CN108489132A - The efficiently especially big cold series connection handpiece Water Chilling Units of energy source station - Google Patents
The efficiently especially big cold series connection handpiece Water Chilling Units of energy source station Download PDFInfo
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- CN108489132A CN108489132A CN201810500187.XA CN201810500187A CN108489132A CN 108489132 A CN108489132 A CN 108489132A CN 201810500187 A CN201810500187 A CN 201810500187A CN 108489132 A CN108489132 A CN 108489132A
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- Prior art keywords
- evaporator
- condenser
- water
- chilling units
- energy source
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 130
- 239000000498 cooling water Substances 0.000 claims abstract description 22
- 239000002826 coolant Substances 0.000 claims abstract description 15
- 239000003507 refrigerant Substances 0.000 claims description 36
- 108091006146 Channels Proteins 0.000 claims description 30
- 230000005494 condensation Effects 0.000 claims description 12
- 238000009833 condensation Methods 0.000 claims description 12
- 230000008020 evaporation Effects 0.000 claims description 12
- 238000001704 evaporation Methods 0.000 claims description 12
- 238000007710 freezing Methods 0.000 claims description 6
- 230000008014 freezing Effects 0.000 claims description 6
- 238000003780 insertion Methods 0.000 claims description 5
- 230000037431 insertion Effects 0.000 claims description 5
- 102000010637 Aquaporins Human genes 0.000 claims description 3
- 108010063290 Aquaporins Proteins 0.000 claims description 3
- 210000002445 nipple Anatomy 0.000 claims description 3
- 238000005265 energy consumption Methods 0.000 abstract description 9
- 150000001875 compounds Chemical class 0.000 abstract description 3
- 238000001816 cooling Methods 0.000 description 9
- 239000007788 liquid Substances 0.000 description 5
- 238000005057 refrigeration Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 239000008400 supply water Substances 0.000 description 4
- 239000003795 chemical substances by application Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- JEGUKCSWCFPDGT-UHFFFAOYSA-N h2o hydrate Chemical compound O.O JEGUKCSWCFPDGT-UHFFFAOYSA-N 0.000 description 2
- 238000007664 blowing Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000010025 steaming Methods 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F3/00—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems
- F24F3/06—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the arrangements for the supply of heat-exchange fluid for the subsequent treatment of primary air in the room units
- F24F3/065—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the arrangements for the supply of heat-exchange fluid for the subsequent treatment of primary air in the room units with a plurality of evaporators or condensers
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B5/00—Compression machines, plants or systems, with several evaporator circuits, e.g. for varying refrigerating capacity
- F25B5/04—Compression machines, plants or systems, with several evaporator circuits, e.g. for varying refrigerating capacity arranged in series
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B25/00—Machines, plants or systems, using a combination of modes of operation covered by two or more of the groups F25B1/00 - F25B23/00
- F25B25/005—Machines, plants or systems, using a combination of modes of operation covered by two or more of the groups F25B1/00 - F25B23/00 using primary and secondary systems
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/30—Arrangement or mounting of heat-exchangers
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F3/00—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems
- F24F3/06—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the arrangements for the supply of heat-exchange fluid for the subsequent treatment of primary air in the room units
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F3/00—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems
- F24F3/06—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the arrangements for the supply of heat-exchange fluid for the subsequent treatment of primary air in the room units
- F24F3/08—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the arrangements for the supply of heat-exchange fluid for the subsequent treatment of primary air in the room units with separate supply and return lines for hot and cold heat-exchange fluids i.e. so-called "4-conduit" system
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B2339/00—Details of evaporators; Details of condensers
- F25B2339/02—Details of evaporators
- F25B2339/024—Evaporators with refrigerant in a vessel in which is situated a heat exchanger
- F25B2339/0242—Evaporators with refrigerant in a vessel in which is situated a heat exchanger having tubular elements
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B2339/00—Details of evaporators; Details of condensers
- F25B2339/04—Details of condensers
- F25B2339/047—Water-cooled condensers
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B2400/00—General features or devices for refrigeration machines, plants or systems, combined heating and refrigeration systems or heat-pump systems, i.e. not limited to a particular subgroup of F25B
- F25B2400/06—Several compression cycles arranged in parallel
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B2700/00—Sensing or detecting of parameters; Sensors therefor
- F25B2700/21—Temperatures
- F25B2700/2117—Temperatures of an evaporator
- F25B2700/21171—Temperatures of an evaporator of the fluid cooled by the evaporator
- F25B2700/21173—Temperatures of an evaporator of the fluid cooled by the evaporator at the outlet
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Air Conditioning Control Device (AREA)
- Devices That Are Associated With Refrigeration Equipment (AREA)
Abstract
The invention discloses a kind of efficiently especially big cold series connection water-cooled cold water units of energy source station, it is responsible for including at least two evaporators, a condenser, chilled water main line and cooling water, all evaporators form evaporator series group with concatenated type of attachment, the both ends of the evaporator series group are all connected with chilled water main line, and each evaporator is both provided with the coolant channel for connecting condenser.Evaporator is arranged to tandem compound by the present invention, when load is very low, 1 compressor high load capacity or oepration at full load, i.e. continuous service is in high efficient area, it avoids multiple compressors and operates in inefficient area, the higher phenomenon of general power has substantially saved the energy consumption of handpiece Water Chilling Units.
