CN202973672U - Shell and tube condenser and refrigeration unit - Google Patents

Shell and tube condenser and refrigeration unit Download PDF

Info

Publication number
CN202973672U
CN202973672U CN 201220580273 CN201220580273U CN202973672U CN 202973672 U CN202973672 U CN 202973672U CN 201220580273 CN201220580273 CN 201220580273 CN 201220580273 U CN201220580273 U CN 201220580273U CN 202973672 U CN202973672 U CN 202973672U
Authority
CN
China
Prior art keywords
shell
gas
deflector
tube condenser
condenser
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CN 201220580273
Other languages
Chinese (zh)
Inventor
周彤华
代奇彬
张运乾
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Chongqing Midea General Refrigeration Equipment Co Ltd
Original Assignee
Chongqing Midea General Refrigeration Equipment Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Chongqing Midea General Refrigeration Equipment Co Ltd filed Critical Chongqing Midea General Refrigeration Equipment Co Ltd
Priority to CN 201220580273 priority Critical patent/CN202973672U/en
Application granted granted Critical
Publication of CN202973672U publication Critical patent/CN202973672U/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Images

Abstract

The utility model provides a shell and tube condenser and a refrigeration unit provided with the shell and tube condenser. The shell and tube condenser comprises a shell which is opened at two ends, wherein the shell is provided with a refrigerant inlet for introducing a refrigerant, and a liquid outlet; inside the shell, a condensation tube bundleishorizontally arranged in the shell, and are supported by using a plurality of support plates; a horizontally-placed air balancing plate is arranged below the refrigerant inlet; and a guide plate which forms a certain inclination angle with the horizontal direction of the shell is placed at the middle position of the condensation tube bundle in the shell, and is inserted into the condensation tube support plates. In the refrigeration unit, the shell and tube condenser is adopted. The shell and tube condenser and the refrigeration unit provided by the utility model have good heat exchange effects, the efficiency of the unit can be increased greatly, and the energy consumption is lowered.

