CN207635813U - A kind of heat pump drying device - Google Patents
A kind of heat pump drying device Download PDFInfo
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- CN207635813U CN207635813U CN201721733922.9U CN201721733922U CN207635813U CN 207635813 U CN207635813 U CN 207635813U CN 201721733922 U CN201721733922 U CN 201721733922U CN 207635813 U CN207635813 U CN 207635813U
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- 238000001035 drying Methods 0.000 title claims abstract description 199
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- 238000007791 dehumidification Methods 0.000 description 2
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Abstract
The utility model discloses a kind of heat pump drying device, which includes heat pump cycle subsystem and drying cycles subsystem；Heat pump cycle subsystem is formed by piping connection compressor, calorie adjusting device, condenser, throttling element, evaporator, precool heat exchanger device；Drying cycles subsystem includes hothouse, air duct, drying air fan；Drying air fan, precool heat exchanger device, evaporator and condenser are installed in air duct or its inlet and outlet is connect with front and back air duct respectively；Temperature sensor and humidity sensor are installed in the hothouse or air duct adjacent thereto.The utility model solves the problems such as few, the dry scope of application of existing drying device function is small, energy consumption is big, damage is big, discharge is big, realize the diversity of drying system function, high efficiency expands the scope of application, reduces the discharge of dried object damage and exhaust gas, and improving flexibility and the reliability of heat pump system.
Description
Technical field
The utility model is related to a kind of drying device and drying means, and in particular to a kind of heat pump drying device and its use
Method.
Background technology
Drying device common in the art is divided into electrical drying device and heat pump drying device, and drying device is often answered
Field is dried for clothes, material, chemical industry, food or farming, forestry, animal husbandry, sideline production and fishery product etc..And existing drying device and its drying side
Usually there are the following problems for method：It usually relies on heating equipment air is heated into and object is dried again after high temperature, dry
Dry gas stream temperature is high, has a single function, and cannot use diversified drying means according to the characteristic of dried object, dried object is easily damaged,
Rotten, dry scope of application very little usually also needs to that a large amount of exhaust gas and waste heat is discharged, energy consumption is big, drying efficiency is low, easy to pollute
Environment, and the adaptability that common Analysis of Heat Pump Drying System changes drying process is small, and liquid hit phenomenon, shadow easily occur for compressor
The reliability of acoustic system.
Drying cycles system is usually provided in existing heat pump drying device, the air in system is by heat pump circulating system
Condenser heated after form high-temperature gas, high-temperature gas enters back into hothouse and carries out drying dehumidification to dried object, does
Dry room come out high temperature and humidity air be sent back to again at evaporator carry out cooling analysis it is wet, then air is heated by condenser again,
And be sent into hothouse, so cycle completes drying work；During drying cycle, due to compressor persistently does work and constantly
It is provided to drying cycles system and increases heat newly, therefore the air-flow in drying cycles system constantly assembles newly-increased heat and lasting liter
Temperature, in this case, the gas flow temperature after condenser comes out can gradually rise to obtain higher, can not only influence the efficiency of heat pump system
With normal work and also high temperature gas flow be also easy to damage dried object.It is partly improved technology, in above-mentioned drying cycles system-based
Increase an exhaust outlet and air inlet, when in hothouse when the temperature is excessively high, can be by heat extraction mouth by the air-flow of high temperature and humidity
The phenomenon that drying cycles system is discharged, and supplements new air from air inlet, dry hyperthermia and superheating can be reduced in this way, but this change
But need external environment that a large amount of high-temp waste gas are discharged into technology, energy consumption is big, drying efficiency is low, environment also easy to pollute.
Patent CN201210129002.1 discloses a kind of heat pump clothes dryer control method and heat pump clothes dryer, including has
The heat pump module of compressor, main condenser, throttling set and evaporator further includes auxiliary condenser and is used for auxiliary condenser
Cool down to adjust the auxiliary condensation fan of load with compressor surface；The mechanism of the heat pump clothes dryer dry technology is according to humidity
Drying process is divided into first stage and second stage by detection case, and two stage differences essentially consist in the change of evaporating temperature
Change, wherein the evaporating temperature in rear stage requires the evaporating temperature less than the last stage, and according to detection main condenser in each drying rank
Section temperature spot come determine whether enter second stage, by start auxiliary condenser cause second stage evaporating temperature indirectly
Reduction.The patented technology is can be seen that in addition to drying process is divided into two stages from the technology mechanism of above-mentioned patent, and
It is arranged outside different evaporating temperatures, has substantially still followed conventional high temperature drying technology, which fails to solve conventional drying
The above problem present in technology.Moreover, the auxiliary condenser described in the patent is connected to behind condenser, in heat pump cycle
The refrigerant of compressor discharge is introduced into condenser and is cooled down, and the temperature of refrigerant after cooling has declined many, with
Outside air does not have an apparent temperature difference, and under this state, liquid refrigerant after cooling enters back into auxiliary condenser, even if auxiliary
Condenser is in open state, and the heat-sinking capability of auxiliary condenser also becomes very little, in this way to the working condition of heat pump system
It takes less than apparent adjustment effect, is in addition also fitted without forecooler in the technology, if the variation of heat pump system operating mode is greatly, flow into
The refrigerant variation of evaporator also greatly, easily causes refrigerant to be evaporated in evaporator not exclusively and compressor is caused to return liquid damage
It ruins, thus the patented technology does not have the multifarious ability of functions/drying.
Utility model content
To solve the above problems, the utility model is intended to provide a kind of heat pump drying device and its drying means, for increasing
Add the diversification of functions/drying, expand the dry scope of application, improves drying efficiency, reduces the damage to dried object, and improve heat
The flexibility of pumping system and the purpose of reliability.
The specific technical solution of the utility model is：A kind of heat pump drying device, the heat pump drying device include that heat pump follows
Loop subsystems and drying cycles subsystem；Heat pump cycle subsystem include compressor, calorie adjusting device, condenser, throttling element,
Evaporator, precool heat exchanger device and associated pipe part；Drying cycles subsystem includes hothouse, air duct, drying air fan；Its feature exists
In：By pipeline fitting by compressor, calorie adjusting device, condenser, throttling element, evaporator, precool heat exchanger device inlet and outlet according to
Secondary to be connected, the outlet of precool heat exchanger device is connect with compressor air suction mouth, forms heat pump cycle subsystem refrigerant circulation loop；It is dry
The air inlet and air outlet of room are connected with corresponding air duct respectively, and drying air fan is installed in air duct or drying air fan inlet and outlet
It is connect respectively with front and back air duct, forms drying cycles subsystem air circulation loop；Precool heat exchanger device, evaporator, condenser
It is installed in air duct or respective inlet and outlet is connect with front and back air duct respectively；In the hothouse or air duct adjacent thereto
Temperature sensor and humidity sensor are installed.
Further, the calorie adjusting device be include air conditioning heat exchanger and adjust wind turbine composition air it is cold
But formula calorie adjusting device or be the Water cooling type heat for including water cooling type heat exchanger, water pump and pipe fitting and external water route composition
Quantity regulating device, or be include transpiration-cooled heat exchanger, liquid distributor, filler, adjust wind turbine, water-accepting basin, water pump, pipe fitting and
The transpiration-cooled calorie adjusting device of water pipe composition.
Further, the air-cooled type calorie adjusting device, including adjust wind turbine and air conditioning heat exchanger, institute
The adjusting wind turbine stated is multi gear wind turbine or speed-changing draught fan；The air conditioning heat exchanger is single heat exchanger or is followed with heat pump
Condenser in loop subsystems shares the same air-cooled type heat exchanger；When using the shared same air-cooled type heat exchanger
When scheme, by partition board by the air circulation side of common heat exchanger be separated into two parts, both ratio according to design heat exchange
Amount needs to be determined, in this way, separation being divided into the heat exchanger for two parts, a portion conduct for passing through air side
Condenser in the heat pump cycle subsystem uses, and is set in the air duct, and another part is as the air cooling
Air conditioning heat exchanger in formula calorie adjusting device uses, and is set to outside the air duct；Refrigerant inlet, which is located at, to be used as
The side of air conditioning heat exchanger, and be connected with exhaust outlet of compressor by pipeline, refrigerant outlet is located at as condenser
Side, and be connected with throttling element by pipeline.
Further, which further includes water receiving disc apparatus and dedusting filter, and water receiving disc apparatus is arranged in evaporator
With the lower section of precool heat exchanger device；Dedusting filter is installed on the air duct between hothouse outlet and precool heat exchanger device.
Further, the hothouse is fixed, vibrating type, roller or rotational structure.
Further, the condenser, evaporator, precool heat exchanger device be respectively and independently separated, both parallel combinations or three
Person's parallel combinations, and on dry gas stream direction, precool heat exchanger device is located at upstream, evaporator is located at precool heat exchanger device and condenser
Between be sequentially arranged.
The drying means of heat pump drying device includes high temperature drying working method, first presets the drying work temperature of a high temperature
Range is spent, by adjusting air quantity, water flow or compressor work amount so that the heat dissipation capacity of calorie adjusting device external environment is small
In the amount of work of compressor, the gas flow temperature of hothouse is promoted to rise in the values of high temperature, in drying process, passed through
Temperature sensor monitors dry indoor temperature in real time, when temperature range upper limit value of the temperature of hothouse higher than setting, increases
Heat dissipation capacity of the big calorie adjusting device to outside so that calorie adjusting device is more than the acting of compressor to external heat dissipation capacity
Amount, drying temperature are gradually decrease to values, when temperature is less than the temperature range lower limiting value of setting, reduce heat regulation
Heat dissipation capacity of the device to outside so that calorie adjusting device is less than the amount of work of compressor, drying temperature to external heat dissipation capacity
Values are gradually increased to, in this way, by persistently detecting and controlling, by drying temperature control in scheduled high temperature range
Work, when humidity sensor detects that the humidity in air-flow is less than the humidity requirement of setting, drying device is stopped.
The drying means of heat pump drying device includes similar air drying working method, first presets one similar to the dry of room temperature
Dry operating temperature range, by adjusting air quantity, water flow or compressor operating amount so that heat dissipation of the calorie adjusting device to outside
Amount is suitable with the amount of work of compressor, promotes the gas flow temperature in hothouse in the range of similar room temperature, in drying process, leads to
Excess temperature sensor monitors dry indoor temperature in real time, when temperature range upper limit value of the temperature of hothouse higher than setting,
Increase calorie adjusting device to external heat dissipation capacity so that calorie adjusting device is more than the acting of compressor to external heat dissipation capacity
Amount, drying temperature are gradually decrease to values, when temperature is less than the temperature range lower limiting value of setting, reduce heat regulation
Heat dissipation capacity of the device to outside so that calorie adjusting device is less than the amount of work of compressor, drying temperature to external heat dissipation capacity
Values are gradually increased to, in this way, by persistently detecting and controlling, promote the temperature in hothouse in the model of similar room temperature
Interior work is enclosed, when the humidity sensor of hothouse detects that the humidity in air-flow is less than the humidity requirement of setting, dry dress
It sets and is stopped.
The drying means of heat pump drying device includes low temperature drying working method, first presets the drying work temperature of a low temperature
Range is spent, by adjusting air quantity, water flow or compressor operating amount so that calorie adjusting device is more than pressure to external heat dissipation capacity
The amount of work of contracting machine promotes the gas flow temperature in hothouse to be reduced to the predetermined range of low temperature drying；In drying process, pass through
Temperature sensor monitors dry indoor temperature in real time, when drying temperature upper limit value of the temperature higher than setting, increases heat tune
Heat dissipation capacity of the regulating device to outside so that adjust the amount of work that calorie adjusting device is more than compressor to external heat dissipation capacity, temperature
Degree be gradually lowered in values, when temperature be less than setting drying temperature lower limiting value when, reduce calorie adjusting device to
External heat dissipation capacity so that calorie adjusting device is less than the amount of work of compressor to external heat dissipation capacity, and temperature is gradually increased to
In values, in the process, if detecting that evaporator surface has apparent frosting, compressor break-off to pass through dry wind
Continuing to run with for machine defrosts, and restarts compressor after completion defrosting and enters low temperature drying work, in this way, passing through lasting detection
With control, dry air temperature control is worked in scheduled low temperature range, until humidity sensor detects in air-flow
When the humidity that humidity is less than setting requires, drying device is stopped.
The drying means of heat pump drying device dries working method including multi-temperature stage by stage, by high temperature dry processes, class
Like characteristic or drying of two or two or more the working methods according to dried object in air drying method, low temperature drying method
The requirement of efficiency and combine, different drying means is used stage by stage in the drying process, in different various work sides
In method, by adjusting the difference between the outside heat dissipation capacity of calorie adjusting device and compressor work amount so that drying cycles subsystem
Range of the gas flow temperature in air duct up to high temperature, similar room temperature or low temperature predetermined value in system；And it is monitored in real time by temperature sensor
It is outside to increase calorie adjusting device when drying temperature upper limit value of the temperature higher than corresponding method setting for dry indoor temperature
Heat dissipation capacity so that the outside heat dissipation capacity of calorie adjusting device is more than the amount of work of compressor, and temperature is gradually lowered to preset value model
In enclosing, when temperature is less than the drying temperature lower limiting value of corresponding method setting, reduce the outside heat dissipation capacity of calorie adjusting device so that
The heat dissipation capacity for adjusting calorie adjusting device is less than the amount of work of compressor, and temperature is gradually increased in values, in this way, logical
Persistently Detection ＆ Controling are crossed, dry air temperature control by stages is worked within the scope of predetermined temperature, are passed until working as humidity
When sensor detects that the humidity in air-flow is less than the humidity requirement of setting, drying device is stopped.
The utility model can solve that existing drying device function is few, the dry scope of application is small, energy consumption is big, damage is big, discharge
The problems such as big, the diversity of drying system function is realized, high efficiency expands the scope of application, reduces dried object damage and give up
The discharge of gas, and improve flexibility and the reliability of heat pump system.The beneficial effects of the utility model are specific as follows：
1, the heat pump drying device of the utility model and its application method have the diversity of functions/drying and high efficiency, suitable
With the damage that range is wide, reduction is to dried object.Since the refrigerant gas temperature that high temperature is discharged in compressor is high, have with extraneous air
There is the larger temperature difference, thus the calorie adjusting device must connect with exhaust outlet of compressor, in this way, calorie adjusting device is
Heat regulation effect with bigger, it is ensured that the heat pump drying device and its application method of the utility model have functional diversity
The characteristics of, by adjusting the difference between the outside heat dissipation capacity of calorie adjusting device and compressor work amount, change drying cycles
High temperature drying, similar air drying, low temperature drying or more Wen Gan stage by stage can be realized in the caloric receptivity and thermal discharge of system air
Dry four kinds or more diversified dry work characteristics expand drying device in this way, improving the diversity of drying device function
The scope of application and flexibility, the utility model may be used on high temperature drying field (such as heat safe clothing, crops),
Similar air drying field (being such as suitble to food dry under similar room temperature, fruit, seed, medicinal material), low temperature drying field are (such as
Need fresh-keeping meat, veterinary antibiotics etc.) or temperature-resistant dry field (such as chemical materials, construction material, clothing
Deng).In addition, selecting different drying modes according to the different feature of dried object, damage of the drying process to dried object is reduced, and
Improve drying efficiency.
2, the discharge of the heat pump drying device of the utility model and its application method without exhaust gas, effect on environment are small.Due to
The air-flow of drying cycles subsystem in the utility model heat pump drying device belongs to closed cycle at work, in addition to heat tune
For regulating device as needed outside the externally discharged environment of partial heat, other components there is no exhaust gas, useless in the course of work
The discharge of heat, it is small to external environment influence.
3. the heat pump drying device and its application method of the utility model improve modulability and the flexibility of heat pump system.It is logical
Caloric receptivity and thermal discharge that calorie adjusting device changes drying cycles subsystem air are crossed, and then adjusts the air in circulation air path
Temperature, adjust high sensitivity, governing speed is fast, adapts to variation requirement of a variety of drying means for temperature, and to follow
Component in ring maintains normal operating temperature, inhibits to cause overload of compressor due to temperature and the hypertonia of refrigerant
Phenomenon avoids compressor from frequently constantly being stopped and restarted in a short time, ensures compressor in safe and stable work
State mitigates the burden of compressor.
4. the heat pump drying device and its application method of the utility model improve the adaptability and reliability of heat pump system.This
The drying cycles device of utility model is in realizing the multifarious work of functions/drying, the work of corresponding heat pump cycle subsystem
It is also larger to make changed condition, if technical finesse is improper, easily leads to compressor and returns liquid damage.For this purpose, in institute in the utility model
It is mounted with precool heat exchanger device after the evaporator stated, is the high temperature and humidity of hothouse discharge by the air-flow outside precool heat exchanger device
Air-flow, in this way, precool heat exchanger device can be complete by the refrigerant for flowing into precool heat exchanger device under various dry working methods easily
It is evaporated to gaseous refrigerant, prevents compressor from liquid damage phenomenon occur back, improves the reliability of heat pump system, on the other hand also may be used
To obtain the dehumidifying effect that the precooling to drying cycles system airflow acted on, improved subsequent evaporation device, drying efficiency is improved.
Description of the drawings
Fig. 1 is the main parts size exploded view of utility model device；
Fig. 2 is the implementation principle diagram that utility model device is applied in split type unit；
Fig. 3 is that the structure that utility model device is applied in split type unit implements diagram；
Fig. 4 is the implementation principle diagram that utility model device is applied in monoblock type unit；
Fig. 5 is that the structure that utility model device is applied in monoblock type unit implements diagram；
Fig. 6 is the implementation principle diagram of the air-cooled type calorie adjusting device in utility model device；
Fig. 7 is the implementation principle diagram of the Water cooling type calorie adjusting device in utility model device；
Fig. 8 is the implementation principle diagram of the transpiration-cooled calorie adjusting device in utility model device；
Fig. 9 is that the air conditioning heat exchanger of air-cooled type calorie adjusting device and condenser are total in utility model device
With the schematic diagram of heat exchanger.
Specific implementation mode
The utility model is described in further detail with reference to embodiment, but the embodiment of the utility model is not
It is limited to this.
A kind of heat pump drying device of the utility model, reference can be made to attached drawing 1- attached drawings 5, by heat pump cycle subsystem and drying
Two part of cycle subsystem collectively constitutes.The heat pump cycle subsystem includes：Compressor (1-1), calorie adjusting device (1-
3), condenser (1-2), throttling element (1-4), evaporator (1-5), precool heat exchanger device (1-6).The drying cycles subsystem packet
It includes：Hothouse (2-1), air duct (2-2), drying air fan (2-3).
In the heat pump cycle subsystem, pass through pipeline fitting, the exhaust outlet and calorie adjusting device of compressor (1-1)
(1-3) import is connected, and calorie adjusting device (1-3) outlet is connected with condenser (1-2) import, condenser (1-2) exports and section
Stream part (1-4) import is connected, throttling element (1-4) outlet is connected with evaporator (1-5) import, evaporator (1-5) outlet and precooling
Heat exchanger (1-6) import is connected, precool heat exchanger device (1-6) outlet is sequentially connected with compressor (1-1) air entry, thus constitutes
Refrigerant circulation loop in heat pump cycle subsystem.
In the drying cycles subsystem, hothouse (2-1) at least one air inlet and at least one air outlet,
(2-2) is connected with hothouse air inlet and outlet respectively in air duct, and drying air fan (2-3) is installed on suitable position in air duct, by
This constitutes the airflow circulating circuit of drying cycles subsystem.Drying air fan can be d multi gears wind turbine or speed-changing draught fan, be single
Wind turbine or multiple wind turbines are collectively constituted by mode in parallel or series.It may also include dedusting filter in drying cycles subsystem
(2-4), dedusting filter are installed in the air duct between hothouse (2-1) outlet and precool heat exchanger device (1-6)；Drying cycles
Subsystem may also include bactericidal device (2-5), and bactericidal device (2-5) is installed in hothouse (2-1) or hothouse (2-1) import
Between condenser (1-2).
Precool heat exchanger device (1-6), evaporator (1-5), condenser (1-2) in the heat pump cycle subsystem are mounted on
In air duct in drying cycles subsystem or respective inlet and outlet is connect with front and back air duct respectively, along drying cycles subsystem
Airflow direction, precool heat exchanger device (1-6) is located at upstream, evaporator (1-5) is located between precool heat exchanger device and condenser (1-2)
Arrangement.
