CN104390394B - A kind of low-temperature insulation type dry evaporator and control method thereof - Google Patents
A kind of low-temperature insulation type dry evaporator and control method thereof Download PDFInfo
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- CN104390394B CN104390394B CN201410776032.0A CN201410776032A CN104390394B CN 104390394 B CN104390394 B CN 104390394B CN 201410776032 A CN201410776032 A CN 201410776032A CN 104390394 B CN104390394 B CN 104390394B
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- Prior art keywords
- temperature
- housing
- dry evaporator
- low
- insulation type
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Classifications
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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
- F25B39/02—Evaporators
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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
- F25B2339/02—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
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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
- 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
- F25B2400/01—Heaters
-
- 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
- F25B2600/00—Control issues
- F25B2600/21—Refrigerant outlet evaporator temperature
Abstract
The invention discloses a kind of low-temperature insulation type dry evaporator and control method thereof, including housing, many heat exchanger tubes are installed in described housing, heat exchanger tube forms the tube side as refrigerant passage, the shell side of chilled water passage is then formed outside heat exchanger tube in housing, described housing exterior walls is provided with the heater for heating frozen water, and is provided with the temperature threshold according to setting and starts or close the temperature detect switch (TDS) of heater.The icing phenomenon in dry evaporator is avoided in present invention realization after unit quits work, it is ensured that dry evaporator shell-side temperature is maintained at more than 2 DEG C less than 5 DEG C, and present configuration is simple, consumes energy low.
Description
Technical field
The present invention relates to the field of heat exchangers of nuclear power air conditioning system, particularly relate to a kind of low-temperature insulation type dry evaporator and
Its control method.
Background technology
" Nuclear Safety planning (2011-2020) " and " nuclear power Long-and Medium-term Development planning (2011-2020) " (2012
Executive Meeting of the State Council on October 24, is again discussed and passes through to implement) " new nuclear power unit must accord with to have explicitly pointed out China
Close three generations's safety criterion ".The topmost feature of three generations's nuclear power technology is the design concept that security system uses " passive ".
Passive nuclear plant central chilled water system (VWS) is nuclear power plant's air conditioning system nucleus equipment with cooling by wind
One of, unit require whole year operation refrigeration, for nuclear power plant's air-treatment unit, modular cooling unit and with chilled water for cooling
The process equipment of medium provides the chilled water of 4.4 DEG C.Passive nuclear plant standard site parameters requires minimum safe environment temperature
Degree is-40 DEG C, i.e. unit requires the normal cooling activation of energy under-40 DEG C of environmental working conditions, and can stable operation.
At present, on market, cooling by wind minimum refrigerating operaton ambient temperature is-19 DEG C, not yet has and can meet-40 DEG C
The product of ambient temperature refrigerating operaton.And the vaporizer for the cooling by wind (refrigeration unit) of low temperature environment is mostly
Dry evaporator (horizontal pipe shell type structure), tube side walked by cold-producing medium, and chilled water walks shell side, the insulation that outer surface parcel 20mm is thick
Cotton.When cooling by wind is shut down at-40 DEG C of low temperature environments, dry evaporator can be influenced by ambient temperature and make chilled water tie
Ice, the heat exchanger tube in harm housing, heat exchanger tube can be caused time serious to rupture, thus cause vaporizer to lose efficacy.
The open a kind of dry evaporator of the Chinese patent " dry evaporator " of Application No. 200620051158.2 includes system
Cryogen pipeline and cooling water ring road, in distance cold-producing medium enters the water of dry evaporator inner refrigerant pipeline one end 10 ~ 30mm,
Adding a temperature sensor, it is the water temperature of close cold-producing medium upstream end in dry evaporator being detected, once detects temperature
Degree is less than when arranging value, and controller controls compressor and quits work, and electromagnetic valve disconnects the feed lines of cut-out cold-producing medium and avoids
Dry evaporator freezes.The dry evaporator that this patent provides is to apply in general field, is not suitable for the work of-40 DEG C of low temperature
Environment, and existing technology is not directed to solve the ice formation issues of dry and wet vaporizer under the working environment of-40 DEG C of low temperature.