Description

Shell and tube condenser and refrigeration unit
Technical field
The utility model belongs to the air conditioner refrigerating technical field, more particularly, relates to the refrigeration unit that a kind of shell and tube condenser agent comprises this shell and tube condenser.
Background technology
In refrigeration system, condenser is as system's critical piece, and its performance directly affects the performance of whole refrigeration system.The handpiece Water Chilling Units that Large Central Air Conditioning System uses or the condenser of large-scale freezing unit are mainly shell and tube condensers.
With reference to shown in Figure 1, show a kind of condenser that an impingement baffle 2' is set below refrigerant inlet 1', the shunting of process impingement baffle 2' when cold media gas enters in the condenser body by refrigerant inlet 1', resistance shelves and distribution because of impingement baffle 2', cold media gas distributes more even, has improved heat transfer effect.But because the impingement baffle 2' lateral separation of its setting is shorter, cold media gas can not get even distribution at housing two ends, causes housing both sides heat exchanger tube heat transfer effect undesirable.
And, with reference to shown in Figure 2, in condensation process, can drop in the outer surface of the latter half condenser pipe 32' by the liquid refrigerants of condenser the first half condenser pipe 31' condensation, formation along with condensate liquid outside condenser pipe, drippage, lower floor's condenser pipe liquid film is affected by the upper strata, the liquid film thickening, heat transfer property reduces, therefore the heat exchanger tube row is more, and the heat exchange property impact is larger, will cause that condensation temperature rises, unit performance descends, and is more obvious on large cold heat exchanger impact.
The utility model content
Technical problem to be solved in the utility model is to provide a kind of shell and tube condenser, is intended to realize that air inlet is evenly distributed, and the purpose of lower tube bundle liquid film attenuate promotes its whole heat transfer effect.
For solving the problems of the technologies described above, the technical solution adopted in the utility model is: a kind of shell and tube condenser is provided, the tubular shell that comprises both ends open, the upside of described housing is provided with refrigerant inlet, downside is provided with liquid outlet, and the inner horizontal of described housing is provided with the condensation tube bank of being supported by the polylith gripper shoe;
Also be fixed with gas averaging board in described housing, and this all gas structure plate be positioned at the below of described refrigerant inlet, two ends of described gas averaging board extend between the two ends of described housing and this both ends and described housing and seal, described gas averaging board and described housing form an equal air cavity, offer a plurality of equal pores except extra-regional all the other zones over against described refrigerant inlet on described gas averaging board.
Particularly, described gas averaging board has equal gas base plate and along these equal gas base plate both sides two equal gas side plates and be connected in this all two equal gas baffle plates at gas base plate two ends of bending upwards, described equal air cavity is jointly enclosed by described all gas base plate, two described all gas side plates and two described all gas baffle plates and described housing and forms, and described a plurality of equal pores are located on described all gas base plate.
Further, also be provided with a plurality of described equal pores on each described all gas side plate.
Optimally, described equal pore equidistantly evenly distributes.
Further, the medium position that is positioned at described condensation tube bank in described housing also is provided with a deflector, the horizontal direction of described deflector and described housing is the lateral tilt setting, and described deflector is separated into described condensation tube bank the first condenser pipe family that is positioned at the top and is positioned at the second condenser pipe family of below; The both ends of described deflector extend to the two ends of described housing, and leave the gap between the edge of described deflector and described housing.
Particularly, each described gripper shoe is provided with the mounting hole site identical with the shape of cross section of described deflector, and described deflector is arranged in each described mounting hole site and with described gripper shoe and welds.
Particularly, the downside of described deflector is provided with at least two the first support members that are used for supporting described deflector, and the mounting hole site on each described gripper shoe is provided with groove position identical with described the first support member group quantity, that allow described the first support member pass through when being used for installing to downward-extension.
Further, also be provided with respectively one second support member near the both ends of described deflector and the downside that is positioned at described deflector, weld with the inwall of described housing at the two ends of described the second support member.
Further, the upper and lower of described deflector also is provided with at least four connectors for fixing described a plurality of gripper shoes on described gripper shoe.