Description
Technical field
The present invention relates to a kind of water-cooled cold water units, and in particular to a kind of energy using multi-stage pipeline embedded evaporator
The efficiently especially big cold series connection water-cooled cold water unit in source station.
Background technology
Existing water-cooled cold water unit, compressor, evaporator, condenser and expansion valve compactly fit together.It is more
When platform handpiece Water Chilling Units are used in parallel, the higher chilled water of temperature that end is flowed back to is responsible for each branch pipe separated along chilled water return water
The handpiece Water Chilling Units in parallel into each are incorporated to chilled water vibration means for main pipe for supplying water after cooling down, then by each chilled water water supply branch pipe, then are supplied to
End.Because of the reasonable installation space that the connection of a plurality of branch pipe and handpiece Water Chilling Units itself need, the handpiece Water Chilling Units of this form
Occupied space is larger.
Handpiece Water Chilling Units operational efficiency in higher load rate is high, and operational efficiency is low when middle low-load.When end load is smaller,
I.e. refrigeration requirement is small, but because cooling region is big, when chilled-water flow demand is larger, using existing handpiece Water Chilling Units, if operation platform
Number is few, and separate unit handpiece Water Chilling Units may operate in high efficient district, and general power is relatively low, but because the caliber of evaporator limits, the freezing of conveying
Water flow is less than normal, and end cannot get sufficient chilled-water flow, subregion poor refrigerating efficiency；If the number of units of operation is more, conveying
Chilled water can meet end demand, but separate unit handpiece Water Chilling Units operate in underload, inefficient area, and general power is higher.Because cold
Water dispenser group is matched by highest cooling load, so the most of the time operates in above-mentioned running on the lower load, the energy of cold water main unit
Consumption is high.
For ensure handpiece Water Chilling Units safe operation, no matter handpiece Water Chilling Units high load or middle low-load operation, chilled water pump is all
It has to last for providing substantially stationary lift consumption for it, typically no less than 80kPa causes chilled water pump energy consumption higher.
The chilled water supply backwater temperature difference of existing handpiece Water Chilling Units, design is usually 5~8 DEG C, and when operation, the practical temperature difference is higher than
Or it is less than design value, the efficiency of handpiece Water Chilling Units can all reduce.Also, existing handpiece Water Chilling Units, can not be cold to adjust on a large scale
The mode for freezing water supply water temperature (6~12 DEG C), realizes the chilled water return water temperature of setting.Therefore, frequent to the end demand temperature difference
Variation, and more fixed return water temperature can keep the project of comfort level, existing handpiece Water Chilling Units that cannot continue, efficiently, effectively
Ground provides cold.
Invention content
Goal of the invention：In order to overcome the deficiencies in the prior art, it is more to provide the use that a kind of operation is efficient, energy consumption is small
The efficiently especially big cold series connection water-cooled cold water unit of the energy source station of grade pipeline inserting evaporator.
