CN206890895U - Air-cooled liquid chillers - Google Patents
Air-cooled liquid chillers Download PDFInfo
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- CN206890895U CN206890895U CN201720592392.4U CN201720592392U CN206890895U CN 206890895 U CN206890895 U CN 206890895U CN 201720592392 U CN201720592392 U CN 201720592392U CN 206890895 U CN206890895 U CN 206890895U
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- condenser
- evaporator
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- compressor
- water tank
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Abstract
The utility model discloses a kind of air-cooled water cooling machine, including：Water tank, water pump, evaporator, compressor, condenser and expansion valve and dual pressure controller；Water tank connects evaporator, and water pump is installed on water tank, for the water in water tank to be pumped into evaporator；Condenser coil and condenser fan group are provided with condenser；Input connection compressor, the output end connection evaporator of condenser coil；Condenser fan group is used to generate condenser coil position cooling wind；Expansion valve is between the output end of condenser coil and evaporator；Evaporator connects compressor；Dual pressure controller is installed on the blast pipe of compressor, and dual pressure controller connects condenser fan group by electric wire, for sensing the pressure in compressor high-pressure exhaust pipe, and accordingly controls the work of condenser fan group.The change that the utility model can be directed to environment temperature adjusts condensing pressure accordingly, overcomes variation of ambient temperature to influence caused by heating power expansion valve, the normal work of guarantee air cooling refrigeration unit.
Description
Technical field
The utility model belongs to circularly cooling technical field, relates in particular to a kind of air-cooled liquid chillers.
Background technology
Air-cooled water cooling machine is a kind of common cooling-water machine, after the water of normal temperature is as cold as into certain temperature with compression mechanism
To strengthen cooling mould or machine.Its operation principle is as follows：Refrigerant with compressor by refrigerant compression into HTHP
Condenser is delivered to after gas；The condensed device cooling of refrigerant gas of the high pressure-temperature becomes normal temperature high voltage refrigerant liquid；
The normal temperature high voltage refrigerant liquid flows through heating power expansion valve, and the refrigerant that low-temp low-pressure is formed after being throttled by heating power expansion valve is wet
Steam simultaneously enters in evaporator.Water supply pump sucks the water in water tank in evaporator simultaneously, the refrigerant moist steam of low-temp low-pressure
The heat of the water being absorbed into evaporator make water temperature drop；Refrigerator moist steam is sucked back into compressor again simultaneously, and again
Multiple next kind of refrigeration cycle, so as to realize the purpose of refrigeration.In the process, by setting fan to be condensed to entering in condenser
Refrigerant gas in device pipeline carries out air-cooled.Therefore, air-cooled flow caused by fan and condenser are to refrigerant gas
Cooling effect has most direct causality.The problem of prior art is present be：One specific refrigeration unit, its air stream
Amount, condensation area and compressor air-discharging amount are held essentially constant.Therefore, in the case where refrigeration duty is constant, if environment temperature is neglected
So reduce, condensing pressure will necessarily accordingly reduce, cause the front and rear pressure difference of expansion valve to diminish, cause fluid supply capacity to decline.Therefore,
How a kind of new air-cooled water cooling machine is developed, the change that can be directed to environment temperature adjusts condensing pressure accordingly, gram
Variation of ambient temperature is taken on influence caused by heating power expansion valve, ensures the normal work of air cooling refrigeration unit, is this area skill
Art personnel need the direction studied.
Utility model content
The utility model provides a kind of air cooling refrigeration unit, can be adjusted accordingly for the change of environment temperature cold
Solidifying pressure, variation of ambient temperature is overcome on influence caused by heating power expansion valve, the normal work of guarantee air cooling refrigeration unit.
The technical scheme that it is used is as follows：
A kind of air-cooled liquid chillers, including：Water tank, water pump, evaporator, compressor, condenser and expansion valve and high pressure
Controller；The water tank connects evaporator, and water pump is installed on water tank, for the water in water tank to be pumped into evaporator；It is described
Condenser coil and condenser fan group are provided with condenser；The input connection compressor of the condenser coil, output end connection are steamed
Send out device；The condenser fan group is used to generate condenser coil position cooling wind；The expansion valve is located at condenser coil
Between output end and evaporator；The evaporator connects compressor；The dual pressure controller is installed on the blast pipe of compressor,
And the dual pressure controller connects condenser fan group by electric wire, for sensing the pressure in compressor high-pressure exhaust pipe, and root
According to the work of the pressure value control condenser fan group sensed.
