CN206207796U - The cold water control system of multiple compressor reducers - Google Patents
The cold water control system of multiple compressor reducers Download PDFInfo
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- CN206207796U CN206207796U CN201621162153.7U CN201621162153U CN206207796U CN 206207796 U CN206207796 U CN 206207796U CN 201621162153 U CN201621162153 U CN 201621162153U CN 206207796 U CN206207796 U CN 206207796U
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- evaporator
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- condenser
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Abstract
The utility model discloses the cold water control system of multiple compressor reducers, including several independent small refrigeration systems and central controller, it is characterized in that, the central controller electrically connects each independent small refrigeration systems, described each independent small refrigeration systems also include gas-liquid separator, evaporator, compressor and condenser, one end of the gas-liquid separator is connected with the air inlet of compressor, the exhaust outlet of the compressor is connected with one end of condenser, the other end of the condenser is connected with one end of evaporator, the other end of the evaporator is connected to form loop with the other end of gas-liquid separator.The utility model can effectively solve current water cooler refrigeration system to be needed to shut down in maintenance; and Multi-compressor parallel system compressor oil balance under different load is difficult to cause the flimsy situation of compressor; and adjust the temperature of system in time with minimum switching on and shutting down quantity, significantly reduce the energy ezpenditure of system.
Description
Technical field
The utility model is related to art of refrigeration units, more particularly to multiple compressor reducers cold water control system.
Background technology
Current most of powerful handpiece Water Chilling Units（Refer generally to more than 150kw refrigerating capacitys）In order to produce and circuit design
On simplification, all can using powerful screw compressor or all using the designs of many parallel compressors, so can be with
So that the simplification that the pipeline of system is simplified and controlled.But in actually used, because this design is in refrigeration system
Carry out having to dead halt during Maintenance and Repair, and so require that standby refrigeration system is suspended business or purchased using unit
System, this is also that user is difficult to what is received.Additionally, due to during use load do not stop change, have foot to allow target environment
Enough comfort levels, it is desirable to which the ability output of equipment can have enough refrigerating capacity ranks to change according to load variations, and simultaneously
Connection formula compressor design can easily produce the bad problem of compressor oil return because of frequently part unit start-stop, cause compressor
Damage or the shortening in life-span.
Therefore, prior art has yet to be improved and developed.
Utility model content
In view of above-mentioned the deficiencies in the prior art, provide a kind of cold water control system of multiple compressor reducers in the utility model,
Aim to solve the problem that current water cooler refrigeration system needs to shut down in maintenance, and Multi-compressor parallel system is compressed under different load
Machine oil balance is difficult to cause the flimsy problem of compressor.
The technical solution of the utility model is as follows：
A kind of cold water control system of multiple compressors, including several independent small refrigeration systems and center control
Device, it is characterised in that the central controller electrically connects each independent small refrigeration systems, described each is independent small
Type refrigeration system also includes gas-liquid separator, evaporator, compressor and condenser, one end of the gas-liquid separator and compressor
Air inlet be connected, the exhaust outlet of the compressor is connected with one end of condenser, the other end and evaporator of the condenser
One end be connected, the other end of the evaporator and the other end of gas-liquid separator are connected to form loop.
The cold water control system of described multiple compressors, wherein, a counter is provided with the central controller.
The cold water control system of described multiple compressors, wherein, each condenser is more by being arranged in parallel parallel connection
System water- to-water heat exchanger.
The cold water control system of described multiple compressors, wherein, each evaporator is more by being arranged in parallel parallel connection
System air heat exchanger.
The cold water control system of described multiple compressors, wherein, each evaporator lower section is additionally provided with for radiating
Blower fan.
The cold water control system of described multiple compressors, wherein, the central controller be arranged at each compressor with it is each
Between blower fan.
The cold water control system of described multiple compressors, wherein, also set up between each evaporator and each condenser
There is expansion valve.
A kind of operating method of the cold water control system of multiple compressors, it is characterised in that comprise the following steps：
Whole systems are opened and carry out full load output to control targe environment, while at interval of 10 ~ 15 seconds to control targe
Temperature change is sampled, and draws temperature variation curve；
One critical-temperature of setting, sampling obtains existing temperature, relatively more existing temperature and critical-temperature, and relatively more existing temperature
Degree and previous probe temperature；
If existing temperature is more than critical-temperature, and existing temperature is more than previous probe temperature, then judge whether unit reaches
Maximum start group number, if then keeping start quantity, continues to sample circulation, if otherwise opening unit, continues sampling and follows
Ring；
If existing temperature is more than critical-temperature, and existing temperature is less than previous probe temperature, then keep start quantity, continues
Sampling circulation；
If existing temperature is less than critical-temperature, and existing temperature is less than previous probe temperature, then judge whether unit reaches
Maximum shutdown group number, if then remaining turned off quantity, continues to sample circulation, if otherwise closing unit, continues sampling and follows
Ring；
If existing temperature is less than critical-temperature, and existing temperature is more than previous probe temperature, then remain turned off quantity, continues
Sampling circulation.
The operating method of the cold water control system of described a kind of multiple compressors, wherein, the cold water control system goes out
When showing failure or needing maintenance shut-downs, the energization of equipment is kept, it is only necessary to that unit that will need to be repaired or safeguard
Breaker is disconnected, it is ensured that the unit can be repaired or safeguarded without electricity.
Beneficial effect：The cold water control system of the multiple compressor reducers provided in the utility model, solves current cold water
Machine cooling system needs to shut down in maintenance, and Multi-compressor parallel system compressor oil balance under different load is difficult to
Cause the flimsy problem of compressor, and adjust the temperature of system in time with minimum switching on and shutting down quantity, significantly reduce
The energy ezpenditure of system.
Brief description of the drawings
Fig. 1 is the structural representation of the cold water control system of the utility model multiple compressor reducer.
Fig. 2 is the principle flow chart of the cold water control system of the utility model multiple compressor reducer.
Number gas-liquid separator of 1-；Number evaporator of 2-；Number blower fan of 3-；Number compressor of 4-；Number condenser of 5-；6-
A number expansion valve；No. bis- gas-liquid separators of 7-；No. bis- evaporators of 8-；No. bis- blower fans of 9-；No. bis- compressors of 10-；No. bis- condensations of 11-
Device；No. bis- expansion valves of 12-；No. tri- gas-liquid separators of 13-；No. tri- evaporators of 14-；No. tri- blower fans of 15-；No. tri- compressors of 16-；
No. tri- condensers of 17-；No. tri- evaporators of 18-；No. tetra- gas-liquid separators of 19-；No. tetra- evaporators of 20-；No. tetra- blower fans of 21-；22- tetra-
Number compressor；No. tetra- condensers of 23-；No. tetra- expansion valves of 24-；25- central controllers；26- parallel multi-system water- to-water heat exchangers；27-
Parallel multi-system air heat exchanger.
Specific embodiment
The utility model provides a kind of cold water control system of multiple compressors, to make the purpose of this utility model, technology
Scheme and effect are clearer, clear and definite, and the utility model is further described below.It should be appreciated that what this place was described
Specific embodiment is only used to explain the utility model, is not used to limit the utility model.
As shown in figure 1, a kind of cold water control system of multiple compressors, including several independent small refrigeration systems and
Central controller, wherein, central controller electrically connects each independent small refrigeration systems, each independent small-sized refrigerating
System all also includes gas-liquid separator, evaporator, compressor and condenser, one end of gas-liquid separator and the air inlet of compressor
It is connected, the exhaust outlet of compressor is connected with one end of condenser, and the other end of condenser is connected with one end of evaporator, evaporator
The other end of the other end and gas-liquid separator be connected to form loop；Wherein gas-liquid separator includes a gas-liquid separator 1, two
Number 7, No. three gas-liquid separators 13 of gas-liquid separator and No. four gas-liquid separators 19, evaporator include 2, No. two steamings of an evaporator
Hair 8, No. three evaporators 14 of device and No. four evaporators 14, compressor include the compressor 10, three of compressor 4, two compression
Machine 16 and No. four compressors 22, condenser include a condenser 17 of condenser 11, three of condenser 5, two and No. four condensations
Device 23.The utility model is by the refrigerant system design of cooling-water machine into completely self-contained multiple small refrigeration systems, each independence
Refrigeration system can isolated operation, not only solve current water cooler refrigeration system maintenance when need shut down problem, also
Ensure that the thermic load of each system is consistent.
