CN208011962U - All weather refrigeration system - Google Patents
All weather refrigeration system Download PDFInfo
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- CN208011962U CN208011962U CN201820255150.0U CN201820255150U CN208011962U CN 208011962 U CN208011962 U CN 208011962U CN 201820255150 U CN201820255150 U CN 201820255150U CN 208011962 U CN208011962 U CN 208011962U
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- condenser
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- solenoid valve
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Abstract
The utility model embodiment discloses a kind of all weather refrigeration system, including the second condenser, check valve, solenoid valve, temperature sensor, condensing pressure sensor and air-conditioner controller, second condenser is arranged in parallel with the first condenser, the check valve is set to the exit of the second condenser, solenoid valve is set to the entrance of the second condenser, and air-conditioner controller controls the ON/OFF of solenoid valve.Distribution of the refrigerant in condenser after the utility model embodiment is shut down by using solenoid valve and the check valve control at the second condenser both ends; when unit being enable to restart after low temperature shutdown; high and low pressure safe operation can be established rapidly; it solves the problems, such as that previous cold-starting solution is of high cost, bulky, and then realizes the technique effect of all weather refrigeration；In addition, the utility model is opened and closed also according to condensing pressure control solenoid valve, solve under low temperature environment, the problem of condensation fan continuous start and stop, reduces system operation fluctuation.
Description
Technical field
The utility model is related to air-conditioning technical field more particularly to a kind of all weather refrigeration systems.
Background technology
One important feature of air conditioner in machine room seeks to seek year round cooling and whole day runs without interruption for 24 hours, due to China
It is vast in territory, the coldest temperature of northern area is at -45 DEG C or so, and the highest temperature in southern area is at 45 DEG C or so.If it is
Common air conditioner in machine room is applied to low temperature（- 15 DEG C or less）Occasion will appear lasting low pressure when restarting after a shutdown,
Air-conditioning is caused not start normally, such number of starts is more to cause compressor to break down because of oil starvation；And it is small
Type data center not only needs to face cryogenic refrigeration occasion, and mostly by place and volumetric constraint, such as unification server cabinet
And small-sized micromodule data center, the space of device cryogenic assembly can not be provided.
Traditional precision air conditioner is after compressor emergency shutdown, and when external environment temperature is relatively low, system refrigerant can be gone out due to the internal-external machine temperature difference
Show refrigerant from interior machine（At high temperature）It migrates to outer machine（At low temperature）, after downtime long enough, the major part of system refrigerant is all
It hoards in outer machine condenser coil, on startup, can not be set up in the high and low pressure short time, at that time the suction side of compressor
State in evacuation, high-pressure is also very low, and exhaust side gas condenses rapidly within the condenser, can not push refrigerant into
Row cycle, system high-low pressure can not be established.In addition, external environment low temperature tradition precision air conditioner is critical as low as some in outer environment temperature
Value（Critical value is different according to different air precision air conditioning systems）, condensation fan startup, condensing pressure declines, after reaching setting value,
Condensation fan stops, and condensing pressure is begun to ramp up, and when being raised to setting value, condensation fan is opened again, therefore leads to condensating wind
The continuous start and stop of machine, system fluctuation is very big, is easy triggering alarm, influences the safe operation of refrigerating efficiency and data center.
Traditional precision air conditioner solves cold-starting problem using cryogenic assembly, and cryogenic assembly point puts outdoor low temperature
Component and indoor low temperature component want the sealing and manufacturing processing technic of liquid storage device for placing the cryogenic assembly of outdoor environment
It asks very high, and to use the equipment such as head pressure valve, independent structural member case, liquid storage device in system, it is complicated and cause cost
The problems such as height, volume be not big, easy to install；For putting indoor cryogenic assembly, fluid reservoir, outer knot are equally increased compared with this patent
The high cost components such as structure metal plate connecting line, the same problem for facing installation space, particularly for this problem of small-sized data center
It is prominent.Traditional precision air conditioner cryogenic assembly scheme to small-sized data center and is not suitable for, and in the border critical point of outer shroud low temperature
Under, industry is so far without solution the problem of condensation fan continuous start and stop.
Utility model content
The technical problem to be solved by the embodiment of the utility model is, a kind of all weather refrigeration system is provided, to enable
Enough reduce volume and reduces cost while can realize all weather refrigeration.
