CN207095085U - Heat pump and Analysis of Heat Pump Drying System - Google Patents
Heat pump and Analysis of Heat Pump Drying System Download PDFInfo
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- CN207095085U CN207095085U CN201720980539.7U CN201720980539U CN207095085U CN 207095085 U CN207095085 U CN 207095085U CN 201720980539 U CN201720980539 U CN 201720980539U CN 207095085 U CN207095085 U CN 207095085U
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Abstract
The utility model provides a kind of heat pump and Analysis of Heat Pump Drying System.Compressor, condenser, restricting element and evaporator are provided with the refrigerant flow of heat pump, it is additionally provided with auxiliary heat exchanging device and changeover module, the auxiliary heat exchanging device can be selectively accessing in the presence of the changeover module in the pipeline between the exhaust outlet of the compressor and the refrigerant inlet of the restricting element, or in the pipeline between the refrigerant exit of the access restricting element and the air entry of the compressor.Auxiliary heat exchanging device is provided with heat pump provided by the utility model, auxiliary heat exchanging device can use under changeover module effect selectively as condenser or evaporator, to meet different heat exchange demands, when being applied in Analysis of Heat Pump Drying System, can solve the problems, such as that start-up course existing for system is slow simultaneously by same auxiliary heat exchanging device, temperature adjustment can not be carried out, it is simple in construction, reduce system cost.
Description
Technical field
It the utility model is related to art of heat pumps, and in particular to a kind of heat pump and Analysis of Heat Pump Drying System.
Background technology
In conventional closed type hot pump drying system, because evaporator and condenser are arranged at the circulation air path of closing
It is interior, there is start-up course slowly, can not carry out the problem of temperature adjustment, in existing structure, typically by increasing auxiliary in systems
The mode of evaporator or auxiliary heater improves the toggle speed of system, by systems increase auxiliary condenser or
The mode of auxiliary cooler to carry out temperature adjustment to system, complicated, adds the cost of system.
Utility model content
In view of this, one of the purpose of this utility model is that existing Analysis of Heat Pump Drying System can be solved simultaneously by providing one kind
Start-up course is slow, can not carry out the problem of temperature adjustment and heat pump and Analysis of Heat Pump Drying System simple in construction, that cost is low.
To reach above-mentioned purpose, on the one hand, the utility model uses following technical scheme：
A kind of heat pump, compressor, condenser, restricting element and evaporation are provided with the refrigerant flow of heat pump
Device, is additionally provided with auxiliary heat exchanging device and changeover module, and the auxiliary heat exchanging device can be in the presence of the changeover module
It is selectively accessing in the pipeline between the exhaust outlet of the compressor and the refrigerant inlet of the restricting element, or access institute
State in the pipeline between the refrigerant exit of restricting element and the air entry of the compressor.
Preferably, the auxiliary heat exchanging device can be with the condenser and the evaporator series.
Preferably, the auxiliary heat exchanging device can access the exhaust of the compressor in the presence of the changeover module
In pipeline between mouth and the refrigerant inlet of the condenser；And/or
The auxiliary heat exchanging device can access the refrigerant exit of the restricting element in the presence of the changeover module
In pipeline between the refrigerant inlet of the evaporator.
Preferably, the first bypass branch being connected side by side with the condenser is additionally provided with, on first bypass branch
It is provided with first switch；
And/or
The second bypass branch being connected side by side with the evaporator is additionally provided with, is provided with second bypass branch
Two switches；
And/or
The 3rd bypass branch being connected side by side with the auxiliary heat exchanging device is additionally provided with, is set on the 3rd bypass branch
It is equipped with the 3rd switch.
Preferably, the changeover module includes the first four-way valve and unidirectional valve group, wherein,
First valve port of first four-way valve connects the air entry of the compressor, and the second valve port connects the compressor
Exhaust outlet, the 3rd valve port connects the first port of the auxiliary heat exchanging device；
The unidirectional valve group includes the first check valve, the second check valve, the 3rd check valve and the 4th check valve, wherein, institute
The port of export of the arrival end and the 4th check valve of stating the first check valve connects with the second port of the auxiliary heat exchanging device
Connecing, the refrigerant inlet of the port of export of first check valve and second check valve with the condenser is connected, and described
Fourth valve port of the port of export of the arrival end of two check valves and the 3rd check valve with first four-way valve is connected, described
Refrigerant exit of the arrival end of 3rd check valve and the 4th check valve with the evaporator is connected.
