CN204648763U - Cooling air conditioner falling film evaporator - Google Patents

Cooling air conditioner falling film evaporator Download PDF

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Publication number
CN204648763U
CN204648763U CN201520313780.5U CN201520313780U CN204648763U CN 204648763 U CN204648763 U CN 204648763U CN 201520313780 U CN201520313780 U CN 201520313780U CN 204648763 U CN204648763 U CN 204648763U
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liquid
heat exchanger
liquid distributor
air conditioner
cooling air
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CN201520313780.5U
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Inventor
温雪莹
王富华
李景豹
栗伟
丁继龙
孙翠霞
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Shandong Grad Group Co Ltd
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Shandong Grad Group Co Ltd
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Abstract

The utility model relates to a kind of cooling air conditioner falling film evaporator, mainly comprise cylindrical shell, heat exchanger tube is restrained, refrigerant inlet assembly, refrigerant outlet assembly and liquid distributor, cylindrical shell both side ends is provided with tube sheet, refrigerant inlet assembly, refrigerant outlet assembly is separately positioned on cylindrical shell top, it is characterized in that: described liquid distributor is placed in inner barrel and is connected with refrigerant inlet assembly, both sides, liquid distributor top are connected with cylinder inboard wall respectively by the liquid barrier of AND DEWATERING FOR ORIFICE STRUCTURE, liquid distributor two bottom sides is respectively equipped with backplate, described heat exchanger tube tube bank is arranged on immediately below liquid distributor, heat exchanger tube tube bank is connected and fixed by gripper shoe and cylindrical shell, heat exchanger tube tube bank both side ends is connected with tube plate expanded-connecting, the intrafascicular portion of heat exchange tube is provided with the dividing plate of a horizontal distribution, the cooling air conditioner falling film evaporator of this structure, by minute design, makes cold-producing medium cloth liquid even, reduces the impact of absorbing gas belt liquid phenomenon, make unit in running, reach the object of high energy efficiency.

