CN104457002B - Integrated double-cooling water chilling unit - Google Patents
Integrated double-cooling water chilling unit Download PDFInfo
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- CN104457002B CN104457002B CN201410845061.8A CN201410845061A CN104457002B CN 104457002 B CN104457002 B CN 104457002B CN 201410845061 A CN201410845061 A CN 201410845061A CN 104457002 B CN104457002 B CN 104457002B
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- catch basin
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- 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
- F25B1/00—Compression machines, plants or systems with non-reversible cycle
- F25B1/005—Compression machines, plants or systems with non-reversible cycle of the single unit type
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- 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
- F25B39/00—Evaporators; Condensers
- F25B39/04—Condensers
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- 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
- F25B43/00—Arrangements for separating or purifying gases or liquids; Arrangements for vaporising the residuum of liquid refrigerant, e.g. by heat
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- 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
- F25B49/00—Arrangement or mounting of control or safety devices
- F25B49/02—Arrangement or mounting of control or safety devices for compression type machines, plants or systems
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- 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
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Power Engineering (AREA)
- Devices That Are Associated With Refrigeration Equipment (AREA)
Abstract
The invention provides an integrated double-cooling water chilling unit. The integrated double-cooling water chilling unit has the advantages of being high in integration degree, convenient to install, efficient, capable of saving energy and wide in application range, a heat exchanger is cleaned without shutdown, and the integrated double-cooling water chilling unit is convenient to use. The integrated double-cooling water chilling unit particularly comprises a closed refrigeration cycling system. The closed refrigeration cycling system is formed by a compressor, an oil separator, a double-cooling condenser, an expanding and throttling device and an evaporator which are connected together in series sequentially. A freezing water cycling device is arranged between an inlet and an outlet of the evaporator. The double-cooling condenser comprises a catch basin and a spraying device. The spaying device is communicated with the catch basin through a spraying water cycling pump and a first water processing device. A cooling coil, a flow equalizing plate, filler and the catch basin are arranged below the spraying device in sequence. A cooling fan is arranged at the top of the double-cooling condenser. A pre-cooler and a water collector are arranged below the cooling fan in sequence. The catch basin is provided with a first automatic water supplement device, an overflow pipe, an automatic drainage device and an on-line dirt sucker. One end of the pre-cooler is connected with a gas outlet of the oil separator, and the other end of the pre-cooler is connected with the expanding and throttling device through the cooling coil.
Description
Technical field
The present invention relates to air conditioning unit technical field, especially relate to a kind of double cold handpiece Water Chilling Units of integral type.
Background technology
Integrated handpiece Water Chilling Units are because it is energy-efficient, compact conformation, easy for installation, have in China in recent years
Increasingly it is widely applied.At present, the integrated handpiece Water Chilling Units on market mainly have two kinds of forms: 1, by chiller unit,
Cooling tower, cooling pump, refrigerating water pump, expansion tank and pipeline and control device integrate, can outdoor mounted, without Special machine room
And install simple, but unit haves the shortcomings that heat exchange efficiency is poor, water consumption is big, noise is big, volume is big, efficiency is low；2nd, by routine
Handpiece Water Chilling Units, evaporative condenser, cooling pump and pipeline and control device integrate, can outdoor mounted, heat exchange efficiency high and
Water consumption is little, but unit haves the shortcomings that pipeline is complicated, long in time limit, it is loaded down with trivial details to install, operational efficiency is poor.
Dirt can be produced, thus leading to heat exchange on heat exchanger tube after the integrated handpiece Water Chilling Units longtime running of above two form
Effect declines, and deterioration of efficiency therefore needs according to water quality situation routine cleaning heat exchanger.Now many clear using Chemical cleaning and water under high pressure
Wash, not only time-consuming, laborious, costly it is necessary to shut down and have influence on cooling, bring inconvenience to user.And above two
The integrated handpiece Water Chilling Units of form all cannot realize year round cooling function, therefore cannot be used in air-conditioning or the technique of year round cooling
Occasion, the scope of application is narrower.