Technical solution：To achieve the above object, the present invention provides a kind of efficiently especially big cold series connection water cooling cold of energy source station
Water dispenser group, including at least two evaporators, a condenser, chilled water main line and cooling water supervisor, all evaporators with
Concatenated type of attachment forms evaporator series group, and the both ends of the evaporator series group are all connected with chilled water main line, often
A evaporator is both provided with the coolant channel for connecting condenser, the coolant channel be divided into cold-producing medium supply channel and
Refrigerant circuit channel two parts are respectively arranged with relief valve and pressure on the cold-producing medium supply channel and refrigerant circuit channel
Contracting machine is provided with the temperature sensor of the temperature for acquiring the chilled water for leaving evaporator, the temperature in the evaporator
Sensor is connected to corresponding compressor.
The present invention design principle be：Evaporator is arranged to tandem compound, every evaporator is in metered flow, compressor
When full load, 3 degree or so of chilled water temperature can be reduced.When load is very low, 1 compressor high load capacity or transport at full capacity
Row, i.e. continuous service avoid multiple compressors and operate in inefficient area, the higher phenomenon of general power is saved in high efficient area
The energy consumption of handpiece Water Chilling Units.Also, because using concatenated structure, 1 evaporator operation, the chilled-water flow that can be provided with
3 evaporator operations are identical, can meet the chilled-water flow demand of end.
Further, the evaporator series group insertion is mounted on chilled water main line.
Further, the evaporation shell side of the evaporator is as coolant channel, if being provided with dry blowing in the evaporator
Tube side is sent out as freezing aquaporin, evaporation tube side is single-pass configuration, and the hydraulic pressure of each evaporator is reduced to 6~8kPa, if it is 3
The hydraulic pressure of evaporator series is reduced to 18~24kPa, hence it is evident that the hydraulic pressure less than 50~100kPa of present handpiece Water Chilling Units evaporator drops, can
To reduce the energy consumption of chilled water pump.
Further, the condenser insertion is mounted on cooling water supervisor, and the condensation shell side of the condenser is as system
Coolant channel is provided with several condensation tube sides as cooling-water duct in the condenser, and such refrigerant and cooling water have
Respective autonomous channel, will not contact with each other interference；Refrigerant flows between each independent evaporator and the condenser of entirety,
No matter evaporator is currently running several, and refrigerant can maximumlly utilize heat exchange area within the condenser, improve each pressure
The operational efficiency of contracting machine.
Further, the whole total length of the coolant channel is not more than 200 meters, and the length of coolant channel should not mistake
It is long, it not so can influence the using effect of refrigerant.
Further, the condenser is positioned on ground, and the evaporator is suspended vacantly above condenser, evaporator
It is not take up ground space, it is possible to reduce the area of central air conditioner room.
Further, it is connected using reduction nipple between the evaporator and chilled water main line so that different tube diameters
Evaporator and chilled water main line perfect can be connected.
Further, the total cross-sectional area of the evaporation tube side is not less than the cross-sectional area of chilled water supervisor, the condensation
The total cross-sectional area of tube side is not less than the cross-sectional area of cooling water supervisor, reduces chilled water and cooling water in this way and passes in and out steaming respectively
Send out the resistance of device and condenser so that the disengaging of chilled water and cooling water is more smooth.
Advantageous effect：Compared with prior art, the present invention having following advantage：
1, evaporator is arranged to tandem compound, when load is very low, 1 compressor high load capacity or oepration at full load,
I.e. continuous service avoids multiple compressors and operates in inefficient area, the higher phenomenon of general power is substantially saved in high efficient area
The energy consumption of handpiece Water Chilling Units；
2, tube side and shell side are single-pass configuration, and chilled water and cooling water do not need backhaul, more original return structures phase
Than the flow resistance of chilled water and cooling water is reduced, to also reduce energy consumption；
3, because using concatenated structure, chilled-water flow and more evaporators that 1 evaporator operation can provide
It runs together identical, the chilled-water flow demand of end can be met so that per compressor in the base for keeping high-efficiency operation
It on plinth, and disclosure satisfy that the demand of chilled water end, not only ensure that refrigeration effect, and substantially saved energy consumption, reduce
Operation cost is highly suitable for large area central cooling.
Description of the drawings
Fig. 1 is the structural diagram of the present invention；
Fig. 2 is the sectional view of evaporator；
Fig. 3 is the sectional view of condenser；
Fig. 4 is the structural schematic diagram of handpiece Water Chilling Units in embodiment 2；
Fig. 5 is that cooling water flows to partial schematic diagram.
