CN207515266U - Step-less adjustment refrigerating capacity and the single-stage refrigerating system for going moisture - Google Patents
Step-less adjustment refrigerating capacity and the single-stage refrigerating system for going moisture Download PDFInfo
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- CN207515266U CN207515266U CN201721537420.9U CN201721537420U CN207515266U CN 207515266 U CN207515266 U CN 207515266U CN 201721537420 U CN201721537420 U CN 201721537420U CN 207515266 U CN207515266 U CN 207515266U
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Abstract
The utility model is related to a kind of step-less adjustment refrigerating capacitys and the single-stage refrigerating system for going moisture, belong to control technology field.The step-less adjustment refrigerating capacity of the utility model and the single-stage refrigerating system for going moisture, its refrigerating circuit and circuit of drying can be accurately controlled refrigerating capacity and go moisture respectively, so as to which confrontation of the prior art not used to adjust, reduce heating system and the frequency of use of humidification system, reduce the operating cost that refrigeration is dried；Pass through the step-less adjustment of refrigerating capacity simultaneously, refrigerating capacity is only provided as needed, evaporator mean temperature is slightly less than control temperature in case, reduce the possibility of evaporimeter frosting, there is no frosting problem in 0 DEG C or more of temperature, guarantee test case can be steady in a long-term temperature operation, improve chamber reliability.And single-stage refrigerating system of the step-less adjustment refrigerating capacity of the utility model with going moisture, system structure is simple, easy to maintain, and method application is easy, and application range is also very extensive.
Description
Technical field
The utility model is related to temperature and humidity control technical field, the control skill more particularly to freezed and dried for chamber
Art field, in particular to a kind of step-less adjustment refrigerating capacity and the single-stage refrigerating system for going moisture.
Background technology
Humiture test box requirement carries out humiture in case continuous and accurate adjusting, and air conditioner industry generally use is led to
The adjusting method of overcompression machine stopping type cannot meet the control needs of humiture test box.It needs to realize additionally, due to chamber
Temperature to adjust span big (- 40 DEG C to+150 DEG C), need to realize extreme low temperature and high temperature, so frequency-changeable compressor is very much
Operating mode can not use.
At present, the refrigeration system of humiture test box mainstream be using simple refrigeration system, can only constant refrigerating capacity or
Person is by switching the sectional-regulated refrigerating capacity of the solenoid valve of different flow and going moisture.Temperature humidity control in chamber uses
Conditioning mode is balanced, i.e. temperature control carries out confrontation adjusting using variable heating amount with constant refrigerating capacity, reaches temperature
Degree balance；Humid control in chamber carries out confrontation adjusting using variable humidification amount with constant refrigerating capacity, reaches humidity
Balance.Since refrigeration system works always, evaporator mean temperature is easily even normal in low temperature well below temperature is controlled in case
Frosting in warm range influences refrigeration effect and chamber performance steady in a long-term.
Therefore, refrigerating capacity can be accurately controlled and go moisture by how providing one kind, and confrontation is not used to adjust, and reduce heating
The frequency of use of system and humidification system reduces the operating cost that refrigeration is dried, and then improves the refrigeration system of chamber reliability
System and method become this field urgent problem to be solved.
Utility model content
The purpose of the utility model is to overcome it is above-mentioned in the prior art the shortcomings that, provide a kind of step-less adjustment refrigerating capacity with
Remove the single-stage refrigerating system of moisture.The system can be accurately controlled refrigerating capacity and go moisture, and confrontation is not used to adjust, and reduce and add
The frequency of use of hot systems and humidification system, reduces the operating cost dried of refrigeration, while by the step-less adjustment of refrigerating capacity, only
Refrigerating capacity is provided as needed, and evaporator mean temperature is slightly less than control temperature in case, reduces the possibility of evaporimeter frosting
Property, there is no frosting problem in 0 DEG C or more of temperature, the temperature operation that guarantee test case can be steady in a long-term, improving chamber can
By property.
In order to realize above-mentioned purpose, the step-less adjustment refrigerating capacity of the utility model is with going the single-stage refrigerating system of moisture to have
There is following composition：
The step-less adjustment refrigerating capacity is with going the single-stage refrigerating system of moisture to include：Control subsystem, compressor, refrigerating circuit
With circuit of drying.
Wherein, control subsystem includes ambient temperature and humidity harvester, to according to ambient temperature and humidity and target humiture
It calculates refrigerating capacity and goes moisture；Compressor provides system circulation power by adiabatic compression process；Refrigerating circuit includes passing through system
Cold solenoid valve connects the refrigerating evaporator of the compressor, and the control subsystem is according to the controlling capacity of refrigeration refrigeration
Solenoid valve realizes the step-less adjustment of refrigerating capacity；Circuit of drying includes connecting the steaming of drying of the compressor by the solenoid valve that dries
Device is sent out, the control subsystem goes moisture to control the solenoid valve that dries, realizes the step-less adjustment for going moisture according to described.
The step-less adjustment refrigerating capacity is with going in the single-stage refrigerating system of moisture, and the control subsystem is according to the system
Cold controls the refrigeration solenoid valve to be specially：The control subsystem is calculated and is controlled according to refrigerating capacity and temperature controlling cycle
Opening time of the refrigeration solenoid valve in unit period.
For the step-less adjustment refrigerating capacity with going in the single-stage refrigerating system of moisture, the refrigerating circuit, which further includes, is set to institute
State refrigeration solenoid valve and the refrigerating evaporator between refrigeration expansion valve, the refrigeration expansion valve to control the refrigeration return
The evaporating temperature of the flow on road and the refrigerating evaporator.
The step-less adjustment refrigerating capacity with going in the single-stage refrigerating system of moisture, according to described go by the control subsystem
Moisture controls the solenoid valve that dries to be specially：The control subsystem is according to going moisture and humid control computation of Period and control
Described dries opening time of the solenoid valve in unit period.
For the step-less adjustment refrigerating capacity with going in the single-stage refrigerating system of moisture, the circuit of drying, which further includes, is set to institute
The head cover valve that dries to dry between solenoid valve and the evaporator that dries is stated, this dries head cover valve to control the circuit of drying
Flow.
The step-less adjustment refrigerating capacity is with going the single-stage refrigerating system of moisture to further include hot gas bypass circuit, including described in connection
Compressor hot gas bypass solenoid valve, it is described when the refrigeration solenoid valve and the solenoid valve that dries are turned off
Control subsystem controls the hot gas bypass solenoid valve to open, and ensures the compressor suction and discharge using the hot gas bypass circuit.
The step-less adjustment refrigerating capacity is with going the single-stage refrigerating system of moisture to further include Liquid injection cooling circuit, including by described
The hot gas bypass circuit connection compressor Liquid injection cooling solenoid valve, when the hot gas bypass solenoid valve is opened,
The control subsystem controls the Liquid injection cooling solenoid valve to open, and ensures the row of the compressor using the Liquid injection cooling circuit
Temperature degree.
With going in the single-stage refrigerating system of moisture, the control subsystem further includes to be set to the step-less adjustment refrigerating capacity
The inspiratory pressure sensor of the compressor, when the pressure of inspiration(Pi) of the compressor is more than preset value, control is closed described
Refrigerating circuit, dry circuit and hot gas bypass circuit.
It employs the step-less adjustment refrigerating capacity of the utility model and removes the single-stage refrigerating system of moisture, refrigerating circuit and go
Wet circuit can be accurately controlled refrigerating capacity and go moisture respectively, so as to which confrontation of the prior art not used to adjust, reduce
The frequency of use of heating system and humidification system reduces the operating cost that refrigeration is dried；Pass through the stepless-adjustment of refrigerating capacity simultaneously
Section, only provides refrigerating capacity as needed, and evaporator mean temperature is slightly less than control temperature in case, reduces evaporimeter frosting
Possibility does not have frosting problem in 0 DEG C or more of temperature, and the temperature operation that guarantee test case can be steady in a long-term improves experiment
Case reliability.And single-stage refrigerating system and method for the step-less adjustment refrigerating capacity of the utility model with going moisture, system structure
Simply, easy to maintain, method application is easy, and application range is also very extensive.
