CN110701833A - Water-cooling shell and tube condenser - Google Patents

Water-cooling shell and tube condenser Download PDF

Info

Publication number
CN110701833A
CN110701833A CN201910963267.3A CN201910963267A CN110701833A CN 110701833 A CN110701833 A CN 110701833A CN 201910963267 A CN201910963267 A CN 201910963267A CN 110701833 A CN110701833 A CN 110701833A
Authority
CN
China
Prior art keywords
tube
heat exchange
shell
exchange tube
water
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.)
Pending
Application number
CN201910963267.3A
Other languages
Chinese (zh)
Inventor
宁静红
刘兴华
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.)
Tianjin University of Commerce
Original Assignee
Tianjin University of Commerce
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 Tianjin University of Commerce filed Critical Tianjin University of Commerce
Priority to CN201910963267.3A priority Critical patent/CN110701833A/en
Publication of CN110701833A publication Critical patent/CN110701833A/en
Pending legal-status Critical Current

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25BREFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B39/00Evaporators; Condensers
    • F25B39/04Condensers
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28HEAT EXCHANGE IN GENERAL
    • F28BSTEAM OR VAPOUR CONDENSERS
    • F28B1/00Condensers in which the steam or vapour is separate from the cooling medium by walls, e.g. surface condenser
    • F28B1/02Condensers in which the steam or vapour is separate from the cooling medium by walls, e.g. surface condenser using water or other liquid as the cooling medium
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28HEAT EXCHANGE IN GENERAL
    • F28FDETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F1/00Tubular elements; Assemblies of tubular elements
    • F28F1/10Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses
    • F28F1/12Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element
    • F28F1/34Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element and extending obliquely
    • F28F1/36Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element and extending obliquely the means being helically wound fins or wire spirals
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25BREFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B2339/00Details of evaporators; Details of condensers
    • F25B2339/04Details of condensers
    • F25B2339/047Water-cooled condensers

Abstract

The invention discloses a water-cooling shell-and-tube condenser, which comprises a hollow shell with an inverted 8-shaped structure, wherein two ends of the shell are opened and are respectively connected with a first tube plate and a second tube plate; winding pieces with inclination angles staggered by 180 degrees are respectively wound on the outer circle surfaces of the first heat exchange tube and the second heat exchange tube; the cooling water inlet connecting pipe is connected with an orifice formed in the upper part of the shell and close to the first tube plate, and the cooling water outlet connecting pipe is connected with an orifice formed in the lower part of the shell and close to the second tube plate. The invention utilizes the spiral fins outside the heat exchange tubes to increase the disturbance of the flow process of the cooling medium, has compact structure and reduces the filling amount of the refrigerant.

Description

Water-cooling shell and tube condenser
Technical Field
The invention relates to the technical field of refrigeration, in particular to a water-cooling shell and tube condenser.
Background
In a refrigeration system, a refrigeration compressor discharges high-temperature and high-pressure gas to enter a condenser, the shell-and-tube condenser exchanges heat between refrigerant gas and cooling water, the refrigerant is condensed into liquid, and the conventional condenser has large overall dimension, large refrigerant filling amount, more material consumption and larger heat transfer temperature difference, so that the heat transfer performance is reduced, the pressure ratio of the refrigeration compressor is increased, the performance of the refrigeration system is reduced, and the energy consumption is increased. Therefore, it is necessary to develop a high-efficiency compact condenser to effectively improve the heat transfer efficiency of the condenser and to improve the performance of the refrigeration system.
Disclosure of Invention
The invention aims to provide a water-cooling shell-and-tube condenser aiming at the technical defects in the prior art, so as to solve the problem of high-efficiency heat transfer in the condensation process of a circulating working medium, improve the performance of a refrigerating system and save energy.
The technical scheme adopted by the invention for solving the technical problems is as follows:
a water-cooled shell-and-tube condenser comprises a hollow shell with an inverted 8-shaped structure, wherein two ends of the shell are opened and are respectively connected with a first tube plate and a second tube plate, two ends of first heat exchange tubes and two ends of second heat exchange tubes which are arranged at intervals respectively penetrate through corresponding orifices of the first tube plate and the second tube plate to be sealed and fixed, and an end enclosure is arranged on the outer side of the first tube plate; winding pieces with inclination angles staggered by 180 degrees are respectively wound on the outer circle surfaces of the first heat exchange tube and the second heat exchange tube; the cooling water inlet connecting pipe is connected with an orifice formed in the upper part of the shell and close to the first tube plate, and the cooling water outlet connecting pipe is connected with an orifice formed in the lower part of the shell and close to the second tube plate.
The edge of the end socket is connected with the first tube plate in a welding mode.
Wherein the diameter of the first heat exchange tube is smaller than that of the second heat exchange tube.
The outlet of the first heat exchange tube is connected with the inlet of the throttling and pressure reducing element, and the inlet of the second heat exchange tube is connected with the outlet of the refrigeration compressor.
And two end points of the first heat exchange tube outer winding piece and the second heat exchange tube outer winding piece are respectively fixed with two ends of the first heat exchange tube and the second heat exchange tube in a spot welding manner.
The water-cooled shell-and-tube condenser of the invention utilizes the spiral fins outside the heat exchange tubes to increase the disturbance of the flow process of the cooling medium, has compact structure, reduces the filling amount of the refrigerant, solves the high-efficiency heat transfer in the process of condensing the refrigerant, realizes the performance improvement of a refrigeration system and saves energy.
Drawings
FIG. 1 is a schematic view of a water-cooled shell-and-tube condenser of the present invention;
FIG. 2 is a top view of FIG. 1;
fig. 3 is a sectional view taken along line a-a of fig. 1.
Detailed Description
The invention is described in further detail below with reference to the figures and specific examples.
As shown in fig. 1 to 3, the water-cooled shell-and-tube condenser of the present invention includes:
the cooling water inlet connection pipe 1, the shell 2, a first heat exchange pipe outer winding sheet 3, a second tube sheet 4, a first heat exchange pipe 5, a second heat exchange pipe 6, a cooling water outlet connection pipe 7, a first tube sheet 8, a seal head 9 arranged on the outer side of the first tube sheet, and a second heat exchange pipe outer winding sheet 10; the shell 2 is of a hollow inverted 8-shaped structure, two ends of the shell are open, and the shell is respectively welded with the first tube plate 8 and the second tube plate 4; the cooling water inlet connecting pipe 1 and the upper part of the shell 2 are welded close to an orifice formed by the first tube plate 8, the cooling water outlet connecting pipe 7 and the lower part of the shell 2 are welded close to an orifice formed by the second tube plate 4, two ends of the first heat exchange tube 5 and two ends of the second heat exchange tube 6 respectively penetrate through corresponding orifices of the first tube plate 8 and the second tube plate 4 and are welded, sealed and fixed, and the outer circular surfaces of the first heat exchange tube 5 and the second heat exchange tube 6 are respectively wound with a first heat exchange tube winding piece 3 and a second heat exchange tube winding piece 10 which are staggered by 180 degrees at an inclined angle.
The end socket 9 is arranged on the outer side of the first tube plate, and the edge of the end socket is welded with the first tube plate 8.
Specifically, the diameter of the first heat exchange tube 5 is smaller than that of the second heat exchange tube 6, and the specific sizes of the first heat exchange tube 5 and the second heat exchange tube 6 are determined by calculation according to the heat exchange area and the heat transfer characteristic.
Specifically, the outlet of the first heat exchange tube 5 is connected with the inlet of the throttling and depressurizing element, and the inlet of the second heat exchange tube 6 is connected with the outlet of the refrigeration compressor.
Specifically, two end points of the first heat exchange tube external winding piece 3 and the second heat exchange tube external winding piece 10 are respectively fixed with two ends of the first heat exchange tube 5 and the second heat exchange tube 6 in a spot welding manner.
When the refrigerating system operates, cooling water enters the inter-winding-piece space of the shell 2 through the cooling water inlet connecting pipe 1 and flows out of the shell 2 through the cooling water outlet connecting pipe 7; high-temperature and high-pressure gas discharged by the refrigeration compressor enters the second heat exchange tube 6 to exchange with cooling water flowing between the winding sheets outside the tube, condensed gas-liquid mixed fluid enters the first heat exchange tube 5 through the seal head cavity and continuously exchanges with the cooling water flowing between the winding sheets outside the tube, and condensed liquid enters the throttling and pressure reducing element.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.

Claims (5)

1. A water-cooled shell-and-tube condenser is characterized by comprising a hollow shell with an inverted 8-shaped structure, wherein two ends of the shell are opened and are respectively connected with a first tube plate and a second tube plate; winding pieces with inclination angles staggered by 180 degrees are respectively wound on the outer circle surfaces of the first heat exchange tube and the second heat exchange tube; the cooling water inlet connecting pipe is connected with an orifice formed in the upper part of the shell and close to the first tube plate, and the cooling water outlet connecting pipe is connected with an orifice formed in the lower part of the shell and close to the second tube plate.
2. The water-cooled shell and tube condenser of claim 1, wherein the edge of the head is welded to the first tube sheet.
3. The water-cooled shell and tube condenser of claim 1 wherein the first heat exchange tube has a diameter less than the diameter of the second heat exchange tube.
4. The water-cooled shell and tube condenser of claim 1 wherein the outlet of the first heat exchange tube is connected to the inlet of the throttling pressure reducing element and the inlet of the second heat exchange tube is connected to the outlet of the refrigeration compressor.
5. The water-cooled shell and tube condenser as recited in claim 1, wherein both end points of the first heat exchange tube outer winding piece and the second heat exchange tube outer winding piece are spot-welded to both ends of the first heat exchange tube and the second heat exchange tube, respectively.
CN201910963267.3A 2019-10-11 2019-10-11 Water-cooling shell and tube condenser Pending CN110701833A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201910963267.3A CN110701833A (en) 2019-10-11 2019-10-11 Water-cooling shell and tube condenser

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201910963267.3A CN110701833A (en) 2019-10-11 2019-10-11 Water-cooling shell and tube condenser

Publications (1)

Publication Number Publication Date
CN110701833A true CN110701833A (en) 2020-01-17

Family

ID=69198432

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201910963267.3A Pending CN110701833A (en) 2019-10-11 2019-10-11 Water-cooling shell and tube condenser

Country Status (1)

Country Link
CN (1) CN110701833A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111360249A (en) * 2020-03-26 2020-07-03 湖南维尚科技有限公司 Method and device for recovering forming agent from dewaxing gas
CN111947417A (en) * 2020-08-20 2020-11-17 方家铺子食品有限公司 Energy-saving dry goods circulating hot air drying device

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111360249A (en) * 2020-03-26 2020-07-03 湖南维尚科技有限公司 Method and device for recovering forming agent from dewaxing gas
CN111947417A (en) * 2020-08-20 2020-11-17 方家铺子食品有限公司 Energy-saving dry goods circulating hot air drying device

Similar Documents

Publication Publication Date Title
CN110701833A (en) Water-cooling shell and tube condenser
CN211120739U (en) Structure of heat exchange dewatering of compressed gas freezing dryer
CN210802145U (en) Structure of high-efficient heat transfer dewatering of compressed gas refrigerated dryer
CN101000187A (en) High efficient large fin case tube heat exchanger
CN202328931U (en) Highly-efficient dry shell and tube condensing heat exchanger with super-cooled pipe
CN201909495U (en) Multi-tube coaxial type sleeve heat exchanger
CN210861832U (en) Water-cooling shell and tube condenser
CN204202251U (en) In pipe, high liquid soaks the shell and tube evaporator of fluid interchange
CN108240720A (en) A kind of metallic membrane heat exchanger
KR20110017309A (en) Heat exchanger of refrigerator
CN208735980U (en) Heat exchanger tube water cooled condenser
CN208735969U (en) Integral fins round tube air-cooler
CN202792723U (en) Parallel flow condenser for freezer
CN108679883A (en) Integral fins pipe air-cooler
CN2365633Y (en) Efficient shell type heat exchanger
CN210861823U (en) Cooling liquid evaporator
CN211147362U (en) Heat exchange dewatering structure of compressed gas dryer
KR100925097B1 (en) Water-cooled heat exchanger
CN208124937U (en) A kind of heat exchanger
CN203629154U (en) Sealing strip-contained super-cooler structure in shell-tube condenser
CN203011017U (en) Heat exchanger structure for air conditioner
CN104236174B (en) In pipe, high liquid soaks the shell and tube evaporator of fluid interchange
CN203216370U (en) Tube-shell type heat exchange device
CN208333177U (en) The supercooling of natural gas waste cold and directly contact condensation heat transfer equipment
CN210486597U (en) High-efficient combination formula condensation cooler

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination