CN208475837U - Air source heat pump drying system - Google Patents
Air source heat pump drying system Download PDFInfo
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- CN208475837U CN208475837U CN201820992093.4U CN201820992093U CN208475837U CN 208475837 U CN208475837 U CN 208475837U CN 201820992093 U CN201820992093 U CN 201820992093U CN 208475837 U CN208475837 U CN 208475837U
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Abstract
The utility model relates to a kind of air source heat pump drying systems, including compressor, first condenser, liquid storage device, drying room, air duct, air return heating device for hot, throttle valve, evaporator, heat exchanger, first fan, compressor, first condenser, liquid storage device, throttle valve, evaporator is in turn connected to form refrigerant major loop by respective line, air duct includes the first air duct, second air duct two parts, air return heating device for hot is arranged in the first air duct, the intersection in the second air duct, the drying room is connected on the first air duct, first condenser is located in the first air duct, heat exchanger, evaporator is located in the second air duct, first fan is located at the position of the outside in the second air duct and corresponding heat exchanger.The drying system can use the heat in surrounding air, reduces heat pump energy consumption, improves efficiency.
Description
Technical field
The utility model relates to drying device fields, and in particular to a kind of air source heat pump drying system.
Background technique
With the development of science and technology drying mode increasingly diversification, as electrothermal drying, steam drying, vacuum freeze drying,
Heat pump drying etc..Heat pump drying does not expend the disposable energy, increasingly attracts much attention since it is more energy saving.Using
Widest heat pump drying is that air source heat pump is dry, deposits the low problem of drying efficiency under certain environmental conditions, especially exist
Under winter environment, air themperature is lower, and heat can not be efficiently absorbed from air.
A kind of heat pump disclosed in such as Publication No. CN101216245A, the patent of invention that publication date is on July 9th, 2018 is dry
Dry device, using CO2For cycle fluid.The drier includes compressor, cooler, inner heat exchanger, evaporator, external heat friendship
Parallel operation etc..
Utility model content
The purpose of the utility model is to provide a kind of air source heat pump drying systems, to improve the efficiency of drying cycles.
To achieve the above object, the utility model air source heat pump drying system adopts the following technical scheme that air-source heat
Pump drying system, including compressor, the first condenser, liquid storage device, drying room, air duct, air return heating device for hot, throttle valve, evaporator,
Heat exchanger, the first fan, compressor, the first condenser, liquid storage device, throttle valve, evaporator are sequentially connected shape by respective line
At refrigerant major loop, air duct includes the first air duct, second air duct two parts, and air return heating device for hot is arranged in the first air duct, second
The intersection in air duct, the drying room are connected on the first air duct, and the first condenser is located in the first air duct, heat exchanger, evaporation
Device is located in the second air duct, and the first fan is located at the position of the outside in the second air duct and corresponding heat exchanger, and air return heating device for hot has
First import, first outlet, the second import, second outlet, the first import, first outlet are oppositely arranged, and the second import, second go out
It mouthful is oppositely arranged, first outlet is towards the position of the first condenser, and the first import is towards heat exchanger；When interior circulation, air is by
The first import in two air ducts successively flows to first outlet, the first condenser, drying room, the second import, second outlet, evaporation
Device, heat exchanger；When only recycling inside, the natural environment temperature locating for the air source heat pump drying system is greater than from evaporator
In come out air themperature when, the first fan open so that refrigerant exchanges heat with outside air in evaporator.
Further, first condenser side is additionally provided with the second condenser, and the air come out from first outlet first flows
Through the second condenser, liquid storage device, the second condenser, throttle valve are sequentially connected, and form refrigerant branch；Liquid portion in liquid storage device
Point, gas part pass through refrigerant major loop, refrigerant branch respectively, converge at throttle valve.
Further, the air return heating device for hot is equipped with the first drain port, and evaporator is equipped with the second drain port.
Further, first condenser, the position among the second condenser are equipped with the second fan.