Content of the invention
The purpose of the present invention is to propose to a kind of double cold handpiece Water Chilling Units of integral type, it is high, easy for installation, high that it has degree of integration
Effect energy-conservation and feature applied widely, without stop cleaning heat exchanger, easy to use.
The double cold handpiece Water Chilling Units of the integral type of the present invention are included by the compressor being sequentially connected in series together, oil eliminator, double cold
The closed cryogenic cycles system that condenser, expansion throttling device, vaporizer are constituted；Set between the import and export of described vaporizer
There is freezing water circle device；It is critical only that described pair of cool condenser includes catch basin and spray equipment；Described spray equipment passes through
Spray water-circulating pump and the first water treatment facilities are communicated with catch basin, be sequentially provided with cooling coil, homogenizing plate, fill out under spray equipment
Material, catch basin, the top of double cool condensers is provided with cooling blower, is sequentially provided with precooler, water collection device below cooling blower；Described
Catch basin is furnished with the first automatic water-replenishing device, overflow pipe, automatic sewage discharging device, the dirty device of online suction；One end of described precooler with
The gas outlet of oil eliminator is connected, and the other end is connected with expansion throttling device by cooling coil.
Further, described pair is serially connected with device for drying and filtering, liquid-sighting glass between cool condenser and expansion throttling device.
Specifically, the air vent of described compressor is connected with the air inlet of oil eliminator, described oil eliminator fuel-displaced
Mouth is connected with the oil-in of compressor by oil return apparatus, and described oil return apparatus are by the oil strainer connected and oil return solenoid valve
Constitute；The gas outlet of described oil eliminator is connected with the entrance of double cool condensers, and dry filter is passed through in the outlet of double cool condensers
Device, liquid-sighting glass, expansion throttling device are connected with the entrance of described vaporizer, the air entry phase of described evaporator outlet and compressor
Even, the outlet of described compressor is connected with the entrance of compressor by an injection oil return device, described injection oil return device by
The injection oil return solenoid valve of series connection and injector are constituted, and described injector is connected with the oil return pipe of vaporizer.
The operation principle of the double cold handpiece Water Chilling Units of above-mentioned integral type is as follows: the liquid refrigerant in vaporizer absorbs heat, steams
Sending out is gaseous refrigerant, enters in compressor by the air entry of compressor and becomes gases at high pressure, is then discharged out to oil eliminator
Inside carry out Oil-gas Separation, the gases at high pressure after oil eliminator Oil-gas Separation enter double cool condensers and are condensed into the liquid of high pressure
State cold-producing medium, is then changed into low-pressure, liquid refrigerant through expansion throttling device and returns in this vaporizer, above procedure week and
Renew ground circularly cooling.
Oil return solenoid valve and compressor with opening with pass, can by control this oil return solenoid valve be turned on and off to control
Oil return works；And oil strainer can filter the impurity in return line, prevent pipeline blockage it is ensured that oil enters in compressor
Portion, thus extend the service life of this compressor.Can opening by the injection oil return solenoid valve in control injection oil return device
Open or close to control injection oil return to work, and injector is will to be steamed using the refrigerant gas of compressor air-discharging end elevated pressures
Send out device mesolow freezing oil to suck in injector, return to the suction end of compressor after mixing, reach the purpose of oil return.
Spray water-circulating pump draws water from catch basin and sends into spray equipment through the first water treatment facilities, and spray equipment will spray
Water drenching sprays the surface of the cooling coil thin water film to form continuous uniform, drops through precooler for compressor in cooling coil
The high-temperature high-pressure refrigerant discharged after temperature, is that the cooling from top to bottom of thin water film and cooling blower forced convection is empty outside cooling coil
Gas, the cold-producing medium in cooling coil is carried out hot and humid area by this thin water film and cooling air；Unevaporated shower water is through all flowing
Plate uniformly flows into filler, and the cooling air flowing through with side carries out heat exchange in filler, and cooling blower by cooling coil and is filled out
Saturated moist air in material is extracted out, and sequentially passes through water collection device, carries out with the high-temperature high-pressure refrigerant in precooler after precooler
Heat exchange, then enter air from the outlet of top cooling blower；Shower water after cooled enters in catch basin, then follows through shower water
Ring pump proceeds to circulate, and the water evaporating in condensation process is given to supplement by the first automatic water-replenishing device automatically；Cooler pan
Pipe outlet is connected with expansion throttling device entrance.Because the high-temperature high-pressure refrigerant that compressor is discharged first passes through after precooler cooling
Enter back into cooling coil and carry out hot and humid area with shower water and cooling air, hence in so that condensation temperature is lower, heat exchange efficiency is more
High.The precooler, the first water treatment facilities, the dirty device of online suction and the automatic sewage discharging device that are provided with double cool condensers are equivalent to this
Double cool condensers have carried out online quadruple antiscale, scale removal measure.