In practical application, a counter is provided with central controller 25, counter automatically determines which is turned on and off
One unit is basically identical to ensure the on-off frequency of each unit.
In practical application, each condenser passes through to be arranged in parallel parallel multi-system water- to-water heat exchanger 26, for solving wherein one
Individual condenser break down cause other condensers cannot normal work problem.
In practical application, each evaporator passes through to be arranged in parallel parallel multi-system air heat exchanger 27, for solving wherein
One evaporator break down cause other evaporators cannot normal work problem.
In practical application, each evaporator lower section is additionally provided with the blower fan for radiating, wherein blower fan include a blower fan 3,
9, No. three blower fans 15 of No. two blower fans and No. four blower fans 21, each fan operation make the heat of each self-contained refrigerating system reduce rapidly, rise
Timely and effectively thermolysis is arrived.
In practical application, central controller 25 is arranged between each compressor and each blower fan.
In practical application, expansion valve is additionally provided between each evaporator and each condenser, expansion valve includes an expansion valve
6th, 12, No. three expansion valves 18 of No. two expansion valves and No. four expansion valves 24, expansion valve make the liquid refrigerant of middle temperature high pressure pass through it
Throttling turns into the moist steam of low-temp low-pressure, and then refrigerant absorbs heat in evaporator and reaches refrigeration, and expansion valve passes through
The degree of superheat change of evaporator end carrys out control valve flow, prevents evaporator area underutilization and engine knock phenomenon.
As shown in Fig. 2 a kind of operating method of the cold water control system of multiple compressors, wherein, comprise the following steps：
Whole systems are opened and carry out full load output to control targe environment, while at interval of 10 ~ 15 seconds to control targe
Temperature change is sampled, and draws temperature variation curve；
One critical-temperature of setting, sampling obtains existing temperature, relatively more existing temperature and critical-temperature, and relatively more existing temperature
Degree and previous probe temperature；
If existing temperature is more than critical-temperature, and existing temperature is more than previous probe temperature, then judge whether unit reaches
Maximum start group number, if then keeping start quantity, continues to sample circulation, if otherwise opening unit, continues sampling and follows
Ring；
If existing temperature is more than critical-temperature, and existing temperature is less than previous probe temperature, then keep start quantity, continues
Sampling circulation；
If existing temperature is less than critical-temperature, and existing temperature is less than previous probe temperature, then judge whether unit reaches
Maximum shutdown group number, if then remaining turned off quantity, continues to sample circulation, if otherwise closing unit, continues sampling and follows
Ring；
If existing temperature is less than critical-temperature, and existing temperature is more than previous probe temperature, then remain turned off quantity, continues
Sampling circulation.
In practical application, when beginning to use, equipment can first be opened with whole systems and control targe environment is born entirely
Lotus exports, while being sampled to control targe temperature change at interval of 10 seconds, temperature variation curve is drawn, when control targe temperature
Degree reaches closes a unit after design temperature, and continuation is sampled to control targe temperature change, such as after 5 minutes temperature after
It is continuous to reduce, then a unit is turned off, by that analogy, untill temperature rises, institute's start group quantity is kept, until control mesh
Mark temperature opens a unit after reaching sets target temperature upper limit, and continuation is sampled to control targe temperature change, and such as 5
Temperature continues to rise after minute, then be then turned on a unit, by that analogy, untill temperature reduction, keeps institute's start group number
Amount, closes a unit, by after several cycles, equipment can be stablized after control targe temperature reaches sets target temperature
It is circulated in the case of being turned on and off a unit, with season control targe temperature in a less interval interior fluctuation,
Increase environmental amenity degree.Which unit decision is turned on and off is automatically determined by the counter in controller, with
Ensure that the on-off frequency of each unit is basically identical.Determined rather than using the conventional unit available machine time, because the machine of decision
The main reason of group service life is unit on-off frequency rather than run time.When number of run is the same, unit
Run time there will not be too big deviation.