Specific implementation mode
In the following with reference to the drawings and specific embodiments, the present invention is furture elucidated, it should be understood that these embodiments are merely to illustrate
It the present invention rather than limits the scope of the invention, after having read the present invention, those skilled in the art are to of the invention each
The modification of kind equivalent form falls within the application range as defined in the appended claims.
Embodiment 1：
As shown in FIG. 1 to 3, the present invention provides a kind of efficiently especially big cold series connection water-cooled cold water unit of energy source station, packet
Three evaporators, 1, condenser 3, chilled water main line 21 and cooling water supervisor 31 are included, three evaporators 1 are with concatenated company
It connects form insertion to be mounted on chilled water main line 21, it is logical that each evaporator 1 is both provided with the refrigerant for connecting condenser 3
Road 5, each coolant channel 5 divide for 52 two parts of cold-producing medium supply channel 51 and refrigerant circuit channel, and cold-producing medium supply is logical
Relief valve 4 and compressor 2 are respectively arranged on road 51 and refrigerant circuit channel 52, be provided in evaporator 1 for acquire from
The temperature sensor 10 of the temperature of the chilled water of evaporator 1 is opened, temperature sensor 10 is connected to corresponding compressor 2, evaporator 1
Using the structure of flooded evaporator, the evaporation shell side 11 of evaporator 1 is used as coolant channel, is provided in evaporator 1 several
Tube side 12 is evaporated as freezing aquaporin, and the insertion of condenser 3 is mounted on cooling water supervisor 31, and condenser 3 is cold using full-liquid type
The condensation shell side 32 of the structure of condenser, condenser 3 is used as coolant channel, and several condensation tube sides are provided in the condenser 3
33 are used as cooling-water duct, and the whole total length of the coolant channel 5 is 100 meters, and the condenser 3 is positioned on ground,
The evaporator 1 is suspended vacantly above condenser 3, between evaporator 1 and chilled water main line 21 and condenser 3 and cooling
Reduction nipple is all made of between water supervisor 31 to be connected, the total cross-sectional area of the evaporation tube side 12 is responsible for 21 not less than chilled water
Cross-sectional area, it is described condensation tube side 33 total cross-sectional area not less than cooling water supervisor 31 cross-sectional area.
Embodiment 2：
The target temperature value of the chilled water supply water temperature of default handpiece Water Chilling Units, as shown in Figures 2 and 4, three evaporators 1 are successively
It is denoted as evaporator a, evaporator b and evaporator c respectively, chilled water return water 6 enters evaporator a's by chilled water main line 21
Tube side 12 is evaporated, refrigerant is located in the evaporation shell side 11 of evaporator a, refrigerant and the chilled water return water 6 in evaporation tube side 12
Heat exchange becomes gaseous state, and 6 temperature of chilled water return water reduces, and opens relief valve 4a, it is logical that gaseous refrigerant enters cold-producing medium supply
It is flowed into condenser 3 after road 51a, flowing in condensation shell side 32 of the gaseous refrigerant in condenser 3, gaseous refrigerant is logical
The compression of overcompression machine 2a becomes liquid and is back in evaporator a by refrigerant circuit channel 52a, is recycled with this.
So when compressor 2a and condenser 3 are run, refrigerant is between evaporator 1 and the condenser 3 of entirety
The process that heat is transferred to condenser 3 from evaporator 1 is completed in flowing, and chilled water temperature reduces, temperature sensor 10a acquisitions
The temperature value for leaving the chilled water of evaporator a, as the foundation of compressor 2b operations, the collected temperature of temperature sensor 10a
Value is higher than preset target temperature value, then temperature sensor 10a can send enabled instruction to compressor 2b.
Chilled water return water 6 enters evaporator b, and relief valve 4b is in the open state, and gaseous refrigerant enters refrigeration
It is flowed into condenser 3 after agent service duct 51b, flowing, gaseous in condensation shell side 32 of the gaseous refrigerant in condenser 3
Refrigerant becomes liquid by the compression of compressor 2b and is back in evaporator b by refrigerant circuit channel 52b, with this
Cycle.
