CN108955224A - A kind of enclosed earth source heat pump drying system - Google Patents
A kind of enclosed earth source heat pump drying system Download PDFInfo
- Publication number
- CN108955224A CN108955224A CN201810945280.1A CN201810945280A CN108955224A CN 108955224 A CN108955224 A CN 108955224A CN 201810945280 A CN201810945280 A CN 201810945280A CN 108955224 A CN108955224 A CN 108955224A
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- China
- Prior art keywords
- refrigerant
- hothouse
- underground pipe
- air
- compressor
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B21/00—Arrangements or duct systems, e.g. in combination with pallet boxes, for supplying and controlling air or gases for drying solid materials or objects
- F26B21/001—Drying-air generating units, e.g. movable, independent of drying enclosure
- F26B21/002—Drying-air generating units, e.g. movable, independent of drying enclosure heating the drying air indirectly, i.e. using a heat exchanger
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B21/00—Arrangements or duct systems, e.g. in combination with pallet boxes, for supplying and controlling air or gases for drying solid materials or objects
- F26B21/004—Nozzle assemblies; Air knives; Air distributors; Blow boxes
Abstract
The invention discloses a kind of enclosed earth source heat pump drying system, including compressor, the outlet of the compressor is connected with air-cooled condenser and underground pipe one end respectively, and the entrance of compressor is connected with underground pipe the same end and wind-cooled evaporator respectively；Air-cooled condenser is connected with liquid storage device；The other end of underground pipe is connected with liquid storage device and expansion valve respectively；Liquid storage device is connected with expansion valve, and expansion valve is connected with wind-cooled evaporator；Air-cooled condenser, for the dry air to hothouse conveying high temperature；Wind-cooled evaporator for the waste-gas heat of absorption dehydration room discharge, and carries out dehumidification treatments；Underground pipe is used for according to dry operating condition regulating system operational mode.Enclosed earth source heat pump drying system disclosed by the invention, it can effectively be lifted at the dry indoor temperature increase rate of dry initial stage, and the heat of hothouse input can be adjusted in real time, so that operating condition of the optimizing drying system in the heat extraction stage, improves the whole efficiency of energy utilization of drying system.
Description
Technical field
The present invention relates to heat pump drying technology fields, more particularly to a kind of enclosed earth source heat pump drying system.
Background technique
Currently, Analysis of Heat Pump Drying System can be divided into closed system, semi-open type system, open system by structure, wherein closed type hot
Pump drying system can effectively recycle the condensation heat in dry waste gas because of it, and energy utilization efficiency with higher.
But for enclosed Analysis of Heat Pump Drying System, the air circulation process carried out, what is taken is successively by evaporator
With the structure type of condenser, the degree of regulation of initial stage heating rate and latter temperature is limited.The temperature of hothouse therein
It is easy to rise, so that enclosed Analysis of Heat Pump Drying System needs intermittent heat extraction, and in summer, outdoor high temperature, so that closing
The condensing condition of formula Analysis of Heat Pump Drying System is deteriorated, and the efficiency of system reduces.It can be seen that traditional enclosed Analysis of Heat Pump Drying System is deposited
In certain limitation, the raising of the control precision and system effectiveness to temperature is limited, enclosed Analysis of Heat Pump Drying System is caused
Drying quality reduces and the increase of energy consumption.
Therefore, dry initial stage can be effectively lifted at there is an urgent need to develop a kind of enclosed Analysis of Heat Pump Drying System out at present
Stage dry indoor temperature increase rate, and the heat of hothouse input can be adjusted in real time, so that optimizing drying system exists
The operating condition in heat extraction stage improves the whole efficiency of energy utilization of drying system.
Summary of the invention
In view of this, can be effectively lifted at the object of the present invention is to provide a kind of enclosed earth source heat pump drying system
The dry dry indoor temperature increase rate of initial stage, and the heat of hothouse input can be adjusted in real time, so that optimization is dry
Drying system improves the whole efficiency of energy utilization of drying system, is of great practical significance in the operating condition in heat extraction stage.
For this purpose, the present invention provides a kind of enclosed earth source heat pump drying system, including it is compressor, air-cooled condenser, buried
Pipe, liquid storage device, expansion valve, wind-cooled evaporator and hothouse, in which:
The refrigerant outlet of the compressor first interface with the refrigerant inlet of air-cooled condenser and underground pipe respectively
It is connected；
The refrigerant outlet of the air-cooled condenser is connected with the refrigerant inlet of liquid storage device；
The first interface of the underground pipe is also connected with the refrigerant inlet of compressor and refrigerant outlet respectively；
The second interface of the underground pipe is connected with the refrigerant outlet of the refrigerant inlet of liquid storage device and expansion valve respectively
It is logical；
The refrigerant outlet of liquid storage device is connected with the refrigerant inlet of expansion valve, the refrigerant outlet point of the expansion valve
It is not connected with the refrigerant inlet of the second interface of underground pipe and wind-cooled evaporator；
The refrigerant outlet of the wind-cooled evaporator is connected with the refrigerant inlet of compressor；
The air-cooled condenser, for the dry air to the drying chamber inlet of hothouse conveying high temperature；
The wind-cooled evaporator is gone forward side by side for the waste-gas heat after the drying of the hothouse outlet discharge of absorption dehydration room
Row dehumidification treatments.
Wherein, flow control valve is provided between the refrigerant outlet of the compressor and the first interface of underground pipe.
Wherein, it is set on the connecting line between the refrigerant outlet of the compressor and the refrigerant inlet of air-cooled condenser
It is equipped with the first solenoid valve；
The second electricity is provided on connecting line between the second interface of the underground pipe and the refrigerant inlet of liquid storage device
Magnet valve；
Third electricity is provided on connecting line between the refrigerant outlet of the expansion valve and the second interface of underground pipe
Magnet valve, and second solenoid valve and third solenoid valve converge and are connected afterwards with the second interface of underground pipe；
It is provided on connecting line between the refrigerant outlet of the expansion valve and the refrigerant inlet of wind-cooled evaporator
4th solenoid valve；
It is provided on connecting line between the refrigerant outlet of the wind-cooled evaporator and the refrigerant inlet of compressor
5th solenoid valve；
The 6th electricity is provided on connecting line between the first interface of the underground pipe and the refrigerant inlet of compressor
Magnet valve, and the 6th solenoid valve converges with the 5th solenoid valve and is connected afterwards with the refrigerant inlet of compressor.
Wherein, the hothouse includes hollow hothouse main body, the same side upper and lower ends point of the hothouse main body
It is not provided with dry chamber inlet and hothouse outlet, there are multiple dry air ducts between the dry chamber inlet and hothouse outlet,
For placing cargo to be dried in the dry air duct.
Wherein, there are multiple baffles, the multiple baffle is set at vertical direction interval and in parallel in the hothouse main body
It sets；
The hothouse main body is divided into multiple interconnected drying air ducts by the multiple baffle.
Wherein, first circulation blower is installed inside the dry chamber inlet, second circulation is installed inside the bend
Blower, for guaranteeing dry air flow rates and flow direction.
Wherein, the air-cooled condenser is installed, hothouse outlet the inside is equipped with inside the dry chamber inlet
Wind-cooled evaporator.
Wherein, the air-cooled condenser is located in the first hollow ventilation shaft, first ventilation shaft and hothouse
Entrance is connected；
The wind-cooled evaporator is located in the second hollow ventilation shaft, and second ventilation shaft exports phase with hothouse
Connection.
By the above technical solution provided by the invention as it can be seen that compared with prior art, the present invention provides a kind of encloseds
Earth source heat pump drying system can effectively be lifted at the dry indoor temperature increase rate of dry initial stage, and can be real
When adjust hothouse input heat, so that operating condition of the optimizing drying system in the heat extraction stage, improves the whole energy of drying system
Source utilization efficiency, is of great practical significance.
Detailed description of the invention
Fig. 1 is a kind of structural schematic diagram of enclosed earth source heat pump drying system provided by the invention；
Fig. 2 is the structural schematic diagram of hothouse in a kind of enclosed earth source heat pump drying system provided by the invention；
In figure, 1 is compressor, and 2 be air-cooled condenser, and 3 be underground pipe, and 4 be liquid storage device, and 5 be expansion valve, and 6 be air-cooled steaming
Device is sent out, 7 be hothouse, and 10 be flow control valve；
801 be first circulation blower, and 802 be second circulation blower；
9 be the first solenoid valve, and 11 be second solenoid valve, and 12 be third solenoid valve, and 13 be the 4th solenoid valve, and 14 be the 5th electricity
Magnet valve, 15 be the 6th solenoid valve；
70 be hothouse main body, and 701 be dry chamber inlet, and 702 be dry air duct, and 703 be bend, and 704 go out for hothouse
Mouthful, 705 be baffle, and 706 be library door.
Specific embodiment
In order to enable those skilled in the art to better understand the solution of the present invention, with reference to the accompanying drawing with embodiment to this
Invention is described in further detail.
Referring to Fig. 1, Fig. 2, the present invention provides a kind of enclosed earth source heat pump drying systems, including compressor 1, air-cooled condensation
Device 2, underground pipe 3, liquid storage device 4, expansion valve 5, wind-cooled evaporator 6 and hothouse 7, in which:
The refrigerant outlet of the compressor 1 connects with the first of the refrigerant inlet of air-cooled condenser 2 and underground pipe 3 respectively
Mouthful the bottom left position of underground pipe 3 (can as shown in Figure 1) be connected；
The refrigerant outlet of the air-cooled condenser 2 is connected with the refrigerant inlet of liquid storage device 4；
The first interface of the underground pipe 3 also refrigerant with the refrigerant inlet of compressor 1 and wind-cooled evaporator 6 respectively
Outlet is connected；
The second interface top right end position of underground pipe 3 (can as shown in Figure 1) of the underground pipe 3 respectively with liquid storage device
4 refrigerant inlet is connected with the refrigerant inlet of wind-cooled evaporator 6；
The refrigerant outlet of liquid storage device 4 is connected with the refrigerant inlet of expansion valve 5, and the refrigerant of the expansion valve 5 goes out
Mouth is connected with the refrigerant inlet of the second interface of underground pipe 3 and wind-cooled evaporator 6 respectively；
The refrigerant outlet of the wind-cooled evaporator 6 is connected with the refrigerant inlet of compressor 1；
The air-cooled condenser 2, for the dry air to the drying chamber inlet of hothouse 7 conveying high temperature；
The wind-cooled evaporator 6, for the waste-gas heat after the drying of the hothouse outlet discharge of absorption dehydration room 7, and
Carry out dehumidification treatments；
The underground pipe 3, for the different phase according to dry operating condition, to should be used as evaporator or make as condenser
With, specifically: according to the different phase of dry operating condition, mode tuning is dried, in the dry temperature rise period at initial stage, as evaporation
Device is used；In the desiccant dehumidification stage, make condenser use；It, can be with air-cooled condenser 2 together simultaneously as cold in normal operating phase
Condenser uses, and the effect of underground pipe 3 at this time is to adjust the refrigerant flow for entering air-cooled condenser 2.
It should be noted that being by one section of hollow pipe between the interconnected component of any two for the present invention
Road is connected.
In the present invention, it in specific implementation, is set between the refrigerant outlet of the compressor and the first interface of underground pipe 3
It is equipped with flow control valve 10, for adjusting the refrigerant flow for entering underground pipe 3, to preferably adjust the heating of dry air
Temperature.
For the present invention, it should be noted that the underground pipe 3, main function are to realize refrigerant and external ground
The heat exchange of layer soil (i.e. external ground surface soil below) can be used according to the dry stage respectively as condenser
Or evaporator uses.
Wherein, when underground pipe 3 as condenser in use, the first interface of underground pipe 3 enters as the refrigerant of underground pipe 3
Mouthful and the refrigerant outlet of connect compressor 1, second interface as underground pipe 3 refrigerant outlet and connect the system of liquid storage device 4
Cryogen entrance, therefore, underground pipe 3, which can be realized, at this time spills into refrigerant heat external stratum soil, refrigeration after cooling
Agent enters liquid storage device 4；
And work as underground pipe 3 as evaporator in use, refrigerant outlet of the first interface of underground pipe 3 as underground pipe 3
The refrigerant inlet of compressor 1 is connect, at this point, the refrigerant outlet of wind-cooled evaporator 6 is also connected with the refrigerant inlet of compressor 1
Connect, therefore, underground pipe 3 can be realized refrigerant and gasify from external stratum soil absorption heat, the refrigerant after gasification into
Enter the refrigerant inlet of compressor 1, because underground pipe 3 can be intermittent from external stratum soil absorption or release heat, can reduce
Influence to the external stratum soil moisture.