Preferably, the port of export of the 4th port of first four-way valve and the 3rd check valve, described second unidirectional
The 4th switch is provided with connecting line between the arrival end of valve；
And/or
The second port of the auxiliary heat exchanging device and the port of export, the arrival end of the first check valve of the 4th check valve
Between connecting line on be provided with the 5th switch；
And/or
Set on connecting line between the arrival end of the refrigerant exit of the evaporator and the three, the 4th check valve
There is the 6th switch；
And/or
The 7th switch is provided between the port of export of first, second check valve and the arrival end of the condenser.
Preferably, the changeover module includes the first four-way valve and the second four-way valve, wherein,
First valve port of first four-way valve connects the air entry of the compressor, and the second valve port connects the compressor
Exhaust outlet, the 3rd valve port connects the first port of the auxiliary heat exchanging device, and the 4th valve port connects second four-way valve
3rd port；
The first port of second four-way valve connects the refrigerant inlet of the condenser, and second port connects the evaporation
The refrigerant exit of device, the 4th port connect the second port of the auxiliary heat exchanging device.
On the other hand, the utility model uses following technical scheme：
A kind of Analysis of Heat Pump Drying System, including heat pump as described above, in addition to for circulating in space to be dried
The circulation canal of cycle fluid, the evaporator and the condenser are arranged in the circulation canal, the auxiliary heat-exchanging
Device is arranged on outside the circulation canal.
Auxiliary heat exchanging device is provided with heat pump provided by the utility model, auxiliary heat exchanging device can be in switch groups
Used under part effect selectively as condenser or evaporator, to meet different heat exchange demands, be applied to heat pump
When in drying system, by same auxiliary heat exchanging device can solve simultaneously start-up course existing for system slowly, can not
The problem of carrying out temperature adjustment, it is simple in construction, reduce system cost.
Brief description of the drawings
By the description to the utility model embodiment referring to the drawings, of the present utility model above-mentioned and other mesh
, feature and advantage will be apparent from, in the accompanying drawings：
Fig. 1 shows one of structural representation of Analysis of Heat Pump Drying System that the utility model embodiment provides；
Fig. 2 shows the two of the structural representation for the Analysis of Heat Pump Drying System that the utility model embodiment provides；
Fig. 3 shows the three of the structural representation for the Analysis of Heat Pump Drying System that the utility model embodiment provides；
Fig. 4 shows the four of the structural representation for the Analysis of Heat Pump Drying System that the utility model embodiment provides.
In figure, 1, compressor；2nd, condenser；3rd, restricting element；4th, evaporator；5th, circulation air path；6th, space to be dried；7、
Inner blower；8th, heat pipe；9th, auxiliary heat exchanging device；10th, outer blower fan；11st, the first bypass branch；111st, the first magnetic valve；12nd, second
Bypass branch；121st, second solenoid valve；13rd, the 3rd bypass branch；131st, the 3rd magnetic valve；14th, the first four-way valve；151st, first
Check valve；152nd, the second check valve；153rd, the 3rd check valve；154th, the 4th check valve；16th, the 5th check valve；17th, the second four-way
Valve；18th, big valve；19th, minor valve；20th, big valve；21st, minor valve.
Embodiment
The utility model is described below based on embodiment, it should be understood by one skilled in the art that carrying herein
The accompanying drawing of confession is provided to the purpose of explanation, and accompanying drawing is not necessarily drawn to scale.
Unless the context clearly requires otherwise, otherwise entire disclosure is similar with the " comprising " in claims, "comprising" etc.
Word should be construed to the implication included rather than exclusive or exhaustive implication；That is, it is containing for " including but is not limited to "
Justice.
This application provides a kind of heat pump, introduces its tool so that heat pump is applied to Analysis of Heat Pump Drying System as an example below
Body structure, it is, of course, understood that the heat pump is equally applicable in the system that other have similar heat exchange demand.Such as
Shown in Fig. 1, Analysis of Heat Pump Drying System includes heat pump, circulation canal and heat pipe 8, wherein, on the refrigerant flow of heat pump
Compressor 1, condenser 2, restricting element 3 and evaporator 4 are provided with, wherein, restricting element 3 for example can be electric expansion valve,
Can also be the structure that other can play throttling action, compressor 1, condenser 2, restricting element 3 and evaporator 4 can be formed
Conventional refrigerant circulation circuit.Condenser 2 and evaporator 4 are arranged in circulation canal, and circulation canal is to be dried for circulating
Cycle fluid in space 6, cycle fluid are, for example, air, and circulation canal is circulation air path 5, the air inlet of circulation air path 5 and
Air outlet is connected with space 6 to be dried, and inner blower 7 is additionally provided with circulation air path 5, is driven and is treated in the presence of inner blower 7
Cycle fluid such as air in dry place 6 is dried with treating dry place 6 in the internal circulation flow of circulation air path 5.Heat
The heat absorbing end of pipe 8, release end of heat are respectively arranged air inlet and air outlet in evaporator 4, and the air inlet/outlet of evaporator 4 must all pass through
The both ends of heat pipe 8, heat pipe circulation can use the forms such as gravity circulation, pump circulation, siphonage.Working medium in heat absorbing end is because exist
Temperature difference and absorbing heat, which is evaporated to condense up to release end of heat, to radiate, and then because of gravity, either pump or siphonage are back to low temperature
End, form a heat pipe circulation.While reduction by 4 entrance cycle fluid temperature of evaporator being circulated in by heat pipe, heating evaporation
The cycle fluid temperature that device 4 exports, so as to also reduce the heating of condenser 2 while the cooling load of evaporator 4 is reduced
Load, also allowing for the fan-out capability of whole system reduces, and so as to improve efficiency, cuts operating costs.
Further, heat pump also includes auxiliary heat exchanging device 9 and changeover module, and auxiliary heat exchanging device 9 can cut
Change in the presence of component be selectively accessing in the pipeline between the exhaust outlet of compressor 1 and the refrigerant inlet of restricting element 3 with
As auxiliary condenser, and in pipeline between the refrigerant exit of access restricting element 3 and the air entry of compressor 1 for use as
Auxiliary evaporator.
Auxiliary heat exchanging device 9 is arranged on outside circulation air path 5, it is preferable that the side of auxiliary heat exchanging device 9 is additionally provided with outer
Blower fan 10, outer blower fan 10 can promote outside air to carry out heat exchange with auxiliary heat exchanging device 9, in this way, working as heat pump drying system
In startup stage, (startup stage described herein is that Analysis of Heat Pump Drying System unlatching reaches predetermined temperature to cycle fluid to system
Stage) when, auxiliary heat exchanging device 9 is accessed in the pipeline between the refrigerant exit of restricting element 3 and the air entry of compressor 1,
So as to which auxiliary heat exchanging device 9 is used as into auxiliary evaporator, heat pump can be filled by the auxiliary heat-exchanging as auxiliary evaporator
9 suck up outside heats are put to be used to be heated to the cycle fluid in circulation air path 5, so as to accelerate start-up course, specifically, by
Low temperature is in the refrigerant in the auxiliary heat exchanging device 9 as auxiliary evaporator, low-temp low-pressure refrigerant absorbs outside
Gasification is evaporated after heat in air, the low pressure refrigerant after gasification enters compression in compressor 1 and becomes the gaseous state of HTHP
Refrigerant, and be discharged into condenser 2, so as to which the outside heat of absorption to be passed to the circulation industrial in circulation air path 5 by condenser 2
Matter, and then accelerate the programming rate of cycle fluid in circulation air path 5, to accelerate system toggle speed.
When Analysis of Heat Pump Drying System runs temperature adjustment pattern, that is, the environment temperature for needing to treat in dry place 6 is adjusted
When, auxiliary heat exchanging device 9 is accessed in the pipeline between the exhaust outlet of compressor 1 and the refrigerant inlet of restricting element 3, so that will
Auxiliary heat exchanging device 9 is used as auxiliary condenser, and heat pump can be outside by the auxiliary heat exchanging device 9 as auxiliary condenser
Portion's surrounding air discharges heat unnecessary in space 6 to be dried, to reach the purpose of temperature adjustment.Specifically, due to cold as aiding in
Than the external world, (external world herein refers to space 6 to be dried and circulation air path to refrigerant temperature in the auxiliary heat exchanging device 9 of condenser
Environment outside 5) temperature is high, therefore the heat of refrigerant can outwardly discharge in auxiliary heat exchanging device 9, to reach the mesh of cooling
's.
When in the refrigerant circulation circuit that auxiliary heat exchanging device 9 accesses heat pump, auxiliary heat exchanging device 9 and condenser 2
And evaporator 4 can be formed and is connected in series, and can also be formed and be connected in parallel.
When auxiliary heat exchanging device 9 and condenser 2 and evaporator 4 are all formed as being connected in series, it is preferable that heat pump drying system
For system in startup stage, auxiliary conversion equipment 9 accesses the refrigerant exit and evaporator 4 of restricting element 3 in the presence of changeover module
Refrigerant inlet between pipeline in so that by restricting element 3 throttling after refrigerant initially enter in auxiliary heat exchanging device 9
Row heat exchange, so as to increase the heat that auxiliary heat exchanging device 9 absorbs from the external world, and then further improve the toggle speed of system.Class
As, for Analysis of Heat Pump Drying System when running temperature adjustment pattern, auxiliary conversion equipment 9 accesses compressor 1 in the presence of changeover module
Exhaust outlet and condenser 2 refrigerant inlet between so that through compressor 1 compression after refrigerant initially enter auxiliary heat exchanging device
Exchanged heat in 9, so as to increase the heat that auxiliary heat exchanging device 9 outwardly discharges, and then improve the speed of system temperature adjustment.
In replacement or preferred embodiment, on condenser 2 and the first bypass branch 11, i.e. condenser 2 are connected to
It is connected side by side with the first bypass branch 11, first switch is provided with the first bypass branch 11, first switch for example can be Fig. 1
Shown in the first magnetic valve 111, when Analysis of Heat Pump Drying System runs temperature adjustment pattern, can pass through and control first magnetic valve 111
Open and close to carry out temperature adjustment, specifically, according to temperature control demand refrigerant can be selected to pass through (the first magnetic valve 111 from condenser 2
Close), or from the bypass branch 11 of condenser 2 and first simultaneously by (the first magnetic valve 111 is opened), so as to realize to circulation
The regulation of Temperature of Working, i.e. refrigerant from condenser 2 by when, there is part refrigerant to exchange heat in the condenser 2, now with circulation industrial
The heat exchange amount of matter is big, refrigerant from the bypass branch 11 of condenser 2 and first simultaneously by when, most of refrigerant is all by the first bypass
Branch road 11, which enters, carries out heat release in auxiliary heat exchanging device 9, now small with the heat exchange amount of cycle fluid.
On evaporator 4 and being connected to the second bypass branch 12, i.e. evaporator 4 is connected side by side with the second bypass branch 12, and second
Second switch is provided with bypass branch 12, second switch for example can be the second solenoid valve 121 shown in Fig. 1, in heat pump
The startup stage of drying system, second solenoid valve 121 is opened, only small part refrigerant enters evaporator 4, and most of refrigerant exists
Absorbed heat in auxiliary heat exchanging device 9, so as to further improve the toggle speed of system.
On auxiliary heat exchanging device 9 and it is connected to the 3rd bypass branch 13, the i.e. bypass branch 13 of auxiliary heat exchanging device 9 and the 3rd simultaneously
Row are connected, and the 3rd switch is provided with the 3rd bypass branch 13, and the 3rd switch for example can be the 3rd magnetic valve shown in Fig. 1
131, when Analysis of Heat Pump Drying System runs conventional drying pattern, the 3rd magnetic valve 131 is in open mode, so as to reduce refrigerant
Flow resistance, ensure system energy efficiency.
Further, changeover module can be the structure that can arbitrarily realize above-mentioned function, can pass through two-port valve, threeway
The Switching Elements such as valve, four-way valve, check valve are combined to meet the requirement of the link position change to auxiliary heat exchanging device 9.
For example, in one embodiment, as shown in fig. 1, changeover module includes the first four-way valve 14 and unidirectional valve group, its
In, the air entry of the first valve port connection compressor 1 of the first four-way valve 14, the exhaust outlet of the second valve port connection compressor 1, the 3rd
Valve port connects the first port of auxiliary heat exchanging device 9.Unidirectional valve group includes the first check valve 151, the second check valve the 152, the 3rd
The check valve 154 of check valve 153 and the 4th, wherein, the arrival end of the first check valve 151 and the port of export of the 4th check valve 154 are equal
Be connected with the second port of auxiliary heat exchanging device 9, the port of export of the first check valve 151 and the second check valve 152 with condenser 2
Refrigerant inlet connection, the arrival end of the second check valve 152 and the port of export of the 3rd check valve 153 with the first four-way valve 14
Refrigerant exit of the arrival end of the connection of 4th valve port, the 3rd check valve 153 and the 4th check valve 154 with evaporator 4 is connected.The
One four-way valve 14 is arranged to, and when upper electric, first port inside the 3rd port with turning on, and second port inside the 4th port with leading
Logical, during dead electricity, first port inside the 4th port with turning on, and second port inside the 3rd port with turning on.Preferably, to avoid
The refrigerant adverse current of 3rd bypass branch 13, is provided with the 5th check valve 16, the 5th check valve 16 is only on the 3rd bypass branch 13
Refrigerant is allowed to be flowed from the second port of auxiliary heat exchanging device 9 to the direction of first port.It is understood that the 5th check valve
16 can also replace with switch.
Analysis of Heat Pump Drying System has temperature adjustment pattern and conventional drying pattern, the control method of Analysis of Heat Pump Drying System shown in Fig. 1
Including：
Electric on the startup stage of Analysis of Heat Pump Drying System, the first four-way valve 14, second solenoid valve 121 is opened, the first electromagnetism
The magnetic valve 131 of valve 111 and the 3rd is closed, and the glide path of refrigerant is：
In startup stage, auxiliary heat exchanging device 9 is used as auxiliary evaporator, and evaporator 4 is due to by the second bypass branch 12
Bypass, therefore only a small amount of refrigerant is by evaporator 4, and most of refrigerant passes through the second bypass branch 12 and enters auxiliary heat-exchanging and fills
9 heat exchange are put, refrigerant is absorbed the heat in the external world at auxiliary heat exchanging device 9 and cycle fluid is heated using it so that is followed
Ring working medium reaches preset temperature as early as possible, to complete the start-up course of Analysis of Heat Pump Drying System.
When Analysis of Heat Pump Drying System runs conventional drying pattern, electricity on the first four-way valve 14, the 3rd magnetic valve 131 is opened,
First magnetic valve 111 and second solenoid valve 121 are closed, and the glide path of refrigerant is：
In this mode, the moisture and hot ageing working medium for flowing through evaporator 4 is cooled, if the cycle fluid temperature after cooling is low
Dew-point temperature under its current pressure, then the moisture in cycle fluid will condense, so as to remove the part in cycle fluid
Moisture and the cycle fluid for forming saturation, heat temperature raising, its relative humidity decline the cycle fluid of saturation within the condenser, so as to
Possesses the stronger ability for absorbing moisture in material again.Above-mentioned cyclic process constantly can absorb moisture simultaneously from material
The external world is discharged to, to reach dry purpose.
Because the 3rd magnetic valve 131 is opened, due to being bypassed by the 3rd bypass branch 13, evaporator 4 goes out auxiliary heat exchanging device 9
The low pressure refrigerant overwhelming majority come is by returning to compressor 1 after the 3rd bypass branch 13, so as to reduce the resistance of refrigerant flowing.
When Analysis of Heat Pump Drying System runs temperature adjustment pattern, the not upper electricity of the first four-way valve 14, second solenoid valve 121 is closed, by
In being provided with the 5th check valve 16 on the 3rd bypass branch 13, the 3rd magnetic valve 131 can be opened and can also closed, and pass through control
The opening and closing of first magnetic valve 111 carry out temperature adjustment.
When the first magnetic valve 111 is opened, the glide path of refrigerant is：
When the first magnetic valve 111 is closed, the glide path of refrigerant is：
Compressor → the first four-way valve → auxiliary heat exchanging device → the first check valve → condenser → restricting element → evaporation
Check valve (the 4th check valve is not turned on because of reverse pressure difference) → first four-way valve → compressor of device → the 3rd
In this mode, auxiliary heat exchanging device 9 is used as auxiliary condenser, and series connection, heat pump are in condenser 2
Unnecessary heat is discharged by the external environment air of auxiliary heat exchanging device 9, selects refrigerant logical from condenser 2 according to temperature control demand
Cross (the first magnetic valve 111 is closed), or from the bypass branch 11 of condenser 2 and first simultaneously by the way that (the first magnetic valve 111 is beaten
Open), so as to realize the regulation to cycle fluid temperature.
Further, can also as shown in Figure 2, in the 4th port of the first four-way valve 14 and the 3rd check valve 153
The port of export, the second check valve 152 arrival end between connecting line on be provided with the 4th switch, the 4th switch for example, big valve
Door 18, the arrival end of the port of export, the first check valve 151 in second port and the 4th check valve 154 of auxiliary heat exchanging device 9 it
Between connecting line on be provided with the 5th switch, the 5th switch for example, minor valve 19, the setting of big valve 18 and minor valve 19
Erection stage can be carried out in equipment to close refrigerant flow, so as to facilitate the installation of equipment.Alternatively, as shown in Figure 3, exist
The 6th is provided with connecting line between the arrival end of the refrigerant exit of evaporator 4 and the three, the 4th check valves 153,154 to open
Close, the 6th switch for example, big valve 20, between the port of export of first, second check valve 151,152 and the arrival end of condenser 2
It is provided with the 7th switch, the 7th switch for example, minor valve 21.
In another embodiment, as shown in figure 4, unidirectional valve group can be replaced with to the second four-way valve 17, i.e. changeover module
Including the first four-way valve 14 and the second four-way valve 17, wherein, the air-breathing of the first valve port connection compressor 1 of the first four-way valve 14
Mouthful, the second valve port connects the exhaust outlet of compressor 1, and the 3rd valve port connects the first port of auxiliary heat exchanging device 9, and the 4th valve port connects
Connect the 3rd port of the second four-way valve 17；The refrigerant inlet of the first port connection condenser 2 of second four-way valve 17, second port
The refrigerant exit of evaporator 4 is connected, the 4th port connects the second port of auxiliary heat exchanging device 9.First four-way valve 14 is arranged to,
When upper electric, being turned on inside first port and the 3rd port, second port inside the 4th port with turning on, during dead electricity, first port
With being turned on inside the 4th port, second port inside the 3rd port with turning on.Second four-way valve 17 is arranged to, when upper electric, first
Turned on inside port and the 3rd port, second port inside the 4th port with turning on, during dead electricity, first port with the 4th port
Portion turns on, and second port inside the 3rd port with turning on.
The control method of Analysis of Heat Pump Drying System shown in Fig. 4 includes：
In the startup stage of Analysis of Heat Pump Drying System, the first four-way valve 14 and the second four-way valve 17 are both powered up, second solenoid valve
121 are opened, and the first magnetic valve 111 and the 3rd magnetic valve 131 are closed, and the glide path of refrigerant is：
When Analysis of Heat Pump Drying System runs conventional drying pattern, the first four-way valve 14 and the second four-way valve 17 are both powered up, the
Three magnetic valves 131 are opened, and the first magnetic valve 111 and second solenoid valve 121 are closed, and the glide path of refrigerant is：
When Analysis of Heat Pump Drying System runs temperature adjustment pattern, the first four-way valve 14 and the not upper electricity of the second four-way valve 17, second
Magnetic valve 121 is closed, and due to being provided with the 5th check valve 16 on the 3rd bypass branch 13, the 3rd magnetic valve 131 can be opened
It can close, temperature adjustment is carried out by controlling the opening and closing of the first magnetic valve 111.
When the first magnetic valve 111 is opened, the glide path of refrigerant is：
When the first magnetic valve 111 is closed, the glide path of refrigerant is：
Compressor → the first four-way valve → auxiliary heat exchanging device → the second four-way valve → condenser → restricting element → evaporation
The four-way valve of device → second → the first four-way valve → compressor
Shown in Fig. 4 dry heat pump under different mode state the flow process of refrigerant and heat exchange principle and Fig. 1
Shown drying heat pump is similar, will not be repeated here.
Auxiliary heat exchanging device 9 can also optionally be formed in the presence of changeover module with evaporator 4 or condenser 2
And connect, and connect mode and can reduce the flow resistance of refrigerant, while increase the efficiency of system.With connecting analogously, can pass through
Combining to meet the connection to auxiliary heat exchanging device 9 for the Switching Elements such as two-port valve, triple valve, four-way valve, check valve is set
The requirement that position changes, to cause the startup stage auxiliary heat exchanging device 9 in Analysis of Heat Pump Drying System to be used as auxiliary evaporator and steaming
It is in parallel to send out device 4, and auxiliary heat exchanging device 9 is as auxiliary condenser and condenser 2 when Analysis of Heat Pump Drying System runs temperature adjustment pattern
It is in parallel.
For those skilled in the art it is easily understood that on the premise of not conflicting, above-mentioned each preferred scheme can be free
Ground combination, superposition.
Preferred embodiment of the present utility model is the foregoing is only, is not limited to the utility model, for this area
For technical staff, the utility model can have various changes and change.All institutes within spirit of the present utility model and principle
Any modification, equivalent substitution and improvements of work etc., should be included within the scope of protection of the utility model.
Claims (8)
1. a kind of heat pump, compressor, condenser, restricting element and evaporation are provided with the refrigerant flow of heat pump
Device, it is characterised in that be additionally provided with auxiliary heat exchanging device and changeover module, the auxiliary heat exchanging device can be in the switch groups
It is selectively accessing in the presence of part in the pipeline between the exhaust outlet of the compressor and the refrigerant inlet of the restricting element,
Or in the pipeline between the refrigerant exit of the access restricting element and the air entry of the compressor.
2. heat pump according to claim 1, it is characterised in that the auxiliary heat exchanging device can be with the condenser
With the evaporator series.
3. heat pump according to claim 1, it is characterised in that the auxiliary heat exchanging device can be in the switch groups
Accessed in the presence of part in the pipeline between the exhaust outlet of the compressor and the refrigerant inlet of the condenser；And/or
The auxiliary heat exchanging device can access refrigerant exit and the institute of the restricting element in the presence of the changeover module
State in the pipeline between the refrigerant inlet of evaporator.
4. the heat pump according to one of claims 1 to 3, it is characterised in that be additionally provided with arranged side by side with the condenser
First bypass branch of connection, first switch is provided with first bypass branch；
And/or
The second bypass branch being connected side by side with the evaporator is additionally provided with, being provided with second on second bypass branch opens
Close；
And/or
The 3rd bypass branch being connected side by side with the auxiliary heat exchanging device is additionally provided with, is provided with the 3rd bypass branch
3rd switch.
5. the heat pump according to one of claims 1 to 3, it is characterised in that the changeover module includes the first four-way
Valve and unidirectional valve group, wherein,
First valve port of first four-way valve connects the air entry of the compressor, and the second valve port connects the row of the compressor
Gas port, the 3rd valve port connect the first port of the auxiliary heat exchanging device；
The unidirectional valve group includes the first check valve, the second check valve, the 3rd check valve and the 4th check valve, wherein, described the
Second port of the port of export of the arrival end of one check valve and the 4th check valve with the auxiliary heat exchanging device is connected, institute
State refrigerant inlet of the port of export of the first check valve and second check valve with the condenser to be connected, described second is unidirectional
Fourth valve port of the port of export of the arrival end of valve and the 3rd check valve with first four-way valve is connected, and the described 3rd is single
Refrigerant exit to the arrival end of valve and the 4th check valve with the evaporator is connected.
6. heat pump according to claim 5, it is characterised in that the 4th port of first four-way valve and described the
The port of export of three check valves, second check valve arrival end between connecting line on be provided with the 4th switch；
And/or
The port of export of the second port of the auxiliary heat exchanging device and the 4th check valve, the first check valve arrival end between
Connecting line on be provided with the 5th switch；
And/or
Is provided with connecting line between the arrival end of the refrigerant exit of the evaporator and the 3rd, the 4th check valve
Six switches；
And/or
The 7th switch is provided between the port of export of first, second check valve and the arrival end of the condenser.
7. the heat pump according to one of claims 1 to 3, it is characterised in that the changeover module includes the first four-way
Valve and the second four-way valve, wherein,
First valve port of first four-way valve connects the air entry of the compressor, and the second valve port connects the row of the compressor
Gas port, the 3rd valve port connect the first port of the auxiliary heat exchanging device, and the 4th valve port connects the 3rd of second four-way valve
Port；
The first port of second four-way valve connects the refrigerant inlet of the condenser, and second port connects the evaporator
Refrigerant exit, the 4th port connect the second port of the auxiliary heat exchanging device.
A kind of 8. Analysis of Heat Pump Drying System, it is characterised in that including the heat pump as described in one of claim 1 to 7, in addition to
For circulating the circulation canal of the cycle fluid in space to be dried, the evaporator and the condenser are arranged at described follow
In ring passage, the auxiliary heat exchanging device is arranged on outside the circulation canal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720980539.7U CN207095085U (en) | 2017-08-07 | 2017-08-07 | Heat pump and Analysis of Heat Pump Drying System |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720980539.7U CN207095085U (en) | 2017-08-07 | 2017-08-07 | Heat pump and Analysis of Heat Pump Drying System |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207095085U true CN207095085U (en) | 2018-03-13 |
Family
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107560230A (en) * | 2017-08-07 | 2018-01-09 | 珠海格力电器股份有限公司 | Heat pump, Analysis of Heat Pump Drying System and its control method |
| CN109099696A (en) * | 2018-06-12 | 2018-12-28 | 东南大学 | A kind of solar-assisted heat pump drying system method and device |
| CN115289827A (en) * | 2022-07-19 | 2022-11-04 | 康特(苏州)能源环境设备有限公司 | Closed zero-humidity-discharge efficient heat pump drying device and drying method |
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2017
- 2017-08-07 CN CN201720980539.7U patent/CN207095085U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107560230A (en) * | 2017-08-07 | 2018-01-09 | 珠海格力电器股份有限公司 | Heat pump, Analysis of Heat Pump Drying System and its control method |
| CN107560230B (en) * | 2017-08-07 | 2023-12-08 | 珠海格力电器股份有限公司 | Heat pump system, heat pump drying system and control method thereof |
| CN109099696A (en) * | 2018-06-12 | 2018-12-28 | 东南大学 | A kind of solar-assisted heat pump drying system method and device |
| CN115289827A (en) * | 2022-07-19 | 2022-11-04 | 康特(苏州)能源环境设备有限公司 | Closed zero-humidity-discharge efficient heat pump drying device and drying method |
| CN115289827B (en) * | 2022-07-19 | 2023-09-22 | 康特(苏州)能源环境设备有限公司 | Closed type zero-wet-emission efficient heat pump drying device and drying method |
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