In order to solve the above-mentioned technical problem, the utility model embodiment proposes a kind of all weather refrigeration system, including pressure
Contracting machine, the first condenser, evaporator, throttle valve, condensation fan and evaporator fan, the compressor, the first condenser, throttling
Valve, evaporator pass sequentially through piping connection, and the refrigeration system further includes the second condenser, check valve, solenoid valve, temperature sensing
Device, condensing pressure sensor and air-conditioner controller, second condenser are arranged in parallel with the first condenser, and the check valve is set
In the exit of the second condenser, the solenoid valve is set to the entrance of the second condenser；The temperature sensor is for detecting
Outdoor environment temperature, condensing pressure sensor are used to detect the condensing pressure of the refrigeration system；Air-conditioner controller is passed with temperature
Sensor, condensing pressure sensor, compressor, condensation fan, evaporator fan and solenoid valve electrical connection, air-conditioner controller is according to pressure
Contracting machine working condition, outdoor environment temperature, condensing pressure and condensation fan rotating speed and rotation time come control the opening of solenoid valve/
It closes.
Further, the coil pipe cubical content L of second condenser meets following formula：
L =Q/ρ*k；
Wherein, Q is total coolant quantity of all weather refrigeration system punching note, and ρ is density of the refrigerant in preset threshold temperature, k
To preset safety coefficient.
Further, the preset threshold temperature is -15 DEG C.
Further, k=1.2.
Further, the condensation fan uses adjustable speed wind turbine.
The utility model embodiment includes the second condensation by proposing a kind of all weather refrigeration system, the refrigeration system
Device, check valve, solenoid valve, temperature sensor, condensing pressure sensor and air-conditioner controller, by using the second condenser both ends
Solenoid valve and check valve control shut down after refrigerant condenser distribution, enable unit low temperature shutdown after restart when, energy
It is enough to establish high and low pressure safe operation rapidly, solve the problems, such as that previous cold-starting solution is of high cost, bulky, into
And realize the technique effect of all weather refrigeration；In addition, the utility model embodiment is opened also according to condensing pressure control solenoid valve
It closes, solves under low temperature environment, the problem of condensation fan continuous start and stop, reduce system operation fluctuation.
Description of the drawings
Fig. 1 is the schematic diagram of all weather refrigeration system of the utility model embodiment.
Fig. 2 is the structure chart of second condenser of the utility model embodiment.
Fig. 3 is the part-structure schematic diagram of all weather refrigeration system of the utility model embodiment.
Fig. 4 is the flow diagram of the control method for all weather refrigeration system that the utility model embodiment uses.
Drawing reference numeral explanation
Condensation fan 1
Solenoid valve 2
Second condenser 3
Compressor 4
First condenser 5
Evaporator 6
Evaporator fan 7
Check valve 8
Throttle valve 9.
Specific implementation mode
It should be noted that in the absence of conflict, the features in the embodiments and the embodiments of the present application can phase
It mutually combines, the utility model is described in further detail in the following with reference to the drawings and specific embodiments.
If directional instruction in the utility model embodiment（Such as up, down, left, right, before and after ...）It is only used for explaining
In a certain particular pose（As shown in the picture）Under relative position relation, motion conditions etc. between each component, if the specific appearance
When state changes, then directionality instruction also correspondingly changes correspondingly.
If in addition, the description for being related to " first ", " second " etc. in the present invention is used for description purposes only, and cannot manage
Solution is instruction or implies its relative importance or implicitly indicates the quantity of indicated technical characteristic.Define as a result, " the
One ", the feature of " second " can explicitly or implicitly include at least one of the features.
Fig. 1~Fig. 3 is please referred to, all weather refrigeration system of the utility model embodiment includes mainly condensation fan 1, electromagnetism
Valve 2, the second condenser 3, compressor 4, the first condenser 5, evaporator 6, evaporator fan 7, check valve 8, throttle valve 9, temperature
Sensor, condensing pressure sensor and air-conditioner controller.
