CN206281236U - A kind of air-conditioning system for being applicable high-temperature refrigeration - Google Patents
A kind of air-conditioning system for being applicable high-temperature refrigeration Download PDFInfo
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- CN206281236U CN206281236U CN201621276148.9U CN201621276148U CN206281236U CN 206281236 U CN206281236 U CN 206281236U CN 201621276148 U CN201621276148 U CN 201621276148U CN 206281236 U CN206281236 U CN 206281236U
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Abstract
The utility model is related to air-conditioning technical field, disclose a kind of air-conditioning system for being applicable high-temperature refrigeration, it includes refrigerant loop, the refrigerant loop includes the compressor, condenser, throttling arrangement and at least two evaporators that are connected by pipeline, evaporator described at least two is arranged in parallel in the pipeline, by the pressure for adjusting the capacity of evaporator described in wherein at least one to reduce refrigerant loop.The utility model can ensure the reliability of system while air-conditioning system pressure is reduced.
Description
Technical field
The utility model is related to air-conditioning technical field, more particularly to a kind of air-conditioning system for being applicable high-temperature refrigeration.
Background technology
Current air-conditioning system, often occurs the excessive situation of system pressure in high-temperature refrigeration, in pertinent literature, typically
The pressure of system is reduced by unloading the coolant quantity of outdoor unit or the discharge capacity of unloading compressor.However, this mode can be made
It is unstable into system operation, less reliable.
Utility model content
(1) technical problem to be solved
The technical problems to be solved in the utility model be how reduce air-conditioning system pressure while ensure system can
By property.
(2) technical scheme
In order to solve the above-mentioned technical problem, the utility model provides a kind of air-conditioning system for being applicable high-temperature refrigeration, and it includes
Refrigerant loop, the refrigerant loop includes that the compressor connected by pipeline, condenser, throttling arrangement and at least two are steamed
Hair device, evaporator described at least two is arranged in parallel in the pipeline, by adjusting evaporator described in wherein at least one
Capacity is reducing the pressure of refrigerant loop.
Wherein, the evaporator is two, respectively the first evaporator and the second evaporator；First evaporator enters
Mouth pipeline is provided with the first control valve and/or the entrance pipe of second evaporator is provided with the second control valve.
Wherein, capacity of the capacity of first evaporator more than second evaporator.
Wherein, the compressor is double-cylinder variable-capacity compressor, and the double-cylinder variable-capacity compressor includes master cylinder and auxiliary cylinder.
Wherein, also including triple valve, the triple valve includes the first import, the second inlet and outlet；
First import is connected with the air entry of the master cylinder, and the outlet is connected with the air entry of the auxiliary cylinder, institute
The second import is stated to be connected with the exhaust outlet of the double-cylinder variable-capacity compressor；
When first import is connected with the air entry of the master cylinder, the air entry of the air entry of the master cylinder and auxiliary cylinder
Connected with return line, the double-cylinder variable-capacity compressor is twin-tub mode of operation；
When second import is connected with the exhaust outlet of the double-cylinder variable-capacity compressor, the air entry of the master cylinder with return
Air pipe is connected and not connected with the air entry of the auxiliary cylinder, and the double-cylinder variable-capacity compressor is single cylinder mode of operation.
Wherein, the compressor is connected with the condenser and evaporator respectively by reversal valve.
Wherein, the first control valve and the second control valve can be check valve, electric expansion valve or magnetic valve.
(3) beneficial effect
Compared with prior art, the utility model has advantages below：
A kind of air-conditioning system for being applicable high-temperature refrigeration that the utility model is provided, sets using in existing refrigerant loop
At least two evaporators being connected in parallel in pipeline are put, refrigeration is reduced by adjusting the capacity of evaporator described in wherein at least one
The pressure in agent loop, control mode is simple, and increased the reliability of air-conditioning system refrigerating operaton under worst hot case.
Brief description of the drawings
A kind of annexation schematic diagram of air-conditioning system for being applicable high-temperature refrigeration that Fig. 1 is provided for the utility model；
A kind of signal of air-conditioning compressor single cylinder work for being applicable high-temperature refrigeration that Fig. 2 is provided for the utility model
Figure；
Fig. 3 is not set the schematic diagram of reversal valve in Fig. 2；
Fig. 4 is not set the schematic diagram of reversal valve in Fig. 1；
Fig. 5 is a kind of flow chart of the Air-condition system control process embodiments 1 for being applicable high-temperature refrigeration of the utility model；
Fig. 6 is a kind of flow chart of the Air-condition system control process embodiments 2 for being applicable high-temperature refrigeration of the utility model；
Fig. 7 is a kind of flow chart of the Air-condition system control process embodiments 3 for being applicable high-temperature refrigeration of the utility model；
Fig. 8 is a kind of flow chart of the Air-condition system control process embodiments 4 for being applicable high-temperature refrigeration of the utility model；
In figure：1：Compressor；2：Four-way reversing valve；3：Pressure sensor；4：Condenser；41：Coil temperature sensor；5：
Throttling arrangement：61：First control valve；62：Second control valve；71：First evaporator；72：Second evaporator；8：Triple valve；81：
First import；82：Second import；83：Outlet；9：Return-air part；10：Exhaust gas temperature sensor.
Specific embodiment
With reference to the accompanying drawings and examples, specific embodiment of the present utility model is described in further detail.Below
Example is used to illustrate the utility model, but is not limited to 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 " etc. are only used for describing purpose, without being understood that
To indicate or implying relative importance.
, it is necessary to explanation, unless otherwise clearly defined and limited, term " is pacified in description of the present utility model
Dress ", " connected ", " connection " should be interpreted broadly, for example, it may be fixedly connected, or be detachably connected, or integratedly
Connection；Can mechanically connect, or electrically connect；Can be joined directly together, it is also possible to be indirectly connected to by intermediary,
Can be two connections of element internal.For the ordinary skill in the art, above-mentioned art can be understood with concrete condition
Concrete meaning of the language in the utility model.
Additionally, in description of the present utility model, unless otherwise indicated, " multiple ", " many ", " multigroup " are meant that two
Individual or two or more.
As Figure 1-4, the utility model provides a kind of air-conditioning system for being applicable high-temperature refrigeration, and it includes that refrigerant is returned
Road, the refrigerant loop includes the compressor 1, condenser 4, the evaporator of throttling arrangement 5 and at least two that are connected by pipeline,
Evaporator described at least two is arranged in parallel in the pipeline, by adjust the capacity of evaporator described in wherein at least one with
Reduce the pressure of refrigerant loop such that it is able to increase the reliability of air-conditioning system refrigerating operaton under worst hot case.
Wherein, the evaporator can for two, three, four or more, in embodiment of the present utility model, institute
State evaporator and be preferably two, respectively the first evaporator 71 and the second evaporator 72；The inlet tube of first evaporator 71
Road is provided with the first control valve 61 and/or the entrance pipe of second evaporator 72 is provided with the second control valve 62, for adjusting
The refrigerant flow of the corresponding evaporator that throttled, and then adjust the load of whole refrigerant loop.
In the utility model, the capacity of the capacity more than second evaporator 72 of first evaporator 71 is set.
Wherein, the compressor 1 is double-cylinder variable-capacity compressor, and the double-cylinder variable-capacity compressor includes master cylinder and auxiliary cylinder, institute
State and connected between master cylinder and auxiliary cylinder, as the case may be, compressor switches between single cylinder and the mode of operation of twin-tub.
Wherein, also including triple valve 8, the triple valve 8 includes the first import 81, the second import 82 and outlet 83, first
Import 81 is not simultaneously turned on the second import 82；
First import 81 is connected with the air entry of the master cylinder, the air entry phase for exporting 83 and the auxiliary cylinder
Even, second import 82 is connected with the exhaust outlet of the double-cylinder variable-capacity compressor；
When first import 81 is connected with the air entry of the master cylinder, the air-breathing of the air entry of the master cylinder and auxiliary cylinder
Mouth is connected with return line, and now, master cylinder works with auxiliary cylinder, and the double-cylinder variable-capacity compressor is twin-tub mode of operation；
When second import 82 is connected with the exhaust outlet of the double-cylinder variable-capacity compressor, the air entry of the master cylinder with
Return line is connected and not connected with the air entry of the auxiliary cylinder, and the part of refrigerant of exhaust outlet discharge can be returned by pipeline
Auxiliary cylinder air entry is returned to, with a part of pressure of discharge system, now, only master cylinder work, the double-cylinder variable-capacity compressor is single
Cylinder working pattern.
Wherein, the compressor 1 is connected with the condenser 4 and evaporator respectively by reversal valve such as four-way reversing valve 2
Connect, the refrigerant loop between the master cylinder air entry of the four-way reversing valve 2 and compressor 1 is provided with return-air part 9, for helping
Help the return-air of compressor 1.
Wherein, it is described first control valve 61 and second control valve 62 can be check valve, electric expansion valve or magnetic valve,
It can certainly be other kinds of valve.
A kind of control process of the air-conditioning system for being applicable high-temperature refrigeration of the utility model is specific by following four embodiments
Explanation.
Embodiment 1
When compressor operating single cylinder mode of operation, and when being provided only with the first control valve 61 or the second control valve 62, such as Fig. 5 institutes
Show, it can include step：
S11, air-conditioning system open refrigeration mode, and the first control control valve 62 of valve 61 or second is opened；
S12, operation Preset Time detect one of parameter for characterizing air-conditioning system operating pressure after such as 0-3 minutes
Value, such as whole electromechanics stream, system pressure, condenser coil temperature or delivery temperature etc., if parameter value≤(being less than or equal to) sets
Value, then air-conditioning system is run by current state and continues to detect the parameter value；
If S13, parameter value>(being more than) setting value, the first control control valve 62 of valve 61 or second
Turn down or close to reduce the load of system,
S14, the parameter value is persistently detected, when parameter value≤setting value, air-conditioning system is run and held by current state
The continuous detection parameter value.
Embodiment 2
When compressor operating single cylinder mode of operation, and when being provided with the first control valve 61 and the second control valve 62, such as Fig. 6 institutes
Show, it can include step：
S21, air-conditioning system open refrigeration mode, and the first control control valve 62 of valve 61 and second is opened, when operation is default
Between such as 0-3 minutes；
S22, the one of parameter value for characterizing air-conditioning system operating pressure of detection, such as it is whole electromechanics stream, system pressure, cold
Condenser coils temperature or delivery temperature etc., if parameter value≤setting value, air-conditioning system is run by current state and continues detection
The parameter value；
If S23, parameter value>Setting value, the second control valve 62 is turned down or closed and reduces the load of system, and performs step
Rapid S24；
S24, operation Preset Time after such as 0-3 minutes, parameter values for detection, if parameter value≤setting value, air-conditioning system
Run and continue to detect the parameter value by current state；
If S25, parameter value>Setting value, then perform S26；
S26, the second control valve 62 are opened, and the first control valve 61 is turned down or closed, further to reduce the load of system, fortune
After row Preset Time such as 0-3 minutes, the parameter value is persistently detected, when parameter value≤setting value, air-conditioning system is by current
State is run and continues to detect the parameter value.
Embodiment 3
When compressor operating twin-tub mode of operation, and when being provided only with the first control valve 61 or the second control valve 62, such as Fig. 7 institutes
Show, it can include step：
S31, air-conditioning system open refrigeration mode, and the first control control valve 62 of valve 61 or second is opened, compressor twin-tub fortune
OK；
S32, operation Preset Time detect one of parameter for characterizing air-conditioning system operating pressure after such as 0-3 minutes
Value, such as whole electromechanics stream, system pressure, condenser coil temperature or delivery temperature etc., if parameter value≤setting value, air-conditioning system
System is run by current state and continues to detect the parameter value；
If S33, parameter value>Setting value, the first control control valve 62 of valve 61 or second is turned down or closed and reduces system
Load；
S34, operation Preset Time persistently detect the parameter value after such as 0-3 minutes, if parameter value≤setting value,
Air-conditioning system is run by current state and continues to detect the parameter value；
If S35, the first control valve 61 or second control valve 62 are until close, parameter value>Setting value, then perform S36；
The auxiliary cylinder of S36, close compressor, and continue to detect the parameter value, when parameter value≤setting value, air-conditioning system is pressed
Current state is run and continues to detect the parameter value.
Embodiment 4
When compressor operating twin-tub mode of operation, and when being provided with the first control valve 61 and the second control valve 62, such as Fig. 8 institutes
Show, it can include step：
S41, air-conditioning system open refrigeration mode, and the first control control valve 62 of valve 61 and second is opened, the twin-tub of compressor 1
Operation；
S42, operation Preset Time detect one of parameter for characterizing air-conditioning system operating pressure after such as 0-3 minutes
Value, such as whole electromechanics stream, system pressure, condenser coil temperature or delivery temperature etc., if parameter value≤setting value, air-conditioning system
System is run by current state and continues to detect the parameter value；
If S43, parameter value>Setting value, the second control valve 62 is turned down or closed and reduces the load of system, and performs step
Rapid S44；
S44, operation Preset Time after such as 0-3 minutes, parameter values for detection, if parameter value≤setting value, by current shape
State is run and continues to detect the parameter value；
If S45, parameter value>Setting value, then perform S46；
S46, the second control valve 62 are opened, and the first control valve 61 is turned down or closed, further to reduce the load of system, fortune
After row Preset Time such as 0-3 minutes, inspection is run and continued to parameter values for detection, if parameter value≤setting value, by current state
The parameter value is surveyed, if parameter value>Setting value, then perform S47；
The auxiliary cylinder of S47, close compressor, and continue to detect the parameter value, when parameter value≤setting value, air-conditioning system is pressed
Current state is run and continues to detect the parameter value.By the pressure for unloading the portion capacity of evaporator to reduce air-conditioning system
Power and load, increased reliability and security of the air-conditioning system under worst hot case state.
Specifically, as shown in figure 1, whole electromechanical stream in circuitry by installing amperometric measurement (not shown),
System pressure is measured by installing pressure sensor 3, and condenser coil temperature outside the coil pipe of condenser 4 by installing coil pipe temperature
Degree sensor 41 is measured, and delivery temperature is measured by installing exhaust gas temperature sensor 10 in gas exhaust piping.
Wherein, the setting value sets in the controller according to different refrigerant species and environment temperature.
As can be seen from the above embodiments, the utility model reduces air-conditioning system by unloading the portion capacity of evaporator
The pressure and load of system, increased reliability and security of the air-conditioning system under worst hot case state.
Preferred embodiment of the present utility model is the foregoing is only, is not used to limit the utility model, it is all at this
Within the spirit and principle of utility model, any modification, equivalent substitution and improvements made etc. should be included in the utility model
Protection domain within.
Claims (7)
1. a kind of air-conditioning system for being applicable high-temperature refrigeration, it is characterised in that including refrigerant loop, the refrigerant loop includes
Compressor, condenser, throttling arrangement and at least two evaporators connected by pipeline, evaporator parallel connection described at least two are set
Put in the pipeline, by the pressure for adjusting the capacity of evaporator described in wherein at least one to reduce refrigerant loop.
2. the air-conditioning system for being applicable high-temperature refrigeration according to claim 1, it is characterised in that the evaporator is two,
Respectively the first evaporator and the second evaporator；The entrance pipe of first evaporator is provided with the first control valve and/or institute
The entrance pipe for stating the second evaporator is provided with the second control valve.