So when compressor 2b and condenser 3 are run, refrigerant is between evaporator 1 and the condenser 3 of entirety
The process that heat is transferred to condenser 3 from evaporator 1 is completed in flowing, and chilled water temperature reduces again, temperature sensor 10b
The temperature value of the chilled water of evaporator b is left in acquisition, and as the foundation of compressor 2c operations, temperature sensor 10b is collected
Temperature value is higher than preset target temperature value, then temperature sensor 10b can send enabled instruction to compressor 2c.
Chilled water return water 6 enters evaporator c, and relief valve 4c is in the open state, and gaseous refrigerant enters refrigeration
It is flowed into condenser 3 after agent service duct 51c, flowing, compressor in condensation shell side 32 of the gaseous refrigerant in condenser 3
Gaseous refrigerant is become liquid and is back in evaporator c by refrigerant circuit channel 52c by 2c, in compressor 2c and
When condenser 3 is run, refrigerant flows between evaporator 1 and the condenser 3 of entirety, completes heat from evaporator 1
It is transferred to the process of condenser 3, chilled water temperature reduces again, and the chilled water of evaporator c is left in temperature sensor 10c acquisitions
Temperature value, chilled water are used as chilled water supply water 7 by the output of chilled water main line 21.
Embodiment 3：
The target temperature value of the chilled water supply water temperature of default handpiece Water Chilling Units, as shown in Figures 2 and 4, three evaporators 1 are successively
It is denoted as evaporator a, evaporator b and evaporator c respectively, chilled water return water 6 enters evaporator a's by chilled water main line 21
Tube side 12 is evaporated, refrigerant is located in the evaporation shell side 11 of evaporator a, refrigerant and the chilled water return water 6 in evaporation tube side 12
Heat exchange becomes gaseous state, and 6 temperature of chilled water return water reduces, and relief valve 4a is in the open state, and gaseous refrigerant enters refrigeration
It is flowed into condenser 3 after agent service duct 51a, flowing, compressor in condensation shell side 32 of the gaseous refrigerant in condenser 3
Gaseous refrigerant is converted into liquid and is back in evaporator a by refrigerant circuit channel 52a by 2a, in compressor 2a
When operation with condenser 3, refrigerant flows between evaporator 1 and the condenser 3 of entirety, completes heat from evaporator
1 is transferred to the process of condenser 3, and chilled water temperature reduces, and the temperature of the chilled water of evaporator a is left in temperature sensor 10a acquisitions
Angle value, as the foundation of compressor 2b operations, the collected temperature values of temperature sensor 10a are less than preset target temperature value,
Relief valve 4b, relief valve 4c, compressor 2b and compressor 2c are in closing halted state, will not be played to chilled water return water 6
After evaporator b and evaporator c, conduct is exported finally by chilled water main line 21 successively for cooling effect, chilled water return water 6
Chilled water supplies water 7.
Embodiment 4：
As shown in Figure 1 and Figure 5, condenser 3 is connect with cooling water supervisor 31, using cooling pump as power, is cooled down through cooling tower
Cooling water return water 8 enter condenser 3, cool down to condenser 3, take away the heat of condenser 3, cooling water water outlet 9 flows to cold again
But tower 91 are moved in circles.
According to embodiment 2 and embodiment 3 it is found that no matter 2 actual motion of compressor is several, each compressor 2 is can
Full load operation is kept, compressor 2 is avoided and is in low-load operating status, the operational efficiency of handpiece Water Chilling Units is very efficient, drop
Low energy consumption.
Claims (9)
- Handpiece Water Chilling Units, including at least two evaporators (1), a condenser (3), freezing 1. the efficiently especially big cold of energy source station is connected Water main line (21) and cooling water supervisor (31), it is characterised in that：All evaporators (1) are with concatenated type of attachment shape At evaporator series group, the both ends of the evaporator series group are all connected with chilled water main line (21), each evaporator (1) it is both provided with the coolant channel (5) for connecting condenser (3), it is logical that the coolant channel (5) is divided into cold-producing medium supply Road (51) and refrigerant circuit channel (52) two parts, on the cold-producing medium supply channel (51) and refrigerant circuit channel (52) It is respectively arranged with relief valve (4) and compressor (2), is provided in the evaporator (1) and leaves the cold of evaporator (1) for acquiring Freeze the temperature sensor (10) of the temperature of water, the temperature sensor (10) is connected to corresponding compressor (2).