Further, described spray water-circulating pump is furnished with electric heater；Described catch basin is furnished with electric heater unit and polywater
Pond heat insulation wall.When outside air temperature is less than setting value, can control in the electric heater and catch basin on spray water-circulating pump
Electric heater unit is heated, in order to avoid making water freeze and then damage unit because ambient temperature being too low；Wherein catch basin insulation
Wall ensure that in catch basin, spray water temperature will not too fast be lost, and serves good energy-saving effect, it is achieved thereby that year round cooling
Function.
Further, described freezing water circle device includes chilled water circulating pump and the check valve being cascaded, and institute
State parallel pipeline between the import and export of freezing water circle device and be provided with self-operated type differential-pressure bypass valve；Described freezing water circulation dress
Between the import and export put, series pipe is provided with spiral degassing scummer, the second water treatment facilities and online ball cleaning apparatus.
The Main Function of above-mentioned freezing water circle device is that the chilled water after release heat cooling in vaporizer is transported to user side,
Self-operated type differential-pressure bypass valve can keep the pressure reduction between the water-in and water-out mouth of pipe constant, and check valve can avoid freezing water circle device
Runner pipe occur circulation liquid refluence.Above-mentioned spiral degassing scummer, the second water treatment facilities and online ball cleaning apparatus
Online triple filter is carried out to the runner pipe of this freezing water circle device, wherein spiral degassing scummer can also effectively remove
Air air mass in chilled water system and microbubble, have self-bleeding effect.
Further, described freezing water circle device import and export between series pipe on be additionally provided with blowoff valve, second
Automatic water-replenishing device and level pressure expansion drum, described level pressure expansion drum is provided with adjustable safety valve.Above-mentioned level pressure expansion drum is used for
Play compensator or trimmer pressure fluctuation and the effect absorbing part feedwater, for eliminating working media because of temperature change in freezing water circle device
Increased partial volume；And adjustable safety valve is used for discharging the pressure in chilled water system；Blowoff valve is used for discharging chilled water
Water in system；Above three part all plays the effect ensureing system safety operation.
In above-mentioned freezing water circle device, the process of circulation of circulation liquid is: unit chilled water water inlet passes through level pressure expansion drum
Through spiral degassing scummer, chilled water circulating pump, the second water treatment facilities, online ball cleaning apparatus, vaporizer and unidirectional
Valve is connected to the outlet of chilled water.
Further, this pair of cold handpiece Water Chilling Units are provided with control device, and the water inlet of described freezing water circle device is provided with
Second pressure sensor, second temperature sensor；Described freezing water circle device water outlet be provided with first pressure sensor,
Three-temperature sensor, discharge switch, frost prevention switch；It is provided with the 3rd pressure between described oil eliminator and double cool condenser to pass
Sensor；It is provided with the first temperature sensor between described spray equipment and the first water treatment facilities；Described control device is respectively with
One pressure transducer, second pressure sensor, the 3rd pressure transducer, the first temperature sensor, second temperature sensor, the 3rd
Temperature sensor, discharge switch, frost prevention switch, chilled water circulating pump, spray water-circulating pump, cooling blower and compressor phase
Even.Control device, can be according to second pressure sensor in addition to load start and stop pressed by conventional control compressor, and first pressure passes
Sensor, second temperature sensor, the signal of three-temperature sensor and discharge switch, frost prevention switch transmission, to chilled water
The start and stop of circulating pump and protection are controlled, with the demand of adaptive system refrigeration duty change.Furthermore, it is possible to be passed according to the 3rd pressure
Sensor and the signal of the first temperature sensor transmission, the start and stop to spray water-circulating pump and cooling blower are controlled, to adapt to
Unit whole year operating mode is run.