Description

Cooling air conditioner falling film evaporator
Technical field
The utility model relates to central air conditioning technical group field, particularly relates to a kind of cooling air conditioner falling film evaporator.
Background technology
The advantage more and more welcomed by the peoples such as in air-conditioner set, downward film evaporator is high with its coefficient of heat transfer, and refrigerant charge is few, but, due to the difference of downward film evaporator structure, make unit in the operation of reality, the high energy efficiency of expection might not be reached.
The current minute design for downward film evaporator structure more and more receives the concern of people, each manufacturing enterprise all constantly drops into the minute design that resource carries out downward film evaporator structure, under the prerequisite not increasing production cost, it is made to reach the object of high energy efficiency.
Summary of the invention
In order to solve deficiency of the prior art, the purpose of this utility model is to provide a kind of cooling air conditioner falling film evaporator, is reached the object of high energy efficiency by the structural design become more meticulous.
The utility model solves the technical scheme that its technical problem adopts:
A kind of cooling air conditioner falling film evaporator, mainly comprise cylindrical shell, heat exchanger tube is restrained, refrigerant inlet assembly, refrigerant outlet assembly and liquid distributor, cylindrical shell both side ends is provided with tube sheet, refrigerant inlet assembly, refrigerant outlet assembly is separately positioned on cylindrical shell top, it is characterized in that: described liquid distributor is placed in inner barrel and is connected with refrigerant inlet assembly, both sides, liquid distributor top are connected with cylinder inboard wall respectively by the liquid barrier of AND DEWATERING FOR ORIFICE STRUCTURE, liquid distributor two bottom sides is respectively equipped with backplate, described heat exchanger tube tube bank is arranged on immediately below liquid distributor, heat exchanger tube tube bank is connected and fixed by gripper shoe and cylindrical shell, heat exchanger tube tube bank both side ends is connected with tube plate expanded-connecting, the intrafascicular portion of heat exchange tube is provided with the dividing plate of a horizontal distribution.
Described backplate vertically tilt outside liquid distributor 10-20 degree arrange.
Described liquid barrier is positioned at the scope not perforate of at least 2.5 times of refrigerant outlet module outlet calibers immediately below refrigerant outlet assembly.
The middle and upper part of described cylinder inboard wall is also provided with baffle plate, and baffle plate is positioned at liquid distributor both sides, and baffle plate and liquid barrier spacing 50-100mm are arranged.
Described liquid distributor top is welded and fixed by fixed head and cylinder inboard wall.
Described heat exchanger tube tube bank is made up of some heat exchanger tubes, and heat exchanger tube is corresponding with the refrigerant outlet of liquid distributor bottom surface to be arranged.
Described cylinder body bottom be also provided with at least two oil return openings and with oil return opening liquid-sighting glass one to one, described liquid-sighting glass is positioned on the upside of corresponding oil return opening.
Described oil return opening vertically inclination 10-30 degree is arranged.
Described cylindrical shell middle and upper part is provided with at least one liquid-sighting glass.
Described by said structure, cold-producing medium enters liquid distributor by refrigerant inlet assembly, through the even cloth liquid of liquid distributor, form tiny drop, vertically be dropped on heat-exchanging tube bundle, evaporate, the passage of the refrigerant gas after evaporation between liquid distributor and cylindrical shell enters refrigerant outlet assembly, is absorbed by compressor; Be entrained with vaporific refrigerant liquid in refrigerant gas after evaporation, when by backplate and liquid barrier, baffle plate, can stop and the atomized refrigerant of collecting wherein becomes liquid, be dropped in cylinder body bottom under gravity.
Be dropped in heat exchanger tube tube bank by liquid distributor, there is no the cold-producing medium of evaporation under gravity, coated heat exchange pipe external surface, be dropped on lower one deck heat-exchanging tube bundle, repeated evaporation, the liquid refrigerant finally do not evaporated is dropped in cylinder body bottom, forms full liquid zone evaporate at cylinder body bottom.
The passage that refrigerant gas after the cold-producing medium evaporation of the full liquid zone of cylinder body bottom is formed between dividing plate and cylindrical shell, then enter refrigerant outlet assembly through baffle plate, liquid barrier, absorbed by compressor; Be entrained with vaporific refrigerant liquid equally in refrigerant gas after the evaporation of full liquid zone, when by baffle plate, liquid barrier, can stop and the atomized refrigerant of collecting wherein becomes liquid, be dropped in cylinder body bottom under gravity, repeated evaporation.
