CN104019585B - Flooded evaporator and full-liquid type air-conditioner set - Google Patents
Flooded evaporator and full-liquid type air-conditioner set Download PDFInfo
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- CN104019585B CN104019585B CN201410287000.4A CN201410287000A CN104019585B CN 104019585 B CN104019585 B CN 104019585B CN 201410287000 A CN201410287000 A CN 201410287000A CN 104019585 B CN104019585 B CN 104019585B
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Abstract
The invention discloses a kind of flooded evaporator and full-liquid type air-conditioner set, be positioned in the housing of flooded evaporator above heat-exchanging tube bundle and be provided with regenerator and gas-liquid separator, regenerator is provided with high pressure liquid refrigerant entrance and high pressure liquid refrigerant outlet, is provided with regenerator heat exchange tube device in regenerator; Gas-liquid separator is arranged at the downstream of regenerator, and the bottom of gas-liquid separator is provided with oil return opening, and the top of gas-liquid separator is provided with gas outlet; Full-liquid type air-conditioner set of the present invention comprises and is in turn connected to form the compressor of closed circuit, condenser, heating power expansion valve and flooded evaporator of the present invention by Trunk Line.Flooded evaporator of the present invention makes the degree of supercooling of high pressure liquid refrigerant increase simultaneously, and the degree of superheat of low side refrigerant saturated vapor increases, and heat exchange efficiency is high, and achieves effective oil return; Full-liquid type air-conditioner set systematic energy efficiency ratio of the present invention is high, low cost of manufacture, and whole air-conditioning unit structure is simply compact, takes up room little.
Description
Technical field
The present invention relates to air-conditioning technical field, the flooded evaporator particularly relating to a kind of air-conditioner set and the full-liquid type air-conditioner set applying this flooded evaporator.
Background technology
Flooded evaporator is the main building block of full-liquid type air-conditioner set, the structure of existing flooded evaporator is the housing of the tubular comprising horizontal setting, the lower space being positioned at housing is provided with heat-exchanging tube bundle, low pressure refrigerant import is provided with in the bottom of housing, this low pressure refrigerant import is used for being connected with the outlet of expansion valve, be provided with low pressure refrigerant outlet on the top of housing, the outlet of this low pressure refrigerant is used for being connected with the refrigerant air inlet of compressor.Existing full-liquid type air-conditioner set comprises and is in turn connected to form the compressor of closed circuit, condenser, electric expansion valve and flooded evaporator by Trunk Line, between compressor and condenser, be provided with gas-liquid separator, between condenser and electric expansion valve, be provided with regenerator.
Based on the flooded evaporator of existing structure, the high pressure liquid refrigerant carrying out condenser not easily obtains larger degree of supercooling in evaporimeter, the refrigerant vapour of low-pressure side is difficult to obtain the larger degree of superheat, thus use the air-conditioner set Energy Efficiency Ratio of this evaporimeter not high, electric expansion valve or liquid-level type throttling arrangement must be equipped with simultaneously, common heating power expansion valve can not meet its requirement, although electric expansion valve or liquid-level type throttling arrangement control accuracy high, but expensive, cause the manufacturing cost of whole air-conditioner set higher; The structure of existing flooded evaporator is simple, because not being provided with oil separating device, causing lubricating oil to float on flooded evaporator housing inner refrigerant liquid level and forming oil-enriched layer, very easily causing cold-producing medium liquid level to change, affect the ejecting scavenge return of unit, affect the lubrication of compressor further; Existing full-liquid type air-conditioner set is owing to adopting the flooded evaporator of existing structure, and thus the heat exchange efficiency of whole unit is not high, and systematic energy efficiency ratio is low; And be all arranged on closed circuit as independently parts due to gas-liquid separator, regenerator, make the huge structure of whole air-conditioner set, take up room larger.
Summary of the invention
First technical problem to be solved by this invention is: provide a kind of heat exchange efficiency high, and can realize the flooded evaporator of effective oil return.