The shell and tube condenser that the utility model provides, the refrigerant vapour that compressor comes enters in the equal air cavity of gas averaging board and housing formation from refrigerant inlet, all flowing along total length in air cavity, equal pore from the gas averaging board is discharged again, liquid phase refrigerant is gone up and is formed in the condensation tube bank that is evenly distributed on condenser top, be positioned at the not perforate of region area of refrigerant inlet below on gas averaging board, to avoid cold-producing medium directly to discharge, the condensation tube bank is impacted, distribution of refrigerant is even simultaneously, has improved heat exchange property; The centre of its condensation tube bank arranges deflector, the vapor phase refrigerant that flows out from the equal pore of gas averaging board is condensed into liquid gradually at the first condensation tube bundle, flow downward along the first condensation tube bundle, collect in lateral tilt and air deflector and water conservancy diversion are set to shell rim, then flow to the second condensation tube bundle bottom along housing, avoid liquid phase refrigerant to flow to the condenser pipe surface liquid film thickening that the second condensation tube bundle causes the second condensation tube bundle, affect heat transfer effect.
The technical problems to be solved in the utility model also is to provide a kind of refrigeration unit, it comprises throttling unit, evaporimeter and the compressor that is connected successively by connecting pipe, also comprise above-mentioned shell and tube condenser, described shell and tube condenser is located between described compressor and described throttling unit, described compressor is tightly connected by pipeline and described refrigerant inlet, described throttling unit is connected with described liquid outlet by pipeline, forms the refrigerating circuit of refrigerant circulation.
The refrigeration unit that the utility model provides owing to having adopted above-mentioned shell and tube condenser, improves the condenser heat exchange property on the whole, and the unit efficiency improves greatly, and energy consumption obviously reduces.
Description of drawings
Fig. 1 is existing a kind of front view that the condenser of impingement baffle is set below refrigerant inlet;
Fig. 2 is the generalized section of the condenser described in Fig. 1;
Fig. 3 is the shell and tube condenser sectional structure schematic diagram along its length that the utility model provides;
Fig. 4 is that the solid of the shell and tube condenser that provides of the utility model is partly cutd open structural representation;
Fig. 5 is the shell and tube condenser that provides of the utility model along the structural representation that cuts open of refrigerant inlet and liquid outlet axis;
Fig. 6 is the perspective view of the gas averaging board in the shell and tube condenser that provides of the utility model;
Fig. 7 is the perspective view of the gripper shoe in the shell and tube condenser that provides of the utility model.
The implication of each mark in figure:
1: housing, 15: equal air cavity, 21: refrigerant inlet, 22: liquid outlet, 3: condensation tube bank, 31: the first condensation tube bundles, 32: the second condensation tube bundles, 4: gripper shoe, 40: mounting hole site, 401: the tongue position, 5: gas averaging board, 50: equal gas base plates, 51: equal gas side plates, 52: equal gas baffle plates, 500: equal pores, 6: deflector, 71: the first support members, 72: the second support members, 8: connector.
The specific embodiment
In order to make technical problem to be solved in the utility model, technical scheme and beneficial effect clearer, below in conjunction with drawings and Examples, the utility model is further elaborated.Should be appreciated that specific embodiment described herein only in order to explaining the utility model, and be not used in restriction the utility model.
Please in the lump with reference to Fig. 3 and Fig. 6, the existing shell and tube condenser that the utility model is provided describes.Shell and tube condenser, the tubular shell 1 that comprises both ends open, the upside of housing 1 is provided with refrigerant inlet 21, downside is provided with liquid outlet 22, the inner horizontal of housing 1 is provided with the condensation of being supported by polylith gripper shoe 4 and restrains 3(because this is prior art, therefore the assembly structure between condensation tube bank 3 and gripper shoe 4 is omitted in Fig. 5); Also be fixed with gas averaging board 5 in housing 1, and this all gas structure 5 plates be positioned at the below of refrigerant inlet 21, two ends of gas averaging board 1 extend to sealing between the two ends of housing 1 and this both ends and housing 1, gas averaging board 5 forms an equal air cavity 15 with housing 1, offers a plurality of equal pores 500 except extra-regional all the other zones over against refrigerant inlet 21 on gas averaging board 5.
The shell and tube condenser that the utility model provides, the refrigerant vapour that compressor comes enters in the equal air cavity 15 of gas averaging board 5 and housing 1 formation from refrigerant inlet 21, interior mobile along total length at equal air cavity 15, equal pore from the gas averaging board 5 500 is discharged again, be evenly distributed in the condensation tube bank 3 on condenser top and be condensed into gradually liquid phase refrigerant, be positioned at the not perforate of region area of refrigerant inlet 21 belows on gas averaging board 15, to avoid cold-producing medium directly to discharge, condensation tube bank 3 is impacted, distribution of refrigerant is even simultaneously, has improved heat exchange property.