Description of the drawings
Fig. 1 is the step-less adjustment refrigerating capacity of the utility model and removes the structure diagram of the single-stage refrigerating system of moisture.
Fig. 2 is the step-less adjustment refrigerating capacity of the utility model and removes the step flow chart of the single-stage refrigeration method of moisture.
Specific embodiment
In order to be more clearly understood that the technology contents of the utility model, spy lifts following embodiment and is described in detail.
Refering to Figure 1, the knot of single-stage refrigerating system of the step-less adjustment refrigerating capacity for the utility model with going moisture
Structure schematic diagram.
In one embodiment, the step-less adjustment refrigerating capacity is with going the single-stage refrigerating system of moisture to include：Control subsystem
System, compressor 1, refrigerating circuit and circuit of drying.
The control subsystem includes ambient temperature and humidity harvester, to according to ambient temperature and humidity and target humiture
It calculates refrigerating capacity and goes moisture；Compressor 1 provides system circulation power by adiabatic compression process；Refrigerating circuit includes passing through
Refrigeration solenoid valve 20 connects the refrigerating evaporator 23 of the compressor 1, and the control subsystem is according to the refrigerating capacity control
The refrigeration solenoid valve 20 is made, realizes the step-less adjustment of refrigerating capacity；Circuit dry including connecting the pressure by the solenoid valve 24 that dries
The evaporator 27 that dries of contracting machine 1, the control subsystem go moisture to control the solenoid valve 24 that dries according to described, and realization is gone
The step-less adjustment of moisture.
The step-less adjustment refrigerating capacity realized using the system described in the above embodiment and the single-stage refrigeration method of moisture is gone,
As shown in Fig. 2, include the following steps：
(A) control subsystem calculates refrigerating capacity according to ambient temperature and humidity and target humiture and goes moisture；
(B) according to the refrigerating capacity, the system being connected in refrigerating circuit between compressor 1 and refrigerating evaporator 23 is controlled
Cold solenoid valve 20 realizes the step-less adjustment of refrigerating capacity；
(C) according to the moisture of going, control, which is dried, to be connected to compressor 1 in circuit and is gone between the evaporator 27 that dries
Wet solenoid valve 24 realizes the step-less adjustment for going moisture.
In a preferred embodiment, the control subsystem is according to the controlling capacity of refrigeration refrigeration electromagnetism
Valve 20 is specially：The control subsystem calculates according to refrigerating capacity and temperature controlling cycle and controls the refrigeration solenoid valve
20 opening time in unit period.Meanwhile the refrigerating circuit further include be set to the refrigeration solenoid valve 20 with
Refrigeration expansion valve 21 between the refrigerating evaporator 23, the refrigeration expansion valve 21 to the flow that controls the refrigerating circuit and
The evaporating temperature of the refrigerating evaporator 23.
Utilize the step-less adjustment refrigerating capacity that the system described in the above embodiment is realized and the single-stage refrigeration method for going moisture
In, the step (B) is further comprising the steps of：
The control subsystem calculates according to refrigerating capacity and temperature controlling cycle and controls the refrigeration solenoid valve 20
Opening time in unit period；
The control subsystem control is connected between the refrigeration solenoid valve 20 and the refrigerating evaporator 23
Refrigeration expansion valve 21, to control the evaporating temperature of the flow of the refrigerating circuit and the refrigerating evaporator 23.