The beneficial effects of the utility model are:
The cooling air conditioner falling film evaporator of this structure, by minute design, makes cold-producing medium cloth liquid even, reduces the impact of absorbing gas belt liquid phenomenon, make unit in running, reach the object of high energy efficiency.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the utility model is further illustrated.
Fig. 1 is that master of the present utility model looks sectional structure schematic diagram;
Fig. 2 is diagrammatic side-view cross-sectional structural representation of the present utility model;
In figure: 1 tube sheet, 2 fixed heads, 3 cylindrical shells, 4 liquid distributors, 5 refrigerant inlet assemblies, 6 refrigerant outlet assemblies, 7 liquid barriers, 8 baffle plates, 9 backplates, 10 oil return openings, 11 liquid-sighting glass, 12 dividing plates, 13 gripper shoes, 14 heat exchanger tube tube banks, 15 liquid-sighting glass.
Detailed description of the invention
As shown in Figure 1, 2: a kind of cooling air conditioner falling film evaporator, mainly comprise cylindrical shell 3, heat exchanger tube tube bank 14, refrigerant inlet assembly 5, refrigerant outlet assembly 6 and liquid distributor 4, cylindrical shell 3 both side ends is provided with tube sheet 1, refrigerant inlet assembly 5, refrigerant outlet assembly 6 are welded on cylindrical shell 3 top respectively, wherein:
Described liquid distributor 4 is placed in cylindrical shell 3 inside and is connected with refrigerant inlet assembly 5, liquid distributor 4 top is welded and fixed by fixed head 2 and cylindrical shell 3 inwall, the refrigerant outlet bottom liquid distributor 4 is made to be positioned at the middle part of cylindrical shell 3, both sides, liquid distributor 4 top are connected with cylindrical shell 3 inwall respectively by the liquid barrier 7 of AND DEWATERING FOR ORIFICE STRUCTURE, the perforated area size of liquid barrier 7 makes the flow velocity of refrigerant gas at below 3m/s, this liquid barrier 7 to be positioned at immediately below refrigerant outlet assembly 6 the scope not perforate that 2.5 times of refrigerant outlet assemblies 6 export caliber, prevent the refrigerant gas with cold-producing medium drop from directly returning into refrigerant outlet assembly 6 by the through hole of this position, liquid distributor 4 two bottom sides is respectively equipped with backplate 9, backplate 9 vertically inclination 15 degree of settings outside liquid distributor 4,
Described heat exchanger tube tube bank 14 is arranged on immediately below liquid distributor 4, heat exchanger tube tube bank 14 is connected and fixed by gripper shoe 13 and cylindrical shell 3, heat exchanger tube is restrained 14 both side ends and is connected with tube sheet 1 expanded joint, the dividing plate 12 of a horizontal distribution is provided with in the middle part of heat exchanger tube tube bank 14, refrigerant gas flow control between dividing plate 12 and cylindrical shell 3 inwall is at below 1m/s, dividing plate 12 and gripper shoe 13 are welded to connect, be welded to connect with cylindrical shell 3 inwall outside gripper shoe 13, heat exchanger tube tube bank 14 is made up of some heat exchanger tubes, heat exchanger tube is corresponding with the refrigerant outlet of liquid distributor 4 bottom surface to be arranged, the cold-producing medium that refrigerant outlet bottom liquid distributor 4 is flowed out can be evenly distributed in the heat exchanger tube surface of top layer, then every layer of heat exchanger tube surface is below flow to successively, reach the abundant evaporation of cold-producing medium.
The middle and upper part of described cylindrical shell 3 inwall is also provided with baffle plate 8, and baffle plate 8 is positioned at liquid distributor 4 both sides, and baffle plate 8 and liquid barrier 7 spacing 50-100mm are arranged.
Also be provided with bottom described cylindrical shell 3 two oil return openings 10 and with oil return opening 10 liquid-sighting glass 11 one to one, oil return opening 10 and cylindrical shell 3 erect vertical line angle 15 ~ 20 degree and arrange, described liquid-sighting glass 11 is positioned on the upside of corresponding oil return opening 10, is convenient to the liquid level of observing cold-producing medium.
Described cylindrical shell 3 middle and upper part is provided with a liquid-sighting glass 11, is positioned at the side of refrigerant outlet assembly 6, for observing refrigerant suction band liquid situation.
The foregoing is only preferred embodiments of the present utility model, as long as realize the purpose of this utility model technical scheme with basic same approach, all belong within protection domain of the present utility model.