Second technical problem to be solved by this invention is: provide a kind of heat exchange efficiency high, and the full-liquid type air-conditioner set of compact conformation.
For solving above-mentioned first technical problem about flooded evaporator, technical scheme of the present invention is: flooded evaporator, comprise the housing of the tubular of horizontal setting, lower space in described housing is provided with heat-exchanging tube bundle, the bottom of described housing is provided with low pressure refrigerant import, and the top of described housing is provided with low pressure refrigerant outlet;
The top being positioned at described heat-exchanging tube bundle in described housing is provided with regenerator, described regenerator is provided with the high pressure liquid refrigerant entrance for being connected with the refrigerant outlet of condenser and the high pressure liquid refrigerant for being connected with the refrigerant inlet of expansion valve exports, and is provided with regenerator heat exchange tube device in described regenerator;
The top of described heat-exchanging tube bundle is positioned at and the downstream of described regenerator is provided with gas-liquid separator in described housing, the refrigerant oil gas mixture entrance of described gas-liquid separator is corresponding with the refrigerant oil gas mixture exit position of described regenerator, the bottom of described gas-liquid separator is provided with oil return opening, the top of described gas-liquid separator is provided with gas outlet, and described gas outlet is corresponding with the described low pressure refrigerant exit position on described housing.
Preferably, described regenerator is fin tube type regenerator, described regenerator heat exchange tube device in described regenerator comprises the some groups of heat exchange coils arranged that walk abreast, the outer tube wall of described heat exchange coil is provided with fin, two groups of often adjacent heat exchange coils end to end, the gap between two groups of often adjacent heat exchange coils forms the passage for refrigerant oil gas mixture flowing heat absorption; According to the flow direction of liquid refrigerant in described heat exchange coil, the entrance being in heat exchange coil described in the first a group connects described high pressure liquid refrigerant entrance, and the outlet of heat exchange coil described in a group that is in last position connects the outlet of described high pressure liquid refrigerant.
For solving above-mentioned second technical problem about full-liquid type air-conditioner set, technical scheme of the present invention is: full-liquid type air-conditioner set, comprises and is in turn connected to form the compressor of closed circuit, condenser, expansion valve and flooded evaporator by Trunk Line; Described flooded evaporator comprises the housing of the tubular of horizontal setting, lower space in described housing is provided with heat-exchanging tube bundle, the bottom of described housing is provided with low pressure refrigerant import, described low pressure refrigerant import is connected with the refrigerant outlet of described expansion valve, the top of described housing is provided with low pressure refrigerant outlet, and described low pressure refrigerant outlet is connected with the refrigerant air inlet of described compressor;
The top being positioned at described heat-exchanging tube bundle in described housing is provided with regenerator, described regenerator is provided with high pressure liquid refrigerant entrance and high pressure liquid refrigerant outlet, described high pressure liquid refrigerant entrance is connected with the refrigerant outlet of described condenser, described high pressure liquid refrigerant outlet is connected with the refrigerant inlet of described expansion valve, is provided with regenerator heat exchange tube device in described regenerator;
The top of described heat-exchanging tube bundle is positioned at and the downstream of described regenerator is provided with gas-liquid separator in described housing, the refrigerant oil gas mixture entrance of described gas-liquid separator is corresponding with the refrigerant oil gas mixture exit position of described regenerator, the bottom of described gas-liquid separator is provided with oil return opening, described oil return opening is connected by the oil inlet passage of oil return pipe with described compressor, the top of described gas-liquid separator is provided with gas outlet, and described gas outlet is corresponding with the described low pressure refrigerant exit position on described housing.
Preferably, described regenerator is fin tube type regenerator, described regenerator heat exchange tube device in described regenerator comprises the some groups of heat exchange coils arranged that walk abreast, the outer tube wall of described heat exchange coil is provided with fin, two groups of often adjacent heat exchange coils end to end, the gap between two groups of often adjacent heat exchange coils forms the passage for refrigerant oil gas mixture flowing heat absorption; According to the flow direction of liquid refrigerant in described heat exchange coil, the entrance being in heat exchange coil described in the first a group connects described high pressure liquid refrigerant entrance, and the outlet of heat exchange coil described in a group that is in last position connects the outlet of described high pressure liquid refrigerant.
