are at least two channels and dehumidizer to exchange position driving device, one of channel is in removal moisture drying host
Removal moisture drying channel, wherein being recovery passage there are one channel.Dehumidizer is filled in each channel, dehumidizer exchanges position
Position can be exchanged by the dehumidizer in removal moisture drying channel with the dehumidizer in recovery passage by setting driving device.Regeneration
The regenerative heater that can be heated up is provided in channel.
The concrete structure of above-mentioned removal moisture drying host is the prior art, and which is not described herein again.Above-mentioned dehumidizer exchanges position
Driving device is preferably arranged on the runner in removal moisture drying host, and the preferred cloth in all channels is in rotor periphery, and channel energy
It is rotated with runner.
As shown in Fig. 2, the inside of counterflow heat exchanger is by turning round heat-exchange tube paths 222, partition board 29 and frame, shape
At internal insulation access.The air access port 24 that has surplus heat is arranged in the top of counterflow heat exchanger, which passes through
Waste heat pipeline is connected with the high warm air exhaust port in plastic grain thermoplastic shaping machine.
The air outlet 25 that has surplus heat, the bottom other side of counterflow heat exchanger is arranged in the bottom side of counterflow heat exchanger
It is provided with dry gas stream entrance 221, dry gas stream entrance is gone out by drying pipeline 1 and the dry gas stream of removal moisture drying host 1
Mouth is connected.
Dry gas stream outlet 223, dry gas stream are provided on the counterflow heat exchanger above waste heat air outlet
Between entrance and dry gas stream outlet and waste heat air access port and waste heat air outlet are both provided with revolution heat-exchange tube
Paths 222, dry gas stream and the mutual reverse flow of residual heat air current, realize adverse current indirect heat exchange.
Dry gas stream outlet is connected by drying pipeline 2 35 with the hopper air intake vent of removal moisture drying hopper；Hopper inlet air
It is provided with the temperature sensor 31 being connected with controller at mouthful.
Further, supplement is preferably provided on the drying pipeline two between dry gas stream outlet 223 and hopper air intake vent to add
Hot device 32.
Counterflow heat exchanger further includes bypass line 27, and one end of bypass line is connected by threeway 28 with drying pipeline one
Connect, the other end of bypass line is connected by threeway with drying pipeline two, dry gas stream entrance be respectively arranged on bypass line
One volume damper being connected with controller, two volume dampers are respectively volume damper 1 and volume damper
2 22.
It is disposed with regeneration air outlet 132 from top to bottom on the counterflow heat exchanger of dry gas stream entrance top
With regeneration air entrance 131, regeneration air outlet is connected by coiling the regeneration pipeline of setting with regeneration air entrance, to
Form regeneration air path.
Regeneration air outlet is connected by regeneration air pipeline 13 with the entrance of regenerative heater in removal moisture drying host.
The air outlet of removal moisture drying hopper is connected by pipeline 33 with the entrance of recirculated air cooler, and recirculated air cooler goes out
Mouth is connected by air return pipeline 12 with the air intake vent in removal moisture drying channel.
Further, regeneration air inlet is preferably provided with filter 23.
Further, cooling fan 261 is preferably provided on recirculated air cooler.
A method of it is dehumidified, is included the following steps using thermoplastic shaping waste heat：
Step 1, waste heat air recycles：The high hot-air generated in plastic grain thermoplastic shaping machine at the top of heat exchanger more than
Hot-air access port enters, and after revolution is radiated, is discharged from the waste heat air outlet of counterflow heat exchanger bottom.
Step 2, return air cools down：Be recycled at the top of removal moisture drying hopper and carry the air of handled material moisture from except
The air outlet of wet drying hopper is extracted out, is cooled down into recirculated air cooler.
Step 3, air dewetting：It is logical to enter the removal moisture drying in dehumidifying heat pump through recirculated air cooler air after cooling
Road carries out removal moisture drying, forms dry air.