The calorie adjusting device (1-3) is isolated in the outside of drying cycles subsystem.Heat pump cycle subsystem is also
Including water receiving disc apparatus (1-7), water receiving disc apparatus is located at below evaporator (1-5) and precool heat exchanger device (1-6).Heat regulation
Device (1-3) is air-cooled type calorie adjusting device (see Fig. 6) or Water cooling type calorie adjusting device (see Fig. 7) or evaporation
Cooled calorie adjusting device (see Fig. 8).
The air-cooled type calorie adjusting device includes air conditioning heat exchanger (3-1) and adjusting wind turbine (3-2).Institute
The adjusting wind turbine stated can be multi gear wind turbine or speed-changing draught fan, it is common by mode in parallel or series by single wind turbine or multiple wind turbines
Composition.When work, according to the needs of drying means, adjusting wind turbine can drive the flowing of the air in external environment to change air conditioning
The partial heat of refrigerant is discharged into external environment in hot device.The Water cooling type calorie adjusting device includes mainly water-cooling type
Heat exchanger (3-3), water pump (3-4) and pipe fitting (3-5) and external water route have refrigerant chamber and flow in water cooling type heat exchanger
Chamber, by the connection of pipe fitting, external water route is connect with pump entrance, the entrance of exit of pump and water cooling type heat exchanger flow chamber
It is connected, the outlet of water cooling type heat exchanger flow chamber is connect with external water route, passes through piping connection, the entrance of refrigerant chamber and compression
Machine outlet is connected, the outlet of refrigerant chamber is connected with the condenser inlet of heat pump cycle subsystem；When work, according to different dryings
The partial heat of refrigerant in water cooling type heat exchanger is discharged into outside by the requirement of method setting, the external corresponding water of water pump driving
In water.The transpiration-cooled calorie adjusting device mainly include adjust wind turbine (3-2), transpiration-cooled heat exchanger (3-6),
Liquid distributor (3-7), filler (3-8), water-accepting basin (3-9), water pump (3-4), pipe fitting (3-5) and water pipe (3-10).Pass through
The connection of pipe fitting, water pump (3-4) inlet tube is located in water-accepting basin (3-9), water pump (3-4) outlet is connected with liquid distributor (3-7)；
Liquid distributor (3-7) is set to the upper surface of transpiration-cooled heat exchanger (3-6) and filler (3-8), and water-accepting basin (3-9) is connected with moisturizing
Pipeline (3-10), can be to water-accepting basin (3-9) amount of makeup water, transpiration-cooled heat exchanger (3-6) by water pipe (3-10)
On refrigerant inlet be connected with compressor outlet, the refrigerant outlet of transpiration-cooled heat exchanger and heat pump cycle subsystem
Condenser inlet is connected.When work, according to the needs of drying means, adjusting wind turbine can drive the flowing of the air in external environment will
The partial heat of refrigerant is discharged into external vapor and air in transpiration-cooled heat exchanger.
Further, when calorie adjusting device uses air-cooled type calorie adjusting device, and air-cooled type heat
When air conditioning heat exchanger (3-1) in regulating device shares the same heat exchanger with the condenser (1-2) in dry subsystem
(referring to Fig. 9).Two parts are divided into heat exchanger to be separated by partition board (3-11) in air side, the ratio of the two is according to design
Heat exchange amount needs be determined, in this way, by separation being divided into the heat exchanger for two parts of air circulation side, wherein
A part is used as the condenser in dry subsystem, another part is as the air in air-cooled type calorie adjusting device
Heat exchanger is adjusted to use.Being partially disposed in drying cycles subsystem air duct as condenser is used as air conditioning heat exchanger
It is partially disposed in outside drying cycles subsystem air duct.The entrance (3-12) of refrigerant is set to one as air conditioning heat exchanger
Side, and be connected with exhaust outlet of compressor by pipeline；Refrigerant outlet (3-13) is set to as the cold of drying cycles subsystem
Condenser side, and be connected with throttling element (1-4) by pipeline.
Further, the structure of drying device is split type or monoblock type.The structure chart and schematic diagram of split type drying device
Attached drawing 2 and attached drawing 3 are can be found in, the structure chart and schematic diagram of monoblock type can be found in attached drawing 4 and attached drawing 5.
Further, hothouse is fixed, vibrating type, roller or rotational structure.Condenser is fin-tube type, light pipe
Formula, coiled, coil pipe type, board-like or parallel flow heat exchanger.Evaporator is fin-tube type, light pipe type, coiled, board-like, coiled pipe
Formula or parallel flow heat exchanger.Precool heat exchanger device is fin-tube type, light pipe type, coiled, board-like, coil pipe type or parallel flow type heat exchange
Device.Air conditioning heat exchanger is fin-tube type, light pipe type, coiled, board-like, coil pipe type or parallel flow heat exchanger.Water-cooling type changes
Hot device is shell-tube type, bushing type, board-like, pot type or parallel flow heat exchanger.Transpiration-cooled heat exchanger fin-tube type, light pipe type,
Coiled, board-like, coil pipe type or parallel flow heat exchanger.Throttling element is heating power expansion valve, electric expansion valve, capillary, throttling
Valve or restricting orifice.
Further, the condenser (1-2), evaporator (1-5), precool heat exchanger device (1-6) be respectively and independently separated, two
Person's parallel combinations or three's parallel combinations, and on dry gas stream direction, precool heat exchanger device is located at upstream, evaporator is located at precooling
Form between heat exchanger and condenser is sequentially arranged.
The concrete operating principle of the present apparatus is：
When the described heat pump cycle subsystem work, the gaseous refrigerant of compressor (1-1) discharge high temperature and pressure flows into heat
Quantity regulating device (1-3), according to the needs of the drying working method of setting, the gaseous refrigerant of high temperature and pressure is filled in heat regulation
It will be in partial condensation hot driving to external environment under the effect of setting.Refrigerant is come out by calorie adjusting device, flows into condenser (1-
2), refrigerant rejects heat to the refrigerant for being transformed into liquid after the air-flow in air duct by condenser, then the system of liquid
Cryogen passes through throttling element (1-4) and enters evaporator (1-5) afterwards, and refrigerant evaporates in evaporator and absorbs air duct interior air-flow
Flow into precool heat exchanger device (1-6) after heat again, refrigerant has been realized after absorbing the heat of air duct interior air-flow in precool heat exchanger device
Full vaporization enters back into compressor after even overheating, and so realizes the refrigerant working cycles of heat pump subsystem.
When the described drying cycles subsystem work, under the driving of drying air fan (2-3), air-flow is at hothouse (2-1)
It is mixed with dried object, the air-flow that high temperature and humidity is formed after the part moisture content of absorption dehydration object exports outflow from hothouse and leads to
It crosses air duct (2-2) and flows through precool heat exchanger device (1-6), air-flow is precooled under the action of precool heat exchanger device (1-6) and turned
Become the air-flow of the nearly saturation state of humidity, air-flow flows subsequently through evaporator (1-5), and the air-flow of the nearly saturation state of humidity is in evaporator
In release amount of heat and being precipitated after water droplet becomes low-temperature airflow.Low-temperature airflow passes through condenser (1-2) and absorbs refrigerant
In heat, re-form the small dry gas stream of relative humidity, dry gas stream returns to hothouse (2-1), further to dried object
Work is dried in body.So realize the working cycles of drying cycles subsystem.
The cool-down dehumidification of cooling and evaporator (1-5) of the air-flow during drying cycles including precool heat exchanger device (1-6),
The heat temperature raising of condenser (1-2) and the dehydration and drying process of dried object.These above-mentioned processes are to rely on heat pump cycle subsystem
Come what is completed.Accordingly, refrigerant includes precool heat exchanger device under the acting effect of compressor (1-1) in heat pump cycle subsystem
(1-6) absorbs heat, evaporator (1-5) heat absorption, condenser (1-2) exothermic process.According to law of conservation of energy, the pass of each relationship amount
It is that expression formula is：Q precool heat exchanger device heat absorption+Q evaporator heat absorption+W compressor works=Q calorie adjusting device heat release+Q condensers
Heat release, it is seen then that the size variation of the external heat dissipation capacity of calorie adjusting device has the working condition of drying system in drying process
Important adjustment effect.Calorie adjusting device is connected with exhaust outlet of compressor, it is real by the adjustment effect of calorie adjusting device
Now to the adjusting of the Process of absorption or liberation of heat amount of drying cycles subsystem, and then realizes the diversity of hothouse gas flow temperature, plays controllably,
Accurately, accurately, in real time and the purpose that automatically controls.Precool heat exchanger device (1-6) can ensure that refrigeration after being installed on evaporator (1-5)
Agent can be achieved to completely vaporize before entering compressor, prevents compressor under various dry working methods from liquid hit phenomenon occur, carries
The reliability of high heat pump system, and precooling effect can be carried out to the air-flow in drying cycles subsystem, improve subsequent evaporation device
Cooling and dehumidifying ability and drying efficiency.
Temperature sensor and humidity sensor, temperature sensing are installed in the hothouse or in air duct adjacent thereto
Device is used to detect and control the temperature of hothouse, humidity condition and determining drying of the humidity sensor mainly for detection of hothouse
Whether work is completed.The heat pump drying device of the utility model has high temperature drying, similar air drying, low temperature drying or sublevel
The diversified drying means such as section multi-temperature drying.
Just these types of drying means makes detailed introduction below：
High temperature drying working method：Under this working method, the drying operating temperature range of a high temperature is first preset, is passed through
Change air quantity, water flow or the compressor operating amount of calorie adjusting device so that calorie adjusting device is small to external heat dissipation capacity
In the amount of work of compressor, the gas flow temperature of hothouse is promoted to rise in the values of high temperature, in drying process, passed through
Temperature sensor monitors dry indoor temperature in real time, when the temperature of hothouse is higher than the temperature range upper limit value (such as 60 set
DEG C) when, increase calorie adjusting device to external heat dissipation capacity so that calorie adjusting device is more than compressor to external heat dissipation capacity
Amount of work, drying temperature is gradually decrease to values, when temperature is less than the temperature range lower limiting value (such as 55 DEG C) of setting
When, reduce calorie adjusting device to external heat dissipation capacity so that calorie adjusting device is less than compressor to external heat dissipation capacity
Amount of work, drying temperature are gradually increased to values, in this way, by persistently detecting and controlling, drying temperature control is existed
Work in scheduled high temperature range is done when humidity sensor detects that the humidity in air-flow is less than the humidity requirement of setting
Dry device is stopped.
Similar air drying working method：Under this working method, the drying operating temperature of a similar room temperature is first preset
Range, pass through change calorie adjusting device (1-3) air quantity, water flow or compressor operating amount so that calorie adjusting device to
External heat dissipation capacity is suitable with the amount of work of compressor, promotes the airflow temperature-control in hothouse in the range of similar room temperature
It is interior, in drying process, dry indoor temperature is monitored in real time by temperature sensor, when the temperature of hothouse is higher than the temperature set
When spending range higher limit (such as 35 DEG C), increase calorie adjusting device to external heat dissipation capacity so that calorie adjusting device is to outside
Heat dissipation capacity be more than the amount of work of compressor, drying temperature is gradually decrease to values, when temperature is less than the temperature of setting
When lower range limit (such as 30 DEG C), reduce calorie adjusting device to external heat dissipation capacity so that calorie adjusting device is to external
Heat dissipation capacity is less than the amount of work of compressor, and drying temperature is gradually increased to values, in this way, passing through lasting detection and control
System promotes the temperature in hothouse to work in the range of similar room temperature, until the humidity sensor of hothouse detects air-flow
In humidity be less than setting humidity require when, drying device is stopped.
Low temperature drying working method：The drying operating temperature range for first presetting a low temperature, by changing heat regulation dress
Air quantity, water flow or the compressor operating amount set so that calorie adjusting device is more than the acting of compressor to external heat dissipation capacity
Amount, promotes the gas flow temperature in hothouse to be reduced to the predetermined range of low temperature drying；In drying process, pass through temperature sensor
The dry indoor temperature of monitoring in real time increases heat regulation when drying temperature upper limit value (such as 15 DEG C) of the temperature higher than setting
Heat dissipation capacity of the device to outside so that adjust the amount of work that calorie adjusting device is more than compressor to external heat dissipation capacity, temperature
It is gradually lowered in values, when temperature is less than drying temperature lower limiting value (such as 10 DEG C) of setting, reduces heat regulation
Heat dissipation capacity of the device to outside so that adjust the amount of work that calorie adjusting device is less than compressor to external heat dissipation capacity, temperature
It is gradually increased in values, in the process, if detecting that evaporator surface has an apparent frosting, compressor break-off,
It is defrosted by continuing to run with for drying air fan, restarts compressor after completion defrosting and enter low temperature drying work, in this way, logical
Persistently Detection ＆ Controling are crossed, dry air temperature control is worked in scheduled low temperature range, until humidity sensor detects
When being less than the humidity requirement of setting to the humidity in air-flow, drying device is stopped.
Multi-temperature dries working method stage by stage, will be in high temperature dry processes, air drying method, low temperature drying method
Two or two or more working methods are combined according to the needs of drying property or drying efficiency, in the drying process
It is worked stage by stage using different drying means, presets the drying operating temperature range in each stage, in different various working methods
In, the difference between outside heat dissipation capacity and compressor work amount by changing calorie adjusting device so that drying cycles subsystem
Range of the temperature of air-flow in the road of system up to high temperature, similar room temperature or low temperature predetermined value；And it is supervised in real time by temperature sensor
Survey dry indoor temperature, when drying temperature upper limit value of the temperature higher than corresponding method setting, increase calorie adjusting device to
Outer heat dissipation capacity so that the outside heat dissipation capacity of calorie adjusting device is more than the amount of work of compressor, and temperature is gradually lowered to preset value
In range, when temperature is less than the drying temperature lower limiting value of corresponding method setting, reduces the outside heat dissipation capacity of calorie adjusting device, make
The heat dissipation capacity that calorie adjusting device must be adjusted is less than the amount of work of compressor, and temperature is gradually increased in values, in this way,
By lasting Detection ＆ Controling, dry air temperature control by stages is worked within the scope of predetermined temperature, until working as humidity
When sensor detects that the humidity in air-flow is less than the humidity requirement of setting, drying device is stopped.
The embodiment of the utility model is without being limited thereto, according to the above of the utility model, utilizes the general of this field
Logical technological know-how and customary means, under the premise of not departing from the utility model above-mentioned basic fundamental thought, the utility model may be used also
To make the modification, replacement or change of other diversified forms, all fall within the utility model rights protection scope.
Claims (10)
1. a kind of heat pump drying device, which includes heat pump cycle subsystem and drying cycles subsystem；Heat pump
Cycle subsystem includes compressor, calorie adjusting device, condenser, throttling element, evaporator, precool heat exchanger device and associated pipe
Part；Drying cycles subsystem includes hothouse, air duct, drying air fan；It is characterized in that：By pipeline fitting by compressor, heat
Regulating device, condenser, throttling element, evaporator, precool heat exchanger device inlet and outlet be sequentially connected, precool heat exchanger device outlet and compression
Machine air entry connects, and forms heat pump cycle subsystem refrigerant circulation loop；The air inlet and air outlet of hothouse respectively with it is right
The air duct connection answered, drying air fan is installed in air duct or the inlet and outlet of drying air fan is connect with front and back air duct respectively, is formed
Drying cycles subsystem air circulation loop；Precool heat exchanger device, evaporator, condenser are also installed in air duct or respective disengaging
Air port is connect with front and back air duct respectively；Temperature sensor is installed in the hothouse or air duct adjacent thereto and humidity passes
Sensor.
2. heat pump drying device according to claim 1, it is characterised in that：The calorie adjusting device be include air
Adjust the air-cooled type calorie adjusting device of heat exchanger and adjusting wind turbine or including water cooling type heat exchanger, water pump and pipe fitting
And the Water cooling type calorie adjusting device in external water route, or including transpiration-cooled heat exchanger, liquid distributor, filler, adjusting wind turbine,
The transpiration-cooled calorie adjusting device of water-accepting basin, water pump, pipe fitting and water pipe.
3. heat pump drying device according to claim 1, it is characterised in that：The calorie adjusting device is using single
Air-cooled type heat exchanger is as air conditioning heat exchanger or air conditioning heat exchanger and the condenser in heat pump cycle subsystem
Share the same air-cooled type heat exchanger；It, will by partition board when using the same air-cooled type heat exchanger scheme is shared
The air side of common air cooled heat exchanger is separated into two parts, and a portion is as in the heat pump cycle subsystem
Condenser uses, and is set in the air duct, and another part is as the air in the air-cooled type calorie adjusting device
It adjusts heat exchanger to use, and is set to outside the air duct；Refrigerant inlet is located at the side for being used as air conditioning heat exchanger, and
It is connected with the exhaust outlet of compressor by pipeline, refrigerant outlet is located at the side as condenser, and passes through pipeline and institute
Throttling element is stated to be connected.
4. heat pump drying device according to claim 1, it is characterised in that：Further include water receiving disc apparatus and dust removal and filtration dress
It sets, water receiving disc apparatus is arranged in the lower section of evaporator and precool heat exchanger device；Dedusting filter be installed on hothouse outlet with it is pre-
In air duct between cold heat exchanger.
5. heat pump drying device according to claim 1, it is characterised in that：The precool heat exchanger device, evaporator, condensation
Device to be individually separated, both parallel combinations or three's parallel combinations, and on dry gas stream direction, precool heat exchanger device is located at upper
Trip, evaporator are sequentially arranged between precool heat exchanger device and condenser.
6. heat pump drying device according to claim 1, it is characterised in that：The structure type of the heat pump drying device is
Split type or monoblock type；The humidity sensor is water capacity sensor or relative humidity sensor；The hothouse is
Fixed, vibrating type, roller or rotational structure.
7. heat pump drying device according to claim 1, it is characterised in that：The throttling element is heating power expansion valve, electronics
Expansion valve, capillary, throttle valve or restricting orifice.
8. heat pump drying device according to claim 2, it is characterised in that：The condenser, evaporator, precool heat exchanger
Device, air-cooled type heat exchanger are set as fin-tube type, light pipe type, coiled, coil pipe type, board-like or parallel flow heat exchanger.
9. heat pump drying device according to claim 2, it is characterised in that：The water cooling type heat exchanger is shell-tube type, set
Tubular type, board-like, pot type or parallel flow heat exchanger.
10. heat pump drying device according to claim 2, it is characterised in that：The drying air fan adjusts wind turbine setting
For constant speed wind turbine, multi gear wind turbine or speed-changing draught fan, collectively constituted by mode in parallel or series by single wind turbine or multiple wind turbines.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720681908 | 2017-06-13 | ||
| CN2017206819082 | 2017-06-13 |
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| CN207635813U true CN207635813U (en) | 2018-07-20 |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107966011A (en) * | 2017-06-13 | 2018-04-27 | 陈胜君 | A kind of heat pump drying device and its application method |
| CN109186247A (en) * | 2018-09-11 | 2019-01-11 | 广东申菱环境系统股份有限公司 | A kind of water source energy-saving heat pump drying system |
| CN109813095A (en) * | 2019-03-18 | 2019-05-28 | 青岛大学 | Segmented near-closed heat pump drying system |
| CN112113401A (en) * | 2020-09-23 | 2020-12-22 | 烟台睿加节能科技有限公司 | Closed circulation drying system |
| CN115247944A (en) * | 2020-11-07 | 2022-10-28 | 云南师范大学 | A new type of semi-embedded box heat pump regenerative drying system |
-
2017
- 2017-12-13 CN CN201721733922.9U patent/CN207635813U/en active Active
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107966011A (en) * | 2017-06-13 | 2018-04-27 | 陈胜君 | A kind of heat pump drying device and its application method |
| CN107966011B (en) * | 2017-06-13 | 2023-08-18 | 陈胜君 | Heat pump drying device and use method thereof |
| CN109186247A (en) * | 2018-09-11 | 2019-01-11 | 广东申菱环境系统股份有限公司 | A kind of water source energy-saving heat pump drying system |
| CN109813095A (en) * | 2019-03-18 | 2019-05-28 | 青岛大学 | Segmented near-closed heat pump drying system |
| CN112113401A (en) * | 2020-09-23 | 2020-12-22 | 烟台睿加节能科技有限公司 | Closed circulation drying system |
| CN112113401B (en) * | 2020-09-23 | 2022-06-24 | 烟台睿加节能科技有限公司 | Closed circulation drying system |
| CN115247944A (en) * | 2020-11-07 | 2022-10-28 | 云南师范大学 | A new type of semi-embedded box heat pump regenerative drying system |
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