In the present invention, in specific implementation, the refrigerant of the refrigerant outlet and air-cooled condenser 2 of the compressor 1 enters
The first solenoid valve 9 is provided on connecting line between mouthful；
Second is provided on connecting line between the second interface of the underground pipe 3 and the refrigerant inlet of liquid storage device 4
Solenoid valve 11；
Third is provided on connecting line between the refrigerant outlet of the expansion valve 5 and the second interface of underground pipe 3
Solenoid valve 12, and second solenoid valve 11 and third solenoid valve 12 converge and are connected afterwards with the second interface of underground pipe 3；
It is arranged on connecting line between the refrigerant outlet of the expansion valve 5 and the refrigerant inlet of wind-cooled evaporator 6
There is the 4th solenoid valve 13；
It is arranged on connecting line between the refrigerant outlet of the wind-cooled evaporator 6 and the refrigerant inlet of compressor 1
There is the 5th solenoid valve 14；
The 6th is provided on connecting line between the first interface of the underground pipe 3 and the refrigerant inlet of compressor 1
Solenoid valve 15, and the 6th solenoid valve 15 converges with the 5th solenoid valve 14 and is connected afterwards with the refrigerant inlet of compressor 1.
In the present invention, in specific implementation, the hothouse 7 includes hollow hothouse main body 70, the hothouse master
The same side upper and lower ends of body 70 have dry chamber inlet 701 and hothouse outlet 704, dry 701 He of chamber inlet
There are multiple dry air ducts 702 between hothouse outlet 704, be used to place cargo to be dried in the dry air duct 702.
In specific implementation, the dry chamber inlet 701 and hothouse outlet 704 are located at the hothouse main body 70
Left side upper and lower ends.
In specific implementation, there are multiple baffles 705 in the hothouse main body 70, the multiple baffle 705 is in Vertical Square
To being spaced and be arranged in parallel；
The hothouse main body 70 is divided into multiple interconnected drying air ducts 702 by the multiple baffle 705.
It, can according to the needs of users and cargo it should be noted that the quantity and size in the dry air duct 702
Type is adjusted correspondingly.
In specific implementation, the adjacent drying air duct 702 of any two is connected in one end in the same direction by a bend 703
It is logical, by bend 703, the deflecting that air flows in hothouse 7 may be implemented.
In specific implementation, first circulation blower 801,703 the inside of bend are installed inside the dry chamber inlet 701
Second circulation blower 802 is installed, for guaranteeing dry air flow rates and flow direction.
In specific implementation, the outlet of hothouse described in the air-cooled condenser 2 is installed inside the dry chamber inlet 701
704 the insides are equipped with wind-cooled evaporator 6, to convey high temperature dry air to hothouse.
In specific implementation, the air-cooled condenser 2 is located at the left side of first circulation blower 801, so as to follow first
Under the action of ring blower 801, dry air after quickly will heat up is transported in the drying air duct 702 in hothouse 7；
The wind-cooled evaporator 6 is located at the left side of second circulation blower 802, can be in the effect of second circulation blower 802
Under, realize that exhaust gas that dry air duct 702 is discharged, after drying carries out rapid moisture removal processing.
In addition, in specific implementation, the air-cooled condenser 2 can be located at the first hollow ventilation shaft for the present invention
It is interior, and it is not mounted to 701 the inside of hothouse entrance, first ventilation shaft is connected with dry chamber inlet 701；
The wind-cooled evaporator 6 can be located in the second hollow ventilation shaft, and be not mounted in hothouse outlet 704
Face, second ventilation shaft are connected with hothouse outlet 704.
In specific implementation, the right side of the hothouse main body 70 can also hingedly be provided with a library door 706, library door
706 can open, and pass in and out for cargo；
It should be noted that in the present invention, the compressor 1 preferably uses frequency-changeable compressor, and main function is
Compressed action is carried out to refrigerant, the high temperature and pressure overheated gas of discharge can enter air-cooled condenser 2 or underground pipe according to demand
Heat exchange cooling is carried out in 3；
The air-cooled condenser 2, main function are the heat that refrigerant is absorbed using dry air, one side refrigerant
Temperature decline, the temperature of another aspect dry air increases, and then cooling refrigerant enters liquid storage device 4, and it is dry to heat up
Dry air enters hothouse 7；
The liquid storage device 4, main function are storage refrigerant liquids, and guarantee from the outflow of its refrigerant outlet, enter
The refrigerant of expansion valve 5 is liquid, and the refrigerant inlet side having is given a dinner for a visitor from afar one end of cool condenser 3 and underground pipe 3 respectively.
The expansion valve 5, main function are the conversions for realizing highly pressurised liquid to low-temp low-pressure gas-liquid two-phase, are had
Refrigerant outlet connects wind-cooled evaporator 6 and underground pipe 3；
The wind-cooled evaporator 6, phase main function are discharges in the refrigerant and hothouse 7 for realize the low-temp low-pressure in it
Exhaust gas between heat exchange, absorb exhaust gas in heat, while can realize dry air hydrofuge effect, absorb heat after
Refrigerant gas enter the refrigerant inlet (i.e. air entry) of compressor 1.
It should be noted that the underground pipe can be the underground pipe that existing common earth source heat pump field uses.It is external
Stratum soil can be normal outdoor soil, be the soil that earth source heat pump field often utilizes, generally shallow rock soil (as
Soil in 200 meters of table following depth), for external stratum soil, there is the thermal energy higher than surface temperature in winter, thus
Thermal energy therein can be extracted, and there is the thermal energy lower than surface temperature in summer, so as to absorb external heat, is realized
The opposite transfer of heat.
In the present invention, the inside of the hothouse 7, for placing cargo to be dried, main includes dry chamber inlet
701, hothouse outlet 704, baffle 705, dry air duct 702, bend 703, library door 706.Dry chamber inlet 701 connects air-cooled cold
The outlet of condenser 2, hothouse 7 connects wind-cooled evaporator 6, and hothouse 7 is separated into multiple dry air ducts 702, bend by baffle 705
703 turn to for realizing the air before circulating fan, and library door 706 is used for the disengaging of cargo.
It can also include for providing multiple circulated airs of dry air circulation according to structure for the hothouse 7
Machine (including first circulation blower 801 and second circulation blower 802), the circulating fan for realizing dry air recycle stream
Dynamic and deflecting flowing；
In the present invention, the refrigerant of the flow control valve 10 is located at compressor 1 refrigerant outlet and underground pipe 3 enters
Between mouthful, for adjusting the flow for entering the refrigerant of underground pipe, to preferably adjust the heating temperature of dry air.
Technical solution for a better understanding of the present invention, below with regard to enclosed earth source heat pump drying system provided by the invention
Specific work process be illustrated.Its its course of work can be divided into three phases, and each stage is judged according to temperature and humidity,
And it is energized and is adjusted according to each stage:
One, the dry temperature rise period at initial stage.At this point, the temperature of air themperature and cargo to be dried in hothouse 7 is lower, need
It is rapidly heated, opens the first solenoid valve 9, third solenoid valve 12, the 6th solenoid valve 15, close the 11, the 4th electricity of second solenoid valve
Magnet valve 13, the 5th solenoid valve 14 and flow control valve 10, so that the system of the refrigerant outlet connection air-cooled condenser 2 of compressor 1
Cryogen entrance, the refrigerant outlet of air-cooled condenser 2 connect liquid storage device 4, the refrigerant outlet connection expansion valve 5 of liquid storage device 4
Refrigerant inlet, the second interface (being used as refrigerant inlet at this time) of the refrigerant outlet connection underground pipe 3 of expansion valve 5 are buried
The first interface (at this time as refrigerant outlet) of pipe 3 reconnects the refrigerant inlet of compressor 1, realizes the circulation benefit of refrigerant
With.
Wherein, refrigerant is air-cooled by being entered in the form of high temperature and pressure overheated gas after compressor 1 carries out compressed action
In condenser 2, for the dry air in dry kiln 7, so that air is placed in dry kiln 7 after being rapidly heated
Material to be dried, most fast heating rate can be reached.