Further, second air duct is equipped with door one, door two, door three, Men Si, and Men Yi, door two are located at heat exchanger
Two sides, Men Yi, door two, door three all have open position, close stance, and door is fourth is that have the first close stance, the second close stance；Inside
When circulation, Men Yi, door two, door three, four position of door to be closed inside air duct；In outer circulation, Men Yi, door two, door three
In open position, door four be in the second close stance, the air flowed out from second outlet pass through door three from flow to external environment, with
Air after evaporator heat exchange arranges outwardly environment by door two.Drying system can carry out interior circulation, outer circulation, interior circulation,
It can be switched between outer circulation, to be suitable for the drying of different material.
Further, third fan is equipped in the side of evaporator in second air duct.
The utility model has the beneficial effects that the natural environment temperature locating for the drying system is greater than from evaporation in circulation
When the temperature of the cold dry air come out in device, the first fan is opened, and makes the air heat-exchange in the air and air duct in natural environment,
Promote air themperature in air duct.Using the heat in surrounding air, heat pump energy consumption is reduced, is improved efficiency.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model air source heat pump drying system；
Schematic diagram when Fig. 2 is the interior circulation of the utility model air source heat pump drying system；
Schematic diagram when Fig. 3 is the outer circulation of the utility model air source heat pump drying system.
Corresponding title: 1, compressor, the 2, second condenser, the 3, first condenser, 4, electric heating, 5, baking are respectively marked in figure
Dry chamber, 6, air return heating device for hot, the 7, first drain port, 8, refrigerant regenerator, 9, evaporator, the 10, second drain port, 11, heat exchange
Device, 12, Men Yi, 13, Men Si, 14, door three, 15, door two, 16, throttle valve, the 17, second fan, the 18, first fan, 19, third
Fan, 20, liquid storage device, the 61, first import, 62, first outlet, the 63, second import, 64, second outlet.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art's every other embodiment obtained, all belongs to
In the range of the utility model protection.
The embodiment of the utility model air source heat pump drying system: as shown in Figure 1-Figure 3, the dry system of air source heat pump
System, including compressor 1, the first condenser 3, liquid storage device 20, drying room 5, air duct, air return heating device for hot 6, throttle valve 16, evaporator
9, heat exchanger 11, the first fan 18, refrigerant regenerator 8.Compressor 1, liquid storage device 20, throttle valve 16, steams first condenser 3
It sends out device 9 and refrigerant major loop is in turn connected to form by respective line.First condenser, 3 side is additionally provided with the second condenser 2, the
Position among one condenser 3, the second condenser 2 is equipped with the second fan 17.The air come out from first outlet 62 first flows through the
Two condensers 2, liquid storage device 20, the second condenser 2, throttle valve 16 are sequentially connected, and form refrigerant branch.Liquid in liquid storage device 20
Body portion, gas part pass through refrigerant major loop, refrigerant branch respectively, converge at throttle valve 16.Air return heating device for hot 6 is set
There is the first drain port 7, evaporator 9 is equipped with the second drain port 10.
Air duct includes the first air duct A, second air duct B two parts, and air return heating device for hot 6 is arranged in the first air duct, the second air duct
Intersection, drying room 5 is connected on the first air duct, and the first condenser 3 is located in the first air duct, heat exchanger 11, evaporator 9
In in the second air duct, the first fan 18 is located at the position of the outside in the second air duct and corresponding heat exchanger 11.Second air duct is equipped with door
One 12, door 2 15, door 3 14, door 4 13, door 1, door 2 15 are located at the two sides of heat exchanger 11, door 1, door 2 15,
Door 3 14 all has open position, close stance, and door 4 13 is that have the first close stance, the second close stance.
Air return heating device for hot 6 has the first import 61, first outlet 62, the second import 63, second outlet 64, the first import
61, first outlet 62 is oppositely arranged, and the second import 63, second outlet 64 are oppositely arranged, and first outlet 62 is towards the first condenser 3
Position, the first import 61 is towards heat exchanger 11.