Claims (9)

1. a cooling air conditioner falling film evaporator, mainly comprise cylindrical shell, heat exchanger tube is restrained, refrigerant inlet assembly, refrigerant outlet assembly and liquid distributor, cylindrical shell both side ends is provided with tube sheet, refrigerant inlet assembly, refrigerant outlet assembly is separately positioned on cylindrical shell top, it is characterized in that: described liquid distributor is placed in inner barrel and is connected with refrigerant inlet assembly, both sides, liquid distributor top are connected with cylinder inboard wall respectively by the liquid barrier of AND DEWATERING FOR ORIFICE STRUCTURE, liquid distributor two bottom sides is respectively equipped with backplate, described heat exchanger tube tube bank is arranged on immediately below liquid distributor, heat exchanger tube tube bank is connected and fixed by gripper shoe and cylindrical shell, heat exchanger tube tube bank both side ends is connected with tube plate expanded-connecting, the intrafascicular portion of heat exchange tube is provided with the dividing plate of a horizontal distribution.
2. a kind of cooling air conditioner falling film evaporator according to claim 1, is characterized in that: described backplate vertically tilt outside liquid distributor 10-20 degree arrange.
3. a kind of cooling air conditioner falling film evaporator according to claim 1, is characterized in that: described liquid barrier is positioned at the scope not perforate of at least 2.5 times of refrigerant outlet module outlet calibers immediately below refrigerant outlet assembly.
4. a kind of cooling air conditioner falling film evaporator according to claim 1, it is characterized in that: the middle and upper part of described cylinder inboard wall is also provided with baffle plate, baffle plate is positioned at liquid distributor both sides, and baffle plate and liquid barrier spacing 50-100mm are arranged.
5. a kind of cooling air conditioner falling film evaporator according to claim 1, is characterized in that: described liquid distributor top is welded and fixed by fixed head and cylinder inboard wall.
6. a kind of cooling air conditioner falling film evaporator according to claim 1, is characterized in that: described heat exchanger tube tube bank is made up of some heat exchanger tubes, and heat exchanger tube is corresponding with the refrigerant outlet of liquid distributor bottom surface to be arranged.
7. a kind of cooling air conditioner falling film evaporator according to claim 1, is characterized in that: described cylinder body bottom be also provided with at least two oil return openings and with oil return opening liquid-sighting glass one to one, described liquid-sighting glass is positioned on the upside of corresponding oil return opening.
8. a kind of cooling air conditioner falling film evaporator according to claim 7, is characterized in that: described oil return opening vertically inclination 10-30 degree is arranged.
9. a kind of cooling air conditioner falling film evaporator according to claim 1, is characterized in that: described cylindrical shell middle and upper part is provided with at least one liquid-sighting glass.
CN201520313780.5U 2015-05-15 2015-05-15 Cooling air conditioner falling film evaporator Active CN204648763U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201520313780.5U CN204648763U (en) 2015-05-15 2015-05-15 Cooling air conditioner falling film evaporator

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Application Number Priority Date Filing Date Title
CN201520313780.5U CN204648763U (en) 2015-05-15 2015-05-15 Cooling air conditioner falling film evaporator

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CN204648763U true CN204648763U (en) 2015-09-16

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106766398A (en) * 2017-02-23 2017-05-31 大连冷冻机股份有限公司 Suitable for the labyrinth type liquid baffle structure of falling film evaporator
CN107255375A (en) * 2017-06-30 2017-10-17 珠海格力电器股份有限公司 Heat exchanger and air-conditioning device
CN108679886A (en) * 2018-06-29 2018-10-19 珠海格力电器股份有限公司 Downward film evaporator and electric equipment products
CN110312904A (en) * 2016-12-19 2019-10-08 瓦特鲁斯公司 Evaporator and method for the evaporated material in evaporator
CN110914625A (en) * 2017-10-10 2020-03-24 江森自控科技公司 Heating, ventilation, air conditioning and refrigeration (HVAC & R) system having an evaporator including a reticulated eliminator assembly and method of constructing a reticulated eliminator assembly

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110312904A (en) * 2016-12-19 2019-10-08 瓦特鲁斯公司 Evaporator and method for the evaporated material in evaporator
US11236932B2 (en) 2016-12-19 2022-02-01 Vahterus Oy Evaporator and a method for vaporizing a substance in an evaporator
CN106766398A (en) * 2017-02-23 2017-05-31 大连冷冻机股份有限公司 Suitable for the labyrinth type liquid baffle structure of falling film evaporator
CN107255375A (en) * 2017-06-30 2017-10-17 珠海格力电器股份有限公司 Heat exchanger and air-conditioning device
CN110914625A (en) * 2017-10-10 2020-03-24 江森自控科技公司 Heating, ventilation, air conditioning and refrigeration (HVAC & R) system having an evaporator including a reticulated eliminator assembly and method of constructing a reticulated eliminator assembly
CN110914625B (en) * 2017-10-10 2022-08-05 江森自控科技公司 HVAC & R systems and methods of constructing a mesh suppressor assembly
CN108679886A (en) * 2018-06-29 2018-10-19 珠海格力电器股份有限公司 Downward film evaporator and electric equipment products

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