Compressor 4, the first condenser 5, throttle valve 9, evaporator 6 pass sequentially through piping connection.Second condenser 3 and first
Condenser 5 is arranged in parallel, and check valve 8 is set to the exit of the second condenser 3, and solenoid valve 2 is set to the import of the second condenser 3
Place.Temperature sensor is used to detect the condensation pressure of the refrigeration system for detecting outdoor environment temperature, condensing pressure sensor
Power.Air-conditioner controller and temperature sensor, condensing pressure sensor, compressor 4, condensation fan 1, evaporator fan 7 and electromagnetism
Valve 2 is electrically connected, and air-conditioner controller is according to 1 turn of 4 working condition of compressor, outdoor environment temperature, condensing pressure and condensation fan
Speed controls the ON/OFF of solenoid valve 2 with rotation time.
The utility model embodiment adjusts refrigerant by the keying of control solenoid valve 2（Refrigerant）Flow, with control ginseng
With the refrigerant distribution of refrigeration cycle and the heat exchange area of condenser coil so that high and low pressure can be established rapidly in low temperature, made complete
Weather refrigeration system clean boot is run；In addition, the exchange capability of heat of the condenser of the utility model embodiment at low temperature can be more
It is matched with 1 slow-speed of revolution of condensation fan well, reduces operation fluctuation, solve under low temperature border critical point, 1 continuous start and stop of condensation fan
The problem of.The utility model embodiment is suitable for data center machine room air-conditioning, particularly with small-sized data center, integration data
Center meets small-sized data center for pole cold district winter refrigeration, has both guaranteed normally to start in winter, reliably
Operation, and it is not take up data center's area because simple in structure, and reduce liquid storage device, refrigerant is noted without more punchings, is more saved into
This.
As an implementation, the coil pipe cubical content L of the second condenser 3 meets following formula：
L =Q/ρ*k；
Wherein, Q is total coolant quantity of all weather refrigeration system punching note, and ρ is density of the refrigerant in preset threshold temperature, k
To preset safety coefficient.Preferably, k=1.2.
As an implementation, preset threshold temperature is -15 DEG C.The condenser coil heat-transfer surface of the utility model embodiment
Product changes according to environment temperature, and current industry design air conditioner in machine room meets mostly in -15 ° of external environment or more, can be
Normally start after shutdown, the utility model embodiment normally starts after can then meeting the shutdown under -15 ° to -25 °；Computer room is exhausted
It is most of to build in -25 ° of annual external environment or more area, therefore can normally be opened after a shutdown under -25 DEG C or more of environment
It is dynamic, system pressure is smoothly established, to solve the problems, such as to influence the safe operation of refrigerating efficiency and data center.
As an implementation, condensation fan 1 uses adjustable speed wind turbine.
Fig. 4 is please referred to, the utility model embodiment also uses a kind of control method of all weather refrigeration system, including step
1 ~ step 2.
Step 1：After compressor 4 is shut down, when temperature sensor detects that environment temperature is less than preset temperature value A, close
Solenoid valve 2.
Step 2：After compressor 4 is shut down, when temperature sensor detects that environment temperature is higher than preset temperature value B, open
Solenoid valve 2；After compressor 4 starts, when condensing pressure sensor detects that condensing pressure is higher than preset pressure value C, electricity is opened
Magnet valve 2.The utility model embodiment closes solenoid valve 2, in the effect of solenoid valve 2 and check valve 8 under cold external environment
Under, most of refrigerant is distributed in evaporator 6, and 5 volume of the first condenser is refrigerant volume * safety coefficients at this time（I.e. 1.2）As long as
Compressor 4 starts, and liquid refrigerants runs past throttle valve 9, evaporator 6, persistently flows back to compressor 4, and refrigerant is pushed away compressor 4
It is recycled under dynamic, all weather refrigeration system high-low pressure is also set up.
As an implementation, further include 1 rate-determining steps of condensation fan after step 2：After compressor 4 is opened, when cold
After solidifying wind turbine 1 continues preset time D with default minimum speed operation, solenoid valve 2 is closed；Compressor 4 is opened and solenoid valve 2 is in
Closed state as 1 rotating speed of condensation fan >=preset value E, and after lasting preset time D, opens solenoid valve 2.
As an implementation, further include rotating speed rate-determining steps after step 2：After compressor 4 is opened, pressed according to condensation
Power controls the rotating speed of condensation fan 1, and faster rotational speed is controlled when condensing pressure increases, and condensing pressure reduces rotating speed when reducing.Only
Compressor 4 is wanted not stop, condensation fan 1 just can only operate between maximum (top) speed and minimum speed, will not shut down.The utility model
The exchange capability of heat of the first condenser 5 and the second condenser 3 of embodiment at low temperature can preferably with 1 slow-speed of revolution of condensation fan
Match, system even running reduces fluctuation, solves under the critical point of low temperature border, the problem of 1 continuous start and stop of condensation fan.