Step 4, dry air heats：Temperature sensor is detected the temperature of removal moisture drying hopper air intake vent, control
Device controls the opening degree of two volume dampers, to keep entering according to the air intake vent temperature of the removal moisture drying hopper detected
The temperature of the dry gas stream of drying hopper is constant.The dry air in counterflow heat exchanger is entered to by dry gas stream entrance,
After carrying out adverse current revolution indirect heat exchange heat absorption, exports and be discharged from counterflow heat exchanger dry gas stream, and mix by bypass
Dry air is heated to set temperature；Air intake vent through drying pipeline two and removal moisture drying hopper enters in removal moisture drying hopper.
In this step 4, controller controls two air quantity and adjusts according to the air intake vent temperature of the removal moisture drying hopper detected
The preferred method of the opening degree of valve is：When air intake vent temperature is higher than setting value, the volume damper being located in bypass line increases
Big opening degree, the volume damper for being located at dry gas stream inlet reduce opening degree；When air intake vent temperature is less than setting value, position
Volume damper in bypass line reduces opening degree, and the volume damper for being located at dry gas stream inlet increases opening degree.
When the volume damper opening degree in bypass line is decreased to minimum, it is located at the air quantity of dry gas stream inlet
Regulating valve opening degree increases to maximum, and when air intake vent temperature is still below setting value, supplemental heater is started to work.
Step 5, plastic grain is dried：From the dry heat air of dry gas stream outlet discharge, through drying pipeline two and remove
The air intake vent of wet drying hopper enters in removal moisture drying hopper, is dried and removes to the plastic grain in removal moisture drying hopper
It is wet.
Step 6, dehumidizer regenerates：Dehumidizer in removal moisture drying channel is handed over the dehumidizer in recovery passage
After change place, outside air enters the revolution heat absorption of the regeneration air path in counterflow heat exchanger through regeneration air entrance, from again
After raw air outlet slit discharge, continue to be heated to set temperature into regenerative heater in removal moisture drying host, into recovery passage
Carry out the high temperature regeneration hydrofuge of dehumidizer.
There is in the utility model in counterflow heat exchanger mutually isolated multi-path, counterflow heat exchanger recycling to come remaining
Hot-air carries out heat exchange with for dehumidizer dehumidizer regeneration air stream first；Next, waste heat is empty in counterflow heat exchanger
Gas by the dry air after the dehumidifying of removal moisture drying host to heating.The flow direction of waste heat air and control air
Flow direction forms efficient heat exchange, adds insulation material outside entire counterflow heat exchanger on the contrary, formation countercurrent heat exchange
Material.
In system work process, when especially with molecular sieve as dehumidizer, since molecular sieve is relatively good
Regeneration temperature therefore can be regenerated as far as possible to dehumidizer using the waste heat air of high temperature at 200 degree or more, without
It is partly or entirely to discharge it in vain；By the residual heat air current in recovery passage, although some temperature are reduced, but still can
Dry gas stream is heated to sufficiently high temperature.
Preferred embodiments of the present invention described in detail above, still, the utility model are not limited to above-mentioned reality
Apply the detail in mode, in the range of the technology design of the utility model, can to the technical solution of the utility model into
The a variety of equivalents of row, these equivalents belong to the scope of protection of the utility model.