- The handpiece Water Chilling Units 2. the efficiently especially big cold of energy source station according to claim 1 is connected, it is characterised in that：The evaporator The insertion of series connection group is mounted on chilled water main line (21).
- The handpiece Water Chilling Units 3. the efficiently especially big cold of energy source station according to claim 1 is connected, it is characterised in that：The evaporator (1) evaporation shell side (11) is used as coolant channel, and several evaporation tube sides (12) are provided in the evaporator (1) as freezing Aquaporin.
- The handpiece Water Chilling Units 4. the efficiently especially big cold of energy source station according to claim 1 is connected, it is characterised in that：The condenser (3) embedded to be mounted on cooling water supervisor (31), the condensation shell side (32) of the condenser (3) is used as coolant channel, described It is provided with several condensation tube sides (33) in condenser (3) and is used as cooling-water duct.
- The handpiece Water Chilling Units 5. the efficiently especially big cold of energy source station according to claim 1 is connected, it is characterised in that：The refrigerant The whole total length in channel (5) is not more than 200 meters.
- 6. according to the efficiently especially big cold series connection handpiece Water Chilling Units of Claims 1 to 5 any one of them energy source station, it is characterised in that： The condenser (3) is positioned on ground, and the evaporator (1) is suspended vacantly above condenser (3).
- The handpiece Water Chilling Units 7. the efficiently especially big cold of energy source station according to claim 1 is connected, it is characterised in that：The evaporator (1) it is connected using reduction nipple between chilled water main line (21).
- The handpiece Water Chilling Units 8. the efficiently especially big cold of energy source station according to claim 3 is connected, it is characterised in that：The evaporation tube Cross-sectional area of the total cross-sectional area of journey (12) not less than chilled water supervisor (21).
- The handpiece Water Chilling Units 9. the efficiently especially big cold of energy source station according to claim 4 is connected, it is characterised in that：The condenser pipe Cross-sectional area of the total cross-sectional area of journey (33) not less than cooling water supervisor (31).
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810500187.XA CN108489132A (en) | 2018-05-23 | 2018-05-23 | The efficiently especially big cold series connection handpiece Water Chilling Units of energy source station |
| US16/132,166 US20190017712A1 (en) | 2018-05-23 | 2018-09-14 | High-efficiency extra-large cooling capacity series chiller in energy station |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810500187.XA CN108489132A (en) | 2018-05-23 | 2018-05-23 | The efficiently especially big cold series connection handpiece Water Chilling Units of energy source station |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108489132A true CN108489132A (en) | 2018-09-04 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810500187.XA Withdrawn CN108489132A (en) | 2018-05-23 | 2018-05-23 | The efficiently especially big cold series connection handpiece Water Chilling Units of energy source station |
Country Status (2)
| Country | Link |
|---|---|
| US (1) | US20190017712A1 (en) |
| CN (1) | CN108489132A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111947259A (en) * | 2020-08-19 | 2020-11-17 | 江苏区宇能源有限公司 | Regional energy station jointly built with transformer substation |
| CN113587467A (en) * | 2021-07-29 | 2021-11-02 | 江苏区宇能源有限公司 | Multi-machine-head single-return-stroke segmented compression type water chilling unit |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11747060B2 (en) * | 2020-06-17 | 2023-09-05 | Carrier Corporation | Vapor compression system and method for operating heat exchanger |
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- 2018-05-23 CN CN201810500187.XA patent/CN108489132A/en not_active Withdrawn
- 2018-09-14 US US16/132,166 patent/US20190017712A1/en not_active Abandoned
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111947259A (en) * | 2020-08-19 | 2020-11-17 | 江苏区宇能源有限公司 | Regional energy station jointly built with transformer substation |
| CN111947259B (en) * | 2020-08-19 | 2021-07-02 | 江苏区宇能源有限公司 | Regional energy station jointly built with transformer substation |
| CN113587467A (en) * | 2021-07-29 | 2021-11-02 | 江苏区宇能源有限公司 | Multi-machine-head single-return-stroke segmented compression type water chilling unit |
Also Published As
| Publication number | Publication date |
|---|---|
| US20190017712A1 (en) | 2019-01-17 |
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Application publication date: 20180904 |