Two, normal operating phase.At this point, the air themperature in hothouse 7 maintain predetermined temperature nearby and it is wet
Degree maintains preset humidity hereinafter, simultaneously fluctuating within a preset range, to realize the effect to dehumidify in drying, opens
First solenoid valve 9, second solenoid valve 11, the 4th solenoid valve 13, the 5th solenoid valve 14 close third solenoid valve 12 and the 6th electromagnetism
Valve 15, so that first interface (this of the refrigerant inlet of the refrigerant outlet connection air-cooled condenser 2 of compressor 1 and underground pipe 3
Shi Zuowei refrigerant inlet), the refrigerant outlet of air-cooled condenser 2 and the second interface of underground pipe 3 (go out as refrigerant at this time
Mouthful) converge and be connected afterwards with the refrigerant inlet of liquid storage device 4, the refrigerant of the refrigerant outlet and expansion valve 5 of liquid storage device 4 enters
Mouthful, the refrigerant inlet of the refrigerant outlet connection wind-cooled evaporator 6 of expansion valve 5, the refrigerant outlet connection of wind-cooled evaporator 6
The refrigerant inlet of compressor 1 realizes recycling for refrigerant.
Wherein, refrigerant is after compressor 1 carries out compressed action, from compressor 1 in the form of high temperature and pressure overheated gas
Then middle discharge adjusts the refrigerant ratio into air-cooled condenser 2 and underground pipe 3 by flow control valve 10, wherein into
The refrigerant for entering air-cooled condenser 2 will discharge the dry air in heat hothouse 7, and enter the refrigerant of underground pipe 3,
Heat will be released to external stratum soil, subsequent refrigerant enters after condensation in liquid storage device 4, and expanded valve 5 enters wind
In cold evaporator 6, thus the heat of the dry waste gas in absorption dehydration room 7, while the moisture of a part is removed, reach drying and removes
Wet purpose.
Three, it dehumidifies the stage.At this point, with dry progress, the humidity in hothouse 7 in dry air increase significantly more than
Preset humidity, therefore, it is necessary to concentrate operation dehumidification mode, by opening second solenoid valve 11, the 4th solenoid valve 13, the
Five solenoid valves 14 close the first solenoid valve 9, third solenoid valve 12, the 6th solenoid valve 15, so that the refrigerant outlet of compressor 1
The first interface (being used as refrigerant inlet at this time) of underground pipe 3 is connected, the second interface of underground pipe 3 (goes out as refrigerant at this time
Mouthful) connection liquid storage device 4, the refrigerant outlet connection expansion valve 5 of liquid storage device 4, the air-cooled evaporation of refrigerant outlet connection of expansion valve 5
Device 6, the refrigerant inlet of the refrigerant outlet connect compressor 1 of wind-cooled evaporator 6, realizes recycling for refrigerant.
Wherein, refrigerant is buried by being entered in the form of high temperature and pressure overheated gas after compressor 1 carries out compressed action
In pipe 3, so that heat to be spilt into external stratum soil by underground pipe 3, and enter wind-cooled evaporator after the throttling of expanded valve 5
In 6, the heat of dry waste gas in 6 absorption dehydration room 7 of wind-cooled evaporator, while portion of water is removed, achieve the purpose that dehumidifying.
It, can be abundant based on above technical scheme it is found that for enclosed earth source heat pump drying system provided by the invention
Using underground heat, dry indoor temperature and humidity state can be acquired in real time, and drying process is divided into three phases, and pass through system
Pipeline controlled, can be realized dry initial stage be rapidly heated and the real-time adjusting of hothouse input heat, from
And improve the whole efficiency of energy utilization of drying system.
In conclusion compared with prior art, a kind of enclosed earth source heat pump drying system provided by the invention can
It is effectively lifted at the dry indoor temperature increase rate of dry initial stage, and the heat of hothouse input can be adjusted in real time,
To operating condition of the optimizing drying system in the heat extraction stage, the whole efficiency of energy utilization of drying system is improved, there is great life
Produce practice significance.
The above is only a preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art
For member, various improvements and modifications may be made without departing from the principle of the present invention, these improvements and modifications are also answered
It is considered as protection scope of the present invention.