Claims (6)
1. a kind of dehumidifying heat pump to be dehumidified using thermoplastic shaping waste heat, it is characterised in that：Including removal moisture drying host, inverse
Regenerative heat exchanger, recirculated air cooler, removal moisture drying hopper and controller；
There are at least two channels, one of channel is removal moisture drying channel, wherein there are one logical in removal moisture drying host
Road is recovery passage；Dehumidizer is filled in each channel, the dehumidizer in removal moisture drying channel can in regeneration
Dehumidizer in channel exchanges position；
The air access port that has surplus heat is arranged in the top of counterflow heat exchanger, which passes through waste heat pipeline and plastics
High warm air exhaust port in particle thermoplastic shaping machine is connected；The air row that has surplus heat is arranged in the bottom side of counterflow heat exchanger
Outlet, the bottom other side of counterflow heat exchanger are provided with dry gas stream entrance, dry gas stream entrance by drying pipeline one with
The dry gas stream outlet of removal moisture drying host is connected；
Dry gas stream outlet is provided on the counterflow heat exchanger above waste heat air outlet, dry gas stream outlet passes through
Drying pipeline two is connected with the hopper air intake vent of removal moisture drying hopper；It is provided at hopper air intake vent and is connected with controller
Temperature sensor；
It is disposed with regeneration air outlet and regeneration from top to bottom on the counterflow heat exchanger of dry gas stream entrance top
Air intake, regeneration air outlet are connected by coiling the regeneration pipeline of setting with regeneration air entrance, to form regeneration
Air duct；Regeneration air outlet is connected by regeneration air pipeline with the entrance of regenerative heater in removal moisture drying host；
The air outlet of removal moisture drying hopper is connected by pipeline with the entrance of recirculated air cooler, and the outlet of recirculated air cooler passes through
Air return pipeline is connected with the air intake vent in removal moisture drying channel in removal moisture drying host.
2. the dehumidifying heat pump according to claim 1 to be dehumidified using thermoplastic shaping waste heat, it is characterised in that：Countercurrently
Heat exchanger further includes bypass line, and one end of bypass line is connected by threeway with drying pipeline one, bypass line it is another
One end is connected with drying pipeline two, dry gas stream entrance with an air quantity being connected with controller is respectively set on bypass line
Regulating valve.
3. the dehumidifying heat pump according to claim 1 to be dehumidified using thermoplastic shaping waste heat, it is characterised in that：Regeneration
Filter is provided at air intake.
4. the dehumidifying heat pump according to claim 1 to be dehumidified using thermoplastic shaping waste heat, it is characterised in that：Return air
Cooling fan is provided on cooler.
5. the dehumidifying heat pump according to claim 1 to be dehumidified using thermoplastic shaping waste heat, it is characterised in that：Also wrap
It includes dehumidizer and exchanges position driving device and regenerative heater, dehumidizer, which exchanges position driving device, will lead to positioned at removal moisture drying
Dehumidizer in road exchanges position with the dehumidizer in recovery passage, and regenerative heater is equipped in recovery passage.
6. the dehumidifying heat pump according to claim 1 to be dehumidified using thermoplastic shaping waste heat, it is characterised in that：It is dry
It is provided with supplemental heater on drying pipeline two between air stream outlet and hopper air intake vent.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820384213.2U CN208068643U (en) | 2018-03-21 | 2018-03-21 | A kind of dehumidifying heat pump to be dehumidified using thermoplastic shaping waste heat |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820384213.2U CN208068643U (en) | 2018-03-21 | 2018-03-21 | A kind of dehumidifying heat pump to be dehumidified using thermoplastic shaping waste heat |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208068643U true CN208068643U (en) | 2018-11-09 |
Family
ID=64047651
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820384213.2U Expired - Fee Related CN208068643U (en) | 2018-03-21 | 2018-03-21 | A kind of dehumidifying heat pump to be dehumidified using thermoplastic shaping waste heat |
Country Status (1)
| Country | Link |
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| CN (1) | CN208068643U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108284538A (en) * | 2018-03-21 | 2018-07-17 | 史晓昂 | A kind of dehumidifying heat pump and dehumanization method to be dehumidified using thermoplastic shaping waste heat |
-
2018
- 2018-03-21 CN CN201820384213.2U patent/CN208068643U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108284538A (en) * | 2018-03-21 | 2018-07-17 | 史晓昂 | A kind of dehumidifying heat pump and dehumanization method to be dehumidified using thermoplastic shaping waste heat |
| CN108284538B (en) * | 2018-03-21 | 2024-05-07 | 史晓昂 | Dehumidification dryer and dehumidification method for dehumidification by using waste heat of thermoplastic molding |
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|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20181109 |
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| CF01 | Termination of patent right due to non-payment of annual fee |