Above-mentioned is the description to the composition of drying system, is described below below for its working principle:
Refrigerant flow circuit: the high-temperature high-pressure refrigerant (gaseous state) being discharged by compressor 1 first passes through the first condenser 3, with wind
Air in road exchanges heat, and is cooled；At this point, refriger-ant section has been changed to liquid, liquid storage device 20 is flowed into, in liquid storage device 20
Liquid portion by bottom be directly entered capillary be first depressured flow to again throttle valve 16 carry out reducing pressure by regulating flow cooling, prevent from entering
Two-way refrigerant pressure before throttle valve 16 is uneven.Gas part is entered in the second condenser 2 by 20 top of liquid storage device, with
Wind in air duct further exchanges heat cooling, heat exchanger heat exchange area can be made to be fully utilized in this way, prevent liquefied system
Cryogen is influenced the heat exchange of uncooled refrigerant by being re-introduced into the second condenser 2.The two-way of major loop and branch refrigeration
Agent converges in 16 entrance of throttle valve, and cools down by 16 reducing pressure by regulating flow of throttle valve, becomes gas-liquid two-phase state refrigerant, gas-liquid two
Phase refrigerant enters in evaporator 9 and after the air heat-exchange in evaporator 9, enters the gas returning port of compressor 1, completes entire
Refrigerant circulation.Wherein, winter defrost uses electronic throttle defrost, can also use four-way reversing valve defrost, this part skill
Art belongs to the prior art, is no longer described in detail.
When interior circulation:
As shown in Fig. 2, door 1, door 2 15, door 3 14 are in close stance, door 4 13 is in the first close stance, Men Yi
12, door 2 15, door 3 14,4 13 position of door to be closed space inside air duct.The air of low temperature and low humidity is from air backheating
First import 61 of device 6 enters, and flows out from first outlet 62, and the air heat-exchange with 6 second import 63 of air return heating device for hot makes to enter
Air themperature to the second condenser 2 increases, and slightly the air after heating, which flows through the second condenser 2, can be heated again liter
Temperature will continue to heat up when flowing through the first condenser 3 by the pressurized air of the second fan 17, the air stream between two condensers
Logical distance will make air sufficiently exchange heat with the refrigerant in condenser pipe more greatly, and air continues flow through electric heating 4, but works as
When heat pump ability can satisfy the drying capacity of certain air mass flow, electric heating 4 will not be opened.The air in air duct has been at this time
Become heated dry air, flow through hothouse, material is dried；The air humidity come out from hothouse is very big, at dry initial stage
Temperature is also not very high, which continues flow through the second import 63 of air return heating device for hot 6, and the air entered with the first import 61 changes
It is flowed out after heat from second outlet 64, the air of high humility will appear a small amount of condensed water after heat exchange, and condensed water is from the first drain port 7
Middle outflow.The air tentatively to dry continues flow through evaporator 9, since the temperature of evaporator 9 is lower, removes in evaporator 9 big
Partial moisture, cold dry air enter in high-performance heat exchanger 11 after flowing through third fan 19, and third fan 19 is set to the one of evaporator 9
Side.When the natural environment temperature locating for the drying system is greater than the temperature of the cold dry air come out from evaporator 9, the first fan
18 open, and make the air heat-exchange in the air and air duct in natural environment, promote air themperature in air duct, reduce heat pump energy consumption.
The air come out from heat exchanger 11 flows into the first import 61 of air return heating device for hot 6, completes circulation.It has inside recycled high in environment
The heat of warm air improves the efficiency of entire drying system, environment friendly and pollution-free.
When outer circulation:
As shown in figure 3, door 1, door 2 15, door 3 14 are in open position, door 4 13 is in the second close stance.It is natural
Air in environment enters from the first import 61 of air return heating device for hot 6, and air-flow direction and interior circulation are consistent.In air duct
After air flows out second outlet 64, is flowed in external environment from door 3 14, humid air is outwardly discharged.Sky in natural environment
Gas flows through evaporator 9 under the action of third fan 19, carries out heat exchange with the low-temperature refrigerant in evaporator 9, namely from outer
The heat absorption of boundary's environment, the air after then cooling down are flowed out from door 2 15, and into natural environment, the first fan 18 is not turned on.Outer circulation
When, heat is absorbed from surrounding air, and be transferred into the material being oven-dried, improve efficiency relative to interior circulation.
