CN108387074A - Heat pump drying equipment - Google Patents
Heat pump drying equipment Download PDFInfo
- Publication number
- CN108387074A CN108387074A CN201810198117.3A CN201810198117A CN108387074A CN 108387074 A CN108387074 A CN 108387074A CN 201810198117 A CN201810198117 A CN 201810198117A CN 108387074 A CN108387074 A CN 108387074A
- Authority
- CN
- China
- Prior art keywords
- air
- circulating cooling
- coil
- temperature
- cooling water
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000001035 drying Methods 0.000 title claims abstract description 73
- 239000000463 material Substances 0.000 claims abstract description 69
- 239000000498 cooling water Substances 0.000 claims abstract description 52
- 238000010438 heat treatment Methods 0.000 claims abstract description 34
- 238000001816 cooling Methods 0.000 claims description 29
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 19
- 238000009833 condensation Methods 0.000 claims description 7
- 230000005494 condensation Effects 0.000 claims description 7
- 239000003507 refrigerant Substances 0.000 claims description 4
- 230000006835 compression Effects 0.000 claims description 2
- 238000007906 compression Methods 0.000 claims description 2
- 238000001704 evaporation Methods 0.000 claims 1
- 230000008020 evaporation Effects 0.000 claims 1
- 230000008676 import Effects 0.000 claims 1
- 238000009834 vaporization Methods 0.000 claims 1
- 230000008016 vaporization Effects 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 4
- 239000002699 waste material Substances 0.000 description 3
- 238000004378 air conditioning Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B9/00—Machines or apparatus for drying solid materials or objects at rest or with only local agitation; Domestic airing cupboards
- F26B9/06—Machines or apparatus for drying solid materials or objects at rest or with only local agitation; Domestic airing cupboards in stationary drums or chambers
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B23/00—Heating arrangements
- F26B23/001—Heating arrangements using waste heat
- F26B23/002—Heating arrangements using waste heat recovered from dryer exhaust gases
- F26B23/005—Heating arrangements using waste heat recovered from dryer exhaust gases using a closed cycle heat pump system ; using a heat pipe system
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B3/00—Drying solid materials or objects by processes involving the application of heat
- F26B3/28—Drying solid materials or objects by processes involving the application of heat by radiation, e.g. from the sun
- F26B3/30—Drying solid materials or objects by processes involving the application of heat by radiation, e.g. from the sun from infrared-emitting elements
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B3/00—Drying solid materials or objects by processes involving the application of heat
- F26B3/32—Drying solid materials or objects by processes involving the application of heat by development of heat within the materials or objects to be dried, e.g. by fermentation or other microbiological action
- F26B3/34—Drying solid materials or objects by processes involving the application of heat by development of heat within the materials or objects to be dried, e.g. by fermentation or other microbiological action by using electrical effects
- F26B3/347—Electromagnetic heating, e.g. induction heating or heating using microwave energy
Abstract
This heat pump drying equipment includes compressor, condenser, throttling set, evaporator, high-temperature drying chamber, dew point hygrometer, low temperature drying room, circulating cooling water coil, microwave source and infrared source；In high temperature drying room, air is heated to be high temperature air after condenser, high temperature air becomes Hot wet air heating after passing through material, moisture is precipitated by circulating cooling water coil in Hot wet air heating, become hot dry air, hot dry air passes through material, so cycle constantly to drain the moisture of material again by high temperature air is heated to be after condenser；In low temperature drying room, microwave source and infrared source heated material, the moisture in material is set to vaporize, form Hot wet air heating, moisture is precipitated by circulating cooling water coil in Hot wet air heating, becomes dry warm air, dry warm air becomes cold dry air after evaporator, cold dry air again passes through material, and so cycle constantly drains the moisture of material.The advantage that heat pump drying equipment of the present invention has drying effect good, energy saving.