The invention has the advantages that compared with the prior art: degree of integration is high, thus compact conformation, easy for installation,
Energy-efficient and applied widely.The double cold handpiece Water Chilling Units of the integral type of the present invention are by double cool condensers, collection kind of refrigeration cycle, freezing
Water system, water treatment system, centralized control system become one, alternative routine machine room and integral installation in outdoor.This machine
Group without Special machine room, without cooling tower, no-cooling-water conveying power consumption so that volume is less, in hgher efficiency, compact conformation, make
With life-span length, conveniently install and maintenance, and save floor space, shortening construction period and the reduction investment of equipment and run into
This；Be widely portable to various industry and commerce air adjustments or technique chilled water preparation, be particularly suited for low wet bulb temperature area and
The air-conditioning of year round cooling or technique occasion.
Be provided with double cool condensers of the double cold handpiece Water Chilling Units of the integral type of the present invention precooler, the first water treatment facilities,
Line inhales dirty device and automatic sewage discharging device, water quality has been carried out with online quadruple and has processed；It is mounted with chilled water system that spiral degassing removes
Slag device, the second water treatment facilities, online ball cleaning apparatus, have carried out triple process to water quality；Heat exchange therefore can be remained
The cleannes of heat exchanger tube in device, without stop cleaning heat exchanger, thus easy to use, and may insure optimal heat transfer effect
Really, the service life of heat exchanger tube can be extended, reduce labor intensity, increase economic benefit.
Brief description
Fig. 1 is the workflow schematic diagram of the double cold handpiece Water Chilling Units of integral type of embodiments of the invention.
In figure: 1- compressor；2- oil eliminator；The double cool condenser of 3-；4- expansion throttling device；5- high-efficiency evaporator；6-
Freezing water circle device；7- oil strainer；8- oil return solenoid valve；9- device for drying and filtering；10- liquid-sighting glass；11- injection oil return electromagnetism
Valve；12- injector；13- precooler；14- cooling coil；15- homogenizing plate；16- filler；17- water collection device；18- catch basin；19-
Cooling blower；20- sprays water-circulating pump；21- first water treatment facilities；22- spray equipment；23- first automatic water-replenishing device；
24- overflow pipe；25- automatic sewage discharging device；26- inhales dirty device online；27- spiral degassing scummer；28- control device；29- freezes
Water-circulating pump；30- outer container；31- second water treatment facilities；The online ball cleaning apparatus of 32-；33- check valve；34- level pressure expands
Tank；35- second automatic water-replenishing device；36- second pressure sensor；37- adjustable safety valve；38- electric heater unit；39-
One temperature sensor；40- second temperature sensor；41- discharge switchs；42- frost prevention switch；43- three-temperature sensor；
44- electric heater；45- first pressure sensor；46- self-operated type differential-pressure bypass valve；47- first clip；48- second clip；49-
3rd pressure transducer；50- catch basin heat insulation wall；51- blowoff valve.
Specific embodiment
Below against accompanying drawing, by the description to embodiment, for example involved to the specific embodiment of the present invention is each
Mutual alignment between the shape of component, construction, each several part and annexation, the effect of each several part and operation principle etc. are made into one
The detailed description of step.
Embodiment 1:
As shown in Figure 1: the double cold handpiece Water Chilling Units of the integral type of the present embodiment are located in an outer container 30, including by being sequentially connected in series
The closed cryogenic cycles that compressor 1 together, oil eliminator 2, double cool condenser 3, expansion throttling device 4, vaporizer 5 are constituted
System；It is provided with freezing water circle device 6 between the import and export of described vaporizer 5；It is critical only that described pair of cool condenser 3 includes
Catch basin 18 and spray equipment 22；Described spray equipment 22 passes through to spray water-circulating pump 20 and the first water treatment facilities 21 and polywater
Pond 18 communicates, and is sequentially provided with cooling coil 14, homogenizing plate 15, filler 16, catch basin 18, double cool condensers 3 under spray equipment 22
Top be provided with cooling blower 19, be sequentially provided with precooler 13, water collection device 17 below cooling blower 19；Described catch basin 18 is furnished with
First automatic water-replenishing device 23, overflow pipe 24, automatic sewage discharging device 25, the dirty device 26 of online suction；One end of described precooler 13 with
The gas outlet of oil eliminator 2 is connected, and the other end is connected with expansion throttling device 4 by cooling coil 14.
Further, it is serially connected with device for drying and filtering 9, liquid-sighting glass between described pair of cool condenser 3 and expansion throttling device 4
10.
Specifically, the air vent of described compressor 1 is connected with the air inlet of oil eliminator 2, the going out of described oil eliminator 2
Hydraulic fluid port is connected with the oil-in of compressor 1 by oil return apparatus, and described oil return apparatus are by the oil strainer 7 connected and oil return electricity
Magnet valve 8 is constituted；The gas outlet of described oil eliminator 2 is connected with the entrance of double cool condensers 3, and the outlet of double cool condensers 3 is passed through
Device for drying and filtering 9, liquid-sighting glass 10, expansion throttling device 4 are connected with the entrance of described vaporizer 5, and described vaporizer 5 exports and pressure
The air entry of contracting machine 1 is connected, and the outlet of described compressor 1 is connected with the entrance of compressor 1 by an injection oil return device, institute
State injection oil return device to be made up of the injection oil return solenoid valve 11 connected and injector 12, described injector 12 and vaporizer 5
Oil return pipe is connected.
The operation principle of the double cold handpiece Water Chilling Units of above-mentioned integral type is as follows: the liquid refrigerant in vaporizer 5 absorbs heat, steams
Sending out is gaseous refrigerant, enters in compressor 1 by the air entry of compressor 1 and becomes gases at high pressure, is then discharged out to separating of oil
Carry out Oil-gas Separation, the gases at high pressure after oil eliminator 2 Oil-gas Separation enter double cool condensers 3 and are condensed into height in device 2
The liquid refrigerant of pressure, is then changed into low-pressure, liquid refrigerant and returns in this vaporizer 5 through expansion throttling device 4, above
Process circularly cooling again and again.
Oil return solenoid valve 8 and compressor 1 with opening with pass, can by control this oil return solenoid valve 8 be turned on and off
Control oil return work；And oil strainer 7 can filter the impurity in return line, prevent pipeline blockage it is ensured that oil enters compression
Inside machine 1, thus extending the service life of this compressor 1.Can be by controlling the injection oil return electromagnetism in injection oil return device
Being turned on and off of valve 11 to control injection oil return to work, and injector 12 is the system using compressor 1 exhaust end elevated pressures
Refrigerant gas suck vaporizer 5 mesolow freezing oil in injector 12, return to the suction end of compressor 1, reach back after mixing
The purpose of oil.
Spray water-circulating pump 20 draws water from catch basin 18 and sends into spray equipment 22, spray through the first water treatment facilities 21
Device 22 will spray the thin water film to the surface of cooling coil 14 to form continuous uniform for the Water spray, for compression in cooling coil 14
The high-temperature high-pressure refrigerant that machine 1 is discharged after precooler 13 cooling, cooling coil 14 is outer to be thin water film and cooling blower the last 19
Urgent convection current cooling air from top to bottom, the cold-producing medium in cooling coil 14 is carried out hot wet friendship by this thin water film and cooling air
Change；Unevaporated shower water uniformly flows into filler 16 through homogenizing plate 15, and the cooling air flowing through with side is in filler 16
Carry out heat exchange, cooling blower 19 by cooling coil 14 and filler 16 saturated moist air extract out, and sequentially pass through water collection device 17,
Carry out heat exchange with the high-temperature high-pressure refrigerant in precooler 13 after precooler 13, then enter air from top cooling blower 19 outlet
In；Shower water after cooled enters in catch basin 18, then proceeds to circulate through spray water-circulating pump 20, in condensation process
The water evaporating is given to supplement by the first automatic water-replenishing device 23 automatically；Cooling coil 14 outlet and expansion throttling device 4 entrance
It is connected.Cooling coil 14 and spray is entered back into because the high-temperature high-pressure refrigerant that compressor 1 is discharged first passes through after precooler 13 cooling
Water drenching and cooling air carry out hot and humid area, hence in so that condensation temperature is lower, heat exchange efficiency is higher.Set in double cool condensers 3
Some precoolers 13, the first water treatment facilities 21, the dirty device 26 of online suction and automatic sewage discharging device 25 are equivalent to cold to this pair solidifying
Device 3 has carried out online quadruple antiscale, scale removal measure.