By using this technical scheme：When environment temperature produces change, the front and rear pressure difference of expansion valve diminishes, and causes to supply
Liquid energy power declines, and now pressure value declines in the high-pressure exhaust pipe of compressor.And dual pressure controller senses the high pressure of compressor
Pressure value is abnormal in blast pipe, corresponding to adjust condenser fan group, the air cooling effect to condenser coil is increased, so as to realize for ring
Border temperature change accordingly adjusts condensing pressure, ensure that the normal work of air cooling refrigeration unit.
Preferably, in above-mentioned air-cooled liquid chillers：The condenser fan group includes at least two independent condensating winds
Fan, the dual pressure controller is used to sense the pressure in compressor high-pressure exhaust pipe, and adjusts control according to the pressure value sensed
Make in running order condenser fan quantity.
It is further preferred that in above-mentioned air-cooled liquid chillers：The dual pressure controller includes pressure sensitive module, calculates mould
Block and control module；The pressure sensitive module is used to sensing pressure value in the compressor high-pressure exhaust pipe and pressure value is anti-
It is fed in computing module；Air quantity algorithm is previously written in the computing module, for the pressure according to pressure sensitive module feedback
Force value calculates the condensation discharge quantity of fan for being adapted to current environmental temperature, and the result of calculation is fed back in control module；Institute
The result of calculation output control signal that control module is used to feed back according to computing module is stated, controls opening for each condenser fan respectively
Open/turn off.
By using this technical scheme：Condenser fan operation number of units is changed with dual pressure controller, so as to change condensating wind
The air quantity of fan, change condenser heat exchange function, be finally reached the purpose of regulation condensing pressure.Relative to adjustment separate unit condenser fan
Rotating speed technical scheme, the advantage of the technical program is that cost is relatively low, and design on control circuit is simple.
Compared with prior art, the utility model is simple in construction, easily prepared.The change that environment temperature can be directed to is corresponding
Regulation condensing pressure, overcome variation of ambient temperature ensureing air cooling refrigeration unit just to influence caused by heating power expansion valve
Often work.
Brief description of the drawings
The utility model is described in further detail with embodiment below in conjunction with the accompanying drawings：
Fig. 1 is the structural representation of the utility model embodiment 1.
Each reference and component names corresponding relation are as follows：
1st, water tank；2nd, water pump；3rd, evaporator；4th, compressor；5th, condenser；6th, expansion valve；7th, dual pressure controller；51st, it is cold
Solidifying coil pipe；52nd, condenser fan group；
Embodiment
In order to illustrate more clearly of the technical solution of the utility model, the utility model is made into one below in conjunction with accompanying drawing
Step description.
It is the structure of embodiment 1 of the present utility model as shown in Figure 1：
A kind of air-cooled liquid chillers, including：Water tank 1, water pump 2, evaporator 3, compressor 4, condenser 5, the He of expansion valve 6
Dual pressure controller 7.
The water tank 1 connects evaporator 3, and water pump 2 is installed on water tank 1, for the water in water tank 1 to be pumped into evaporator 3
In；Condenser coil 51 and condenser fan group 52 are provided with the condenser 5；The input connection compressor of the condenser coil 51
4th, output end connection evaporator 3；The condenser fan group 52 is used to generate the position of condenser coil 51 cooling wind；It is described swollen
Swollen valve 6 is between the output end of condenser coil 51 and evaporator 3；The evaporator 3 connects compressor 4；
The dual pressure controller 7 connects condenser fan group 52, is controlled for induced environment temperature and according to environment temperature cold
The work of solidifying fan group 52.
Specifically, at least two independent condenser fans are included in the condenser fan group 52；The dual pressure controller 7
Including pressure sensitive module, computing module and control module；The pressure sensitive module is used to sense compressor（4）High pressure gas
Pressure value in pipe simultaneously feeds back to the pressure value in computing module；Air quantity algorithm has been previously written in the computing module, has been used
In calculating the condensation discharge quantity of fan that is adapted to current environmental temperature according to the pressure value of pressure sensitive module feedback, and this is counted
Result is calculated to feed back in control module；The result of calculation output control that the control module is used to be fed back according to computing module is believed
Number, the on/off of each condenser fan is controlled respectively.