Broken down when equipment or when needing maintenance shut-downs, the energization of equipment can be kept, it is only necessary to need to repair or
It is the breaker disconnection of that unit safeguarded, it is ensured that the unit can be repaired or safeguarded without electricity, so that will not be right
The overall operation of equipment causes big influence, and venue can keep normal business status.
The cold water control system of the multiple compressor reducers provided in the utility model, solves current water cooler refrigeration system
Need to shut down in maintenance, and Multi-compressor parallel system compressor oil balance under different load is difficult to cause compressor easy
The problem of damage, and adjust the temperature of system in time with minimum switching on and shutting down quantity, the energy for significantly reducing system disappears
Consumption.
It should be appreciated that application of the present utility model is not limited to above-mentioned citing, those of ordinary skill in the art are come
Say, can according to the above description be improved or converted, all these modifications and variations should all belong to the appended power of the utility model
The protection domain that profit is required.
Claims (7)
1. many cold water control systems of compressor reducer, including several independent small refrigeration systems and central controller, it is special
Levy and be, the central controller electrically connects each independent small refrigeration systems, described each independent small-sized refrigerating
System also includes gas-liquid separator, evaporator, compressor and condenser, one end of the gas-liquid separator and the air inlet of compressor
Mouthful it is connected, the exhaust outlet of the compressor is connected with one end of condenser, the other end of the condenser and one end of evaporator
It is connected, the other end of the evaporator is connected to form loop with the other end of gas-liquid separator.
2. the cold water control system of multiple compressor reducers according to claim 1, it is characterised in that in the central controller
It is provided with a counter.
3. the cold water control system of multiple compressor reducers according to claim 1, it is characterised in that each condenser passes through
It has been arranged in parallel parallel multi-system water- to-water heat exchanger.
4. the cold water control system of multiple compressor reducers according to claim 1, it is characterised in that each evaporator passes through
It has been arranged in parallel parallel multi-system air heat exchanger.
5. the cold water control system of multiple compressor reducers according to claim 1, it is characterised in that each evaporator lower section
It is additionally provided with the blower fan for radiating.
6. the cold water control system of multiple compressor reducers according to claim 1, it is characterised in that the central controller sets
It is placed between each compressor and each blower fan.
7. the cold water control system of multiple compressor reducers according to claim 1, it is characterised in that each evaporator with it is each
Expansion valve is additionally provided between condenser.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621162153.7U CN206207796U (en) | 2016-10-25 | 2016-10-25 | The cold water control system of multiple compressor reducers |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621162153.7U CN206207796U (en) | 2016-10-25 | 2016-10-25 | The cold water control system of multiple compressor reducers |
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| Publication Number | Publication Date |
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| CN206207796U true CN206207796U (en) | 2017-05-31 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201621162153.7U Active CN206207796U (en) | 2016-10-25 | 2016-10-25 | The cold water control system of multiple compressor reducers |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106352604A (en) * | 2016-10-25 | 2017-01-25 | 佛山市澳霆环境设备制造有限公司 | Water cooling control system with multiple compressors and operating method |
-
2016
- 2016-10-25 CN CN201621162153.7U patent/CN206207796U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106352604A (en) * | 2016-10-25 | 2017-01-25 | 佛山市澳霆环境设备制造有限公司 | Water cooling control system with multiple compressors and operating method |
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