Preferably, described expansion valve is heating power expansion valve or electric expansion valve.
Owing to have employed technique scheme, flooded evaporator of the present invention, be positioned in its housing above heat-exchanging tube bundle and be provided with regenerator, regenerator is provided with the high pressure liquid refrigerant entrance for being connected with the refrigerant outlet of condenser and the high pressure liquid refrigerant for being connected with the refrigerant inlet of expansion valve exports, and is provided with regenerator heat exchange tube device in regenerator, to be positioned in housing above heat-exchanging tube bundle and the downstream of regenerator is also provided with gas-liquid separator, the refrigerant oil gas mixture entrance of gas-liquid separator is corresponding with the refrigerant oil gas mixture exit position of regenerator, oil return opening is provided with in the bottom of gas-liquid separator, be provided with gas outlet at the top of gas-liquid separator, this gas outlet is corresponding with the low pressure refrigerant exit position on housing, adopt in the full-liquid type air-conditioner set running of flooded evaporator of the present invention, from the high-pressure sub-cooled liquid cold-producing medium that condenser flows out, in flooded evaporator housing, the high pressure liquid refrigerant entrance of regenerator enters regenerator heat exchange tube device and to flow wherein release heat, temperature decline degree of supercooling increases, achieve again excessively cold, the heat of release is passed to the cold-producing medium saturated vapor of low-pressure side by tube wall, cold-producing medium saturated vapor absorbs heat and produces the degree of superheat simultaneously, again cross cold after high pressure liquid refrigerant through high pressure liquid refrigerant outlet enter expansion valve, through expansion valve throttling, become the gas-liquid two-phase mix refrigerant of low pressure, low pressure refrigerant import through housing bottom enters flooded evaporator, exchange heat is carried out with the circulating water in heat-exchanging tube bundle in the shell side of evaporimeter, the heat absorbing water becomes cold-producing medium saturated vapor and rises, coolant-temperature gage reduces, cold-producing medium saturated vapor enters regenerator and absorbs heat further the degree of superheat is increased, cold-producing medium saturated vapor and refrigerant oil gas mixture enter gas-liquid separator and carry out gas-liquid separation, the pure steam of cold-producing medium after separation gets back to compressor through low pressure refrigerant outlet, lubricating oil gets back to compressor again after oil return opening is controlledly derived.
Owing to being provided with regenerator in flooded evaporator housing, the degree of supercooling of high pressure liquid refrigerant being increased, decreases restriction loss, the degree of superheat of low side refrigerant saturated vapor increases simultaneously, and thus, the heat exchange efficiency of flooded evaporator of the present invention is high; Owing to being provided with gas-liquid separator in flooded evaporator housing, before cold-producing medium saturated vapor enters compressor, carry out gas-liquid separation, both avoided drop and entered compressor and cause liquid to impact to it, ensure that the safety of system, achieve again effective oil return, guarantee that the lubrication of compressor is reliable.
In like manner, have employed the full-liquid type air-conditioner set of flooded evaporator of the present invention, heat exchange efficiency is high, and systematic energy efficiency ratio is high, be equipped with control accuracy and common heating power expansion valve that price also low low relative to electric expansion valve can meet the demands, thus reduce manufacturing cost; Owing to the gas-liquid separator of full-liquid type air-conditioner set and regenerator being integrated in flooded evaporator housing, make an entirety, the number of separate parts be arranged on closed circuit is few, and whole air-conditioning unit structure is simply compact, takes up room little.
Accompanying drawing explanation
Fig. 1 is the structural representation of the flooded evaporator of the embodiment of the present invention;
Fig. 2 is the theory diagram of the full-liquid type air-conditioner set of the embodiment of the present invention;
In figure: 1-end plate; 2-housing; 3-regenerator; 31-heat exchange coil; 32-backplate; 4-shrouding; 5-low pressure refrigerant goes out pipe; 6-gas-liquid separator; 7-heat-exchanging tube bundle; 8-low pressure refrigerant inlet pipe; The import of A-low pressure refrigerant; B-low pressure refrigerant exports; C-oil return opening; D-high pressure liquid refrigerant exports; E-high pressure liquid refrigerant entrance.
Detailed description of the invention
In order to make object of the present invention, technical scheme and advantage clearly understand, below in conjunction with drawings and Examples, the present invention is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the present invention, be not intended to limit the present invention.
As shown in Figure 1, be the structural representation of the flooded evaporator of the embodiment of the present invention, for convenience of explanation, this figure only provides the structure division relevant with the present invention.The flooded evaporator of the embodiment of the present invention, comprise: the housing 2 of the tubular of horizontal setting, end plate 1 is respectively equipped with at the two ends of housing 2, lower space in housing 2 is provided with heat-exchanging tube bundle 7, low pressure refrigerant import A is provided with in the bottom of housing 2, this low pressure refrigerant import A is connected with low pressure refrigerant inlet pipe 8, is provided with low pressure refrigerant outlet B on the top of housing 2, and this low pressure refrigerant outlet B is connected with low pressure refrigerant and goes out pipe 5; Be positioned in housing 2 above heat-exchanging tube bundle 7 and be provided with regenerator 3, the shell wall of regenerator 3 being provided with the high pressure liquid refrigerant entrance E for being connected with the refrigerant outlet of condenser and the high pressure liquid refrigerant for being connected with the refrigerant inlet of expansion valve exports D, in regenerator 3, being provided with regenerator heat exchange tube device; To be positioned in housing 2 above heat-exchanging tube bundle 7 and the downstream of regenerator 3 is provided with gas-liquid separator 6, the refrigerant oil gas mixture entrance of this gas-liquid separator 6 is corresponding with the refrigerant oil gas mixture exit position of regenerator 3, oil return opening C is provided with in the bottom of gas-liquid separator 6, be provided with gas outlet (not specifically illustrating in figure) at the top of gas-liquid separator 6, this gas outlet is corresponding with the low pressure refrigerant outlet position B on housing 2.
Wherein, regenerator 3 preferably adopts fin tube type regenerator, the backplate 32 that its shell is arranged by shrouding 4 setting up and down and front and back surrounds, the open at both ends of shell, regenerator heat exchange tube device in this regenerator comprises the some groups of heat exchange coils 31 arranged that walk abreast, in order to strengthen heat transfer effect further, the outer tube wall of heat exchange coil 31 is provided with fin, the vertical setting of heat exchange coil 31, setting direction is consistent with heat-exchanging tube bundle 7, two groups of often adjacent heat exchange coils end to end, gap between two groups of often adjacent heat exchange coils forms the passage for refrigerant oil gas mixture flowing heat absorption, according to the flow direction of liquid refrigerant in heat exchange coil 31, the entrance being in one group of the first heat exchange coil connects high pressure liquid refrigerant entrance E, the outlet being in one group of heat exchange coil of last position connects high pressure liquid refrigerant outlet D, and best high pressure liquid refrigerant outlet D is higher than high pressure liquid refrigerant entrance E.
As shown in Figure 2, be the theory diagram of the full-liquid type air-conditioner set of the embodiment of the present invention, for convenience of explanation, this figure only provides the part relevant with the present invention, and in Fig. 2, arrow is depicted as the flow direction of cold-producing medium in air-conditioner set.The full-liquid type air-conditioner set of the embodiment of the present invention, comprises the flooded evaporator being in turn connected to form the compressor of closed circuit, condenser, heating power expansion valve and the invention described above by Trunk Line.As shown in Figure 1, flooded evaporator comprises the housing 2 of the tubular of horizontal setting, lower space in housing 2 is provided with heat-exchanging tube bundle 7, low pressure refrigerant import A is provided with in the bottom of housing 2, this low pressure refrigerant import A is connected with the refrigerant outlet of heating power expansion valve by low pressure refrigerant inlet pipe 8, be provided with low pressure refrigerant outlet B on the top of housing 2, this low pressure refrigerant outlet B goes out pipe 5 by low pressure refrigerant and is connected with the refrigerant air inlet of compressor; Be positioned in housing 2 above heat-exchanging tube bundle 7 and be provided with regenerator 3, the shell wall of regenerator 3 is provided with high pressure liquid refrigerant entrance E and high pressure liquid refrigerant outlet D, wherein, high pressure liquid refrigerant entrance E is connected with the refrigerant outlet of condenser, high pressure liquid refrigerant outlet D is connected with the refrigerant inlet of heating power expansion valve, is provided with regenerator heat exchange tube device in regenerator 3; To be positioned in housing 2 above heat-exchanging tube bundle 7 and the downstream of regenerator 3 is provided with gas-liquid separator 6, the refrigerant oil gas mixture entrance of this gas-liquid separator 6 is corresponding with the refrigerant oil gas mixture exit position of regenerator 3, oil return opening C is provided with in the bottom of gas-liquid separator 6, this oil return opening C is connected with the oil inlet passage of compressor by oil return pipe, be provided with gas outlet at the top of gas-liquid separator 6, this gas outlet is corresponding with the low pressure refrigerant outlet position B on housing 2.
The full-liquid type air-conditioner set course of work: adopt in the full-liquid type air-conditioner set running of flooded evaporator of the present invention, from the high-pressure sub-cooled liquid cold-producing medium that condenser flows out, in flooded evaporator housing 2, the high pressure liquid refrigerant entrance E heat exchange coil 31 entered in regenerator 3 of regenerator 3 flows release heat wherein, temperature decline degree of supercooling increases, achieve again excessively cold, the heat of release is passed to the cold-producing medium saturated vapor of low-pressure side by tube wall and fin, cold-producing medium saturated vapor absorbs heat and produces the degree of superheat simultaneously, again cross cold after high pressure liquid refrigerant through high pressure liquid refrigerant outlet D enter heating power expansion valve, through heating power expansion valve throttling, become the gas-liquid two-phase mix refrigerant of low pressure, low pressure refrigerant import A bottom housing 2 enters flooded evaporator, exchange heat is carried out with the circulating water in heat-exchanging tube bundle 7 in the shell side of evaporimeter, the heat absorbing water becomes cold-producing medium saturated vapor and rises, in heat-exchanging tube bundle 7, the temperature of water reduces, the cold-producing medium saturated vapor risen enters the further heat that absorbs of regenerator 3 makes the degree of superheat increase, carry the cold-producing medium saturated vapor of lubricating oil and refrigerant oil gas mixture to enter in gas-liquid separator 6 and carry out gas-liquid separation, the pure steam of cold-producing medium after separation gets back to compressor through low pressure refrigerant outlet B, lubricating oil gets back to compressor again through oil return pipe after oil return opening C controlledly derives.
Certainly, the expansion valve in full-liquid type air-conditioner set of the present invention also can continue to adopt electric expansion valve.
Flooded evaporator of the present invention owing to being provided with regenerator in housing, the degree of supercooling of high pressure liquid refrigerant is increased, decrease restriction loss, the degree of superheat of low side refrigerant saturated vapor increases simultaneously, actual motion shows that the degree of superheat is at 5-7 DEG C, thus, the heat exchange efficiency of flooded evaporator of the present invention is high; Owing to being provided with gas-liquid separator in flooded evaporator housing, before cold-producing medium saturated vapor enters compressor, carry out gas-liquid separation, both avoided drop and entered compressor and cause liquid to impact to it, ensure that the safety of system, achieve again effective oil return, guarantee that the lubrication of compressor is reliable.
Full-liquid type air-conditioner set of the present invention is owing to have employed flooded evaporator of the present invention, heat exchange efficiency is high, systematic energy efficiency ratio is high, and being equipped with control accuracy and common heating power expansion valve that price also low low relative to electric expansion valve can meet the demands, and thus reduces manufacturing cost; Owing to the gas-liquid separator of full-liquid type air-conditioner set and regenerator being integrated in flooded evaporator housing, make an entirety, thus, the number of separate parts be arranged on closed circuit is few, and whole air-conditioning unit structure is simply compact, takes up room little.
Claims (5)
1. flooded evaporator, comprises the housing of the tubular of horizontal setting, and the lower space in described housing is provided with heat-exchanging tube bundle, and the bottom of described housing is provided with low pressure refrigerant import, and the top of described housing is provided with low pressure refrigerant outlet; It is characterized in that:
The top being positioned at described heat-exchanging tube bundle in described housing is provided with regenerator, described regenerator is provided with the high pressure liquid refrigerant entrance for being connected with the refrigerant outlet of condenser and the high pressure liquid refrigerant for being connected with the refrigerant inlet of expansion valve exports, and is provided with regenerator heat exchange tube device in described regenerator;
The top of described heat-exchanging tube bundle is positioned at and the downstream of described regenerator is provided with gas-liquid separator in described housing, the refrigerant oil gas mixture entrance of described gas-liquid separator is corresponding with the refrigerant oil gas mixture exit position of described regenerator, the bottom of described gas-liquid separator is provided with oil return opening, the top of described gas-liquid separator is provided with gas outlet, and described gas outlet is corresponding with the described low pressure refrigerant exit position on described housing.
2. flooded evaporator as claimed in claim 1, it is characterized in that: described regenerator is fin tube type regenerator, described regenerator heat exchange tube device in described regenerator comprises the some groups of heat exchange coils arranged that walk abreast, the outer tube wall of described heat exchange coil is provided with fin, two groups of often adjacent heat exchange coils end to end, the gap between two groups of often adjacent heat exchange coils forms the passage for refrigerant oil gas mixture flowing heat absorption; According to the flow direction of liquid refrigerant in described heat exchange coil, the entrance being in heat exchange coil described in the first a group connects described high pressure liquid refrigerant entrance, and the outlet of heat exchange coil described in a group that is in last position connects the outlet of described high pressure liquid refrigerant.
3. full-liquid type air-conditioner set, comprises and is in turn connected to form the compressor of closed circuit, condenser, expansion valve and flooded evaporator by Trunk Line; It is characterized in that: described flooded evaporator comprises the housing of the tubular of horizontal setting, lower space in described housing is provided with heat-exchanging tube bundle, the bottom of described housing is provided with low pressure refrigerant import, described low pressure refrigerant import is connected with the refrigerant outlet of described expansion valve, the top of described housing is provided with low pressure refrigerant outlet, and described low pressure refrigerant outlet is connected with the refrigerant air inlet of described compressor;
The top being positioned at described heat-exchanging tube bundle in described housing is provided with regenerator, described regenerator is provided with high pressure liquid refrigerant entrance and high pressure liquid refrigerant outlet, described high pressure liquid refrigerant entrance is connected with the refrigerant outlet of described condenser, described high pressure liquid refrigerant outlet is connected with the refrigerant inlet of described expansion valve, is provided with regenerator heat exchange tube device in described regenerator;
The top of described heat-exchanging tube bundle is positioned at and the downstream of described regenerator is provided with gas-liquid separator in described housing, the refrigerant oil gas mixture entrance of described gas-liquid separator is corresponding with the refrigerant oil gas mixture exit position of described regenerator, the bottom of described gas-liquid separator is provided with oil return opening, described oil return opening is connected by the oil inlet passage of oil return pipe with described compressor, the top of described gas-liquid separator is provided with gas outlet, and described gas outlet is corresponding with the described low pressure refrigerant exit position on described housing.
4. full-liquid type air-conditioner set as claimed in claim 3, it is characterized in that: described regenerator is fin tube type regenerator, described regenerator heat exchange tube device in described regenerator comprises the some groups of heat exchange coils arranged that walk abreast, the outer tube wall of described heat exchange coil is provided with fin, two groups of often adjacent heat exchange coils end to end, the gap between two groups of often adjacent heat exchange coils forms the passage for refrigerant oil gas mixture flowing heat absorption; According to the flow direction of liquid refrigerant in described heat exchange coil, the entrance being in heat exchange coil described in the first a group connects described high pressure liquid refrigerant entrance, and the outlet of heat exchange coil described in a group that is in last position connects the outlet of described high pressure liquid refrigerant.
5. the full-liquid type air-conditioner set as described in any one of claim 3 or 4, is characterized in that: described expansion valve is heating power expansion valve or electric expansion valve.
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| CN201410287000.4A CN104019585B (en) | 2014-06-24 | 2014-06-24 | Flooded evaporator and full-liquid type air-conditioner set |
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| CN201410287000.4A CN104019585B (en) | 2014-06-24 | 2014-06-24 | Flooded evaporator and full-liquid type air-conditioner set |
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| CN104019585B true CN104019585B (en) | 2015-12-16 |
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Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105509371A (en) * | 2014-09-23 | 2016-04-20 | 博世热力技术（山东）有限公司 | Integrated unit for water chilling unit and water chilling unit |
| CN106765742A (en) * | 2016-11-21 | 2017-05-31 | 珠海格力电器股份有限公司 | Air-conditioner set with full-liquid type case tube heat exchanger |
| CN107763900A (en) * | 2017-11-14 | 2018-03-06 | 广州番禺速能冷暖设备有限公司 | A kind of compact shell and tube exchanger |
| CN108826738B (en) * | 2018-08-01 | 2023-11-10 | 安徽欧瑞达电器科技有限公司 | High-temperature type water heater unit |
| CN109341120B (en) * | 2018-11-15 | 2024-03-01 | 苏州利玛特能源装备有限公司 | Flooded refrigerating system |
| CN111322797A (en) * | 2018-12-17 | 2020-06-23 | 杭州赛富特设备有限公司 | Evaporator, evaporation system and evaporator oil return method |
| CN110285606A (en) * | 2019-07-02 | 2019-09-27 | 上海柯茂机械有限公司 | Flooded evaporator |
| SE545748C2 (en) * | 2020-01-30 | 2023-12-27 | Swep Int Ab | A heat exchanger and refrigeration system and method |
| CN112432391A (en) * | 2020-12-11 | 2021-03-02 | 爱法空调冷冻科技(无锡)有限公司 | Low-temperature flooded evaporator and use method |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JP2003161538A (en) * | 2001-11-22 | 2003-06-06 | Denso Corp | Refrigerating cycle device and condenser |
| US6910349B2 (en) * | 2002-08-06 | 2005-06-28 | York International Corporation | Suction connection for dual centrifugal compressor refrigeration systems |
| CN201973964U (en) * | 2011-02-16 | 2011-09-14 | 陈卫华 | Vertical evaporator with gas-liquid separation function |
| CN202403456U (en) * | 2011-12-06 | 2012-08-29 | 克莱门特捷联制冷设备(上海)有限公司 | Multiple-compressor parallel unit comprising flooded shell-tube evaporator |
| CN202928177U (en) * | 2012-11-30 | 2013-05-08 | 苏州必信空调有限公司 | Integrated type refrigerant heat-recycling and circulating system |
| CN203949414U (en) * | 2014-06-24 | 2014-11-19 | 山东雅士股份有限公司 | Flooded evaporator and full-liquid type air-conditioning unit |
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Effective date of registration: 20160302 Address after: 528451 Guangdong province Zhongshan Nanlang Town Industrial Park, the first time the Tashan Road No. 5 Patentee after: Guangdong Yashi Electrical Appliance Co. Ltd. Address before: High tech Zone Taoyuan Street 261062 Shandong city of Weifang province No. 7898 Patentee before: Shandong Yashi Co., Ltd. |