In addition, one of ordinary skill in the art will appreciate that realize above-described embodiment method in all or part of flow,
It is that relevant hardware can be instructed to complete by program, the program can be stored in a computer readable storage medium
In, the program is when being executed, it may include such as the flow of the embodiment of above-mentioned each method.Wherein, the storage medium can be magnetic
Dish, CD, read-only memory（Read-Only Memory, ROM）Or random access memory（Random Access
Memory, RAM）Deng.
While there has been shown and described that the embodiments of the present invention, for the ordinary skill in the art,
It is appreciated that can these embodiments be carried out with a variety of variations in the case where not departing from the principles of the present invention and spirit, repaiied
Change, replace and modification, the scope of the utility model are limited by appended claims and its equivalency range.
Claims (5)
1. a kind of all weather refrigeration system, including compressor, the first condenser, evaporator, throttle valve, condensation fan and evaporator
Wind turbine, the compressor, the first condenser, throttle valve, evaporator pass sequentially through piping connection, which is characterized in that the refrigeration
System further includes the second condenser, check valve, solenoid valve, temperature sensor, condensing pressure sensor and air-conditioner controller, described
Second condenser is arranged in parallel with the first condenser, and the check valve is set to the exit of the second condenser, and the solenoid valve is set
In the entrance of the second condenser；The temperature sensor is for detecting outdoor environment temperature, and condensing pressure sensor is for examining
Survey the condensing pressure of the refrigeration system；Air-conditioner controller and temperature sensor, condensing pressure sensor, compressor, condensating wind
Machine, evaporator fan and solenoid valve electrical connection, air-conditioner controller are pressed according to compressor operating state, outdoor environment temperature, condensation
Power and condensation fan rotating speed control the ON/OFF of solenoid valve with rotation time.
2. all weather refrigeration system as described in claim 1, which is characterized in that the coil pipe cubical content L of second condenser
Meet following formula：
L =Q/ρ*k；
Wherein, Q is total coolant quantity of all weather refrigeration system punching note, and ρ is density of the refrigerant in preset threshold temperature, and k is pre-
If safety coefficient.
3. all weather refrigeration system as claimed in claim 2, which is characterized in that the preset threshold temperature is -15 DEG C.
4. all weather refrigeration system as claimed in claim 2, which is characterized in that k=1.2.
5. all weather refrigeration system as described in claim 1, which is characterized in that the condensation fan uses adjustable speed wind turbine.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820255150.0U CN208011962U (en) | 2018-02-12 | 2018-02-12 | All weather refrigeration system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820255150.0U CN208011962U (en) | 2018-02-12 | 2018-02-12 | All weather refrigeration system |
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| Publication Number | Publication Date |
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| CN208011962U true CN208011962U (en) | 2018-10-26 |
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ID=63885643
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN201820255150.0U Active CN208011962U (en) | 2018-02-12 | 2018-02-12 | All weather refrigeration system |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108224644A (en) * | 2018-02-12 | 2018-06-29 | 深圳市亿凌捷科技有限公司 | All weather refrigeration system and its control method |
| CN110030777A (en) * | 2019-03-14 | 2019-07-19 | 刘明生 | A kind of control method for realizing best condensing pressure |
| CN113587336A (en) * | 2021-06-25 | 2021-11-02 | 宁波奥克斯电气股份有限公司 | Air conditioner low-temperature refrigeration continuous operation control method and device and air conditioner |
-
2018
- 2018-02-12 CN CN201820255150.0U patent/CN208011962U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108224644A (en) * | 2018-02-12 | 2018-06-29 | 深圳市亿凌捷科技有限公司 | All weather refrigeration system and its control method |
| CN110030777A (en) * | 2019-03-14 | 2019-07-19 | 刘明生 | A kind of control method for realizing best condensing pressure |
| CN110030777B (en) * | 2019-03-14 | 2021-06-18 | 福建佰时德能源科技有限公司 | Control method for realizing optimal condensation pressure |
| CN113587336A (en) * | 2021-06-25 | 2021-11-02 | 宁波奥克斯电气股份有限公司 | Air conditioner low-temperature refrigeration continuous operation control method and device and air conditioner |
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