CN206281264U - A kind of air handling system - Google Patents
A kind of air handling system Download PDFInfo
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- CN206281264U CN206281264U CN201621158667.5U CN201621158667U CN206281264U CN 206281264 U CN206281264 U CN 206281264U CN 201621158667 U CN201621158667 U CN 201621158667U CN 206281264 U CN206281264 U CN 206281264U
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- Prior art keywords
- bypass pipe
- heat exchanger
- handling system
- regenerative apparatus
- air handling
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Abstract
The utility model is related to air-conditioning technique field, there is provided a kind of air handling system.Wherein, in air handling system, indoor heat exchanger the first bypass pipe of parallel connection, and indoor heat exchanger and the first bypass pipe select a connection；Compressor return air mouthful is in parallel with the return line between reversing arrangement to be provided with the second bypass pipe, and the second bypass pipe connection regenerative apparatus is exchanged heat with regenerative apparatus, and the second bypass pipe is connected with return line at least one.In the program, because indoor heat exchanger is parallel with the first bypass pipe, then in defrost, refrigerant is returned directly to reversing arrangement without in the machine of getting in by the first bypass pipe, it is to avoid cause the problem of poor user experience to indoor refrigeration during defrost.Also, because return line is parallel with the second bypass pipe, and the second bypass pipe by regenerative apparatus, the temperature of the refrigerant in compressor is returned to such that it is able to improve, and then improve heating efficiency during defrosting.
Description
Technical field
The utility model is related to air-conditioning technique field, more particularly to a kind of air handling system.
Background technology
Can there is frosting in air handling system, defrosting problem is always sky when heat pump mode is run in low temperature environment
Adjust the research emphasis of industry professional.The formation of frost layer and influence factor are more complicated, and major influence factors have cooling surface, room
Outer weather conditions and time.When air handling system is used in the very low environment of outdoor temperature in the winter time, the evaporation temperature of its working medium
Degree is very low, and the moisture in air easily condenses into frost in evaporator surface, especially in the big regional frost of air humidity more
Easily occur, and frosting can then increase outdoor unit windage, cause outdoor heat exchanger heat transfer coefficient to decline.With the drop of evaporating temperature
Low, under certain condensation temperature, the coefficient of performance in heating of heat pump is also accordingly reduced, so as to the utilization rate for causing heat energy declines.
Therefore, frosting, quickening defrosting speed are reduced as far as possible can effectively improve heating effect, reduce operating cost, improve
The low-temperature heating efficiency of pump type heat air handling system.
In addition, the reverse cycle defrosting mode that heat pump air conditioner in the market is used mostly, during defrosting, indoor set serves as
Evaporator, causes room temperature to fluctuate, and very big room heats comfortableness.
Utility model content
(1) technical problem to be solved
The purpose of this utility model is：A kind of air handling system is provided, the process that defrosted present in prior art is solved
Middle heating efficiency is low, the problem of poor user experience.
(2) technical scheme
In order to solve the above-mentioned technical problem, the utility model provides a kind of air handling system, including：Connected by pipeline
Compressor, indoor heat exchanger and the outdoor heat exchanger to form loop are connect, wherein, the compressor passes through reversing arrangement and the room
Interior heat exchanger and outdoor heat exchanger are connected, and throttling arrangement, institute are connected between the indoor heat exchanger and the outdoor heat exchanger
Indoor heat exchanger the first bypass pipe of parallel connection is stated, and the indoor heat exchanger selects a connection with first bypass pipe；The compression
Return line between machine gas returning port and the reversing arrangement is in parallel to be provided with the second bypass pipe, and second bypass pipe connects accumulation of heat
Device is exchanged heat with regenerative apparatus, and second bypass pipe is connected with the return line at least one.
Preferably, the regenerative apparatus is arranged on the compressor case, for absorbing and is stored outside the compressor
The used heat of shell.
Preferably, the regenerative apparatus is provided with the electric heater for supplementary heating.
Preferably, first bypass pipe accesses the loop by the first triple valve, wherein, the indoor heat exchanger and
First bypass pipe connects two outlets of first triple valve respectively, and the throttling arrangement connects first triple valve
Entrance.
Preferably, it is provided with the switch valve for controlling pipeline section break-make on the return line and second bypass pipe.
Preferably, outlet pipe between the gas outlet of the compressor and the reversing arrangement is in parallel to be provided with the 3rd bypass
Pipe, the 3rd bypass pipe connects the regenerative apparatus and is exchanged heat with regenerative apparatus, and the 3rd bypass pipe and the escaping pipe
Lu Zeyi is connected.