Claims (8)
1. a kind of enclosed earth source heat pump drying system, which is characterized in that including compressor (1), air-cooled condenser (2), underground pipe
(3), liquid storage device (4), expansion valve (5), wind-cooled evaporator (6) and hothouse (7), in which:
The refrigerant outlet of the compressor (1) respectively with the refrigerant inlet of air-cooled condenser (2) and underground pipe (3) first
Interface is connected；
The refrigerant outlet of the air-cooled condenser (2) is connected with the refrigerant inlet of liquid storage device (4)；
The first interface of the underground pipe (3) is also connected with the refrigerant inlet of compressor (1) and refrigerant outlet respectively；
The second interface of the underground pipe (3) refrigerant outlet with the refrigerant inlet of liquid storage device (4) and expansion valve (5) respectively
It is connected；
The refrigerant outlet of liquid storage device (4) is connected with the refrigerant inlet of expansion valve (5), the refrigerant of the expansion valve (5)
Outlet is connected with the refrigerant inlet of the second interface of underground pipe (3) and wind-cooled evaporator (6) respectively；
The refrigerant outlet of the wind-cooled evaporator (6) is connected with the refrigerant inlet of compressor (1)；
The air-cooled condenser (2), for the dry air to the drying chamber inlet of hothouse (7) conveying high temperature；
The wind-cooled evaporator (6), for the waste-gas heat after the drying of the hothouse outlet discharge of absorption dehydration room (7), and
Carry out dehumidification treatments.
The underground pipe (3), for the different phase according to dry operating condition, to should be used as evaporator or make as condenser
With.
2. enclosed earth source heat pump drying system as described in claim 1, which is characterized in that the refrigerant outlet of the compressor
Flow control valve (10) are provided between the first interface of underground pipe (3).
3. enclosed earth source heat pump drying system as described in claim 1, which is characterized in that the refrigerant of the compressor (1)
The first solenoid valve (9) are provided on connecting line between outlet and the refrigerant inlet of air-cooled condenser (2)；
Second is provided on connecting line between the second interface of the underground pipe (3) and the refrigerant inlet of liquid storage device (4)
Solenoid valve (11)；
Third is provided on connecting line between the refrigerant outlet of the expansion valve (5) and the second interface of underground pipe (3)
Solenoid valve (12), and second solenoid valve (11) and third solenoid valve (12) converge after be connected with the second interface of underground pipe (3)
It connects；
It is arranged on connecting line between the refrigerant outlet of the expansion valve (5) and the refrigerant inlet of wind-cooled evaporator (6)
There is the 4th solenoid valve (13)；
It is arranged on connecting line between the refrigerant outlet of the wind-cooled evaporator (6) and the refrigerant inlet of compressor (1)
There is the 5th solenoid valve (14)；
The 6th is provided on connecting line between the first interface of the underground pipe (3) and the refrigerant inlet of compressor (1)
Solenoid valve (15), and the 6th solenoid valve (15) is converged the rear refrigerant with compressor (1) with the 5th solenoid valve (14) and is entered
Mouth is connected.
4. enclosed earth source heat pump drying system as described in claim 1, which is characterized in that the hothouse (7) includes hollow
Hothouse main body (70), the same side upper and lower ends of the hothouse main body (70) have dry chamber inlet (701) and
Hothouse exports (704), has multiple dry air ducts between the dry chamber inlet (701) and hothouse outlet (704)
(702), for placing cargo to be dried in the dry air duct (702).
5. enclosed earth source heat pump drying system as claimed in claim 4, which is characterized in that tool in the hothouse main body (70)
Have multiple baffles (705), the multiple baffle (705) is at vertical direction interval and is arranged in parallel；
The hothouse main body (70) is divided into multiple interconnected drying air ducts (702) by the multiple baffle (705).
6. enclosed earth source heat pump drying system as claimed in claim 5, which is characterized in that the dry chamber inlet (701) is inner
Face is equipped with first circulation blower (801), is equipped with second circulation blower (802) inside the bend (703), is done for guaranteeing
Dry air velocity and flow direction；
7. the enclosed earth source heat pump drying system as described in any one of claim 4 to 6, which is characterized in that the hothouse
It is equipped with the air-cooled condenser (2) inside entrance (701), wind-cooled evaporator is installed inside the hothouse outlet (704)
(6)。
8. the enclosed earth source heat pump drying system as described in any one of claim 4 to 6, which is characterized in that described air-cooled cold
Condenser (2) is located in the first hollow ventilation shaft, and first ventilation shaft is connected with dry chamber inlet (701)；
The wind-cooled evaporator (6) is located in the second hollow ventilation shaft, and second ventilation shaft and hothouse export
(704) it is connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810945280.1A CN108955224A (en) | 2018-08-20 | 2018-08-20 | A kind of enclosed earth source heat pump drying system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810945280.1A CN108955224A (en) | 2018-08-20 | 2018-08-20 | A kind of enclosed earth source heat pump drying system |
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