Further, described spray water-circulating pump 20 is furnished with electric heater 44；Described catch basin 18 is furnished with electric heater unit
38 and catch basin heat insulation wall 50.When outside air temperature is less than setting value, the electric heater on spray water-circulating pump 20 can be controlled
44 are heated with the electric heater unit 38 in catch basin 18, in order to avoid making water freeze and then damage machine because ambient temperature is too low
Group；Wherein catch basin heat insulation wall 50 ensure that in catch basin 18, spray water temperature will not too fast be lost, and serves good energy-conservation effect
Really, it is achieved thereby that year round cooling function.
Further, described freezing water circle device 6 includes chilled water circulating pump and the check valve 33 being cascaded, and
Between the import and export of described freezing water circle device 6, parallel pipeline is provided with self-operated type differential-pressure bypass valve 46；Described chilled water follows
Between the import and export of loop device 6, series pipe is provided with spiral degassing scummer 27, the second water treatment facilities 31 and online glueballs
Cleaning device 32.The Main Function of above-mentioned freezing water circle device 6 is by the chilled water after release heat cooling in vaporizer 5
It is transported to user side, self-operated type differential-pressure bypass valve 46 can keep the pressure reduction between the water-in and water-out mouth of pipe constant, and check valve 33 can be kept away
The refluence of liquid of circulating in the runner pipe exempting to freeze water circle device 6.Above-mentioned spiral degassing scummer 27, the second water treatment facilities
31 and online ball cleaning apparatus 32 online triple filter, wherein spiral shell have been carried out to the runner pipe of this freezing water circle device 6
Rotation degassing scummer 27 can also effectively remove air air mass and microbubble in chilled water system, has self-bleeding effect.
Further, described freezing water circle device 6 import and export between series pipe on be additionally provided with blowoff valve 51,
Second automatic water-replenishing device 35 and level pressure expansion drum 34, described level pressure expansion drum 34 is provided with adjustable safety valve 37.Above-mentioned fixed
Compression swelling tank 34 is used for freezing the effect playing compensator or trimmer pressure fluctuation in water circle device 6 and absorbing part feedwater, for eliminating work
Make the partial volume that medium increases because of temperature change；And adjustable safety valve 37 is used for discharging the pressure in chilled water system；Row
Dirty valve 51 is used for discharging the water in chilled water system；Above three part all plays the effect ensureing system safety operation.
The import of freezing water circle device 6 is connected with the outlet of user side by the second clip 48, freezing water circulation dress
Put 6 outlet to be connected with the water inlet of user side by the first clip 47, described second clip 48, the first clip 47 have antidetonation
Dynamic, resisted shrinkage and the ability of expansion, compared with welding and flange connection, can improve the stability of pipe-line system, and connect behaviour
Make simple, be easy to follow-up maintenance, and man-hour can be saved.
In above-mentioned freezing water circle device 6, the process of circulation of circulation liquid is: unit chilled water water inlet is expanded by level pressure
Tank 34 is through spiral degassing scummer 27, chilled water circulating pump, the second water treatment facilities 31, online ball cleaning apparatus 32, steaming
Send out device 5 and check valve 33 is connected to the outlet of chilled water.
Further, this pair of cold handpiece Water Chilling Units are provided with control device 28, and the water inlet of described freezing water circle device 6 sets
There are second pressure sensor 36, second temperature sensor 40；The water outlet of described freezing water circle device 6 is provided with first pressure
Sensor 45, three-temperature sensor 43, discharge switch 41, frost prevention switch 42；Described oil eliminator 2 and double cool condensers 3
Between be provided with the 3rd pressure transducer 49；It is provided with the first temperature sensing between described spray equipment 22 and the first water treatment facilities 21
Device 39；Described control device 28 respectively with first pressure sensor 45, second pressure sensor 36, the 3rd pressure transducer 49,
First temperature sensor 39, second temperature sensor 40, three-temperature sensor 43, discharge switch 41, frost prevention switch 42, cold
Jelly water-circulating pump 29, spray water-circulating pump 20, cooling blower 19 are connected with compressor 1.Control device 28 is except conventional control
Compressor 1 is pressed outside load start and stop, can be according to second pressure sensor 36, first pressure sensor 45, second temperature sensor
40, the signal of three-temperature sensor 43 and discharge switch 41, frost prevention switch 42 transmission, to opening of chilled water circulating pump 29
Stop being controlled with protection, with the demand of adaptive system refrigeration duty change.Furthermore, it is possible to according to the 3rd pressure transducer 49 and
The signal of one temperature sensor 39 transmission, the start and stop to spray water-circulating pump 20 and cooling blower 19 are controlled, with adaline
The annual operating mode of group is run.
The invention has the advantages that compared with the prior art: degree of integration is high, thus compact conformation, easy for installation,
Energy-efficient and applied widely.The double cold handpiece Water Chilling Units of the integral type of the present invention are by double cool condensers, collection kind of refrigeration cycle, freezing
Water system, water treatment system, centralized control system become one, alternative routine machine room and integral installation in outdoor.This machine
Group without Special machine room, without cooling tower, no-cooling-water conveying power consumption so that volume is less, in hgher efficiency, compact conformation, make
With life-span length, conveniently install and maintenance, and save floor space, shortening construction period and the reduction investment of equipment and run into
This；Be widely portable to various industry and commerce air adjustments or technique chilled water preparation, be particularly suited for low wet bulb temperature area and
The air-conditioning of year round cooling or technique occasion.
It is provided with precooler 13, the first water treatment facilities in double cool condensers 3 of the double cold handpiece Water Chilling Units of the integral type of the present invention
21st, online suction dirt device 26 and automatic sewage discharging device 25, are processed to water quality has been carried out with online quadruple；It is mounted with chilled water system
Spiral degassing scummer 27, the second water treatment facilities 31, online ball cleaning apparatus 32, have carried out triple process to water quality；Cause
This can remain the cleannes of heat exchanger tube in heat exchanger, without stop cleaning heat exchanger, thus easy to use, and can be true
Protect optimal heat-transfer effect, the service life of heat exchanger tube can be extended, reduce labor intensity, increase economic benefit.
Claims (5)
1. a kind of double cold handpiece Water Chilling Units, including by the compressor being sequentially connected in series together, oil eliminator, double cool condenser, expansion
The closed cryogenic cycles system that throttling arrangement, vaporizer are constituted；It is provided with freezing water circulation between the import and export of described vaporizer
Device；Described pair of cool condenser includes catch basin and spray equipment；Described spray equipment passes through to spray water-circulating pump and the first water
Processing meanss are communicated with catch basin, are sequentially provided with cooling coil, homogenizing plate, filler, catch basin, double cool condensers under spray equipment
Top be provided with cooling blower, be sequentially provided with precooler, water collection device below cooling blower；Described catch basin is furnished with first and automatically mends
Water installations, overflow pipe, automatic sewage discharging device, the dirty device of online suction；One end of described precooler is connected with the gas outlet of oil eliminator,
The other end is connected with expansion throttling device by cooling coil；Described freezing water circle device includes the chilled water being cascaded
Between circulating pump and check valve, and the import and export of described freezing water circle device, parallel pipeline is provided with self-operated type pressure reduction bypass
Valve；It is characterized in that described freezing water circle device import and export between series pipe be provided with spiral degassing scummer, second
Water treatment facilities and online ball cleaning apparatus；Also set on series pipe between the import and export of described freezing water circle device
There are blowoff valve, the second automatic water-replenishing device and level pressure expansion drum, described level pressure expansion drum is provided with adjustable safety valve.