Description
Technical field
This heat pump drying equipment include compressor, condenser, throttling set, evaporator, high-temperature drying chamber, dew point hygrometer,
Low temperature drying room, circulating cooling water coil, microwave source and infrared source；In high temperature drying room, air adds after condenser
Heat is high temperature air, and high temperature air becomes Hot wet air heating after passing through material, and water is precipitated by circulating cooling water coil in Hot wet air heating
Point, become hot dry air, hot dry air passes through material, so cycle constantly will again by high temperature air is heated to be after condenser
The moisture of material is drained；In low temperature drying room, microwave source and infrared source heated material make the moisture in material vaporize, shape
At Hot wet air heating, moisture is precipitated by circulating cooling water coil in Hot wet air heating, becomes dry warm air, and dry warm air passes through evaporator
After become cold dry air, cold dry air again passes through material, so cycle constantly the moisture of material is drained.Heat pump of the present invention is dry
The advantage that dry equipment has drying effect good, energy saving.
Background technology
It is known that in existing heat pump dryer, air is heated to be high temperature air, high temperature air after condenser
Become temperature reduction, the increased Hot wet air heating of humidity after the indoor material of drying, Hot wet air heating becomes after evaporator
Cold dry air, due to evaporator can the heat that generates of a large amount of absorptive condensers, hothouse all will be unable to reach height for a long time
Temperature, waste of energy influence dry materials；When the temperature that condenser generates cannot reach the high temperature of dried material requirement, need
Using heater heated material, at this time since dry room temperature is higher than the temperature of condenser, heat pump cannot work, high warm and humid sky
Also just moisture can not be precipitated in evaporator in gas；In addition, when needing low temperature drying, the heat that heat pump generates can not be by hothouse profit
With causing energy waste.
Invention content
To solve the above-mentioned problems, the present invention provides a kind of heat pump drying equipment.This heat pump drying equipment includes compression
Machine, condenser, throttling set, evaporator, high-temperature drying chamber, dew point hygrometer, low temperature drying room, circulating cooling water coil or cycle are cold
But the critical pieces such as air-coil, microwave source and infrared source.
Refrigerant finally enters from evaporator followed by compressor, air cylinder group, condenser, throttling set and evaporator
Compressor.
High-temperature drying chamber is equipped with dew point hygrometer, measures the dew-point temperature of humid air in high temperature drying room, and dew-point temperature
Send control device to；The temperature of circulating cooling water coil or circulating cooling air-coil is equal to or less than Hot wet air heating dew point temperature
Degree, makes vapor in circulating cooling water coil or circulating cooling air-coil condensation moisture；Circulating cooling water coil with it is dry
Dry outdoor cooling water pump and radiator are connected, and the outer exhaust fan of circulating cooling air-coil and hothouse and cooling fan and dissipate
Hot device is connected, and control device adjusts the internal circulating load of circulating cooling water coil inner cold water or the cooling fan of circulating cooling air-coil
Rotating speed, so that air themperature is equal to or less than dew point
Temperature.
Condenser, material frame, circulating cooling water coil or circulating cooling air-coil are mounted in high temperature drying room, in height
In warm hothouse, material frame is on condenser, and on material frame, circulating cooling water coil or circulating cooling are empty for conduit entrance
Gas coil pipe is mounted in pipeline, and assembling is in pipe outlet, and wind turbine is below condenser；In high temperature drying room, air warp
It is heated to be high temperature air after crossing condenser, high temperature air becomes temperature reduction after passing through the material in high temperature drying room, humidity increases
Big Hot wet air heating, Hot wet air heating are precipitated moisture by circulating cooling water coil, become hot dry air, hot dry air again by
Being heated to be high temperature air after condenser passes through material, wind turbine that air is made so to recycle the moisture constantly by material in high temperature drying room
Drain；High-temperature drying chamber is equipped with microwave source and infrared source, when the temperature that heat pump generates cannot reach dried material requirement
When temperature, using microwave source and infrared source heated material, reach the temperature of dried material requirement.
High temperature drying is also equipped with condenser outside room, when temperature is excessively high in high temperature drying room, high-temperature drying chamber's inner condenser
When cannot work, refrigerant is switched to the condenser working outside high temperature drying room, and low temperature drying room is enable to work normally.
Evaporator, material frame, circulating cooling water coil or circulating cooling air-coil are mounted in low temperature drying room, low
In warm hothouse, material frame face on an evaporator, on material frame, circulating cooling water coil or circulating cooling are empty for conduit entrance
Gas coil pipe is mounted in pipeline, and assembling is in pipe outlet, wind turbine face under the vaporizers；Low temperature drying room is equipped with microwave source
And infrared source, microwave source and infrared source are used for heated material, the moisture in material are made to vaporize, air passes through low temperature drying room
Become Hot wet air heating after interior material, Hot wet air heating first passes through circulating cooling water coil and moisture is precipitated, and becomes temperature reduction, humidity
The dry warm air reduced, dry warm air become cold dry air after evaporator, and cold dry air becomes heat after again passing through material
Humid air, so cycle constantly drain the moisture of material in low temperature drying room；Adjust following for circulating cooling water coil inner cold water
The rotating speed of the cooling fan of circular rector or circulating cooling air-coil, wind turbine make air make the temperature of circulating cooling water coil inner cold water
Equal to room temperature.
Description of the drawings
Fig. 1 is the schematic diagram of heat pump drying equipment of the present invention.
In figure：1, compressor；2, condenser；3, throttling set；4, evaporator；5, high-temperature drying chamber；6, material frame；7, it follows
Ring cooling water coil；8, cooling water pump；9, radiator；10, wind turbine；11, low temperature drying room；12, air flows to；13, microwave source
And infrared source；14, dew point hygrometer.
Specific implementation mode
A specific embodiment, the not limited to this example of specific implementation mode is described below.
With reference to figure 1, in high temperature drying room, material frame is on condenser, and on material frame, cycle is cold for conduit entrance
But water coil or circulating cooling air-coil are mounted in pipeline, and assembling is in pipe outlet, and wind turbine is below condenser.
After heat pump starts, in high temperature drying room, air is heated to be high temperature air after condenser, and high temperature air is worn
Become temperature reduction, the increased Hot wet air heating of humidity after crossing the material in high-temperature drying chamber, when recirculated cooling water coil temperature etc.
When Hot wet air heating dew-point temperature, moisture will be precipitated when passing through circulating cooling water coil in Hot wet air heating, and it is dry to become heat
Therefore air installs dew point hygrometer in high-temperature drying chamber, measures the dew-point temperature of humid air in high temperature drying room, and dew point temperature
Degree sends control device to, and control device adjusts the internal circulating load of circulating cooling water coil inner cold water, makes in circulating cooling water coil
The temperature of cold water is equal to or less than dew-point temperature, and when the temperature of circulating cooling water coil inner cold water is less than dew-point temperature, water steams
Moisture will be precipitated in recirculated cooling water coil condensation in gas.Hot dry air is passed through again by high temperature air is heated to be after condenser
Material, wind turbine make air so recycle constantly to drain the moisture of material in high temperature drying room.
High-temperature drying chamber is equipped with microwave source and infrared source, when the temperature that heat pump generates cannot reach dried material requirement
Temperature when, using microwave source and infrared source heated material, reach the temperature of dried material requirement.
In low temperature drying room, material frame face on an evaporator, conduit entrance is on material frame, circulating cooling water coil
Or circulating cooling air-coil is mounted in pipeline, assembling is in pipe outlet, wind turbine face under the vaporizers；Low temperature drying room
Microwave source and infrared source are installed, microwave source and infrared source are used for heated material, so that the moisture in material is vaporized, air is worn
Become Hot wet air heating after the material crossed in low temperature hothouse, Hot wet air heating first passes through circulating cooling water coil and moisture is precipitated, becomes
The dry warm air that temperature reduces, humidity reduces, dry warm air become cold dry air, cold dry air after moisture is precipitated in evaporator
Become Hot wet air heating after again passing through material, so cycle constantly drains the moisture of material in low temperature drying room；Adjust cycle
The internal circulating load of cooling water coil inner cold water, the temperature that wind turbine makes air make circulating cooling water coil inner cold water are equal to room temperature, room temperature
Circulating cooling water coil the temperature difference of Hot wet air heating and circulating cooling water coil can be made to increase, make Hot wet air heating be easy recycle it is cold
But water coil condensation moisture.
Existing heat pump dryer, Hot wet air heating is that moisture is precipitated in evaporator condensation, due to condenser and evaporator
The temperature difference is up to 70 degree, and Hot wet air heating returns condenser after evaporator, is equivalent to the indoor unit and outdoor unit of air-conditioning all
It is placed on same room with them, the result is that cannot freeze, heating effect also can not show a candle to electrical heating, because cold air neutralizes hot gas, steam
Send out device can the heat that generates of a large amount of absorptive condensers, hothouse will all be unable to reach high temperature, waste of energy, influence for a long time
Dry materials.
In heat pump drying equipment of the present invention, when the Hot wet air heating that temperature is high, humidity is big passes through circulating cooling water coil,
Air may be less than 10 degree with the temperature difference of circulating cooling water coil when making Water vapor condensation；For example, when the temperature of hothouse is 40
When degree, relative humidity are 80%, dew-point temperature is 36 degree, and therefore, Hot wet air heating temperature after circulating cooling water coil only drops
Low 4 degree, moisture can be precipitated on circulating cooling water coil, and circulating cooling water coil will not the warm that generates of a large amount of absorptive condensers
Amount.Therefore existing heat pump dryer is compared, heat pump drying equipment of the present invention has high temperature and drying effect good, energy saving
Advantage.
Claims (1)
1. heat pump drying equipment, it is characterised in that：This heat pump drying equipment includes compressor, condenser, throttling set, evaporation
Device, high-temperature drying chamber, dew point hygrometer, low temperature drying room, circulating cooling water coil or circulating cooling air-coil, microwave source and infrared
Line source；Refrigerant finally enters compression followed by compressor, air cylinder group, condenser, throttling set and evaporator from evaporator
Machine；Condenser, material frame, circulating cooling water coil or circulating cooling air-coil are mounted in high temperature drying room, high temperature drying
Room is equipped with dew point hygrometer, measures the dew-point temperature of humid air in high temperature drying room, and dew-point temperature is sent to control device；It follows
The temperature of ring cooling water coil or circulating cooling air-coil is equal to or less than Hot wet air heating dew-point temperature, and vapor is made to recycle
Cooling water coil or circulating cooling air-coil condensation moisture；The outer cooling water pump of circulating cooling water coil and hothouse and
Radiator is connected, and circulating cooling air-coil is connected with the outer exhaust fan of hothouse and cooling fan and radiator, control device
The rotating speed for adjusting the internal circulating load of circulating cooling water coil inner cold water or the cooling fan of circulating cooling air-coil, makes circulating cooling
Air themperature is equal to or less than dew-point temperature in the temperature or circulating cooling air-coil of water coil inner cold water；In high-temperature drying chamber
Interior, material frame is on condenser, and conduit entrance is on material frame, circulating cooling water coil or circulating cooling air-coil peace
In pipeline, assembling is in pipe outlet, and wind turbine is below condenser；In high temperature drying room, air passes through condenser
After be heated to be high temperature air, high temperature air pass through become after the material in high temperature drying room temperature reduce, the increased heat of humidity it is wet
Air, Hot wet air heating are precipitated moisture by circulating cooling water coil, become hot dry air, after hot dry air is again by condenser
Being heated to be high temperature air passes through material, wind turbine to make air so recycle constantly to drain the moisture of material in high temperature drying room；It is high
Warm hothouse is equipped with microwave source and infrared source, when the temperature that heat pump generates cannot reach the temperature of dried material requirement,
Using microwave source and infrared source heated material, reach the temperature of dried material requirement；Condensation is also installed outside high temperature drying room
Device, when temperature is excessively high, high-temperature drying chamber's inner condenser cannot work in high temperature drying room, refrigerant is switched to high-temperature drying chamber
Outer condenser working enables low temperature drying room to work normally；In low temperature drying room, material frame face on an evaporator, pipeline
Import is on material frame, and circulating cooling water coil or circulating cooling air-coil are mounted in pipeline, and assembling is in pipeline
Outlet, wind turbine face under the vaporizers；Evaporator, material frame, circulating cooling water coil or circulating cooling air-coil are mounted on low
In warm hothouse；Low temperature drying room is equipped with microwave source and infrared source, and microwave source and infrared source are used for heated material, make object
Moisture vaporization in material, air become Hot wet air heating after passing through the indoor material of low temperature drying, and it is cold that Hot wet air heating first passes through cycle
But moisture is precipitated in water coil, becomes the dry warm air that temperature reduces, humidity reduces, and dry warm air becomes dry and cold after evaporator
Air, cold dry air become Hot wet air heating after again passing through material, so moisture of the cycle constantly by material in low temperature drying room
Drain；Adjust the rotating speed of the internal circulating load of circulating cooling water coil inner cold water or the cooling fan of circulating cooling air-coil, wind turbine
The temperature that air makes circulating cooling water coil inner cold water is set to be equal to room temperature.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810198117.3A CN108387074B (en) | 2018-03-07 | 2018-03-07 | Heat pump drying equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810198117.3A CN108387074B (en) | 2018-03-07 | 2018-03-07 | Heat pump drying equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108387074A true CN108387074A (en) | 2018-08-10 |
| CN108387074B CN108387074B (en) | 2020-09-22 |
Family
ID=63067407
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810198117.3A Active CN108387074B (en) | 2018-03-07 | 2018-03-07 | Heat pump drying equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108387074B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113124648A (en) * | 2021-04-12 | 2021-07-16 | 北京航空航天大学 | Drying system and method |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201391956Y (en) * | 2009-04-22 | 2010-01-27 | 上海朗诗建筑科技有限公司 | Household fresh air dehumidifier |
| CN101799206A (en) * | 2009-02-11 | 2010-08-11 | 江左 | Heat pump water heater |
| CN103940203A (en) * | 2014-03-28 | 2014-07-23 | 中国农业大学 | Microwave heat pump low-oxygen drying device and operating method thereof |
| KR20170016750A (en) * | 2015-08-04 | 2017-02-14 | 엘지전자 주식회사 | Clothes treating apparatus |
| CN106802068A (en) * | 2017-01-23 | 2017-06-06 | 广州能之原科技股份有限公司 | A kind of tunnel type wood single-plate drying device |
| WO2017214111A1 (en) * | 2016-06-06 | 2017-12-14 | Labstrong Corp. | Device for the purification of water using a heat pump |
-
2018
- 2018-03-07 CN CN201810198117.3A patent/CN108387074B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101799206A (en) * | 2009-02-11 | 2010-08-11 | 江左 | Heat pump water heater |
| CN201391956Y (en) * | 2009-04-22 | 2010-01-27 | 上海朗诗建筑科技有限公司 | Household fresh air dehumidifier |
| CN103940203A (en) * | 2014-03-28 | 2014-07-23 | 中国农业大学 | Microwave heat pump low-oxygen drying device and operating method thereof |
| KR20170016750A (en) * | 2015-08-04 | 2017-02-14 | 엘지전자 주식회사 | Clothes treating apparatus |
| WO2017214111A1 (en) * | 2016-06-06 | 2017-12-14 | Labstrong Corp. | Device for the purification of water using a heat pump |
| CN106802068A (en) * | 2017-01-23 | 2017-06-06 | 广州能之原科技股份有限公司 | A kind of tunnel type wood single-plate drying device |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113124648A (en) * | 2021-04-12 | 2021-07-16 | 北京航空航天大学 | Drying system and method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108387074B (en) | 2020-09-22 |
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