See also Fig. 4 to Fig. 6, a kind of specific embodiment of the shell and tube condenser that provides as the utility model, gas averaging board 5 has equal gas base plates 50 and along these equal gas base plate 50 both sides two equal gas side plates 51 and be connected in this all two equal gas baffle plates 52 at gas base plate 50 two ends of bending upwards, all air cavity 15 by equal gas base plates 50, two all gas side plate 51 and two all gas baffle plate 52 jointly enclose with housing 1 and form, its place of interconnecting is for being tightly connected, and a plurality of equal pores 500 are located at all on gas base plate 50.Be evenly distributed in the condensation tube bank 3 of below after being beneficial to like this redistributing of the vapor phase refrigerant that imports from refrigerant inlet 21.
Further, see also Fig. 4 and Fig. 6, a kind of specific embodiment of the shell and tube condenser that provides as the utility model, each all also is provided with a plurality of equal pores 500 on gas side plate 51, increase the distribution outlet of vapor phase refrigerant from two sides, can avoid cold-producing medium directly to discharge condensation tube bank 3 is impacted, and further promote the distributing homogeneity of cold-producing medium, improve heat exchange efficiency.
Referring to Fig. 6, a kind of optimization embodiment of the shell and tube condenser that provides as the utility model can be evenly distributed in the condensation tube bank 3 of gas averaging board 5 belows in order to make vapor phase refrigerant very much, and all pore 500 equidistantly evenly distributes.
Further, see also Fig. 3 to Fig. 5, a kind of specific embodiment of the shell and tube condenser that provides as the utility model, the medium position that is positioned at condensation tube bank 3 in housing 1 also is provided with a deflector 6, deflector 6 is the lateral tilt setting with the horizontal direction of housing 1, and deflector 6 is separated into condensation tube bank 3 the first condenser pipe family 31 that is positioned at the top and is positioned at the second condenser pipe family 32 of below; The both ends of deflector 6 extend to the two ends of housing 1, and leave the gap between the edge of deflector 6 and housing 1.Like this, the vapor phase refrigerant that flows out from the equal pore 500 of gas averaging board 5 is condensed into liquid gradually at the first condensation tube bundle 31, flow downward along the first condensation tube bundle 31, collect in lateral tilt and deflector 6 places and water conservancy diversion are set to housing 1 edge, then flow to the second condensation tube bundle 32 bottoms along housing 1, avoid liquid phase refrigerant to flow to the condenser pipe surface liquid film thickening that the second condensation tube bundle 32 causes the second condensation tube bundle 32, affect heat transfer effect.
See also Fig. 3 to Fig. 5 and Fig. 7, a kind of specific embodiment of the shell and tube condenser that provides as the utility model, each gripper shoe 4 is provided with the mounting hole site 40 identical with the shape of cross section of deflector 6, deflector 6 is arranged in each mounting hole site 40 and with gripper shoe 4 and welds, and forms sub-assembly and realizes the support of deflector and fix.
further, referring to Fig. 5 and Fig. 7, a kind of specific embodiment of the shell and tube condenser that provides as the utility model, the downside of deflector 6 is provided with at least two the first support members 71 that are used for supporting guide plate 6, the first support member 71 can adopt the mode of welding to be fixedly connected with deflector 6, mounting hole site 40 on each gripper shoe 4 is provided with identical with the first support member 71 quantity to downward-extension, the groove position 401 that allows when be used for installing the first support member 71 support members pass through, play the support to deflector 6, guide effect, when preventing from assembling, deflector 6 distortion can not be inserted gripper shoe 4, the first support member 71 can be pipe, square tube or pole etc.
Further, see also Fig. 3, a kind of specific embodiment of the shell and tube condenser that provides as the utility model, also be provided with respectively one second support member 72 near the both ends of deflector 6 and the downside that is positioned at deflector 6, the welding of the inwall of the two ends of the second support member 72 and housing 1, the both ends of avoiding deflector 6 are long and easily heavily be out of shape from gripper shoe 4.
Further, see also Fig. 4, a kind of specific embodiment of the shell and tube condenser that provides as the utility model, the upper and lower of deflector 6 also is provided with at least four connectors 8 for fixing a plurality of gripper shoes 4 on gripper shoe 4, make between each gripper shoe 4 to form 1 integral body, connect more firmly, relative position remains unchanged, condenser pipe center-aligned on gripper shoe 4 is convenient to follow-up condenser pipe poling.
The utility model also provides a kind of refrigeration unit (not shown).Refrigeration unit comprises throttling unit, evaporimeter and the compressor that is connected successively by connecting pipe, also comprise above-mentioned shell and tube condenser, shell and tube condenser is located between compressor and throttling unit, compressor is tightly connected by pipeline and refrigerant inlet, the throttling unit is connected with liquid outlet by pipeline, forms the refrigerating circuit of refrigerant circulation.
The refrigeration unit that the utility model provides owing to having adopted above-mentioned shell and tube condenser, improves the condenser heat exchange property on the whole, and the unit efficiency improves greatly, and energy consumption obviously reduces.
The above is only preferred embodiment of the present utility model; not in order to limit the utility model; all any modifications of doing within spirit of the present utility model and principle, be equal to and replace and improvement etc., within all should being included in protection domain of the present utility model.

Claims (10)

1. shell and tube condenser comprises the tubular shell of both ends open, and the upside of described housing is provided with refrigerant inlet, and downside is provided with liquid outlet, and the inner horizontal of described housing is provided with the condensation tube bank of being supported by the polylith gripper shoe; It is characterized in that:
Also be fixed with gas averaging board in described housing, and this all gas structure plate be positioned at the below of described refrigerant inlet, two ends of described gas averaging board extend between the two ends of described housing and this both ends and described housing and seal, described gas averaging board and described housing form an equal air cavity, offer a plurality of equal pores except extra-regional all the other zones over against described refrigerant inlet on described gas averaging board.
2. shell and tube condenser as claimed in claim 1, it is characterized in that: described gas averaging board has equal gas base plate and along these equal gas base plate both sides two equal gas side plates and be connected in this all two equal gas baffle plates at gas base plate two ends of bending upwards, described equal air cavity is jointly enclosed by described all gas base plate, two described all gas side plates and two described all gas baffle plates and described housing and forms, and described a plurality of equal pores are located on described all gas base plate.
3. shell and tube condenser as claimed in claim 2, is characterized in that: also be provided with a plurality of described equal pores on each described all gas side plate.
4. shell and tube condenser as claimed in claim 3, is characterized in that: the equidistant evenly distribution of described equal pore.
5. shell and tube condenser as described in claim 1 to 4 any one, it is characterized in that: the medium position that is positioned at described condensation tube bank in described housing also is provided with a deflector, the horizontal direction of described deflector and described housing is the lateral tilt setting, and described deflector is separated into described condensation tube bank the first condenser pipe family that is positioned at the top and is positioned at the second condenser pipe family of below; The both ends of described deflector extend to the two ends of described housing, and leave the gap between the edge of described deflector and described housing.
6. shell and tube condenser as claimed in claim 5, it is characterized in that: each described gripper shoe is provided with the mounting hole site identical with the shape of cross section of described deflector, described deflector be arranged in each described mounting hole site and with described gripper shoe welding.
7. shell and tube condenser as claimed in claim 6, it is characterized in that: the downside of described deflector is provided with at least two the first support members that are used for supporting described deflector, and the mounting hole site on each described gripper shoe is provided with groove position identical with described the first number of strut, that allow described the first support member pass through when being used for installing to downward-extension.
8. shell and tube condenser as claimed in claim 7 is characterized in that: also be provided with respectively one second support member near the both ends of described deflector and the downside that is positioned at described deflector, weld with the inwall of described housing at the two ends of described the second support member.
9. shell and tube condenser as claimed in claim 8 is characterized in that: the upper and lower of described deflector also is provided with at least four connectors for fixing described a plurality of gripper shoes on described gripper shoe.
10. refrigeration unit, comprise the throttling unit, evaporimeter and the compressor that are connected successively by connecting pipe, it is characterized in that: also comprise shell and tube condenser as described in claim 1 to 9 any one, described shell and tube condenser is located between described compressor and described throttling unit, described compressor is tightly connected by pipeline and described refrigerant inlet, described throttling unit is connected with described liquid outlet by pipeline, forms the refrigerating circuit of refrigerant circulation.
CN 201220580273 2012-11-06 2012-11-06 Shell and tube condenser and refrigeration unit Expired - Fee Related CN202973672U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 201220580273 CN202973672U (en) 2012-11-06 2012-11-06 Shell and tube condenser and refrigeration unit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 201220580273 CN202973672U (en) 2012-11-06 2012-11-06 Shell and tube condenser and refrigeration unit

Publications (1)

Publication Number Publication Date
CN202973672U true CN202973672U (en) 2013-06-05

Family

ID=48514738

Family Applications (1)

Application Number Title Priority Date Filing Date
CN 201220580273 Expired - Fee Related CN202973672U (en) 2012-11-06 2012-11-06 Shell and tube condenser and refrigeration unit

Country Status (1)

Country Link
CN (1) CN202973672U (en)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104713382A (en) * 2013-12-13 2015-06-17 浙江盾安机电科技有限公司 Double-temperature-zone shell-and-tube condenser
CN104764258A (en) * 2014-01-02 2015-07-08 约克(无锡)空调冷冻设备有限公司 Shell and tube type condenser
CN104776651A (en) * 2015-04-15 2015-07-15 麦克维尔空调制冷(武汉)有限公司 Condenser
CN104819606A (en) * 2015-05-05 2015-08-05 昆山方佳机械制造有限公司 Condenser capable of reducing influences of condensed liquid film
CN107726676A (en) * 2017-10-09 2018-02-23 珠海格力电器股份有限公司 Heat exchanger package, heat exchanger and air conditioner
CN109141077A (en) * 2018-07-27 2019-01-04 约克(无锡)空调冷冻设备有限公司 condenser
EP3511654A1 (en) * 2018-01-16 2019-07-17 Carrier Corporation Guiding panel for condenser, condenser and refrigeration system
CN111750690A (en) * 2020-05-22 2020-10-09 东南大学 Horizontal tube bundle condenser with obliquely inserted wire mesh drainage tubes

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104713382A (en) * 2013-12-13 2015-06-17 浙江盾安机电科技有限公司 Double-temperature-zone shell-and-tube condenser
CN104764258A (en) * 2014-01-02 2015-07-08 约克(无锡)空调冷冻设备有限公司 Shell and tube type condenser
CN104764258B (en) * 2014-01-02 2017-08-11 约克(无锡)空调冷冻设备有限公司 shell and tube condenser
CN104776651A (en) * 2015-04-15 2015-07-15 麦克维尔空调制冷(武汉)有限公司 Condenser
CN104776651B (en) * 2015-04-15 2017-07-21 麦克维尔空调制冷(武汉)有限公司 A kind of condenser
CN104819606A (en) * 2015-05-05 2015-08-05 昆山方佳机械制造有限公司 Condenser capable of reducing influences of condensed liquid film
CN107726676A (en) * 2017-10-09 2018-02-23 珠海格力电器股份有限公司 Heat exchanger package, heat exchanger and air conditioner
CN107726676B (en) * 2017-10-09 2023-12-05 珠海格力电器股份有限公司 Heat exchanger shell and tube, heat exchanger and air conditioner
EP3511654A1 (en) * 2018-01-16 2019-07-17 Carrier Corporation Guiding panel for condenser, condenser and refrigeration system
US20210239372A1 (en) * 2018-01-16 2021-08-05 Carrier Corporation Guiding panel for condenser, condenser and refrigeration system
US11098934B2 (en) * 2018-01-16 2021-08-24 Carrier Corporation Guiding panel for condenser, condenser and refrigeration system
US11821665B2 (en) * 2018-01-16 2023-11-21 Carrier Corporation Guiding panel for condenser, condenser and refrigeration system
CN109141077A (en) * 2018-07-27 2019-01-04 约克(无锡)空调冷冻设备有限公司 condenser
CN111750690A (en) * 2020-05-22 2020-10-09 东南大学 Horizontal tube bundle condenser with obliquely inserted wire mesh drainage tubes
CN111750690B (en) * 2020-05-22 2021-11-26 东南大学 Horizontal tube bundle condenser with obliquely inserted wire mesh drainage tubes

Similar Documents

Publication Publication Date Title
CN202973672U (en) Shell and tube condenser and refrigeration unit
CN102121760B (en) Parallel flow air conditioner and processing method thereof
CN103216976B (en) A kind of pouring liquid formula heat exchanger
CN205209304U (en) Heat exchanger system
CN202002233U (en) Dehumidifier
CN105020940A (en) Microchannel heat exchanger capable of uniformly distributing refrigerant flow
CN102022867A (en) Shell and tube type condenser for heat recovery
CN104214995B (en) A kind of immersion diaphragm type heat exchanger
CN201440016U (en) Built-in subcooler structure of closed shell and tube condenser
CN202083154U (en) Double-row pipeline heat exchanger
CN202057109U (en) Parallel-flow air conditioning
CN103712378A (en) Parallel flow condenser of automobile air conditioner
CN203413983U (en) Plate type evaporation condenser
CN101738012A (en) Heat exchanger of air conditioner with double rows of pipelines
CN203454474U (en) Micro-channel heat exchanging device and air conditioner
CN201438060U (en) Shell and tube type condenser used for heat reclaim
CN103344135B (en) Plate type evaporative condenser
CN202885353U (en) Double-layer parallel flow evaporator
CN102022870B (en) Method for improving supercooling degree of screw machine set and screw machine set adopting same
CN208566866U (en) Cabinet type indoor machine and air conditioner
CN202719811U (en) Shell and tube heat exchanger with working medium flowing channel with gradually changing sizes
CN108344210B (en) Parallel flow heat exchange system for improving heat exchange efficiency
CN208205201U (en) Cabinet type indoor machine and air conditioner
CN201680652U (en) Heat exchanger with double-row pipelines for air conditioner
CN209991811U (en) Coil pipe for cooling equipment

Legal Events

Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20130605

Termination date: 20191106