Preferably, the 3rd bypass pipe is by the second triple valve access loop.
Preferably, it is connected with gas-liquid separator in the return line.
(3) beneficial effect
The technical solution of the utility model has advantages below：A kind of air handling system of the present utility model, including：It is logical
Cross pipeline and connect compressor, indoor heat exchanger and the outdoor heat exchanger to form loop, wherein, the compressor passes through reversing arrangement
It is connected with the indoor heat exchanger and outdoor heat exchanger, throttling is connected between the indoor heat exchanger and the outdoor heat exchanger
Device, the first bypass pipe of the indoor heat exchanger parallel connection, and the indoor heat exchanger selects a connection with first bypass pipe；Institute
State that compressor return air is mouthful in parallel with the return line between the reversing arrangement to be provided with the second bypass pipe, second bypass pipe connects
Regenerative apparatus is connect to be exchanged heat with regenerative apparatus, and second bypass pipe is connected with the return line at least one.In the program,
Because indoor heat exchanger is parallel with the first bypass pipe, then in defrost, refrigerant is returned directly to reversing arrangement by the first bypass pipe
Without in the machine of getting in, it is to avoid cause the problem of poor user experience to indoor refrigeration during defrost.Also, due to muffler
Road is parallel with the second bypass pipe, and the second bypass pipe by regenerative apparatus, such that it is able to improve the refrigerant returned in compressor
Temperature, and then improve defrosting during heating efficiency.
Brief description of the drawings
In order to illustrate more clearly of the utility model embodiment or technical scheme of the prior art, below will be to embodiment
Or the accompanying drawing to be used needed for description of the prior art is briefly described, it should be apparent that, drawings in the following description are only
It is some embodiments of the present utility model, for those of ordinary skill in the art, is not paying the premise of creative work
Under, other accompanying drawings can also be obtained according to these accompanying drawings.
Fig. 1 is the structural representation of the air handling system of embodiment one；
Fig. 2 is the structural representation of the air handling system of embodiment two；
In figure：1st, compressor；2nd, gas-liquid separator；3rd, electric heater；4th, regenerative apparatus；5th, four-way valve；6th, throttling arrangement；
7th, electromagnetic switch valve；8th, stop valve；9th, outdoor heat exchanger；10th, indoor heat exchanger；11st, the first triple valve；12nd, the second triple valve.
Specific embodiment
Implementation method of the present utility model is described in further detail with reference to the accompanying drawings and examples.Following examples
For illustrating the utility model, but can not be used for limiting scope of the present utility model.
In description of the present utility model, it is necessary to explanation, term " " center ", " longitudinal direction ", " transverse direction ", " on ", D score,
The orientation or position relationship of the instruction such as "front", "rear", "left", "right", " vertical ", " level ", " top ", " bottom ", " interior ", " outward " are
Based on orientation shown in the drawings or position relationship, it is for only for ease of description the utility model and simplifies description, rather than instruction
Or imply that the device or element of meaning with specific orientation, with specific azimuth configuration and operation, therefore must not be understood that
It is to limitation of the present utility model.Additionally, term " first ", " second ", " the 3rd " are only used for describing purpose, and it is not intended that
Indicate or imply relative importance.
, it is necessary to illustrate in description of the present utility model, unless otherwise clearly defined and limited, term " phase
Company ", " connection " should be interpreted broadly, for example, it may be being fixedly connected, or being detachably connected, or be integrally connected；Can
Being to mechanically connect, or electrically connect；Can be joined directly together, it is also possible to be indirectly connected to by intermediary.For this
For the those of ordinary skill in field, concrete meaning of the above-mentioned term in the utility model can be understood with concrete condition.
Embodiment one
Refer to Fig. 1, a kind of air handling system of the present embodiment one, including：The pressure to form loop is connected by pipeline
Contracting machine 1, indoor heat exchanger 10 and outdoor heat exchanger 9, wherein, the compressor 1 passes through reversing arrangement and the indoor heat exchanger
10 and outdoor heat exchanger 9 connect, throttling arrangement 6 is connected between the indoor heat exchanger 10 and the outdoor heat exchanger 9.This
Outward, first bypass pipe in parallel of the indoor heat exchanger 10, and the indoor heat exchanger 10 selects a connection with first bypass pipe；
Return line between the gas returning port of the compressor 1 and the reversing arrangement is in parallel to be provided with the second bypass pipe, second bypass
Pipe connection regenerative apparatus 4 is exchanged heat with regenerative apparatus 4, and second bypass pipe is connected with the return line at least one.
In the present embodiment one, because indoor heat exchanger 10 is parallel with the first bypass pipe, then in defrost refrigerant by the
Bypass line is returned directly to reversing arrangement without in the machine of getting in, it is to avoid cause Consumer's Experience to indoor refrigeration during defrost
Poor problem.Also, because return line is parallel with the second bypass pipe, and the second bypass pipe is by regenerative apparatus 4, such that it is able to
Raising returns to the temperature of the refrigerant in compressor 1, and then improves heating efficiency during defrosting.
As can be known from Fig. 1, regenerative apparatus 4 is arranged on the shell of the compressor 1, for absorbing and stores the compressor
The used heat of 1 shell, so as to realize the recycling of energy, meets the requirement of energy-conserving and environment-protective.
Wherein, regenerative apparatus 4 is preferably phase transition heat accumulation unit 4, including accumulation of heat casing and is filled in the accumulation of heat casing
Heat-storing material.Accumulation of heat casing can fit with the shell of compressor 1, to absorb the used heat of the generation of compressor 1.Additionally, accumulation of heat material
Preferably using paraffin and the mixture of vulcanization expanded graphite, certain heat-storing material do not limited material by citing is originally gone out, and it can be with
It is other suitable materials.
In order to realize " selecting a connection between the bypass pipe of indoor heat exchanger 10 and first ", preferably the first bypass pipe is by the
One triple valve 11 accesses the loop.Specifically refer to Fig. 1, the first outlet of the triple valve 11 of the indoor heat exchanger 10 and first
The second outlet connection of connection, first bypass pipe and the first triple valve 11, the throttling arrangement 6 connects first threeway
The entrance of valve 11.So as to when being turned between the entrance and first outlet of the first triple valve 11, now indoor heat exchanger 10 is connected
And the first bypass pipe disconnects, so that during refrigerant returns to reversing arrangement by indoor heat exchanger 10., whereas if the first triple valve
Between 11 entrance and second outlet turn on, then indoor heat exchanger 10 disconnect and the first bypass pipe connect so that refrigerant without
Cross indoor heat exchanger 10.
It should be noted that in order to realize selecting a connection between the bypass pipe of indoor heat exchanger 10 and first, can also be by
The bypass pipe of indoor heat exchanger 10 and first connects a switching control pilot respectively.
Further, in order to realize " the second bypass pipe is connected with the return line at least one ", return line and institute
State the switch valve that control pipeline section break-make is provided with the second bypass pipe.Fig. 1 is specifically referred to, is wherein connected with return line
One electromagnetic switch valve 7, is connected with a stop valve 8 on the second bypass pipe.Certainly, in return line and second bypass pipe
The type of switch valve does not receive limitation listed herewith.Also, " the second bypass pipe and the return-air can also be realized using triple valve
Pipeline at least one is connected ", its realization principle and above-mentioned first triple valve 11 realize the " indoor heat exchanger 10 and described first
Bypass pipe selects a connection " principle it is identical, here is omitted.
Wherein, when the second bypass pipe is connected, then the suction temperature of compressor 1 can be lifted, it is ensured that air handling system
Heating performance.
In the present embodiment one, but preferably necessarily it is provided with regenerative apparatus 4 electric heater 3 for supplementary heating.
Regenerative apparatus 4 combines electric heater 3 and lifts delivery temperature, to ensure that the temperature in regenerative apparatus 4 reaches sets requirement.
Wherein, the form of electric heater 3 is unrestricted, and can be set in regenerative apparatus 4 groove for fixation it is electric
Heater 3.Electric heater 3 preferably uses PTC electrically heated rods herein, and PTC electrically heated rods are arranged in regenerative apparatus 4
In metal groove, this kind of security effectiveness of the electric heater of form 3 is high and is easily installed.
In order to avoid liquid causes to damage into compressor 1 by the gas returning port of compressor 1 to it, connect in return line
Gas-liquid separator 2 is connected to, so as to carry out gas-liquid separation to the refrigerant entered into compressor 1.Additionally, as can be known from Fig. 1, system
After cryogen enters into regenerative apparatus 4 from the second bypass pipe, it may return to return line and carries out gas-liquid separation, so as to not increase
On the basis of the quantity of gas-liquid separator 2, it is ensured that liquid is free of in the refrigerant entered in compressor 1.
Additionally, more conventional reversing arrangement is the four-way valve 5 shown in Fig. 1.Certainly, the premise of commutation function is being met
Under, it would however also be possible to employ disclosed other structures substitute the four-way valve 5 in accompanying drawing 1 in the prior art.Additionally, as can be known from Fig. 1, if
The throttling arrangement 6 put indoors between heat exchanger 10 and outdoor heat exchanger 9 is preferably still not restricted to using electric expansion valve
Form.
The air conditioning method of the air handling system according to the present embodiment one, comprises the following steps：
Obtain the operational mode of air handling system：
If air handling system is in refrigeration mode：
First bypass pipe and second bypass pipe is controlled to disconnect so that refrigerant is successively by outdoor heat exchanger 9
With indoor heat exchanger 10, and compressor 1 is not flowed directly back into by the regenerative apparatus 4, now refrigeration mode and general empty
The refrigeration mode of gas refrigeration system is identical.
If air handling system is in heating mode：
First bypass pipe is controlled to disconnect so that refrigerant successively flows by indoor heat exchanger 10 and outdoor heat exchanger 9
Return to reversing arrangement；Also, the second bypass pipe of control is connected, and return line is connected or disconnected so that at least part of refrigerant
It is flow back into compressor 1 after being heated into regenerative apparatus 4；Wherein, chosen whether to connect return line according to heating needs, when
Then there was only some refrigerant during return line connection carries out heat temperature raising into regenerative apparatus 4, and otherwise all refrigerants all enter
Regenerative apparatus 4 is returned in compressor 1 after heating up.
Wherein, when return line and the second bypass line are turned on, by experimental results demonstrate this kind of situation is relatively only
For the situation that second bypass line is connected, can cause that air handling system has more preferable heating efficiency.
If air handling system is in defrost pattern：
The first bypass pipe is controlled to connect so that refrigerant flows from after the outflow of outdoor heat exchanger 9 without indoor heat exchanger 10
Return to reversing arrangement.Further, the second bypass pipe of control is connected so that refrigerant is by after the evaporation endothermic of regenerative apparatus 4
It flow back into compressor 1, to improve the heating efficiency during defrost.
Obviously, during the air handling system according to the present embodiment one carries out air adjustment, especially defrost process,
It does not result in room thermal losses, can keep room thermal comfort at low ambient temperatures, improves system in low temperature environment
It is lower to run the harsh conditions for heating, fundamentally solve the problems, such as that defrost process causes indoor user to be experienced not good.
When the second bypass pipe is connected is provided with the electric heater 3 for supplementary heating in the regenerative apparatus 4, above-mentioned sky
Gas adjusting method also includes：
After air handling system operation setting time, in judging the temperature and regenerative apparatus 4 in regenerative apparatus 4
Relation between design temperature：
If the temperature in regenerative apparatus 4 is less than design temperature, regenerative apparatus 4 is heated using electric heater 3；
During electric heater 3 is heated to regenerative apparatus 4, once the temperature in regenerative apparatus 4 reaches design temperature,
Then disconnect electric heater 3.
Embodiment two
Fig. 2 is referred to, and the difference of embodiment one is, in the present embodiment two, the gas outlet of the compressor 1 and institute
State the outlet pipe parallel connection between reversing arrangement and be provided with the 3rd bypass pipe, the 3rd bypass pipe connect the regenerative apparatus 4 with
Regenerative apparatus 4 exchanges heat, and the 3rd bypass pipe selects a connection with the outlet pipe.Wherein, it is provided with benefit in regenerative apparatus 4
The electric heater 3 of heating is filled, to ensure that the temperature in regenerative apparatus 4 reaches sets requirement.
In Fig. 2, the 3rd bypass pipe is accessed in the loop by the second triple valve 12.Certainly, except using the second threeway
Valve 12 realizes " the 3rd bypass pipe selects a connection with the outlet pipe ", it is also an option that in the 3rd bypass pipe and escaping pipe
The switch valve for control piper break-make is respectively provided with road.
On this basis, the operational mode according to air handling system controls the break-make of the 3rd bypass pipe.Work as air adjustment
When system is in heating mode, the refrigerant of outflow is entered into indoor set after first passing through regenerative apparatus 4.When air adjustment system
When system is in defrost pattern, the 3rd bypass pipe is connected based on same purpose.When air handling system is in refrigeration mode, this
When disconnect the 3rd bypass pipe.
Wherein, when air handling system be in heat or defrost pattern under when, the 3rd bypass pipe connect, can be lifted
The delivery temperature of compressor 1, it is ensured that the stability of defrost process, accelerates the defrost speed of outdoor unit, improves under low-temperature heating
Thermal comfort for room.
It is noted that when three bypass pipes are connected, in addition to it can lift delivery temperature, at air handling system
In under heating mode, and air handling system load it is relatively low when, above-mentioned regenerative apparatus 4 can also flow the gas outlet of compressor 1
Energy in the high-temperature high-pressure refrigerant for going out is stored, and further avoids the waste of energy.
Also, when the 3rd bypass pipe is connected, the temperature inside temperature and regenerative apparatus 4 according to environment judges whether out
Open electric heater 3：
First determine whether the relation between environment temperature and critical-temperature：
If environment temperature is less than critical-temperature, control electric heater 3 keeps it turned on；
If environment temperature is not less than critical-temperature, after air handling system operation setting time, accumulation of heat is judged
The relation between the design temperature in temperature and regenerative apparatus 4 in device 4：
If the temperature in regenerative apparatus 4 is less than design temperature, regenerative apparatus 4 is heated using electric heater 3；
During electric heater 3 is heated to regenerative apparatus 4, once the temperature in regenerative apparatus 4 reaches design temperature,
Then disconnect electric heater 3.
On the basis of the above, the application also provides the air adjustment system in a kind of air-conditioner, including above-mentioned any embodiment
System.
Embodiment of above is merely to illustrate the utility model, rather than to limitation of the present utility model.Although with reference to implementation
Example has been described in detail to the utility model, it will be understood by those within the art that, to technology of the present utility model
Scheme carries out various combinations, modification or equivalent, without departure from the spirit and scope of technical solutions of the utility model, all should
Cover in the middle of right of the present utility model.
Claims (8)
1. a kind of air handling system, including：Compressor, indoor heat exchanger and the outdoor heat exchange to form loop are connected by pipeline
Device, wherein, the compressor is connected by reversing arrangement with the indoor heat exchanger and outdoor heat exchanger, the indoor heat exchanger
Throttling arrangement is connected with and the outdoor heat exchanger between, it is characterised in that the first bypass pipe of the indoor heat exchanger parallel connection, and
The indoor heat exchanger selects a connection with first bypass pipe；Returning between the compressor return air mouthful and the reversing arrangement
Air pipe parallel connection is provided with the second bypass pipe, and the second bypass pipe connection regenerative apparatus exchanges heat with regenerative apparatus, and described second
Bypass pipe is connected with the return line at least one.
2. air handling system according to claim 1, it is characterised in that the regenerative apparatus is arranged on the compressor
On shell, for absorbing and the used heat of the compressor case is stored.
3. air handling system according to claim 2, it is characterised in that the regenerative apparatus is provided with for supplementary heating
Electric heater.
4. air handling system according to claim 1, it is characterised in that first bypass pipe passes through the first triple valve
The loop is accessed, wherein, the indoor heat exchanger and first bypass pipe connect two of first triple valve respectively
Outlet, the throttling arrangement connects the entrance of first triple valve.
5. air handling system according to claim 1, it is characterised in that the return line and second bypass pipe
On be provided with control pipeline section break-make switch valve.
6. air handling system according to claim 3, it is characterised in that the gas outlet of the compressor and the commutation
Outlet pipe parallel connection between device is provided with the 3rd bypass pipe, and the 3rd bypass pipe connects the regenerative apparatus and regenerative apparatus
Heat exchange, and the 3rd bypass pipe selects a connection with the outlet pipe.
7. air handling system according to claim 6, it is characterised in that the 3rd bypass pipe passes through the second triple valve
In accessing the loop.
8. air handling system according to claim 1, it is characterised in that be connected with gas-liquid separation in the return line
Device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621158667.5U CN206281264U (en) | 2016-10-31 | 2016-10-31 | A kind of air handling system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621158667.5U CN206281264U (en) | 2016-10-31 | 2016-10-31 | A kind of air handling system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206281264U true CN206281264U (en) | 2017-06-27 |
Family
ID=59085448
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621158667.5U Active CN206281264U (en) | 2016-10-31 | 2016-10-31 | A kind of air handling system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206281264U (en) |
-
2016
- 2016-10-31 CN CN201621158667.5U patent/CN206281264U/en active Active
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