The air source heat pump drying system of the utility model, may be implemented the switching of inside and outside circulation, to be suitable for inhomogeneity
The material of type.But if material has peculiar smell, there are some murder by poisoning objects etc., drying process will lead to environmental pollution, be not suitable for using
Outer circulation.
Claims (6)
1. air source heat pump drying system, it is characterised in that: including compressor, the first condenser, liquid storage device, drying room, air duct,
Air return heating device for hot, throttle valve, evaporator, heat exchanger, the first fan, compressor, the first condenser, liquid storage device, throttle valve, evaporation
Device is in turn connected to form refrigerant major loop by respective line, and air duct includes the first air duct, second air duct two parts, and air returns
The intersection in the first air duct, the second air duct is arranged in hot device, and the drying room is connected on the first air duct, and the first condenser is located at
In first air duct, heat exchanger, evaporator are located in the second air duct, and the first fan is located at the outside in the second air duct and corresponding heat exchanger
Position, air return heating device for hot have the first import, first outlet, the second import, second outlet, the first import, first outlet phase
To setting, the second import, second outlet are oppositely arranged, and first outlet is changed towards the position of the first condenser, the first import direction
Hot device；When interior circulation, air successively flows to first outlet, the first condenser, drying room, by the first import in the second air duct
Two imports, second outlet, evaporator, heat exchanger；When only recycling inside, the nature locating for the air source heat pump drying system
When environment temperature is greater than the air themperature come out from evaporator, the first fan is opened so that refrigerant and the external world are empty in evaporator
Gas exchanges heat.
2. air source heat pump drying system according to claim 1, it is characterised in that: first condenser side is also set
Have the second condenser, the air come out from first outlet first flows through the second condenser, liquid storage device, the second condenser, throttle valve according to
It is secondary to be connected, form refrigerant branch；Liquid portion, gas part in liquid storage device pass through refrigerant major loop, refrigerant respectively
Branch converges at throttle valve.
3. air source heat pump drying system according to claim 1, it is characterised in that: the air return heating device for hot is equipped with first
Drain port, evaporator are equipped with the second drain port.
4. air source heat pump drying system according to claim 1, it is characterised in that: first condenser, second cold
Position among condenser is equipped with the second fan.
5. air source heat pump drying system according to any one of claims 1 to 4, it is characterised in that: second air duct
Equipped with door one, door two, door three, Men Si, Men Yi, door two are located at the two sides of heat exchanger, and Men Yi, door two, door three, which all have, to be beaten
Open position, close stance, door is fourth is that have the first close stance, the second close stance；When recycling inside, Men Yi, door two, door three, Men Siwei
It sets so that being closed inside air duct；In outer circulation, third is that being in open position, door four is in second and closes for Men Yi, door two, door
Position, the air flowed out from second outlet is by flowing to external environment from door three, with the air after evaporator heat exchange by door two
Arrange outwardly environment.
6. air source heat pump drying system according to claim 5, it is characterised in that: in evaporator in second air duct
Side be equipped with third fan.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820992093.4U CN208475837U (en) | 2018-06-26 | 2018-06-26 | Air source heat pump drying system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820992093.4U CN208475837U (en) | 2018-06-26 | 2018-06-26 | Air source heat pump drying system |
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| Publication Number | Publication Date |
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| CN208475837U true CN208475837U (en) | 2019-02-05 |
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ID=65215226
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820992093.4U Active CN208475837U (en) | 2018-06-26 | 2018-06-26 | Air source heat pump drying system |
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| CN (1) | CN208475837U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110057169A (en) * | 2019-03-12 | 2019-07-26 | 浙江海洋大学 | A kind of aquatic products heat pump type drying apparatus |
-
2018
- 2018-06-26 CN CN201820992093.4U patent/CN208475837U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110057169A (en) * | 2019-03-12 | 2019-07-26 | 浙江海洋大学 | A kind of aquatic products heat pump type drying apparatus |
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