The problem that existing patent is to be solved is because coolant makes chilled water cooling freeze, and then freezing vaporizer, so
The technical scheme used is exactly to close coolant when monitoring chilled water temperature and being too low, and existing patent includes other prior aries
Be not given and cause because ambient temperature is too low chilled water to freeze and then any solution of freezing vaporizer, therefore
And it is badly in need of developing a kind of effective technology scheme overcoming external temperature too low and chilled water in vaporizer is frozen.
Summary of the invention
It is an object of the invention to overcome the deficiencies in the prior art, it is provided that a kind of low-temperature insulation type dry evaporator, it is ensured that
When shutting down under the low temperature environment of-40 DEG C, will not be influenced by ambient temperature and make chilled water freeze, and then protect the whole refrigeration to be
System, another object of the present invention is to provide the control method of a kind of described low-temperature insulation type dry evaporator.
The above-mentioned purpose of the present invention is achieved by following technical solution:
A kind of low-temperature insulation type dry evaporator, including housing, is provided with many heat exchanger tubes in described housing, heat exchange is tubular
Become the tube side as refrigerant passage, outside the heat exchanger tube in housing, then form the shell side of chilled water passage, described housing exterior walls
It is provided with the heater for heating frozen water, and is provided with the temperature threshold according to setting and starts or close the temperature of heater
Control switch.Described temperature threshold is 2 ~ 5 DEG C.Dry evaporator of the present invention is for refrigeration machines such as nuclear power air conditioning system main frames
In group, when refrigeration unit is shut down at-40 DEG C of low temperature environments, dry evaporator is made this vaporizer by ambient temperature effect
In chilled water water temperature drop, by adding heater at housing exterior walls so that the chilled water in dry evaporator will not produce
Life is freezed, and solves the problem that prior art exists.Described chilled water is clean fresh water.
Preferably, described heater is that housing exterior walls is tied with one or one or more electric-heating belt, described electric-heating belt
It is wound around in the shape of a spiral.Spiral wound makes homogeneous heating.
Further, described temperature detect switch (TDS) is 3, is respectively arranged near the water inlet end of described housing, water side and housing
Middle position.Described temperature detect switch (TDS) obtains enclosure interior temperature by setting up diverse location separately.
Described inner walls is interval with multiple deflection plate the most successively.Described polylith deflection plate makes chilled water flow produce rapids
Stream is to strengthen heat exchange.
The minimum temperature position of housing is located at by described temperature detect switch (TDS), and described minimum temperature position is that chilled water is through multiple foldings
The flow dead that stream plate is formed.Flow dead can be there is in current through deflection plate, in flow dead, when refrigeration unit is shut down,
Keeping dry evaporator chilled-water flow constant, but affected by low ambient temperature, in housing, flow dead chilled water temperature can enter
One step reduces, and therefore, is the position that the temperature of housing is minimum in the shell position near the chilled water flow dead.
Described hull outside cladding heat-preservation cotton.Described heat-preservation cotton can play to assist insulation and be easy to electric-heating belt and carry out standard
The effect really controlled.Preferably, described heat-preservation cotton is the rubber and plastic heat-preservation cotton that 60mm is thick.
Further, housing two ends are provided with tube sheet, and the outside of tube sheet is respectively fixedly connected with left end cap and right end cap, described
Left end cap is provided with coolant import and refrigerant exit.Water inlet it is provided with, on the upside of the described housing other end on the downside of described shell one end
It is provided with outlet.Water inlet is that its end is provided with by the water pipe connected with described housing drawn on described housing with outlet
Adpting flange, for connecting water pipe.Coolant is entered each heat exchanger tube in housing by coolant import, enters with chilled water in housing
Flowed out by refrigerant exit after row heat exchange；Chilled water is entered housing by water inlet, and carries out after heat exchange from outlet stream with heat exchanger tube
Go out.
Described water outlet is provided with housing temperature sensor.Described housing temperature sensor is for detecting the freezing in housing
The temperature of water.
The lower section of described housing is provided with the base for supporting housing, and described base includes two symmetrically arranged base lists
Unit, each base unit includes support plate, connecting plate and base plate, and described support plate is curved fits with housing exterior walls, described
Two the connecting plate upper ends holding surface and be arranged in parallel are fixing to be connected, and described connecting plate lower end is fixing with base plate to be connected, the described end
On plate, symmetry has the installing hole for installing bolt.
The method of controlling of a kind of low-temperature insulation type dry evaporator, after refrigeration unit is shut down, when temperature detect switch (TDS) detects dry
< closing when 2 DEG C, heater is started working heated shell for chilled water water temperature in formula vaporizer；When temperature detect switch (TDS) detects dry
Water temperature in formula vaporizer > 5 DEG C time disconnect, then heater stop work.
Further, when refrigeration unit is shut down, it is cold that housing temperature sensor detects in described dry evaporator housing
< 2 DEG C and continue for 10 minutes, then output alarm signal, prompting heater breaks down, and needs repairing to freeze the temperature of water.
Further, freezing unit, normally working when, arranges heating-stopping apparatus work, though electric-heating belt
Temperature detect switch (TDS) Guan Bi all cannot start heater.Housing temperature sensor also cannot work, and does not have alarm signal output, with
Exempt from heating devices heat housing and cause the impact of chilled water leaving water temperature and the most energy-conservation.
Specifically, described electric-heating belt power demand calculates according to following methods:
First housing thermal loss Qp=Δ T × Ki × Qa is calculated；
In formula: Δ T is the temperature difference (=Tm-Ta) that housing maintains between temperature Tm and minimum ambient temperature Ta；
Ki insulation material coefficient, tables look-up according to heat-preservation cotton material；
Qa heat loss factor, tables look-up according to housing outer diameter and heat-preservation cotton thickness；
Secondly selecting the power output Qh of accompanying-heat cable from power-temperature characteristic curve, its value should equal to or more than shell
The thermal loss Qp of body.
Compared with prior art, beneficial effects of the present invention is as follows:
Being turned on and off of the heater that the present invention is arranged on housing by temperature detect switch (TDS) control, realizes at unit
Avoid the icing phenomenon in dry evaporator after quitting work, it is ensured that dry evaporator shell-side temperature be maintained at more than 2 DEG C 5 DEG C with
Under, present configuration is simple, consumes energy low.
Accompanying drawing explanation
Fig. 1 show the structural schematic block diagram of refrigeration unit；
Fig. 2 show perspective view of the present invention；
Fig. 3 show the dry evaporator side broken section structural representation shown in Fig. 2；
Fig. 4 show flow dead schematic diagram during chilled water flowing in dry evaporator.
Wherein, 1, housing；2, heat exchanger tube；3, heat-preservation cotton；4, electric-heating belt；5, base unit；11, tube sheet；12, left end
Lid；13, right end cap；14, water inlet；15, outlet；16, temperature detect switch (TDS)；17, deflection plate；51, gripper shoe；52, connecting plate；
53, base plate；100, dry evaporator；121, coolant import；122, refrigerant exit.
Detailed description of the invention
Below in conjunction with Figure of description and specific embodiment the present invention made and elaborating further, but embodiment is also
The present invention is not limited in any form.
Embodiment 1
As it is shown in figure 1, refrigeration unit includes control system and passes sequentially through compressor that pipeline connects, condenser, swollen
Swollen valve and dry evaporator, the refrigerant exit end of described dry evaporator is connected by pipeline with the arrival end of described compressor.
Described control system is for controlling the operation of refrigeration unit；Described compressor is for by low-temp low-pressure gaseous coolant (being also snow kind)
Boil down to High Temperature High Pressure coolant；Described condenser is for by the High Temperature High Pressure gas discharged by described compressor with heat exchange with outside
The cooling of state coolant becomes cryogenic high pressure liquid or gas-liquid mixture；Described expansion valve is for the liquid discharged by condenser or gas-liquid
The cryogenic high pressure coolant blood pressure lowering of admixture, described dry evaporator is used for making the heat absorption of low-temp low-pressure liquid refrigerants be vaporizated into low temperature
Low-pressure gaseous coolant.In figure, arrow show the direction of coolant flowing.