3. the air-conditioning system for being applicable high-temperature refrigeration according to claim 2, it is characterised in that the appearance of first evaporator
Capacity of the amount more than second evaporator.
4. the air-conditioning system for being applicable high-temperature refrigeration according to claim 3, it is characterised in that the compressor is that twin-tub becomes
Positive displacement compressor, the double-cylinder variable-capacity compressor includes master cylinder and auxiliary cylinder.
5. the air-conditioning system for being applicable high-temperature refrigeration according to claim 4, it is characterised in that described also including triple valve
Triple valve includes the first import, the second inlet and outlet；
First import is connected with the air entry of the master cylinder, and the outlet is connected with the air entry of the auxiliary cylinder, and described
Two imports are connected with the exhaust outlet of the double-cylinder variable-capacity compressor；
When first import is connected with the air entry of the master cylinder, the air entry of the air entry of the master cylinder and auxiliary cylinder with
Return line is connected, and the double-cylinder variable-capacity compressor is twin-tub mode of operation；
When second import is connected with the exhaust outlet of the double-cylinder variable-capacity compressor, the air entry and muffler of the master cylinder
Road connects and is not connected with the air entry of the auxiliary cylinder, and the double-cylinder variable-capacity compressor is single cylinder mode of operation.
6. the air-conditioning system for being applicable high-temperature refrigeration according to claim any one of 1-5, it is characterised in that the compressor
It is connected with the condenser and evaporator respectively by reversal valve.
7. the air-conditioning system for being applicable high-temperature refrigeration according to claim 2, it is characterised in that the first control valve and the
Two control valves are check valve, electric expansion valve or magnetic valve.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621276148.9U CN206281236U (en) | 2016-11-25 | 2016-11-25 | A kind of air-conditioning system for being applicable high-temperature refrigeration |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201621276148.9U CN206281236U (en) | 2016-11-25 | 2016-11-25 | A kind of air-conditioning system for being applicable high-temperature refrigeration |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106440443A (en) * | 2016-11-25 | 2017-02-22 | 广州华凌制冷设备有限公司 | Air conditioner system suitable for high-temperature refrigerating and control method |
| CN107152811A (en) * | 2017-06-30 | 2017-09-12 | 美的集团武汉制冷设备有限公司 | The control method of air-conditioning system and air-conditioning system |
| CN107289661A (en) * | 2017-06-30 | 2017-10-24 | 美的集团武汉制冷设备有限公司 | The control method of air-conditioning system and air-conditioning system |
| CN109595845A (en) * | 2017-09-29 | 2019-04-09 | 上海海立电器有限公司 | Fresh air conditioner system and control method |
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2016
- 2016-11-25 CN CN201621276148.9U patent/CN206281236U/en active Active
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106440443A (en) * | 2016-11-25 | 2017-02-22 | 广州华凌制冷设备有限公司 | Air conditioner system suitable for high-temperature refrigerating and control method |
| CN107152811A (en) * | 2017-06-30 | 2017-09-12 | 美的集团武汉制冷设备有限公司 | The control method of air-conditioning system and air-conditioning system |
| CN107289661A (en) * | 2017-06-30 | 2017-10-24 | 美的集团武汉制冷设备有限公司 | The control method of air-conditioning system and air-conditioning system |
| CN107289661B (en) * | 2017-06-30 | 2019-12-27 | 美的集团武汉制冷设备有限公司 | Air conditioning system and control method thereof |
| CN109595845A (en) * | 2017-09-29 | 2019-04-09 | 上海海立电器有限公司 | Fresh air conditioner system and control method |
| CN109595845B (en) * | 2017-09-29 | 2021-08-03 | 上海海立电器有限公司 | Fresh air conditioning system and control method |
| US11480369B2 (en) | 2017-09-29 | 2022-10-25 | Shanghai Highly Electrical Appliances Co., Ltd. | Fresh-air air conditioning system and control method |
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