In practice, its course of work is as follows：
Compressor 4 is by refrigerant compression into the condenser coil 51 that condenser 5 is delivered to after the refrigerant gas of HTHP
In；Now, condenser fan group 2 starts air-cooled to condenser coil 51, makes the refrigerant gas of the high pressure-temperature become normal temperature high voltage
Refrigerant liquid；The normal temperature high voltage refrigerant liquid flows through expansion valve 6, and the system of low-temp low-pressure is formed after being throttled by expansion valve 6
Cryogen damp steam simultaneously enters in evaporator 3.Water pump 2 sucks the water in water tank 1 in evaporator 3 simultaneously, the refrigeration of low-temp low-pressure
The heat for the water that agent moist steam is absorbed into evaporator 3 makes water temperature drop, generates the low-temperature cold water required for industrial processes, together
When refrigerant moist steam suck back in compressor 4 carry out next round circulation.During, when environment temperature produces change, expansion
The front and rear pressure difference of valve 6 diminishes, and causes fluid supply capacity to decline, and now pressure value declines in the high-pressure exhaust pipe of compressor 4.Now,
The pressure sensitive module of dual pressure controller 7 senses the pressure value in the high-pressure exhaust pipe of compressor 4 and feeds back to the pressure value
In computing module；The computing module works as front ring according to the pressure value by being previously written air quantity algorithm and having calculated to be adapted to
The condensation discharge quantity of fan of border temperature, and the result of calculation is fed back in control module；The control module is according to computing module
The result of calculation output control signal of feedback, change the number of the specific condenser fan in running status in condenser fan group 52
Amount, so as to change the cold wind air quantity of the output of condenser fan group 52, so as to change condenser heat exchange function, it is finally reached regulation condensation
The purpose of pressure.
It is described above, only specific embodiment of the utility model, but the scope of protection of the utility model is not limited to
This, any those skilled in the art is in the change that in technical scope, can be readily occurred in disclosed in the utility model
Or replace, it should all cover within the scope of protection of the utility model.The scope of protection of the utility model is with claims
Protection domain is defined.
Claims (3)
1. a kind of air-cooled liquid chillers, including：Water tank（1）, water pump（2）, evaporator（3）, compressor（4）, condenser（5）With
Expansion valve（6）；The water tank（1）Connect evaporator（3）, water pump（2）It is installed on water tank（1）On, for by water tank（1）In water
It is pumped into evaporator（3）In；The condenser（5）It is interior to be provided with condenser coil（51）With condenser fan group（52）；The condenser coil
（51）Input connection compressor（4）, output end connection evaporator（3）；The condenser fan group（52）For to condensate pans
Pipe（51）Position generation cooling wind；The expansion valve（6）Located at condenser coil（51）Output end and evaporator（3）It
Between；The evaporator（3）Connect compressor（4）；
It is characterized in that：Also include dual pressure controller（7）, the dual pressure controller（7）It is installed on compressor（4）Blast pipe
On, and the dual pressure controller（7）Condenser fan group is connected by electric wire（52）, for sensing compressor（4）High-pressure exhaust pipe
Interior pressure, and control condenser fan group（52）Work.
2. air-cooled liquid chillers as claimed in claim 1, it is characterised in that：The condenser fan group（52）Including at least two
Independent condenser fan, the dual pressure controller（7）For sensing compressor（4）Pressure in high-pressure exhaust pipe, and according to sense
The pressure value adjustment that should be arrived controls in running order condenser fan quantity.
3. air-cooled liquid chillers as claimed in claim 2, it is characterised in that：The dual pressure controller（7）Including pressure sensitive
Module, computing module and control module；
The pressure sensitive module is used to sense compressor（4）The pressure value is simultaneously fed back to meter by pressure value in high-pressure exhaust pipe
Calculate in module；
Air quantity algorithm has been previously written in the computing module, it is suitable for being calculated according to the pressure value of pressure sensitive module feedback
It should be fed back in the condensation discharge quantity of fan of current environmental temperature, and by the result of calculation in control module；
The control module is used for the result of calculation output control signal fed back according to computing module, controls each condensating wind respectively
The on/off of fan.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720592392.4U CN206890895U (en) | 2017-05-25 | 2017-05-25 | Air-cooled liquid chillers |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720592392.4U CN206890895U (en) | 2017-05-25 | 2017-05-25 | Air-cooled liquid chillers |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206890895U true CN206890895U (en) | 2018-01-16 |
Family
ID=61320724
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720592392.4U Expired - Fee Related CN206890895U (en) | 2017-05-25 | 2017-05-25 | Air-cooled liquid chillers |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206890895U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113970174A (en) * | 2020-07-24 | 2022-01-25 | 广东美的制冷设备有限公司 | Outdoor fan control method, air conditioner, and computer-readable storage medium |
-
2017
- 2017-05-25 CN CN201720592392.4U patent/CN206890895U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113970174A (en) * | 2020-07-24 | 2022-01-25 | 广东美的制冷设备有限公司 | Outdoor fan control method, air conditioner, and computer-readable storage medium |
| CN113970174B (en) * | 2020-07-24 | 2022-11-11 | 广东美的制冷设备有限公司 | Outdoor fan control method, air conditioner, and computer-readable storage medium |
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|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180116 Termination date: 20210525 |
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| CF01 | Termination of patent right due to non-payment of annual fee |