2. double cold handpiece Water Chilling Units according to claim 1 are it is characterised in that described pair of cool condenser and expansion throttling device
Between be serially connected with device for drying and filtering, liquid-sighting glass.
3. double cold handpiece Water Chilling Units according to claim 2 are it is characterised in that the air vent of described compressor and oil eliminator
Air inlet be connected, the oil-out of described oil eliminator is connected with the oil-in of compressor by oil return apparatus, described oil return
Device is made up of the oil strainer connected and oil return solenoid valve；The entrance phase of the gas outlet of described oil eliminator and double cool condensers
Even, the outlet of double cool condensers is connected with the entrance of described vaporizer by device for drying and filtering, liquid-sighting glass, expansion throttling device,
Described evaporator outlet is connected with the air entry of compressor, and an injection oil return device and compression are passed through in the outlet of described compressor
The entrance of machine is connected, and described injection oil return device is made up of the injection oil return solenoid valve connected and injector, described injector with
The oil return pipe of vaporizer is connected.
4. double cold handpiece Water Chilling Units according to claim 1 are it is characterised in that described spray water-circulating pump is furnished with electric heater；
Described catch basin is furnished with electric heater unit and catch basin heat insulation wall.
5. double cold handpiece Water Chilling Units according to claim 1 are it is characterised in that this pair of cold handpiece Water Chilling Units are provided with control device, institute
The water inlet stating freezing water circle device is provided with second pressure sensor, second temperature sensor；Described freezing water circulation dress
The water outlet put is provided with first pressure sensor, three-temperature sensor, discharge switch, frost prevention switch；Described separating of oil
It is provided with the 3rd pressure transducer between device and double cool condenser；It is provided with first between described spray equipment and the first water treatment facilities
Temperature sensor；Described control device respectively with first pressure sensor, second pressure sensor, the 3rd pressure transducer,
One temperature sensor, second temperature sensor, three-temperature sensor, discharge switch, frost prevention switch, chilled water circulating pump,
Spray water-circulating pump, cooling blower are connected with compressor.
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| CN201410845061.8A CN104457002B (en) | 2014-12-31 | 2014-12-31 | Integrated double-cooling water chilling unit |
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| CN201410845061.8A CN104457002B (en) | 2014-12-31 | 2014-12-31 | Integrated double-cooling water chilling unit |
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| CN104457002A CN104457002A (en) | 2015-03-25 |
| CN104457002B true CN104457002B (en) | 2017-01-25 |
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| CN105020925B (en) * | 2015-08-18 | 2018-01-12 | 重庆达孚制冷设备有限责任公司 | One kind uses evaporative condenser integration water chiller-heater unit |
| CN105258405B (en) * | 2015-09-18 | 2017-09-19 | 浙江万享科技股份有限公司 | A kind of double-cooling condenser |
| CN105180541B (en) * | 2015-10-14 | 2017-11-17 | 珠海格力电器股份有限公司 | Injection method for controlling oil return, device and the air-conditioning system of air-conditioning system |
| CN106839518A (en) * | 2017-03-21 | 2017-06-13 | 昆山台佳机电有限公司 | The double cold and hot pump assemblys of integral type |
| CN108413566A (en) * | 2018-04-19 | 2018-08-17 | 浙江大冲能源科技有限公司 | The booting energy-saving control system of air conditioner water cold group when a kind of external world's low humidity ball |
| CN108759206B (en) * | 2018-06-15 | 2021-02-12 | 重庆美的通用制冷设备有限公司 | Water chilling unit and purification oil return control method thereof |
| CN110131820A (en) * | 2019-05-15 | 2019-08-16 | 格力电器（合肥）有限公司 | The apparatus of air conditioning |
| CN112903029B (en) * | 2021-03-04 | 2021-11-16 | 深圳市兄弟制冰***有限公司 | System and method for online monitoring of evaporation temperature and water flow of low-temperature water chiller |
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