GB2525907A - Improved sliding parts for heat exchangers - Google Patents

Improved sliding parts for heat exchangers Download PDF

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Publication number
GB2525907A
GB2525907A GB1408138.4A GB201408138A GB2525907A GB 2525907 A GB2525907 A GB 2525907A GB 201408138 A GB201408138 A GB 201408138A GB 2525907 A GB2525907 A GB 2525907A
Authority
GB
United Kingdom
Prior art keywords
heat exchanger
sliding
area
plastic material
sliding connection
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.)
Withdrawn
Application number
GB1408138.4A
Other versions
GB201408138D0 (en
Inventor
Joachim Conrad
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.)
Linde GmbH
Original Assignee
Linde GmbH
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 Linde GmbH filed Critical Linde GmbH
Priority to GB1408138.4A priority Critical patent/GB2525907A/en
Publication of GB201408138D0 publication Critical patent/GB201408138D0/en
Publication of GB2525907A publication Critical patent/GB2525907A/en
Withdrawn legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C29/00—Bearings for parts moving only linearly
    • F16C29/02—Sliding-contact bearings
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C17/00—Sliding-contact bearings for exclusively rotary movement
    • F16C17/26—Systems consisting of a plurality of sliding-contact bearings
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
    • F16C33/02—Parts of sliding-contact bearings
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
    • F16C33/02—Parts of sliding-contact bearings
    • F16C33/04—Brasses; Bushes; Linings
    • F16C33/20—Sliding surface consisting mainly of plastics
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F9/00—Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
    • F28F9/007—Auxiliary supports for elements
    • F28F9/013—Auxiliary supports for elements for tubes or tube-assemblies
    • F28F9/0131—Auxiliary supports for elements for tubes or tube-assemblies formed by plates
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
    • F16C33/02—Parts of sliding-contact bearings
    • F16C33/04—Brasses; Bushes; Linings
    • F16C33/06—Sliding surface mainly made of metal
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D21/00—Heat-exchange apparatus not covered by any of the groups F28D1/00 - F28D20/00
    • F28D2021/0019—Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for
    • F28D2021/0022—Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for for chemical reactors
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F2265/00—Safety or protection arrangements; Arrangements for preventing malfunction
    • F28F2265/26—Safety or protection arrangements; Arrangements for preventing malfunction for allowing differential expansion between elements
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F2265/00—Safety or protection arrangements; Arrangements for preventing malfunction
    • F28F2265/30—Safety or protection arrangements; Arrangements for preventing malfunction for preventing vibrations
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F9/00—Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
    • F28F9/007—Auxiliary supports for elements
    • F28F9/013—Auxiliary supports for elements for tubes or tube-assemblies

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)

Abstract

A sliding connection between a pair of adjacent heat exchangers 10, 20 comprising a first plate 13 connected to a first heat exchanger 20, a plastics material 4 supported on the first plate, and a second plate 2 supported on and attached to the plastics material and is also connected to a second heat exchanger 10. Movement of the heat exchangers may be in both the vertical and horizontal directions. The plates and plastics material may be attached by screws 12. The connection may be used in low or high temperature applications. In use, the first heat exchanger may be a lower heat exchanger and the second heat exchanger may be an upper heat exchanger. A further embodiment includes a sliding connection between a heat exchanger and a foundation 30.

Description

IMPROVED SLIDTNG PARTS FOR HEAT EXCHANGERS
FIELD OF THE INVENTION
(00!) The invention relates to improvements for sliding parts used in heat exchangers.
BACKGROUND OF THE INYENTTON
(002) Heat exchangers are used extensively in hydrogen plants and other chemical plants.
Both single heat exchanger and stacked heat exchanger arrangements are known. Single heat exchangers are generally supported on a foundation or steel work, while for stacked heat exchanger arrangements, supporting steel work may be in place between the heat exchangers and the lower heat exchanger may be supported on a foundation.
(003) Many heat exchanger arrangements require a flexible design that requires fixed and sliding points to accommodate movement of the heat exchanger arrangement during operation. This is especially true for heat exchangers used in high temperature difference applications, such as cold-hit sides at inlet or outlet channel or cold-hot services in the shell and tube sides.
(004) Sliding parts may be required between the shells of two stacked heat exchangers as well as between the lower heat exchanger and the foundation or steelwork, Single heat exchangers may require sliding parts where supported by the foundation or steel work.
For these sliding parts, a low friction factor is necessary in addition to avoidance of erosion of metal parts. Without these ffictors, parts will need to be repaired or replaced after some operation time.
(005) Some typical heat exchanger arrangements are shown in prior patents and patent applications such as EP082466437; US4305453; EP0288023; and DE102009042507.
(006) There remains a need ihe art for improvements to sliding paris for heal exchanger arrangements.
SUMMARY OF THE PRESENT INVENTION
(007) The invention provides new sliding parts for heat exchanger arrangements that provide greater flexibility of design. The sliding parts of the invention are made of plastic or special plastic material, This material provides the flexibility necessary for the heat exchanger arrangement and also makes maintenance and replacement easier.
BRIE F DESCRIPTION OF THE DRAWINGS
(008) Figure 1 is a schematic view of a stacked heat exchanger arrangement showing areas where sliding parts according to the invention can be used.
(009) Figure 2 is a schematic view of a single heat exchanger arrangement showing an area where sliding parts according to the invention can be used.
(010) Figure 3 is an expanded view of area Detail 1 of Figure I. (Oil) Figure 4 is an expanded view of area Detail 2 of Figure 1 for use in low temperature applications.
(012) Figure 5 is an expanded side view of area Detail 1 or area Detail 2 for low temperature applications of Figure I. (013) Figure 6 is an expanded view of area Detail 2 in Figure 1 for use in high temperature applications.
(014) Figure 7 is an expanded side view of area Detail 2 for high temperature applications of Figure 1 (015) Figure 8 is an expanded view of area Detail 3 of Figure 1.
(016) Figure 9 is an expanded view of area Detail 4 of Figure 2.
(017) Figure ID is an expanded side view of area Detail 4 of Figure 2,
DFTAILFD DESCRIPTION OF THE INVENTION
(018) The invention will be described in detail with reference to the drawing figures.
(019) Figure 1 is a schematic view of a stacked heat exchmger arrangement showing areas where sliding parts according to the invention can be used. In particular, Figure 1 shows a heat exchanger arrangement having an upper heat exchanger 10 supported on a lower heat exchanger 20 which is supported on a foundation 30, Also shown in Figure I are hot side inlet 12, cold side outlet 14, hot side outlet 22, cold side inlet 24 and nozzle connections 26 and 28. The area marked Detail 1 covers a sliding area connection point between upper heat exchanger 10 and lower heat exchanger 20. This sliding area is constructed to allow for both vertical and horizontal movement, The area marked Detail 2 covers another sliding area connection point between upper heat exchanger 10 and lower heat exchanger 20, This sliding area is constructed to allow for horizontal movement.
The area marked Detail 3 covers a sliding area connection point between lower heat exchanger 20 and foundation 30. This sliding area is constructed to allow for horizontal movement.
(020) Figure 2 is a schematic view of a single heat exchanger arrangement showing an area where sliding parts according to the invention can be used. Tn particular, Figure 2 shows a heat exchanger arrangement having a heat exchanger 1 20 supported on a foundation 130. Also shown in Figure 2 are hot side inlet 112, cold side outlet 114, hot side outlet 122, and cold side inlet 124. The area marked Detail 4 covers a sliding area connection point between heat exchanger 120 and foundation 130. This sliding area is constructed to allow for horizontal movement.
(02!) Figure 3 is an expanded view of area Detail 1 of Figure I. Tn this expanded view the sliding area of connection between upper heat exchanger 10 and lower heat exchanger from Figure 1 is shown, This sliding area allows for movement in both the vertical and horizontal directions. The sliding area is made up of a higher portion of heat exchanger shell I and lower portion of heat exchanger shell 5. Between these two parts. are fixed reinforcement plate 2, fixed plastic material 4, protection case 3 and support sliding plate 13. Screws 12 hold the components in place. A calculated gap 6 to allow for movement is also shown.
(022) Figure 4 is an expanded view of area Detail 2 of Figure 1 for use in low temperature applications, in this expanded view a second sliding area of connection between upper heat exchanger 10 and lower heat exchanger 20 from Figure 1 is shown, This sliding area allows for movement in the horizontal direction. Like portions of Detail 2 that are also shown in Detail I are given like reference numerals, The sliding area of Detail 2 is made up of a higher portion of heat exchanger shell 1 and lower portion of heat exchanger shell 5. Between these two parts, are fixed reinforcement plate 2, fixed plastic material 4, protection case 3 and support sliding plate 13. Screws 12 hold the components in place. A calculated gap 6 to allow for movement and a calculated support movement length 11 are also shown.
(023) Figure 5 is an expanded side view of either area Detail 1 or area Detail 2 for low temperature applications of Figure I wherein like portions are again given like reference numerals. Shown in FigureS are higher portion of heat exchanger shell 1, lower portion of heat exchanger shell 5, fixed reinforcement plate 2, fixed plastic material 4, protection case 3 and support sliding plate 13.
(024) Figure 6 is an expanded view of area Detail 2 in Figure 1 for use in high temperature applications. Like Figure 4, this expanded view shows a sliding area of connection between upper heat exchanger 1 0 and lower heat exchanger 20 from Figure 1 that allows for movement in the horizontal direction. Like portions of this Detail 2 are given like reference numerals. The sliding area of this Detail 2 is made up of a higher portion of heat exchanger shell I and lower portion of heat exchanger shell 5 with fixed reinforcement plate 2, fixed plastic material 4, and protection case 3 therebetween, Screws 12 and calculated gap 6 are also shown. For this high temperature application alternative, the structure also includes a high temperature protection case 7.
(025) Figure 7 is an expanded side view of area Detail 2 for high temperature applications of Figure 1 wherein like portions are again given like reference numerals.
Shown in Figure 7 are higher portion of heat exchanger shell 1, lower portion of heat exchanger shell 5, fixed reinforcement plate 2, fixed plastic material 4, protection case 3 and high temperature protection case 7.
(026) Figure 8 is an expanded view of area Detail 3 of Figure I. Tn this expanded view the sliding area of connection between lower heat exchanger 20 and foundation 30 from Figure 1 is shown. This sliding area allows for movement in the horizontal direction. The sliding area is made up of a lower portion of heat exchanger shell 5, fixed reinforcement plate 2, fixed plastic material 4, protection case 3, screws 12, metal sliding phite 8, and concrete foundation 9, The calculated gap 6 and calculated support movement length 11 are also shown.
(027) Figure 9 is an expanded view of area Detail 4 of Figure 2. Tn this expanded view the sliding area of connection between heat exchanger 20 and foundation 30 from Figure 2 is shown. This sliding area allows for movement in the horizontal direction. The sliding area is made up of a lower portion of heat exchanger shell 5, fixed reinforcement plate 2, fixed plastic materia' 4, protection case 3, screws 12, metal sliding plate 8, steelwork 10 and concrete foundation 9. The calculated gap 6 and calculated support movement length 11 are also shown.
(028) Figure 10 is an expanded side view of area Detail 4 of Figure 2 wherein like portions are given like reference numerals. Shown in Figure 10 are lower portion of heat exchanger shell 5, fixed reinforcement plate 2, fixed plastic material 4, protection case 3, metal sliding plate 8, steelwork 10 and concrete foundation 9.
(029) According to the invention the fixed plastic material can be used as shown in the drawing Figures. For low temperature applications, a wide range of plastic material can be used. For high temperature applications, special plastic material, e.g. plastic material that remains stable up to 570°C can be used. As shown in the drawing Figures, the plastic material can be fixed in place using screws making maintenance and repheement of plastic parts easy.
(030) The invention provides a number of advantages. For example, by using plastic material, a very low friction factor can be achieved. Further, the use of plastics allows for movement of the heat exchanger arrangement. Plastic materials can be used for both low temperature and high temperature applications. The invention provides for flexible heat exchanger arrangements that can withstand even extreme movement during operation.
The plastic materials used can easily be replaced upon erosion.
(03!) The heat exchanger arrangements of the invention can be used in hydrogen plants, other chemical plants or refineries, as well as other operations where heat exchangers are needed, The heat exchanger arrangements of the invention are applicable for both low temperature and high temperature operations and to both single and stacked heat exchanger configurations. For even higher temperature applications, the plastic material of the invention could be replaced with material that can withstand such higher temperatures, e.g. plastic-metal or plastic-steel parts.
(032) It is anticipated that other embodiments and variations of the present invention will become readily apparent to the skilled artisan in the light of the foregoing description.

Claims (9)

  1. SWhat is claimed: I A sliding connection between a pair of stacked heat exchangers comprising: a sliding plate connected to a lower heat exchanger of the stacked heat exchangers; a fixed plastic material in a protection case supported on and attached to the sliding plate; and a fixed reinforcement plate supported on and attached to the fixed plastic material and also connected to the upper heat exchanger of the stacked heat exchangers.
  2. 2. The sliding connection of claim I wherein movement is allowed in both the vertical and horizontal directions.
  3. 3. The sliding connection of claim I wherein the sliding plate, fixed plastic material and fixed reinforcement plate are attached by screws.
  4. 4. The sliding connection of claim 1 wherein movement is allowed in the horizontal direction.
  5. 5. The sliding connection of claim I wherein the area of use is a low temperature application.
  6. 6. The sliding connection of claim 1 wherein the area of use is a high temperature application.
  7. 7. A sliding connection between a heat exchanger and a ibundation comprising: a sliding plate connected to the foundation; a fixed plastic material in a protection case supported on and attached to the sliding plate; and a fixed reinforcement plate supported on and attached to the fixed plastic material and also connected to the heat exchanger.
  8. 8. The sliding connection of claim! wherein the slkling plate, fixed plastic material and fixed reinforcement plate are attached by screws.
  9. 9. The sliding connection of claim! wherein movement is allowed in the horizontal direction.
GB1408138.4A 2014-05-08 2014-05-08 Improved sliding parts for heat exchangers Withdrawn GB2525907A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1408138.4A GB2525907A (en) 2014-05-08 2014-05-08 Improved sliding parts for heat exchangers

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1408138.4A GB2525907A (en) 2014-05-08 2014-05-08 Improved sliding parts for heat exchangers

Publications (2)

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GB201408138D0 GB201408138D0 (en) 2014-06-25
GB2525907A true GB2525907A (en) 2015-11-11

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GB1408138.4A Withdrawn GB2525907A (en) 2014-05-08 2014-05-08 Improved sliding parts for heat exchangers

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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1572001A (en) * 1976-03-23 1980-07-23 Maschf Augsburg Nuernberg Ag Dry cooling tower
DD253282A1 (en) * 1986-10-10 1988-01-13 Dsf Waermeanlagenbau FRICTION-RELATED SLIDE BEARINGS FOR STRAIGHT-LONG MOVED PARTS, ESPECIALLY FOR HEATING PIPES
DE102009042507A1 (en) * 2009-09-22 2011-03-24 Linde Ag Heat exchanger arrangement, useful in hydrogen and synthesis gas devices, comprises a first tubular bundle heat exchanger with a housing and a tubular bundle, and a second tubular bundle heat exchanger with a housing and a tubular bundle

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1572001A (en) * 1976-03-23 1980-07-23 Maschf Augsburg Nuernberg Ag Dry cooling tower
DD253282A1 (en) * 1986-10-10 1988-01-13 Dsf Waermeanlagenbau FRICTION-RELATED SLIDE BEARINGS FOR STRAIGHT-LONG MOVED PARTS, ESPECIALLY FOR HEATING PIPES
DE102009042507A1 (en) * 2009-09-22 2011-03-24 Linde Ag Heat exchanger arrangement, useful in hydrogen and synthesis gas devices, comprises a first tubular bundle heat exchanger with a housing and a tubular bundle, and a second tubular bundle heat exchanger with a housing and a tubular bundle

Also Published As

Publication number Publication date
GB201408138D0 (en) 2014-06-25

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