Such as Fig. 2, shown in 3, described dry evaporator 100, cylindrical including housing 1(), be arranged in housing 1 many
Heat exchanger tube 2, housing 1 two ends are provided with tube sheet 11, and the outside of tube sheet 11 is respectively fixedly connected with left end cap 12 and right end cap 13, a described left side
End cap is provided with coolant import 121 and refrigerant exit 122, and coolant import is positioned at lower section, and described housing is provided with water inlet 14 and goes out
The mouth of a river 15, water inlet and outlet are that its end is provided with connection by the water pipe connected with described housing drawn on described housing
Flange, for connecting water pipe, water inlet 14 is positioned at below left side, and outlet is positioned at above right side, and outside described housing 1, cladding is protected
The cotton 3(of temperature, for ease of diagram, only illustrates in figure that part heat-preservation cotton, actually heat-preservation cotton are coated with whole dry evaporator), described shell
Being tied with electric-heating belt 4 on body 1 outer wall, described electric-heating belt 4 is wound around in the shape of a spiral, so makes being uniformly heated of housing.
Described housing 1 is provided with the electric-heating belt temperature detect switch (TDS) 16 for controlling described electric-heating belt 4.Coolant is entered by coolant import 121
Enter each heat exchanger tube in housing, flowed out by refrigerant exit 122 after carrying out heat exchange with chilled water in housing；Chilled water is by intaking
Mouthfuls 14 enter housings, and flow out from outlet 15 after carrying out heat exchange with heat exchanger tube.
Specifically, the position of minimum temperature of housing is located at by described electric-heating belt temperature detect switch (TDS) 16.As shown in Figure 4, housing 1
Inside being provided with some deflection plates 17 makes chilled water flow turbulization to strengthen heat exchange, but current can exist stream when deflection plate 17
Dynamic dead band, in flow dead, when refrigeration unit is shut down, keeps dry evaporator 100 chilled-water flow constant, but low by environment
Temperature impact, in housing 1, flow dead chilled water temperature can reduce further, therefore, near chilled water flow dead
Shell position is the position that the temperature of housing is minimum, and this position is located at by electric-heating belt temperature detect switch (TDS) 16.
Specifically, described electric-heating belt temperature detect switch (TDS) 16 has 3, is respectively arranged near the water inlet end of described housing, water outlet
Position in the middle of end and housing.
Further, described housing 1 is provided with housing temperature sensor at outlet 15, when refrigeration unit is shut down
Time, housing temperature sensor 18 detect the chilled water (fresh water) in described dry evaporator 100 housing 1 temperature < 2 DEG C continue
10 minutes, then output alarm signal, prompting electric-heating belt 4 breaks down, and needs repairing or changes.
Freezing unit, normally working when, arranges stopping electric-heating belt 4 and works, though electric-heating belt temperature detect switch (TDS) 16
Guan Bi all cannot start electric-heating belt 4.Housing temperature sensor 18 also cannot work, and does not have alarm signal output, Yi Mian electricity
Heating tape 4 heated shell 1 causes the impact of chilled water leaving water temperature and the most energy-conservation.
Specifically, described heat-preservation cotton is the rubber and plastic heat-preservation cotton that 60mm is thick.Auxiliary insulation can be played and be easy to electric-heating belt 4
The effect accurately controlled.
The lower section of housing 1 is provided with the base for supporting housing, and base includes two symmetrically arranged base units 5, often
Individual base unit 5 includes support plate 51, connecting plate 52 and base plate 53, and support plate 51 is curved, recessed upper surface and housing 1
Outer wall is fitted, and can stably hold whole housing 1, and support plate 51 lower surface is fixing with connecting plate 52 upper end to be connected, connecting plate 52
Lower end is fixing with base plate 53 to be connected, and on base plate 53, symmetry has the installing hole for installing bolt.
A kind of control method for above-described dry evaporator, after refrigeration unit is shut down, when temperature detect switch (TDS) 16 is examined
< closing when 2 DEG C, electric-heating belt 4 is started working heated shell to measure chilled water water temperature in dry evaporator 100；When temperature control is opened
Close and 16 the water temperature in dry evaporator detected > 5 DEG C time disconnect, then electric-heating belt 4 quits work.
Further, when refrigeration unit is shut down, it is cold that housing temperature sensor detects in described dry evaporator housing
< 2 DEG C and continue for 10 minutes, then output alarm signal, prompting electric-heating belt 4 breaks down, and needs repairing to freeze the temperature of water.
Specifically, described electric-heating belt 4 power demand calculates according to following methods:
First housing thermal loss Qp=Δ T × Ki × Qa is calculated；
In formula: Δ T is the temperature difference (=Tm-Ta) that housing maintains between temperature Tm and minimum ambient temperature Ta；
Ki insulation material coefficient, tables look-up according to heat-preservation cotton material；
Qa heat loss factor, tables look-up according to housing outer diameter and heat-preservation cotton thickness；
Secondly selecting the power output Qh of accompanying-heat cable from power-temperature characteristic curve, its value should equal to or more than shell
The thermal loss Qp of body.
In above-mentioned control method, freezing unit, normally working when, arranges stopping electric-heating belt 4 and works, though electric
Heating tape temperature detect switch (TDS) 16 closes and all cannot start electric-heating belt 4.Housing temperature sensor 18 also cannot work, and does not have warning
Signal exports, in order to avoid electric-heating belt 4 heated shell 1 causes the impact of chilled water leaving water temperature and the most energy-conservation.
Claims (9)
1. a low-temperature insulation type dry evaporator, including housing, is provided with many heat exchanger tubes in described housing, heat exchanger tube is formed
As the tube side of refrigerant passage, then form the shell side of chilled water passage outside the heat exchanger tube in housing, it is characterised in that described
Housing exterior walls is provided with the heater for heating frozen water, and is provided with the temperature threshold according to setting and starts or close heating
The temperature detect switch (TDS) of device；
After refrigeration unit is shut down, when the chilled water water temperature during temperature detect switch (TDS) detects dry evaporator < closes when 2 DEG C, adds hot charging
Put heated shell of starting working；Water temperature when during temperature detect switch (TDS) detects dry evaporator > 5 DEG C time disconnect, then heater stops
Only work.
Low-temperature insulation type dry evaporator the most according to claim 1, it is characterised in that described heater is housing exterior walls
Being tied with one or more electric-heating belt, described electric-heating belt is wound around in the shape of a spiral.
Low-temperature insulation type dry evaporator the most according to claim 1, it is characterised in that described inner walls the most successively between
Every being provided with multiple deflection plate, described deflection plate makes chilled water turbulization.
Low-temperature insulation type dry evaporator the most according to claim 1, it is characterised in that described temperature detect switch (TDS) is 3, respectively
It is provided close to the position in the middle of the water inlet end of described housing, water side and housing.
Low-temperature insulation type dry evaporator the most according to claim 3, it is characterised in that housing is located at by described temperature detect switch (TDS)
Minimum temperature position, described minimum temperature position is the flow dead that chilled water is formed through multiple deflection plates.
Low-temperature insulation type dry evaporator the most according to claim 1, it is characterised in that described hull outside cladding insulation
Cotton.
Low-temperature insulation type dry evaporator the most according to claim 4, it is characterised in that be provided with housing temperature at described water side
Degree sensor.
The control method of low-temperature insulation type dry evaporator the most according to claim 1, it is characterised in that when refrigeration unit is stopped
During machine, housing temperature sensor detect the chilled water in described dry evaporator housing temperature < 2 DEG C and continue for 10 minutes,
Then output alarm signal, prompting heater breaks down, and needs repairing.