In a kind of further preferred embodiment, the control subsystem goes moisture that this is controlled to go according to described
Wet solenoid valve 24 is specially：The control subsystem drying according to going moisture and humid control computation of Period and control
Opening time of the solenoid valve 24 in unit period.Meanwhile the circuit of drying further includes and is set to the solenoid valve that dries
The head cover valve 25 that dries between 24 and the evaporator 27 that dries, this dries head cover valve 25 to the stream for controlling the circuit of drying
Amount.
The step-less adjustment refrigerating capacity realized using the system described in the above embodiment and the single-stage refrigeration method of moisture is gone,
In it is characterized in that, the step (C) is further comprising the steps of：
Dry solenoid valve 24 of the control subsystem according to going moisture and humid control computation of Period and control
Opening time in unit period；
The control subsystem control is connected to described dry between solenoid valve 24 and the evaporator 27 that dries
The head cover valve 25 that dries, to control the flow in the circuit of drying.
In a kind of embodiment still more preferably, the step-less adjustment refrigerating capacity and the single-stage refrigeration for going moisture
System further includes hot gas bypass circuit and Liquid injection cooling circuit.
The hot gas bypass circuit includes the hot gas bypass solenoid valve 13 of the connection compressor 1, when the system
When cold solenoid valve 20 and the solenoid valve 24 that dries are turned off, the control subsystem controls the hot gas bypass solenoid valve 13
It opens, ensures 1 suction and discharge of compressor using the hot gas bypass circuit.
The Liquid injection cooling circuit includes cold by the hydrojet of the hot gas bypass circuit connection compressor 1
But solenoid valve 18, when the hot gas bypass solenoid valve 13 is opened, the control subsystem controls the Liquid injection cooling electromagnetism
Valve 18 is opened, and ensures the delivery temperature of the compressor 1 using the Liquid injection cooling circuit.
Utilize the step-less adjustment refrigerating capacity that the system described in the above embodiment is realized and the single-stage refrigeration method for going moisture
It is further comprising the steps of：
(D) when the refrigeration solenoid valve 20 and the solenoid valve 24 that dries are turned off, the control subsystem
The hot gas bypass solenoid valve 13 that the compressor 1 is connected in control hot gas bypass circuit is opened, and is returned using the hot-gas bypass
Road ensures 1 suction and discharge of compressor.
(E) when the hot gas bypass solenoid valve 13 is opened, in control subsystem control Liquid injection cooling circuit
It is opened by the Liquid injection cooling solenoid valve 18 of the hot gas bypass circuit connection compressor 1, utilizes the Liquid injection cooling
Circuit ensures the delivery temperature of the compressor 1.
In a kind of preferred embodiment, the control subsystem, which further includes, is set to the compressor 1
Inspiratory pressure sensor 5, when the pressure of inspiration(Pi) of the compressor 1 is more than preset value, control closes the refrigerating circuit, dries
Circuit and hot gas bypass circuit.
Utilize the step-less adjustment refrigerating capacity that the system described in the above embodiment is realized and the single-stage refrigeration method for going moisture
It is further comprising the steps of：
(F) according to the numerical value obtained from the inspiratory pressure sensor 5 for being set to the compressor 1, when the compressor 1
When pressure of inspiration(Pi) is more than preset value, by the control subsystem control closing refrigerating circuit, dry circuit and hot gas
Logical circuit.
In practical applications, the step-less adjustment refrigerating capacity of the utility model is with going the single-stage refrigeration method of moisture that can be divided into
For the control method of following component part：
1. refrigerating circuit controls：The refrigerating capacity calculated by control system PID is multiplied by temperature controlling cycle (such as：Acquiescence control
Period processed is 10 seconds, can pass through set-up of control system controlling cycle), determine that refrigeration solenoid valve 20 is opened in each control cycle
Open the time.Such as：If refrigeration output is 15%, opening time of the refrigeration solenoid valve 20 in a controlling cycle is
1.5 seconds, the shut-in time was 8.5 seconds.Refrigeration expansion valve 21 is adjusted according to required limiting temperature, is maintained at minimum temperature, and
And during forced refrigeration output 100%, the outlet of refrigerating evaporator 23 is with+5 DEG C of the degree of superheat.
It can also include the refrigeration being connected between refrigeration expansion valve 21 and refrigerating evaporator 23 distribution in the refrigerating circuit
Device 22, the refrigeration distributor 22 is evenly distributing the flow in 23 each circuit of refrigerating evaporator.
2. circuit control of drying：Moisture is gone by what control system PID was calculated, being multiplied by the humid control period (is defaulted as 10
Second, set-up of control system controlling cycle can be passed through), decision is dried the opening time in each control cycle of solenoid valve 24.Example
Such as：If output of drying is 15%, opening time of the solenoid valve 20 in a controlling cycle of drying is 1.5 seconds, is closed
Time is 8.5 seconds.It dries the adjusting of head cover valve 25, ensures that humiture is+23 DEG C in control cabinet, during 50%RH, pressure is dried defeated
Go out 100%, when refrigeration solenoid valve 21 is closed, the instruction of inspiratory pressure sensor 5 is more than 0.3bar, and the evaporator 27 that dries exports
More than 0 DEG C, reach preferable effect of drying in various operating modes, and will not frosting to reach the evaporator 27 that dries.
It can also include being connected to the distribution of drying dried between head cover valve 25 and the evaporator 27 that dries in the circuit of drying
Device 26, this dries distributor 26 to the flow for evenly distributing 27 each circuit of evaporator of drying.
3. hot gas bypass circuit controls：When refrigeration solenoid valve 20 and the solenoid valve 24 that dries all are closed, hot-gas bypass electromagnetism
Valve 13 is opened, and ensures that compressor 1 can normal suction and discharge.Hot-gas bypass head cover valve 12 will be adjusted to only hot gas bypass solenoid valve 13 and beat
When opening, inspiratory pressure sensor 5 indicates pressure in the range of 0.3bar to 1bar.
4. Liquid injection cooling solenoid valve control：When compressor 1 is opened, Liquid injection cooling solenoid valve 18 is opened, and adjustment hydrojet is cold
But expansion valve 19, when ensureing that only hot gas bypass solenoid valve 13 is opened, compressor exhaust temperature is not higher than+105 DEG C.In addition, for
Limiting temperature is -40 DEG C in chamber, and it is R404a single-stage refrigerating systems that minimum evaporating temperature, which needs -45 DEG C of refrigerant, hydrojet
Cooling expansion valve 19 uses R134a expansion valves (operating temperature range is -40 DEG C to+10 DEG C), close under extreme temperature conditions,
The meeting mechanical closing of Liquid injection cooling expansion valve 19, avoids pressure of inspiration(Pi) being caused to increase due to Liquid injection cooling circuit, ensures refrigerating circuit
Reach very low pressure of inspiration(Pi) and evaporating temperature.
5. system protection：When inspiratory pressure sensor 5 indicates that pressure is higher than 3.5bar, refrigeration expansion valve 21, dry electricity
Magnet valve 24,13 equal positive closing of hot gas bypass solenoid valve, avoid 1 overload operation of compressor, when inspiratory pressure sensor 5 indicates
Pressure is restored to automatically control after being less than 3bar again.After back pressure transducer 11 indicates that pressure is higher than 19bar, limitation is maximum
Freeze and export-restriction of drying is 50%, after back pressure transducer 11 indicates that pressure is less than 18bar, restore maximum refrigeration and go
Wet export-restriction is 100%, and system operation is kept under the conditions of can not being well in condensation situations, is unlikely to triggering height and presses off
7 are closed, refrigeration system alarm is caused to be shut down.
As shown in Figure 1, the step-less adjustment refrigerating capacity of the utility model is with going the single-stage refrigerating system of moisture to further include：
Oil heater 2, the oil heater 2 prevent 1 hydrops of compressor to be powered when compressor 1 is not run；
Cylinder head wind turbine 3, the cylinder head wind turbine 3 is cooling down 1 cylinder head of compressor；
Oil pressure control 4, the oil pressure control 4 to detect compressor 1 whether lack lubricating oil；
Air-breathing shock absorbing pipe 6, the air-breathing shock absorbing pipe 6 is being isolated vibration of the compressor 1 to pipeline；
High-voltage switch gear 7, the alarm of the high-voltage switch gear 7 to pressure at expulsion when excessively high, and halt system；
Pressure gauge 8, the pressure gauge 8 is indicating system discharge pressure；
Shock absorbing pipe 9 is vented, the exhaust shock absorbing pipe 9 is being isolated vibration of the compressor 1 to pipeline；
Oil eliminator 10, the oil eliminator 10 return to compressor 1 to detach the oil that exhaust is taken out of；
Water-cooled condenser 14, the water-cooled condenser 14 complete condensation process to provide refrigeration system source of heat release；
Safety valve 15, the safety valve 15 open release to system high pressure hypertonia；
Device for drying and filtering 16, the device for drying and filtering 16 is to the impurity and moisture in filtration high pressure liquid；
Whether liquid-sighting glass 17, the liquid-sighting glass 17 are sufficient for observing liquid；
Gas-liquid separator 28, the gas-liquid separator 28 return to compressor to the liquid in piece-rate system air-breathing, only gas
1, prevent 1 liquid hazards of compressor.
It the step-less adjustment refrigerating capacity and goes the single-stage refrigerating system of moisture that can be accurately controlled refrigerating capacity and to go moisture, greatly
Amplitude reduces the operating cost of chamber；Due to being adjusted without confrontation, heating system, humidification system etc. are also drastically reduced
The frequency of use of component improves the reliability of chamber；By control refrigeration solenoid valve, the empty accounting that the solenoid valve that dries is opened,
Step-less adjustment refrigerating capacity and go moisture；And by being detected to system pressure, using means such as hot-gas bypass, Liquid injection coolings, protect
It demonstrate,proves compressor and whole system is stable.Refrigerating capacity only need to be provided as needed, and evaporator mean temperature is slightly less than in case
Temperature is controlled, reduces the possibility of evaporimeter frosting, does not have frosting problem substantially in 0 DEG C or more of temperature, chamber can be with
Temperature operation steady in a long-term.
It employs the step-less adjustment refrigerating capacity of the utility model and removes the single-stage refrigerating system of moisture, refrigerating circuit and go
Wet circuit can be accurately controlled refrigerating capacity and go moisture respectively, so as to which confrontation of the prior art not used to adjust, reduce
The frequency of use of heating system and humidification system reduces the operating cost that refrigeration is dried；Pass through the stepless-adjustment of refrigerating capacity simultaneously
Section, only provides refrigerating capacity as needed, and evaporator mean temperature is slightly less than control temperature in case, reduces evaporimeter frosting
Possibility does not have frosting problem in 0 DEG C or more of temperature, and the temperature operation that guarantee test case can be steady in a long-term improves experiment
Case reliability.And single-stage refrigerating system and method for the step-less adjustment refrigerating capacity of the utility model with going moisture, system structure
Simply, easy to maintain, method application is easy, and application range is also very extensive.
In this description, the utility model is described with reference to its specific embodiment.It but it is clear that still can be with
The spirit and scope that various modification can be adapted and converts without departing from the utility model.Therefore, the description and the appended drawings should be considered as
It is illustrative and not restrictive.
Claims (8)
1. a kind of step-less adjustment refrigerating capacity and the single-stage refrigerating system for going moisture, which is characterized in that the system includes：
Control subsystem, including ambient temperature and humidity harvester, to calculate refrigeration according to ambient temperature and humidity and target humiture
Measure and go moisture；
Compressor by adiabatic compression process, provides system circulation power；
Refrigerating circuit, the refrigerating evaporator including connecting the compressor by the solenoid valve that freezes, the control subsystem root
According to the controlling capacity of refrigeration refrigeration solenoid valve, the step-less adjustment of refrigerating capacity is realized；
It dries circuit, the evaporator that dries including connecting the compressor by the solenoid valve that dries, the control subsystem root
Moisture is gone to control the solenoid valve that dries according to described, realize the step-less adjustment for going moisture.
2. step-less adjustment refrigerating capacity according to claim 1 and the single-stage refrigerating system for going moisture, which is characterized in that described
Control subsystem according to the controlling capacity of refrigeration, the refrigeration solenoid valve is specially：
The control subsystem calculates according to refrigerating capacity and temperature controlling cycle and controls the refrigeration solenoid valve in unit
Opening time in period.
3. step-less adjustment refrigerating capacity according to claim 2 and the single-stage refrigerating system for going moisture, which is characterized in that described
Refrigerating circuit further include the refrigeration expansion valve being set between the refrigeration solenoid valve and the refrigerating evaporator, the system
Cold expansion valve is controlling the evaporating temperature of the flow of the refrigerating circuit and the refrigerating evaporator.
4. step-less adjustment refrigerating capacity according to claim 1 and the single-stage refrigerating system for going moisture, which is characterized in that described
Control subsystem moisture is gone to control the solenoid valve that dries to be specially according to described：
Dry solenoid valve of the control subsystem according to going moisture and humid control computation of Period and control is in unit
Opening time in period.
5. step-less adjustment refrigerating capacity according to claim 4 and the single-stage refrigerating system for going moisture, which is characterized in that described
Circuit of drying further include and be set to the head cover valve that dries to dry between solenoid valve and the evaporator that dries, this dries
Head cover valve is controlling the flow in the circuit of drying.
6. step-less adjustment refrigerating capacity according to any one of claim 1 to 5 and the single-stage refrigerating system for going moisture, special
Sign is, further includes hot gas bypass circuit, the hot gas bypass solenoid valve including connecting the compressor, when the refrigeration electricity
When magnet valve and the solenoid valve that dries are turned off, the control subsystem controls the hot gas bypass solenoid valve to open, and utilizes
The hot gas bypass circuit ensures the compressor suction and discharge.
7. step-less adjustment refrigerating capacity according to claim 6 and the single-stage refrigerating system for going moisture, which is characterized in that also wrap
Liquid injection cooling circuit is included, the Liquid injection cooling solenoid valve including connecting the compressor by the hot gas bypass circuit, when
When the hot gas bypass solenoid valve is opened, the control subsystem controls the Liquid injection cooling solenoid valve to open, and utilizes the spray
Liquid cooling circuit ensures the delivery temperature of the compressor.
8. step-less adjustment refrigerating capacity according to claim 6 and the single-stage refrigerating system for going moisture, which is characterized in that
The control subsystem further includes the inspiratory pressure sensor for being set to the compressor, when the air-breathing of the compressor
When pressure is more than preset value, the refrigerating circuit, dry circuit and hot gas bypass circuit are closed in control.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201721537420.9U CN207515266U (en) | 2017-11-17 | 2017-11-17 | Step-less adjustment refrigerating capacity and the single-stage refrigerating system for going moisture |
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| CN201721537420.9U CN207515266U (en) | 2017-11-17 | 2017-11-17 | Step-less adjustment refrigerating capacity and the single-stage refrigerating system for going moisture |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109798685A (en) * | 2017-11-17 | 2019-05-24 | 上海增达科技股份有限公司 | Step-less adjustment refrigerating capacity and the single-stage refrigerating system and method for going moisture |
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2017
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109798685A (en) * | 2017-11-17 | 2019-05-24 | 上海增达科技股份有限公司 | Step-less adjustment refrigerating capacity and the single-stage refrigerating system and method for going moisture |
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