The control method of low-temperature insulation type dry evaporator the most according to claim 2, it is characterised in that described electric-heating belt
Power demand calculates according to following methods:
First housing thermal loss Qp=Δ T × Ki × Qa is calculated；Secondly from power-temperature characteristic curve, select accompanying-heat cable
Power output Qh, its value should be equal to or more than the thermal loss Qp of housing；
Wherein, Δ T is the temperature difference (=Tm-Ta) that housing maintains between temperature Tm and minimum ambient temperature Ta；Ki insulation material system
Number, tables look-up according to heat-preservation cotton material；Qa heat loss factor, tables look-up according to housing outer diameter and heat-preservation cotton thickness.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410776032.0A CN104390394B (en) | 2014-12-17 | 2014-12-17 | A kind of low-temperature insulation type dry evaporator and control method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410776032.0A CN104390394B (en) | 2014-12-17 | 2014-12-17 | A kind of low-temperature insulation type dry evaporator and control method thereof |
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| CN104390394A CN104390394A (en) | 2015-03-04 |
| CN104390394B true CN104390394B (en) | 2016-10-26 |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104848604A (en) * | 2015-04-16 | 2015-08-19 | 泰州格灵电器制造有限公司 | Evaporator for solar heat pump |
| CN111714274A (en) * | 2020-05-29 | 2020-09-29 | 汤聿修 | Head-mounted equipment for fever and cooling of children |
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|---|---|---|---|---|
| JP2001082824A (en) * | 1999-09-10 | 2001-03-30 | Sanyo Electric Co Ltd | Absorption refrigerating machine |
| CN101033901A (en) * | 2007-04-18 | 2007-09-12 | 王全龄 | Water source heat pump evaporator suitable for low-temperature water source |
| CN201748826U (en) * | 2010-08-20 | 2011-02-16 | 上海瀚艺冷冻机械有限公司 | Shell and tube heat exchanger |
| CN102095286B (en) * | 2011-01-25 | 2012-09-05 | 清华大学 | Absorption heat pump evaporator structure for recovering low-pressure vapor residual heat |
| WO2013023552A1 (en) * | 2011-08-18 | 2013-02-21 | Wang Quanling | Ultra-low temperature water evaporator and thermal pump aggregate having same |
| CN204313537U (en) * | 2014-12-17 | 2015-05-06 | 广东申菱空调设备有限公司 | A kind of low-temperature insulation type dry evaporator |
-
2014
- 2014-12-17 CN CN201410776032.0A patent/CN104390394B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001082824A (en) * | 1999-09-10 | 2001-03-30 | Sanyo Electric Co Ltd | Absorption refrigerating machine |
| CN101033901A (en) * | 2007-04-18 | 2007-09-12 | 王全龄 | Water source heat pump evaporator suitable for low-temperature water source |
| CN201748826U (en) * | 2010-08-20 | 2011-02-16 | 上海瀚艺冷冻机械有限公司 | Shell and tube heat exchanger |
| CN102095286B (en) * | 2011-01-25 | 2012-09-05 | 清华大学 | Absorption heat pump evaporator structure for recovering low-pressure vapor residual heat |
| WO2013023552A1 (en) * | 2011-08-18 | 2013-02-21 | Wang Quanling | Ultra-low temperature water evaporator and thermal pump aggregate having same |
| CN204313537U (en) * | 2014-12-17 | 2015-05-06 | 广东申菱空调设备有限公司 | A kind of low-temperature insulation type dry evaporator |
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| CN104390394A (en) | 2015-03-04 |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
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| CB02 | Change of applicant information |
Address after: 528313 Shunde City, Foshan province Chencun town machinery and equipment Park, No. ten, No. Road, No. 8 Applicant after: GUANGDONG SHENLING AIR-CONDITIONING EQUIPMENT CO., LTD. Address before: 528313 Shunde City, Foshan province Chencun town machinery and equipment Park, No. ten, No. Road, No. 8 Applicant before: Guangdong Shenling Air Conditioning Equipment Co., Ltd. |
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| COR | Change of bibliographic data | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |